diff --git a/Jenkinsfile b/Jenkinsfile
index 28f1cb0bc0e652bcb546995c569f572096afbf28..e6e8a1df322ab4d529c1f7d44664717d278ba194 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -41,6 +41,7 @@ def pre_test(){
     sh '''
     killall -9 taosd ||echo "no taosd running"
     killall -9 gdb || echo "no gdb running"
+    killall -9 python3.8 || echo "no python program running"
     cd ${WKC}
     git reset --hard HEAD~10 >/dev/null
     '''
@@ -223,24 +224,27 @@ pipeline {
           steps {
             pre_test()
             catchError(buildResult: 'SUCCESS', stageResult: 'FAILURE') {
-                sh '''
-                cd ${WKC}/tests/pytest
-                ./crash_gen.sh -a -p -t 4 -s 2000
-                '''
+                timeout(time: 60, unit: 'MINUTES'){
+                  sh '''
+                  cd ${WKC}/tests/pytest
+                  ./crash_gen.sh -a -p -t 4 -s 2000
+                  '''
+                }
+            }
+            timeout(time: 60, unit: 'MINUTES'){
+              sh '''
+              cd ${WKC}/tests/pytest
+              rm -rf /var/lib/taos/*
+              rm -rf /var/log/taos/*
+              ./handle_crash_gen_val_log.sh
+              '''
+              sh '''
+              cd ${WKC}/tests/pytest
+              rm -rf /var/lib/taos/*
+              rm -rf /var/log/taos/*
+              ./handle_taosd_val_log.sh
+              '''
             }
-
-            sh '''
-            cd ${WKC}/tests/pytest
-            rm -rf /var/lib/taos/*
-            rm -rf /var/log/taos/*
-            ./handle_crash_gen_val_log.sh
-            '''
-            sh '''
-            cd ${WKC}/tests/pytest
-            rm -rf /var/lib/taos/*
-            rm -rf /var/log/taos/*
-            ./handle_taosd_val_log.sh
-            '''
             timeout(time: 45, unit: 'MINUTES'){
                 sh '''
                 date
diff --git a/src/client/src/tscParseLineProtocol.c b/src/client/src/tscParseLineProtocol.c
index 69e55fd3339c7dac3de80872dbb3a0f09fc38a6e..2a16f1aad6525a25da652f643dc7b7f91debd432 100644
--- a/src/client/src/tscParseLineProtocol.c
+++ b/src/client/src/tscParseLineProtocol.c
@@ -1417,7 +1417,7 @@ static bool isTimeStamp(char *pVal, uint16_t len, SMLTimeStampType *tsType) {
   return false;
 }
 
-static bool convertStrToNumber(TAOS_SML_KV *pVal, char*str) {
+static bool convertStrToNumber(TAOS_SML_KV *pVal, char*str, SSmlLinesInfo* info) {
   errno = 0;
   uint8_t type = pVal->type;
   int16_t length = pVal->length;
@@ -1436,7 +1436,7 @@ static bool convertStrToNumber(TAOS_SML_KV *pVal, char*str) {
   }
 
   if (errno == ERANGE) {
-    tscError("Converted number out of range");
+    tscError("SML:0x%"PRIx64" Convert number(%s) out of range", info->id, str);
     return false;
   }
 
@@ -1518,7 +1518,7 @@ static bool convertStrToNumber(TAOS_SML_KV *pVal, char*str) {
 }
 //len does not include '\0' from value.
 static bool convertSmlValueType(TAOS_SML_KV *pVal, char *value,
-                                uint16_t len) {
+                                uint16_t len, SSmlLinesInfo* info) {
   if (len <= 0) {
     return false;
   }
@@ -1528,7 +1528,7 @@ static bool convertSmlValueType(TAOS_SML_KV *pVal, char *value,
     pVal->type = TSDB_DATA_TYPE_TINYINT;
     pVal->length = (int16_t)tDataTypes[pVal->type].bytes;
     value[len - 2] = '\0';
-    if (!isValidInteger(value) || !convertStrToNumber(pVal, value)) {
+    if (!isValidInteger(value) || !convertStrToNumber(pVal, value, info)) {
       return false;
     }
     return true;
@@ -1537,7 +1537,7 @@ static bool convertSmlValueType(TAOS_SML_KV *pVal, char *value,
     pVal->type = TSDB_DATA_TYPE_UTINYINT;
     pVal->length = (int16_t)tDataTypes[pVal->type].bytes;
     value[len - 2] = '\0';
-    if (!isValidInteger(value) || !convertStrToNumber(pVal, value)) {
+    if (!isValidInteger(value) || !convertStrToNumber(pVal, value, info)) {
       return false;
     }
     return true;
@@ -1546,7 +1546,7 @@ static bool convertSmlValueType(TAOS_SML_KV *pVal, char *value,
     pVal->type = TSDB_DATA_TYPE_SMALLINT;
     pVal->length = (int16_t)tDataTypes[pVal->type].bytes;
     value[len - 3] = '\0';
-    if (!isValidInteger(value) || !convertStrToNumber(pVal, value)) {
+    if (!isValidInteger(value) || !convertStrToNumber(pVal, value, info)) {
       return false;
     }
     return true;
@@ -1555,7 +1555,7 @@ static bool convertSmlValueType(TAOS_SML_KV *pVal, char *value,
     pVal->type = TSDB_DATA_TYPE_USMALLINT;
     pVal->length = (int16_t)tDataTypes[pVal->type].bytes;
     value[len - 3] = '\0';
-    if (!isValidInteger(value) || !convertStrToNumber(pVal, value)) {
+    if (!isValidInteger(value) || !convertStrToNumber(pVal, value, info)) {
       return false;
     }
     return true;
@@ -1564,7 +1564,7 @@ static bool convertSmlValueType(TAOS_SML_KV *pVal, char *value,
     pVal->type = TSDB_DATA_TYPE_INT;
     pVal->length = (int16_t)tDataTypes[pVal->type].bytes;
     value[len - 3] = '\0';
-    if (!isValidInteger(value) || !convertStrToNumber(pVal, value)) {
+    if (!isValidInteger(value) || !convertStrToNumber(pVal, value, info)) {
       return false;
     }
     return true;
@@ -1573,7 +1573,7 @@ static bool convertSmlValueType(TAOS_SML_KV *pVal, char *value,
     pVal->type = TSDB_DATA_TYPE_UINT;
     pVal->length = (int16_t)tDataTypes[pVal->type].bytes;
     value[len - 3] = '\0';
-    if (!isValidInteger(value) || !convertStrToNumber(pVal, value)) {
+    if (!isValidInteger(value) || !convertStrToNumber(pVal, value, info)) {
       return false;
     }
     return true;
@@ -1582,7 +1582,7 @@ static bool convertSmlValueType(TAOS_SML_KV *pVal, char *value,
     pVal->type = TSDB_DATA_TYPE_BIGINT;
     pVal->length = (int16_t)tDataTypes[pVal->type].bytes;
     value[len - 3] = '\0';
-    if (!isValidInteger(value) || !convertStrToNumber(pVal, value)) {
+    if (!isValidInteger(value) || !convertStrToNumber(pVal, value, info)) {
       return false;
     }
     return true;
@@ -1591,7 +1591,7 @@ static bool convertSmlValueType(TAOS_SML_KV *pVal, char *value,
     pVal->type = TSDB_DATA_TYPE_UBIGINT;
     pVal->length = (int16_t)tDataTypes[pVal->type].bytes;
     value[len - 3] = '\0';
-    if (!isValidInteger(value) || !convertStrToNumber(pVal, value)) {
+    if (!isValidInteger(value) || !convertStrToNumber(pVal, value, info)) {
       return false;
     }
     return true;
@@ -1601,7 +1601,7 @@ static bool convertSmlValueType(TAOS_SML_KV *pVal, char *value,
     pVal->type = TSDB_DATA_TYPE_FLOAT;
     pVal->length = (int16_t)tDataTypes[pVal->type].bytes;
     value[len - 3] = '\0';
-    if (!isValidFloat(value) || !convertStrToNumber(pVal, value)) {
+    if (!isValidFloat(value) || !convertStrToNumber(pVal, value, info)) {
       return false;
     }
     return true;
@@ -1610,7 +1610,7 @@ static bool convertSmlValueType(TAOS_SML_KV *pVal, char *value,
     pVal->type = TSDB_DATA_TYPE_DOUBLE;
     pVal->length = (int16_t)tDataTypes[pVal->type].bytes;
     value[len - 3] = '\0';
-    if (!isValidFloat(value) || !convertStrToNumber(pVal, value)) {
+    if (!isValidFloat(value) || !convertStrToNumber(pVal, value, info)) {
       return false;
     }
     return true;
@@ -1646,7 +1646,7 @@ static bool convertSmlValueType(TAOS_SML_KV *pVal, char *value,
   if (isValidInteger(value) || isValidFloat(value)) {
     pVal->type = TSDB_DATA_TYPE_FLOAT;
     pVal->length = (int16_t)tDataTypes[pVal->type].bytes;
-    if (!convertStrToNumber(pVal, value)) {
+    if (!convertStrToNumber(pVal, value, info)) {
       return false;
     }
     return true;
@@ -1702,7 +1702,7 @@ static int32_t getTimeStampValue(char *value, uint16_t len,
 }
 
 static int32_t convertSmlTimeStamp(TAOS_SML_KV *pVal, char *value,
-                                   uint16_t len) {
+                                   uint16_t len, SSmlLinesInfo* info) {
   int32_t ret;
   SMLTimeStampType type;
   int64_t tsVal;
@@ -1715,7 +1715,7 @@ static int32_t convertSmlTimeStamp(TAOS_SML_KV *pVal, char *value,
   if (ret) {
     return ret;
   }
-  tscDebug("Timestamp after conversion:%"PRId64, tsVal);
+  tscDebug("SML:0x%"PRIx64"Timestamp after conversion:%"PRId64, info->id, tsVal);
 
   pVal->type = TSDB_DATA_TYPE_TIMESTAMP;
   pVal->length = (int16_t)tDataTypes[pVal->type].bytes;
@@ -1724,7 +1724,7 @@ static int32_t convertSmlTimeStamp(TAOS_SML_KV *pVal, char *value,
   return TSDB_CODE_SUCCESS;
 }
 
-static int32_t parseSmlTimeStamp(TAOS_SML_KV **pTS, const char **index) {
+static int32_t parseSmlTimeStamp(TAOS_SML_KV **pTS, const char **index, SSmlLinesInfo* info) {
   const char *start, *cur;
   int32_t ret = TSDB_CODE_SUCCESS;
   int len = 0;
@@ -1744,7 +1744,7 @@ static int32_t parseSmlTimeStamp(TAOS_SML_KV **pTS, const char **index) {
     memcpy(value, start, len);
   }
 
-  ret = convertSmlTimeStamp(*pTS, value, len);
+  ret = convertSmlTimeStamp(*pTS, value, len, info);
   if (ret) {
     free(value);
     free(*pTS);
@@ -1757,7 +1757,7 @@ static int32_t parseSmlTimeStamp(TAOS_SML_KV **pTS, const char **index) {
   return ret;
 }
 
-static bool checkDuplicateKey(char *key, SHashObj *pHash) {
+static bool checkDuplicateKey(char *key, SHashObj *pHash, SSmlLinesInfo* info) {
   char *val = NULL;
   char *cur = key;
   char keyLower[TSDB_COL_NAME_LEN];
@@ -1771,7 +1771,7 @@ static bool checkDuplicateKey(char *key, SHashObj *pHash) {
 
   val = taosHashGet(pHash, keyLower, keyLen);
   if (val) {
-    tscError("Duplicate key:%s", keyLower);
+    tscError("SML:0x%"PRIx64" Duplicate key detected:%s", info->id, keyLower);
     return true;
   }
 
@@ -1781,19 +1781,19 @@ static bool checkDuplicateKey(char *key, SHashObj *pHash) {
   return false;
 }
 
-static int32_t parseSmlKey(TAOS_SML_KV *pKV, const char **index, SHashObj *pHash) {
+static int32_t parseSmlKey(TAOS_SML_KV *pKV, const char **index, SHashObj *pHash, SSmlLinesInfo* info) {
   const char *cur = *index;
   char key[TSDB_COL_NAME_LEN + 1];  // +1 to avoid key[len] over write
   uint16_t len = 0;
 
   //key field cannot start with digit
   if (isdigit(*cur)) {
-    tscError("Tag key cannnot start with digit\n");
+    tscError("SML:0x%"PRIx64" Tag key cannnot start with digit", info->id);
     return TSDB_CODE_TSC_LINE_SYNTAX_ERROR;
   }
   while (*cur != '\0') {
     if (len > TSDB_COL_NAME_LEN) {
-      tscDebug("Key field cannot exceeds 65 characters");
+      tscError("SML:0x%"PRIx64" Key field cannot exceeds 65 characters", info->id);
       return TSDB_CODE_TSC_LINE_SYNTAX_ERROR;
     }
     //unescaped '=' identifies a tag key
@@ -1810,20 +1810,20 @@ static int32_t parseSmlKey(TAOS_SML_KV *pKV, const char **index, SHashObj *pHash
   }
   key[len] = '\0';
 
-  if (checkDuplicateKey(key, pHash)) {
+  if (checkDuplicateKey(key, pHash, info)) {
     return TSDB_CODE_TSC_LINE_SYNTAX_ERROR;
   }
 
   pKV->key = calloc(len + 1, 1);
   memcpy(pKV->key, key, len + 1);
-  //tscDebug("Key:%s|len:%d", pKV->key, len);
+  //tscDebug("SML:0x%"PRIx64" Key:%s|len:%d", info->id, pKV->key, len);
   *index = cur + 1;
   return TSDB_CODE_SUCCESS;
 }
 
 
 static bool parseSmlValue(TAOS_SML_KV *pKV, const char **index,
-                          bool *is_last_kv) {
+                          bool *is_last_kv, SSmlLinesInfo* info) {
   const char *start, *cur;
   char *value = NULL;
   uint16_t len = 0;
@@ -1847,7 +1847,9 @@ static bool parseSmlValue(TAOS_SML_KV *pKV, const char **index,
   value = calloc(len + 1, 1);
   memcpy(value, start, len);
   value[len] = '\0';
-  if (!convertSmlValueType(pKV, value, len)) {
+  if (!convertSmlValueType(pKV, value, len, info)) {
+    tscError("SML:0x%"PRIx64" Failed to convert sml value string(%s) to any type",
+            info->id, value);
     //free previous alocated key field
     free(pKV->key);
     pKV->key = NULL;
@@ -1861,7 +1863,7 @@ static bool parseSmlValue(TAOS_SML_KV *pKV, const char **index,
 }
 
 static int32_t parseSmlMeasurement(TAOS_SML_DATA_POINT *pSml, const char **index,
-                                   uint8_t *has_tags) {
+                                   uint8_t *has_tags, SSmlLinesInfo* info) {
   const char *cur = *index;
   uint16_t len = 0;
 
@@ -1870,7 +1872,7 @@ static int32_t parseSmlMeasurement(TAOS_SML_DATA_POINT *pSml, const char **index
       return TSDB_CODE_TSC_OUT_OF_MEMORY;
   }
   if (isdigit(*cur)) {
-    tscError("Measurement field cannnot start with digit");
+    tscError("SML:0x%"PRIx64" Measurement field cannnot start with digit", info->id);
     free(pSml->stableName);
     pSml->stableName = NULL;
     return TSDB_CODE_TSC_LINE_SYNTAX_ERROR;
@@ -1878,7 +1880,7 @@ static int32_t parseSmlMeasurement(TAOS_SML_DATA_POINT *pSml, const char **index
 
   while (*cur != '\0') {
     if (len > TSDB_TABLE_NAME_LEN) {
-      tscError("Measurement field cannot exceeds 193 characters");
+      tscError("SML:0x%"PRIx64" Measurement field cannot exceeds 193 characters", info->id);
       free(pSml->stableName);
       pSml->stableName = NULL;
       return TSDB_CODE_TSC_LINE_SYNTAX_ERROR;
@@ -1902,7 +1904,7 @@ static int32_t parseSmlMeasurement(TAOS_SML_DATA_POINT *pSml, const char **index
   }
   pSml->stableName[len] = '\0';
   *index = cur + 1;
-  tscDebug("Stable name in measurement:%s|len:%d", pSml->stableName, len);
+  tscDebug("SML:0x%"PRIx64" Stable name in measurement:%s|len:%d", info->id, pSml->stableName, len);
 
   return TSDB_CODE_SUCCESS;
 }
@@ -1921,7 +1923,8 @@ static int32_t isValidChildTableName(const char *pTbName, int16_t len) {
 
 static int32_t parseSmlKvPairs(TAOS_SML_KV **pKVs, int *num_kvs,
                                const char **index, bool isField,
-                               TAOS_SML_DATA_POINT* smlData, SHashObj *pHash) {
+                               TAOS_SML_DATA_POINT* smlData, SHashObj *pHash,
+                               SSmlLinesInfo* info) {
   const char *cur = *index;
   int32_t ret = TSDB_CODE_SUCCESS;
   TAOS_SML_KV *pkv;
@@ -1941,14 +1944,14 @@ static int32_t parseSmlKvPairs(TAOS_SML_KV **pKVs, int *num_kvs,
   }
 
   while (*cur != '\0') {
-    ret = parseSmlKey(pkv, &cur, pHash);
+    ret = parseSmlKey(pkv, &cur, pHash, info);
     if (ret) {
-      tscError("Unable to parse key field");
+      tscError("SML:0x%"PRIx64" Unable to parse key", info->id);
       goto error;
     }
-    ret = parseSmlValue(pkv, &cur, &is_last_kv);
+    ret = parseSmlValue(pkv, &cur, &is_last_kv, info);
     if (ret) {
-      tscError("Unable to parse value field");
+      tscError("SML:0x%"PRIx64" Unable to parse value", info->id);
       goto error;
     }
     if (!isField &&
@@ -1966,7 +1969,6 @@ static int32_t parseSmlKvPairs(TAOS_SML_KV **pKVs, int *num_kvs,
       *num_kvs += 1;
     }
     if (is_last_kv) {
-      //tscDebug("last key-value field detected");
       goto done;
     }
 
@@ -2024,50 +2026,50 @@ static void moveTimeStampToFirstKv(TAOS_SML_DATA_POINT** smlData, TAOS_SML_KV *t
   free(ts);
 }
 
-int32_t tscParseLine(const char* sql, TAOS_SML_DATA_POINT* smlData) {
+int32_t tscParseLine(const char* sql, TAOS_SML_DATA_POINT* smlData, SSmlLinesInfo* info) {
   const char* index = sql;
   int32_t ret = TSDB_CODE_SUCCESS;
   uint8_t has_tags = 0;
   TAOS_SML_KV *timestamp = NULL;
   SHashObj *keyHashTable = taosHashInit(128, taosGetDefaultHashFunction(TSDB_DATA_TYPE_BINARY), true, false);
 
-  ret = parseSmlMeasurement(smlData, &index, &has_tags);
+  ret = parseSmlMeasurement(smlData, &index, &has_tags, info);
   if (ret) {
-    tscError("Unable to parse measurement");
+    tscError("SML:0x%"PRIx64" Unable to parse measurement", info->id);
     taosHashCleanup(keyHashTable);
     return ret;
   }
-  tscDebug("Parse measurement finished, has_tags:%d", has_tags);
+  tscDebug("SML:0x%"PRIx64" Parse measurement finished, has_tags:%d", info->id, has_tags);
 
   //Parse Tags
   if (has_tags) {
-    ret = parseSmlKvPairs(&smlData->tags, &smlData->tagNum, &index, false, smlData, keyHashTable);
+    ret = parseSmlKvPairs(&smlData->tags, &smlData->tagNum, &index, false, smlData, keyHashTable, info);
     if (ret) {
-      tscError("Unable to parse tag");
+      tscError("SML:0x%"PRIx64" Unable to parse tag", info->id);
       taosHashCleanup(keyHashTable);
       return ret;
     }
   }
-  tscDebug("Parse tags finished, num of tags:%d", smlData->tagNum);
+  tscDebug("SML:0x%"PRIx64" Parse tags finished, num of tags:%d", info->id, smlData->tagNum);
 
   //Parse fields
-  ret = parseSmlKvPairs(&smlData->fields, &smlData->fieldNum, &index, true, smlData, keyHashTable);
+  ret = parseSmlKvPairs(&smlData->fields, &smlData->fieldNum, &index, true, smlData, keyHashTable, info);
   if (ret) {
-    tscError("Unable to parse field");
+    tscError("SML:0x%"PRIx64" Unable to parse field", info->id);
     taosHashCleanup(keyHashTable);
     return ret;
   }
-  tscDebug("Parse fields finished, num of fields:%d", smlData->fieldNum);
+  tscDebug("SML:0x%"PRIx64" Parse fields finished, num of fields:%d", info->id, smlData->fieldNum);
   taosHashCleanup(keyHashTable);
 
   //Parse timestamp
-  ret = parseSmlTimeStamp(&timestamp, &index);
+  ret = parseSmlTimeStamp(&timestamp, &index, info);
   if (ret) {
-    tscError("Unable to parse timestamp");
+    tscError("SML:0x%"PRIx64" Unable to parse timestamp", info->id);
     return ret;
   }
   moveTimeStampToFirstKv(&smlData, timestamp);
-  tscDebug("Parse timestamp finished");
+  tscDebug("SML:0x%"PRIx64" Parse timestamp finished", info->id);
 
   return TSDB_CODE_SUCCESS;
 }
@@ -2104,7 +2106,7 @@ void destroySmlDataPoint(TAOS_SML_DATA_POINT* point) {
 int32_t tscParseLines(char* lines[], int numLines, SArray* points, SArray* failedLines, SSmlLinesInfo* info) {
   for (int32_t i = 0; i < numLines; ++i) {
     TAOS_SML_DATA_POINT point = {0};
-    int32_t code = tscParseLine(lines[i], &point);
+    int32_t code = tscParseLine(lines[i], &point, info);
     if (code != TSDB_CODE_SUCCESS) {
       tscError("SML:0x%"PRIx64" data point line parse failed. line %d : %s", info->id, i, lines[i]);
       destroySmlDataPoint(&point);
diff --git a/src/kit/taosdemo/taosdemo.c b/src/kit/taosdemo/taosdemo.c
index 5ac85f87f1a7f9055241cf8f813c75b9bc72f46a..d04bb2905f0d67c8614cd7594a1aa84213752964 100644
--- a/src/kit/taosdemo/taosdemo.c
+++ b/src/kit/taosdemo/taosdemo.c
@@ -5093,7 +5093,9 @@ static int getRowDataFromSample(
 
 static int64_t generateStbRowData(
         SSuperTable* stbInfo,
-        char* recBuf, int64_t timestamp)
+        char* recBuf,
+        int64_t remainderBufLen,
+        int64_t timestamp)
 {
     int64_t   dataLen = 0;
     char  *pstr = recBuf;
@@ -5121,6 +5123,7 @@ static int64_t generateStbRowData(
             rand_string(buf, stbInfo->columns[i].dataLen);
             dataLen += snprintf(pstr + dataLen, maxLen - dataLen, "\'%s\',", buf);
             tmfree(buf);
+
         } else {
             char *tmp;
 
@@ -5177,6 +5180,9 @@ static int64_t generateStbRowData(
             tstrncpy(pstr + dataLen, ",", 2);
             dataLen += 1;
         }
+
+        if (dataLen > remainderBufLen)
+            return 0;
     }
 
     dataLen -= 1;
@@ -5383,7 +5389,7 @@ static int32_t generateDataTailWithoutStb(
 
     int32_t k = 0;
     for (k = 0; k < batch;) {
-        char data[MAX_DATA_SIZE];
+        char *data = pstr;
         memset(data, 0, MAX_DATA_SIZE);
 
         int64_t retLen = 0;
@@ -5407,7 +5413,7 @@ static int32_t generateDataTailWithoutStb(
         if (len > remainderBufLen)
             break;
 
-        pstr += sprintf(pstr, "%s", data);
+        pstr += retLen;
         k++;
         len += retLen;
         remainderBufLen -= retLen;
@@ -5463,14 +5469,14 @@ static int32_t generateStbDataTail(
 
     int32_t k;
     for (k = 0; k < batch;) {
-        char data[MAX_DATA_SIZE];
-        memset(data, 0, MAX_DATA_SIZE);
+        char *data = pstr;
 
         int64_t lenOfRow = 0;
 
         if (tsRand) {
             if (superTblInfo->disorderRatio > 0) {
                 lenOfRow = generateStbRowData(superTblInfo, data,
+                        remainderBufLen,
                         startTime + getTSRandTail(
                             superTblInfo->timeStampStep, k,
                             superTblInfo->disorderRatio,
@@ -5478,6 +5484,7 @@ static int32_t generateStbDataTail(
                         );
             } else {
                 lenOfRow = generateStbRowData(superTblInfo, data,
+                        remainderBufLen,
                         startTime + superTblInfo->timeStampStep * k
                         );
             }
@@ -5490,11 +5497,15 @@ static int32_t generateStbDataTail(
                     pSamplePos);
         }
 
+        if (lenOfRow == 0) {
+            data[0] = '\0';
+            break;
+        }
         if ((lenOfRow + 1) > remainderBufLen) {
             break;
         }
 
-        pstr += snprintf(pstr , lenOfRow + 1, "%s", data);
+        pstr += lenOfRow;
         k++;
         len += lenOfRow;
         remainderBufLen -= lenOfRow;
@@ -6246,7 +6257,7 @@ static int32_t generateStbProgressiveData(
     assert(buffer != NULL);
     char *pstr = buffer;
 
-    memset(buffer, 0, *pRemainderBufLen);
+    memset(pstr, 0, *pRemainderBufLen);
 
     int64_t headLen = generateStbSQLHead(
             superTblInfo,
@@ -6640,7 +6651,7 @@ static void* syncWriteProgressive(threadInfo *pThreadInfo) {
                 return NULL;
             }
 
-            int64_t remainderBufLen = maxSqlLen;
+            int64_t remainderBufLen = maxSqlLen - 2000;
             char *pstr = pThreadInfo->buffer;
 
             int len = snprintf(pstr,
@@ -6822,10 +6833,14 @@ static void callBack(void *param, TAOS_RES *res, int code) {
                 && rand_num < pThreadInfo->superTblInfo->disorderRatio) {
             int64_t d = pThreadInfo->lastTs
                 - (taosRandom() % pThreadInfo->superTblInfo->disorderRange + 1);
-            generateStbRowData(pThreadInfo->superTblInfo, data, d);
+            generateStbRowData(pThreadInfo->superTblInfo, data,
+                    MAX_DATA_SIZE,
+                    d);
         } else {
             generateStbRowData(pThreadInfo->superTblInfo,
-                    data, pThreadInfo->lastTs += 1000);
+                    data,
+                    MAX_DATA_SIZE,
+                    pThreadInfo->lastTs += 1000);
         }
         pstr += sprintf(pstr, "%s", data);
         pThreadInfo->counter++;
@@ -7050,6 +7065,7 @@ static void startMultiThreadInsertData(int threads, char* db_name,
     for (int i = 0; i < threads; i++) {
         threadInfo *pThreadInfo = infos + i;
         pThreadInfo->threadID = i;
+
         tstrncpy(pThreadInfo->db_name, db_name, TSDB_DB_NAME_LEN);
         pThreadInfo->time_precision = timePrec;
         pThreadInfo->superTblInfo = superTblInfo;
diff --git a/src/kit/taosdump/taosdump.c b/src/kit/taosdump/taosdump.c
index dc36dbf6714b0f3de31e40dfc1bcebaeb2c61223..e3f3880f0cee97b3297b23d48b2229a12ff4c682 100644
--- a/src/kit/taosdump/taosdump.c
+++ b/src/kit/taosdump/taosdump.c
@@ -307,7 +307,7 @@ static void taosDumpCreateTableClause(STableDef *tableDes, int numOfCols,
         FILE *fp, char* dbName);
 static void taosDumpCreateMTableClause(STableDef *tableDes, char *metric,
         int numOfCols, FILE *fp, char* dbName);
-static int32_t taosDumpTable(char *table, char *metric,
+static int32_t taosDumpTable(char *tbName, char *metric,
         FILE *fp, TAOS* taosCon, char* dbName);
 static int taosDumpTableData(FILE *fp, char *tbName,
         TAOS* taosCon, char* dbName,
@@ -340,7 +340,7 @@ struct arguments g_args = {
     false,      // schemeonly
     true,       // with_property
     false,      // avro format
-    -INT64_MAX,          // start_time
+    -INT64_MAX, // start_time
     INT64_MAX,  // end_time
     "ms",       // precision
     1,          // data_batch
@@ -798,11 +798,11 @@ static int taosGetTableRecordInfo(
         tstrncpy(pTableRecordInfo->tableRecord.name,
                 (char *)row[TSDB_SHOW_TABLES_NAME_INDEX],
                 min(TSDB_TABLE_NAME_LEN,
-                    fields[TSDB_SHOW_TABLES_NAME_INDEX].bytes) + 1);
+                    fields[TSDB_SHOW_TABLES_NAME_INDEX].bytes + 1));
         tstrncpy(pTableRecordInfo->tableRecord.metric,
                 (char *)row[TSDB_SHOW_TABLES_METRIC_INDEX],
                 min(TSDB_TABLE_NAME_LEN,
-                    fields[TSDB_SHOW_TABLES_METRIC_INDEX].bytes) + 1);
+                    fields[TSDB_SHOW_TABLES_METRIC_INDEX].bytes + 1));
         break;
     }
 
@@ -945,7 +945,7 @@ static int32_t taosSaveTableOfMetricToTempFile(
 
     int32_t  numOfThread = *totalNumOfThread;
     int      subFd = -1;
-    for (; numOfThread < maxThreads; numOfThread++) {
+    for (; numOfThread <= maxThreads; numOfThread++) {
         memset(tmpBuf, 0, MAX_FILE_NAME_LEN);
         sprintf(tmpBuf, ".tables.tmp.%d", numOfThread);
         subFd = open(tmpBuf, O_RDWR | O_CREAT | O_TRUNC, S_IRWXU | S_IRGRP | S_IXGRP | S_IROTH);
@@ -1084,7 +1084,7 @@ _dump_db_point:
         }
 
         tstrncpy(g_dbInfos[count]->name, (char *)row[TSDB_SHOW_DB_NAME_INDEX],
-                min(TSDB_DB_NAME_LEN, fields[TSDB_SHOW_DB_NAME_INDEX].bytes) + 1);
+                min(TSDB_DB_NAME_LEN, fields[TSDB_SHOW_DB_NAME_INDEX].bytes + 1));
         if (g_args.with_property) {
             g_dbInfos[count]->ntables = *((int32_t *)row[TSDB_SHOW_DB_NTABLES_INDEX]);
             g_dbInfos[count]->vgroups = *((int32_t *)row[TSDB_SHOW_DB_VGROUPS_INDEX]);
@@ -1093,7 +1093,7 @@ _dump_db_point:
             g_dbInfos[count]->days = *((int16_t *)row[TSDB_SHOW_DB_DAYS_INDEX]);
 
             tstrncpy(g_dbInfos[count]->keeplist, (char *)row[TSDB_SHOW_DB_KEEP_INDEX],
-                    min(32, fields[TSDB_SHOW_DB_KEEP_INDEX].bytes) + 1);
+                    min(32, fields[TSDB_SHOW_DB_KEEP_INDEX].bytes + 1));
             //g_dbInfos[count]->daysToKeep = *((int16_t *)row[TSDB_SHOW_DB_KEEP_INDEX]);
             //g_dbInfos[count]->daysToKeep1;
             //g_dbInfos[count]->daysToKeep2;
@@ -1107,7 +1107,7 @@ _dump_db_point:
             g_dbInfos[count]->cachelast = (int8_t)(*((int8_t *)row[TSDB_SHOW_DB_CACHELAST_INDEX]));
 
             tstrncpy(g_dbInfos[count]->precision, (char *)row[TSDB_SHOW_DB_PRECISION_INDEX],
-                    min(8, fields[TSDB_SHOW_DB_PRECISION_INDEX].bytes) + 1);
+                    min(8, fields[TSDB_SHOW_DB_PRECISION_INDEX].bytes + 1));
             //g_dbInfos[count]->precision = *((int8_t *)row[TSDB_SHOW_DB_PRECISION_INDEX]);
             g_dbInfos[count]->update = *((int8_t *)row[TSDB_SHOW_DB_UPDATE_INDEX]);
         }
@@ -1237,7 +1237,7 @@ _exit_failure:
 
 static int taosGetTableDes(
         char* dbName, char *table,
-        STableDef *tableDes, TAOS* taosCon, bool isSuperTable) {
+        STableDef *stableDes, TAOS* taosCon, bool isSuperTable) {
     TAOS_ROW row = NULL;
     TAOS_RES* res = NULL;
     int count = 0;
@@ -1256,18 +1256,18 @@ static int taosGetTableDes(
 
     TAOS_FIELD *fields = taos_fetch_fields(res);
 
-    tstrncpy(tableDes->name, table, TSDB_TABLE_NAME_LEN);
+    tstrncpy(stableDes->name, table, TSDB_TABLE_NAME_LEN);
     while ((row = taos_fetch_row(res)) != NULL) {
-        tstrncpy(tableDes->cols[count].field,
+        tstrncpy(stableDes->cols[count].field,
                 (char *)row[TSDB_DESCRIBE_METRIC_FIELD_INDEX],
                 min(TSDB_COL_NAME_LEN + 1,
                     fields[TSDB_DESCRIBE_METRIC_FIELD_INDEX].bytes + 1));
-        tstrncpy(tableDes->cols[count].type,
+        tstrncpy(stableDes->cols[count].type,
                 (char *)row[TSDB_DESCRIBE_METRIC_TYPE_INDEX],
                 min(16, fields[TSDB_DESCRIBE_METRIC_TYPE_INDEX].bytes + 1));
-        tableDes->cols[count].length =
+        stableDes->cols[count].length =
             *((int *)row[TSDB_DESCRIBE_METRIC_LENGTH_INDEX]);
-        tstrncpy(tableDes->cols[count].note,
+        tstrncpy(stableDes->cols[count].note,
                 (char *)row[TSDB_DESCRIBE_METRIC_NOTE_INDEX],
                 min(COL_NOTE_LEN,
                     fields[TSDB_DESCRIBE_METRIC_NOTE_INDEX].bytes + 1));
@@ -1284,11 +1284,11 @@ static int taosGetTableDes(
 
     // if chidl-table have tag, using  select tagName from table to get tagValue
     for (int i = 0 ; i < count; i++) {
-        if (strcmp(tableDes->cols[i].note, "TAG") != 0) continue;
+        if (strcmp(stableDes->cols[i].note, "TAG") != 0) continue;
 
 
         sprintf(sqlstr, "select %s from %s.%s",
-                tableDes->cols[i].field, dbName, table);
+                stableDes->cols[i].field, dbName, table);
 
         res = taos_query(taosCon, sqlstr);
         code = taos_errno(res);
@@ -1310,7 +1310,7 @@ static int taosGetTableDes(
         }
 
         if (row[0] == NULL) {
-            sprintf(tableDes->cols[i].note, "%s", "NULL");
+            sprintf(stableDes->cols[i].note, "%s", "NULL");
             taos_free_result(res);
             res = NULL;
             continue;
@@ -1321,47 +1321,47 @@ static int taosGetTableDes(
         //int32_t* length = taos_fetch_lengths(tmpResult);
         switch (fields[0].type) {
             case TSDB_DATA_TYPE_BOOL:
-                sprintf(tableDes->cols[i].note, "%d",
+                sprintf(stableDes->cols[i].note, "%d",
                         ((((int32_t)(*((char *)row[0]))) == 1) ? 1 : 0));
                 break;
             case TSDB_DATA_TYPE_TINYINT:
-                sprintf(tableDes->cols[i].note, "%d", *((int8_t *)row[0]));
+                sprintf(stableDes->cols[i].note, "%d", *((int8_t *)row[0]));
                 break;
             case TSDB_DATA_TYPE_SMALLINT:
-                sprintf(tableDes->cols[i].note, "%d", *((int16_t *)row[0]));
+                sprintf(stableDes->cols[i].note, "%d", *((int16_t *)row[0]));
                 break;
             case TSDB_DATA_TYPE_INT:
-                sprintf(tableDes->cols[i].note, "%d", *((int32_t *)row[0]));
+                sprintf(stableDes->cols[i].note, "%d", *((int32_t *)row[0]));
                 break;
             case TSDB_DATA_TYPE_BIGINT:
-                sprintf(tableDes->cols[i].note, "%" PRId64 "", *((int64_t *)row[0]));
+                sprintf(stableDes->cols[i].note, "%" PRId64 "", *((int64_t *)row[0]));
                 break;
             case TSDB_DATA_TYPE_FLOAT:
-                sprintf(tableDes->cols[i].note, "%f", GET_FLOAT_VAL(row[0]));
+                sprintf(stableDes->cols[i].note, "%f", GET_FLOAT_VAL(row[0]));
                 break;
             case TSDB_DATA_TYPE_DOUBLE:
-                sprintf(tableDes->cols[i].note, "%f", GET_DOUBLE_VAL(row[0]));
+                sprintf(stableDes->cols[i].note, "%f", GET_DOUBLE_VAL(row[0]));
                 break;
             case TSDB_DATA_TYPE_BINARY:
                 {
-                    memset(tableDes->cols[i].note, 0, sizeof(tableDes->cols[i].note));
-                    tableDes->cols[i].note[0] = '\'';
+                    memset(stableDes->cols[i].note, 0, sizeof(stableDes->cols[i].note));
+                    stableDes->cols[i].note[0] = '\'';
                     char tbuf[COL_NOTE_LEN];
                     converStringToReadable((char *)row[0], length[0], tbuf, COL_NOTE_LEN);
-                    char* pstr = stpcpy(&(tableDes->cols[i].note[1]), tbuf);
+                    char* pstr = stpcpy(&(stableDes->cols[i].note[1]), tbuf);
                     *(pstr++) = '\'';
                     break;
                 }
             case TSDB_DATA_TYPE_NCHAR:
                 {
-                    memset(tableDes->cols[i].note, 0, sizeof(tableDes->cols[i].note));
+                    memset(stableDes->cols[i].note, 0, sizeof(stableDes->cols[i].note));
                     char tbuf[COL_NOTE_LEN-2];    // need reserve 2 bytes for ' '
                     convertNCharToReadable((char *)row[0], length[0], tbuf, COL_NOTE_LEN);
-                    sprintf(tableDes->cols[i].note, "\'%s\'", tbuf);
+                    sprintf(stableDes->cols[i].note, "\'%s\'", tbuf);
                     break;
                 }
             case TSDB_DATA_TYPE_TIMESTAMP:
-                sprintf(tableDes->cols[i].note, "%" PRId64 "", *(int64_t *)row[0]);
+                sprintf(stableDes->cols[i].note, "%" PRId64 "", *(int64_t *)row[0]);
 #if 0
                 if (!g_args.mysqlFlag) {
                     sprintf(tableDes->cols[i].note, "%" PRId64 "", *(int64_t *)row[0]);
@@ -1386,7 +1386,7 @@ static int taosGetTableDes(
     return count;
 }
 
-static int convertSchemaToAvroSchema(STableDef *tableDes, char **avroSchema)
+static int convertSchemaToAvroSchema(STableDef *stableDes, char **avroSchema)
 {
     errorPrint("%s() LN%d TODO: covert table schema to avro schema\n",
             __func__, __LINE__);
@@ -1394,7 +1394,7 @@ static int convertSchemaToAvroSchema(STableDef *tableDes, char **avroSchema)
 }
 
 static int32_t taosDumpTable(
-        char *table, char *metric,
+        char *tbName, char *metric,
         FILE *fp, TAOS* taosCon, char* dbName) {
     int count = 0;
 
@@ -1415,7 +1415,7 @@ static int32_t taosDumpTable(
            memset(tableDes, 0, sizeof(STableDef) + sizeof(SColDes) * TSDB_MAX_COLUMNS);
            */
 
-        count = taosGetTableDes(dbName, table, tableDes, taosCon, false);
+        count = taosGetTableDes(dbName, tbName, tableDes, taosCon, false);
 
         if (count < 0) {
             free(tableDes);
@@ -1426,7 +1426,7 @@ static int32_t taosDumpTable(
         taosDumpCreateMTableClause(tableDes, metric, count, fp, dbName);
 
     } else {  // dump table definition
-        count = taosGetTableDes(dbName, table, tableDes, taosCon, false);
+        count = taosGetTableDes(dbName, tbName, tableDes, taosCon, false);
 
         if (count < 0) {
             free(tableDes);
@@ -1446,7 +1446,7 @@ static int32_t taosDumpTable(
 
     int32_t ret = 0;
     if (!g_args.schemaonly) {
-        ret = taosDumpTableData(fp, table, taosCon, dbName,
+        ret = taosDumpTableData(fp, tbName, taosCon, dbName,
             jsonAvroSchema);
     }
 
@@ -1648,26 +1648,27 @@ static void taosStartDumpOutWorkThreads(int32_t  numOfThread, char *dbName)
 static int32_t taosDumpStable(char *table, FILE *fp,
         TAOS* taosCon, char* dbName) {
 
-    uint64_t sizeOfTableDes = (uint64_t)(sizeof(STableDef) + sizeof(SColDes) * TSDB_MAX_COLUMNS);
-    STableDef *tableDes = (STableDef *)calloc(1, sizeOfTableDes);
-    if (NULL == tableDes) {
+    uint64_t sizeOfTableDes =
+        (uint64_t)(sizeof(STableDef) + sizeof(SColDes) * TSDB_MAX_COLUMNS);
+    STableDef *stableDes = (STableDef *)calloc(1, sizeOfTableDes);
+    if (NULL == stableDes) {
         errorPrint("%s() LN%d, failed to allocate %"PRIu64" memory\n",
                 __func__, __LINE__, sizeOfTableDes);
         exit(-1);
     }
 
-    int count = taosGetTableDes(dbName, table, tableDes, taosCon, true);
+    int count = taosGetTableDes(dbName, table, stableDes, taosCon, true);
 
     if (count < 0) {
-        free(tableDes);
+        free(stableDes);
         errorPrint("%s() LN%d, failed to get stable[%s] schema\n",
                __func__, __LINE__, table);
         exit(-1);
     }
 
-    taosDumpCreateTableClause(tableDes, count, fp, dbName);
+    taosDumpCreateTableClause(stableDes, count, fp, dbName);
 
-    free(tableDes);
+    free(stableDes);
     return 0;
 }
 
@@ -1707,7 +1708,7 @@ static int32_t taosDumpCreateSuperTableClause(TAOS* taosCon, char* dbName, FILE
         memset(&tableRecord, 0, sizeof(STableRecord));
         tstrncpy(tableRecord.name, (char *)row[TSDB_SHOW_TABLES_NAME_INDEX],
                 min(TSDB_TABLE_NAME_LEN,
-                    fields[TSDB_SHOW_TABLES_NAME_INDEX].bytes) + 1);
+                    fields[TSDB_SHOW_TABLES_NAME_INDEX].bytes + 1));
         taosWrite(fd, &tableRecord, sizeof(STableRecord));
     }
 
@@ -1782,10 +1783,10 @@ static int taosDumpDb(SDbInfo *dbInfo, FILE *fp, TAOS *taosCon) {
         memset(&tableRecord, 0, sizeof(STableRecord));
         tstrncpy(tableRecord.name, (char *)row[TSDB_SHOW_TABLES_NAME_INDEX],
                 min(TSDB_TABLE_NAME_LEN,
-                    fields[TSDB_SHOW_TABLES_NAME_INDEX].bytes) + 1);
+                    fields[TSDB_SHOW_TABLES_NAME_INDEX].bytes + 1));
         tstrncpy(tableRecord.metric, (char *)row[TSDB_SHOW_TABLES_METRIC_INDEX],
                 min(TSDB_TABLE_NAME_LEN,
-                    fields[TSDB_SHOW_TABLES_METRIC_INDEX].bytes) + 1);
+                    fields[TSDB_SHOW_TABLES_METRIC_INDEX].bytes + 1));
 
         taosWrite(fd, &tableRecord, sizeof(STableRecord));
 
@@ -1865,52 +1866,52 @@ static int taosDumpDb(SDbInfo *dbInfo, FILE *fp, TAOS *taosCon) {
 
 static void taosDumpCreateTableClause(STableDef *tableDes, int numOfCols,
         FILE *fp, char* dbName) {
-  int counter = 0;
-  int count_temp = 0;
-  char sqlstr[COMMAND_SIZE];
+    int counter = 0;
+    int count_temp = 0;
+    char sqlstr[COMMAND_SIZE];
 
-  char* pstr = sqlstr;
+    char* pstr = sqlstr;
 
-  pstr += sprintf(sqlstr, "CREATE TABLE IF NOT EXISTS %s.%s",
-          dbName, tableDes->name);
+    pstr += sprintf(sqlstr, "CREATE TABLE IF NOT EXISTS %s.%s",
+            dbName, tableDes->name);
 
-  for (; counter < numOfCols; counter++) {
-    if (tableDes->cols[counter].note[0] != '\0') break;
+    for (; counter < numOfCols; counter++) {
+        if (tableDes->cols[counter].note[0] != '\0') break;
 
-    if (counter == 0) {
-      pstr += sprintf(pstr, " (%s %s",
-              tableDes->cols[counter].field, tableDes->cols[counter].type);
-    } else {
-      pstr += sprintf(pstr, ", %s %s",
-              tableDes->cols[counter].field, tableDes->cols[counter].type);
-    }
+        if (counter == 0) {
+            pstr += sprintf(pstr, " (%s %s",
+                    tableDes->cols[counter].field, tableDes->cols[counter].type);
+        } else {
+            pstr += sprintf(pstr, ", %s %s",
+                    tableDes->cols[counter].field, tableDes->cols[counter].type);
+        }
 
-    if (strcasecmp(tableDes->cols[counter].type, "binary") == 0 ||
-        strcasecmp(tableDes->cols[counter].type, "nchar") == 0) {
-      pstr += sprintf(pstr, "(%d)", tableDes->cols[counter].length);
+        if (strcasecmp(tableDes->cols[counter].type, "binary") == 0 ||
+                strcasecmp(tableDes->cols[counter].type, "nchar") == 0) {
+            pstr += sprintf(pstr, "(%d)", tableDes->cols[counter].length);
+        }
     }
-  }
 
-  count_temp = counter;
+    count_temp = counter;
 
-  for (; counter < numOfCols; counter++) {
-    if (counter == count_temp) {
-      pstr += sprintf(pstr, ") TAGS (%s %s",
-              tableDes->cols[counter].field, tableDes->cols[counter].type);
-    } else {
-      pstr += sprintf(pstr, ", %s %s",
-              tableDes->cols[counter].field, tableDes->cols[counter].type);
-    }
+    for (; counter < numOfCols; counter++) {
+        if (counter == count_temp) {
+            pstr += sprintf(pstr, ") TAGS (%s %s",
+                    tableDes->cols[counter].field, tableDes->cols[counter].type);
+        } else {
+            pstr += sprintf(pstr, ", %s %s",
+                    tableDes->cols[counter].field, tableDes->cols[counter].type);
+        }
 
-    if (strcasecmp(tableDes->cols[counter].type, "binary") == 0 ||
-        strcasecmp(tableDes->cols[counter].type, "nchar") == 0) {
-      pstr += sprintf(pstr, "(%d)", tableDes->cols[counter].length);
+        if (strcasecmp(tableDes->cols[counter].type, "binary") == 0 ||
+                strcasecmp(tableDes->cols[counter].type, "nchar") == 0) {
+            pstr += sprintf(pstr, "(%d)", tableDes->cols[counter].length);
+        }
     }
-  }
 
-  pstr += sprintf(pstr, ");");
+    pstr += sprintf(pstr, ");");
 
-  fprintf(fp, "%s\n\n", sqlstr);
+    fprintf(fp, "%s\n\n", sqlstr);
 }
 
 static void taosDumpCreateMTableClause(STableDef *tableDes, char *metric,
diff --git a/tests/pytest/fulltest.sh b/tests/pytest/fulltest.sh
index b86e96d0bb40c43c7f39da9b372389caa4969c4e..9a0212d652425171b2ff63652ae0717ab34de236 100755
--- a/tests/pytest/fulltest.sh
+++ b/tests/pytest/fulltest.sh
@@ -148,6 +148,9 @@ python3 ./test.py -f import_merge/importTPORestart.py
 python3 ./test.py -f import_merge/importTRestart.py
 python3 ./test.py -f import_merge/importInsertThenImport.py
 python3 ./test.py -f import_merge/importCSV.py
+python3 ./test.py -f import_merge/import_update_0.py
+python3 ./test.py -f import_merge/import_update_1.py
+python3 ./test.py -f import_merge/import_update_2.py
 #======================p1-end===============
 #======================p2-start===============
 # tools
@@ -376,6 +379,7 @@ python3 test.py -f alter/alter_cacheLastRow.py
 python3 ./test.py -f query/querySession.py 
 python3 test.py -f  alter/alter_create_exception.py
 python3 ./test.py -f insert/flushwhiledrop.py
+python3 ./test.py -f insert/schemalessInsert.py
 
 #======================p4-end===============
 python3 test.py -f  tools/taosdemoAllTest/pytest.py
diff --git a/tests/pytest/import_merge/import_update_0.py b/tests/pytest/import_merge/import_update_0.py
new file mode 100644
index 0000000000000000000000000000000000000000..6466deb3704223178c4786bbdaa64d493455fed8
--- /dev/null
+++ b/tests/pytest/import_merge/import_update_0.py
@@ -0,0 +1,1913 @@
+###################################################################
+#           Copyright (c) 2016 by TAOS Technologies, Inc.
+#                     All rights reserved.
+#
+#  This file is proprietary and confidential to TAOS Technologies.
+#  No part of this file may be reproduced, stored, transmitted,
+#  disclosed or used in any form or by any means other than as
+#  expressly provided by the written permission from Jianhui Tao
+#
+###################################################################
+
+# -*- coding: utf-8 -*-
+
+import sys
+import taos
+from util.log import tdLog
+from util.cases import tdCases
+from util.sql import tdSql
+from util.dnodes import *
+import random
+import time
+
+
+class TDTestCase:
+    def init(self, conn, logSql):
+        tdLog.debug("start to execute %s" % __file__)
+        tdSql.init(conn.cursor(), logSql)
+
+        self.ts = 1600000000000
+        self.num = 50
+        self.num4096 = 5
+
+    def getBuildPath(self):
+        selfPath = os.path.dirname(os.path.realpath(__file__))
+
+        if ("community" in selfPath):
+            projPath = selfPath[:selfPath.find("community")]
+        else:
+            projPath = selfPath[:selfPath.find("tests")]
+
+        for root, dirs, files in os.walk(projPath):
+            if ("taosd" in files):
+                rootRealPath = os.path.dirname(os.path.realpath(root))
+                if ("packaging" not in rootRealPath):
+                    buildPath = root[:len(root)-len("/build/bin")]
+                    break
+        return buildPath
+
+    def run(self):
+        tdSql.prepare()   
+        # test case for https://jira.taosdata.com:18080/browse/TD-5062
+             
+        startTime = time.time() 
+
+        tdSql.execute('''drop database if exists test_updata_0 ;''')  
+        # update 0 不更新 ; update 1 覆盖更新 ;update 2 合并更新
+        tdLog.info("========== test database updata = 0 ==========") 
+        tdSql.execute('''create database test_updata_0 update 0 minrows 10 maxrows 200 ;''')   
+        tdSql.execute('''use test_updata_0;''')   
+        tdSql.execute('''create stable stable_1
+                    (ts timestamp , q_int int , q_bigint bigint , q_smallint smallint , q_tinyint tinyint, 
+                    q_bool bool , q_binary binary(10) , q_nchar nchar(10) , q_float float , q_double double , q_ts timestamp) 
+                    tags(loc nchar(20) , t_int int);''')
+        tdSql.execute('''create table table_1 using stable_1 tags('table_1' , '1' )''')
+        tdSql.execute('''create table table_2 using stable_1 tags('table_2' , '2' )''')
+        tdSql.execute('''create table table_3 using stable_1 tags('table_3' , '3' )''')
+
+        #regular table
+        tdSql.execute('''create table regular_table_1
+                    (ts timestamp , q_int int , q_bigint bigint , q_smallint smallint , q_tinyint tinyint, 
+                    q_bool bool , q_binary binary(10) , q_nchar nchar(10) , q_float float , q_double double , q_ts timestamp) ;''')
+        tdSql.execute('''create table regular_table_2
+                    (ts timestamp , q_int int , q_bigint bigint , q_smallint smallint , q_tinyint tinyint, 
+                    q_bool bool , q_binary binary(10) , q_nchar nchar(10) , q_float float , q_double double , q_ts timestamp) ;''')
+        tdSql.execute('''create table regular_table_3
+                    (ts timestamp , q_int int , q_bigint bigint , q_smallint smallint , q_tinyint tinyint, 
+                    q_bool bool , q_binary binary(10) , q_nchar nchar(10) , q_float float , q_double double , q_ts timestamp) ;''')
+               
+
+        tdLog.info("========== test1.1 : insert data , check data==========")   
+        tdLog.info("========== regular_table ==========") 
+        tdSql.execute('''insert into regular_table_1 values( %d , 0, 0, 0, 0, 0, 'binary-0', 'nchar-0', 0.000000, 0.000000, 1600000000000);''' %(self.ts - 200))
+        sql = '''select * from regular_table_1 where ts = %d ;''' %(self.ts - 200)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,0)   
+        tdSql.checkData(0,2,0)   
+        tdSql.checkData(0,3,0)   
+        tdSql.checkData(0,4,0)   
+        tdSql.checkData(0,5,'False')   
+        tdSql.checkData(0,6,'binary-0')   
+        tdSql.checkData(0,7,'nchar-0')
+        tdSql.checkData(0,8,0)   
+        tdSql.checkData(0,9,0)   
+        tdSql.checkData(0,10,'2020-09-13 20:26:40.000') 
+
+        tdSql.execute('''insert into regular_table_1 values( %d , NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL);''' %(self.ts + 200))
+        sql = '''select * from regular_table_1 where ts = %d ;''' %(self.ts + 200)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,2,None)   
+        tdSql.checkData(0,3,None)   
+        tdSql.checkData(0,4,None)   
+        tdSql.checkData(0,5,None)   
+        tdSql.checkData(0,6,None)   
+        tdSql.checkData(0,7,None)
+        tdSql.checkData(0,8,None)   
+        tdSql.checkData(0,9,None)   
+        tdSql.checkData(0,10,None) 
+
+        tdSql.execute('''insert into regular_table_1 values( %d , NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL);''' %(self.ts - 500))
+        sql = '''select * from regular_table_1 where ts = %d ;''' %(self.ts - 500)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,2,None)   
+        tdSql.checkData(0,3,None)   
+        tdSql.checkData(0,4,None)   
+        tdSql.checkData(0,5,None)   
+        tdSql.checkData(0,6,None)   
+        tdSql.checkData(0,7,None)
+        tdSql.checkData(0,8,None)   
+        tdSql.checkData(0,9,None)   
+        tdSql.checkData(0,10,None) 
+
+        tdSql.execute('''insert into regular_table_1 values( %d , NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL);''' %(self.ts + 500))
+        sql = '''select * from regular_table_1 where ts = %d ;''' %(self.ts + 500)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,2,None)   
+        tdSql.checkData(0,3,None)   
+        tdSql.checkData(0,4,None)   
+        tdSql.checkData(0,5,None)   
+        tdSql.checkData(0,6,None)   
+        tdSql.checkData(0,7,None)
+        tdSql.checkData(0,8,None)   
+        tdSql.checkData(0,9,None)   
+        tdSql.checkData(0,10,None) 
+
+        tdLog.info("========== stable ==========") 
+        tdSql.execute('''insert into table_1 values( %d , 0, 0, 0, 0, 0, 'binary-0', 'nchar-0', 0.000000, 0.000000, 1600000000000);''' %(self.ts - 200))
+        sql = '''select * from table_1 where ts = %d ;''' %(self.ts - 200)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,0)   
+        tdSql.checkData(0,2,0)   
+        tdSql.checkData(0,3,0)   
+        tdSql.checkData(0,4,0)   
+        tdSql.checkData(0,5,'False')   
+        tdSql.checkData(0,6,'binary-0')   
+        tdSql.checkData(0,7,'nchar-0')
+        tdSql.checkData(0,8,0)   
+        tdSql.checkData(0,9,0)   
+        tdSql.checkData(0,10,'2020-09-13 20:26:40.000') 
+        sql = '''select * from stable_1 where ts = %d ;''' %(self.ts - 200)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,0)   
+        tdSql.checkData(0,2,0)   
+        tdSql.checkData(0,3,0)   
+        tdSql.checkData(0,4,0)   
+        tdSql.checkData(0,5,'False')   
+        tdSql.checkData(0,6,'binary-0')   
+        tdSql.checkData(0,7,'nchar-0')
+        tdSql.checkData(0,8,0)   
+        tdSql.checkData(0,9,0)   
+        tdSql.checkData(0,10,'2020-09-13 20:26:40.000') 
+
+        tdSql.execute('''insert into table_1 values( %d , NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL);''' %(self.ts + 200))
+        sql = '''select * from table_1 where ts = %d ;''' %(self.ts + 200)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,2,None)   
+        tdSql.checkData(0,3,None)   
+        tdSql.checkData(0,4,None)   
+        tdSql.checkData(0,5,None)   
+        tdSql.checkData(0,6,None)   
+        tdSql.checkData(0,7,None)
+        tdSql.checkData(0,8,None)   
+        tdSql.checkData(0,9,None)   
+        tdSql.checkData(0,10,None) 
+        sql = '''select * from stable_1 where ts = %d ;''' %(self.ts + 200)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,2,None)   
+        tdSql.checkData(0,3,None)   
+        tdSql.checkData(0,4,None)   
+        tdSql.checkData(0,5,None)   
+        tdSql.checkData(0,6,None)   
+        tdSql.checkData(0,7,None)
+        tdSql.checkData(0,8,None)   
+        tdSql.checkData(0,9,None)   
+        tdSql.checkData(0,10,None)
+
+        tdSql.execute('''insert into table_1 values( %d , NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL);''' %(self.ts - 500))
+        sql = '''select * from table_1 where ts = %d ;''' %(self.ts - 500)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,2,None)   
+        tdSql.checkData(0,3,None)   
+        tdSql.checkData(0,4,None)   
+        tdSql.checkData(0,5,None)   
+        tdSql.checkData(0,6,None)   
+        tdSql.checkData(0,7,None)
+        tdSql.checkData(0,8,None)   
+        tdSql.checkData(0,9,None)   
+        tdSql.checkData(0,10,None) 
+        sql = '''select * from stable_1 where ts = %d ;''' %(self.ts - 500)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,2,None)   
+        tdSql.checkData(0,3,None)   
+        tdSql.checkData(0,4,None)   
+        tdSql.checkData(0,5,None)   
+        tdSql.checkData(0,6,None)   
+        tdSql.checkData(0,7,None)
+        tdSql.checkData(0,8,None)   
+        tdSql.checkData(0,9,None)   
+        tdSql.checkData(0,10,None) 
+
+        tdSql.execute('''insert into table_1 values( %d , NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL);''' %(self.ts + 500))
+        sql = '''select * from table_1 where ts = %d ;''' %(self.ts + 500)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,2,None)   
+        tdSql.checkData(0,3,None)   
+        tdSql.checkData(0,4,None)   
+        tdSql.checkData(0,5,None)   
+        tdSql.checkData(0,6,None)   
+        tdSql.checkData(0,7,None)
+        tdSql.checkData(0,8,None)   
+        tdSql.checkData(0,9,None)   
+        tdSql.checkData(0,10,None) 
+        sql = '''select * from stable_1 where ts = %d ;''' %(self.ts + 500)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,2,None)   
+        tdSql.checkData(0,3,None)   
+        tdSql.checkData(0,4,None)   
+        tdSql.checkData(0,5,None)   
+        tdSql.checkData(0,6,None)   
+        tdSql.checkData(0,7,None)
+        tdSql.checkData(0,8,None)   
+        tdSql.checkData(0,9,None)   
+        tdSql.checkData(0,10,None) 
+
+
+        tdLog.info("========== 4096 regular_table ==========") 
+        sql = "create table regular_table_4096_1 (ts timestamp, "
+        for i in range(500):
+            sql += "int_%d int, " % (i + 1)
+        for i in range(500,1000):
+            sql += "smallint_%d smallint, " % (i + 1)
+        for i in range(1000,1500):
+            sql += "tinyint_%d tinyint, " % (i + 1)
+        for i in range(1500,2000):
+            sql += "double_%d double, " % (i + 1)
+        for i in range(2000,2500):
+            sql += "float_%d float, " % (i + 1)
+        for i in range(2500,3000):
+            sql += "bool_%d bool, " % (i + 1)
+        for i in range(3000,3500):
+            sql += "bigint_%d bigint, " % (i + 1)
+        for i in range(3500,3800):
+            sql += "nchar_%d nchar(4), " % (i + 1)
+        for i in range(3800,4090):
+            sql += "binary_%d binary(10), " % (i + 1)
+        for i in range(4090,4094):
+            sql += "timestamp_%d timestamp, " % (i + 1)
+        sql += "col4095 binary(22))"  
+        tdLog.info(len(sql))      
+        tdSql.execute(sql)
+
+        for i in range(self.num4096):
+            sql = "insert into regular_table_4096_1 values(%d, "
+            for j in range(4090): 
+                str = "'%s', " % 'NULL'             
+                sql += str
+            for j in range(4090,4094):
+                str = "%s, " % (self.ts + j)                
+                sql += str
+            sql += "'%s')" % (self.ts + i)
+            tdSql.execute(sql % (self.ts + i))
+        tdSql.query('''select * from regular_table_4096_1 where ts = %d ;''' %(self.ts))
+        tdSql.checkCols(4096)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,501,None)   
+        tdSql.checkData(0,1001,None)   
+        tdSql.checkData(0,1501,None)   
+        tdSql.checkData(0,2001,None)   
+        tdSql.checkData(0,2501,None)   
+        tdSql.checkData(0,3001,None)
+        tdSql.checkData(0,3501,'NULL')   
+        tdSql.checkData(0,3801,'NULL')   
+        tdSql.checkData(0,4091,'2020-09-13 20:26:44.090') 
+        tdSql.checkData(0,4095,'1600000000000') 
+
+        sql = '''insert into regular_table_4096_1 (ts , int_1,smallint_501 , tinyint_1001 , double_1501 , float_2001 , bool_2501 ,
+                bigint_3001 , nchar_3501 , binary_3801 , timestamp_4091 , col4095 )
+                values('2020-09-10 20:26:40.000' , 1 , 501 , 101 , 1501 , 2001 , 1 , 3001 , '3501' , '3801' ,'2020-09-10 20:26:44.090','1500000000000');'''
+        tdSql.execute(sql)
+        tdSql.query("select * from regular_table_4096_1 where ts ='2020-09-10 20:26:40.000';")
+        tdSql.checkCols(4096)
+        tdSql.checkData(0,1,1)   
+        tdSql.checkData(0,501,501)   
+        tdSql.checkData(0,1001,101)   
+        tdSql.checkData(0,1501,1501)   
+        tdSql.checkData(0,2001,2001)   
+        tdSql.checkData(0,2501,'True')   
+        tdSql.checkData(0,3001,3001)
+        tdSql.checkData(0,3501,'3501')   
+        tdSql.checkData(0,3801,'3801')   
+        tdSql.checkData(0,4091,'2020-09-10 20:26:44.090') 
+        tdSql.checkData(0,4095,'1500000000000') 
+
+        tdLog.info("========== 4096 stable ==========") 
+        sql = "create stable stable_4096_1 (ts timestamp, "
+        for i in range(500):
+            sql += "int_%d int, " % (i + 1)
+        for i in range(500,1000):
+            sql += "smallint_%d smallint, " % (i + 1)
+        for i in range(1000,1500):
+            sql += "tinyint_%d tinyint, " % (i + 1)
+        for i in range(1500,2000):
+            sql += "double_%d double, " % (i + 1)
+        for i in range(2000,2500):
+            sql += "float_%d float, " % (i + 1)
+        for i in range(2500,3000):
+            sql += "bool_%d bool, " % (i + 1)
+        for i in range(3000,3500):
+            sql += "bigint_%d bigint, " % (i + 1)
+        for i in range(3500,3800):
+            sql += "nchar_%d nchar(4), " % (i + 1)
+        for i in range(3800,4090):
+            sql += "binary_%d binary(10), " % (i + 1)
+        for i in range(4090,4092):
+            sql += "timestamp_%d timestamp, " % (i + 1)
+        sql += " col4093 binary(22)) "  
+        sql += " tags (loc nchar(20),tag_1 int) "
+        tdLog.info(len(sql))      
+        tdSql.execute(sql)
+
+        sql = " create table table_4096_1 using stable_4096_1 tags ('table_4096_1',1); "
+        tdSql.execute(sql)
+
+        for i in range(self.num4096):
+            sql = "insert into table_4096_1 values(%d, "
+            for j in range(4090): 
+                str = "'%s', " % 'NULL'             
+                sql += str
+            for j in range(4090,4092):
+                str = "%s, " % (self.ts + j)                
+                sql += str
+            sql += "'%s')" % (self.ts + i)
+            tdSql.execute(sql % (self.ts + i))
+        tdSql.query('''select * from table_4096_1 where ts = %d ;''' %(self.ts))
+        tdSql.checkCols(4094)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,501,None)   
+        tdSql.checkData(0,1001,None)   
+        tdSql.checkData(0,1501,None)   
+        tdSql.checkData(0,2001,None)   
+        tdSql.checkData(0,2501,None)   
+        tdSql.checkData(0,3001,None)
+        tdSql.checkData(0,3501,'NULL')   
+        tdSql.checkData(0,3801,'NULL')   
+        tdSql.checkData(0,4091,'2020-09-13 20:26:44.090') 
+        tdSql.checkData(0,4093,'1600000000000')
+        tdSql.query('''select * from stable_4096_1 where ts = %d ;''' %(self.ts))
+        tdSql.checkCols(4096)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,501,None)   
+        tdSql.checkData(0,1001,None)   
+        tdSql.checkData(0,1501,None)   
+        tdSql.checkData(0,2001,None)   
+        tdSql.checkData(0,2501,None)   
+        tdSql.checkData(0,3001,None)
+        tdSql.checkData(0,3501,'NULL')   
+        tdSql.checkData(0,3801,'NULL')   
+        tdSql.checkData(0,4091,'2020-09-13 20:26:44.090') 
+        tdSql.checkData(0,4093,'1600000000000')
+
+        sql = '''insert into table_4096_1 (ts , int_1,smallint_501 , tinyint_1001 , double_1501 , float_2001 , bool_2501 ,
+                bigint_3001 , nchar_3501 , binary_3801 , timestamp_4091 , col4093 )
+                values('2020-09-10 20:26:40.000' , 1 , 501 , 101 , 1501 , 2001 , 1 , 3001 , '3501' , '3801' ,'2020-09-10 20:26:44.090','1500000000000');'''
+        tdSql.execute(sql)
+        tdSql.query("select * from table_4096_1 where ts ='2020-09-10 20:26:40.000';")
+        tdSql.checkCols(4094)
+        tdSql.checkData(0,1,1)   
+        tdSql.checkData(0,501,501)   
+        tdSql.checkData(0,1001,101)   
+        tdSql.checkData(0,1501,1501)   
+        tdSql.checkData(0,2001,2001)   
+        tdSql.checkData(0,2501,'True')   
+        tdSql.checkData(0,3001,3001)
+        tdSql.checkData(0,3501,'3501')   
+        tdSql.checkData(0,3801,'3801')   
+        tdSql.checkData(0,4091,'2020-09-10 20:26:44.090') 
+        tdSql.checkData(0,4093,'1500000000000') 
+        tdSql.query("select * from stable_4096_1 where ts ='2020-09-10 20:26:40.000';")
+        tdSql.checkCols(4096)
+        tdSql.checkData(0,1,1)   
+        tdSql.checkData(0,501,501)   
+        tdSql.checkData(0,1001,101)   
+        tdSql.checkData(0,1501,1501)   
+        tdSql.checkData(0,2001,2001)   
+        tdSql.checkData(0,2501,'True')   
+        tdSql.checkData(0,3001,3001)
+        tdSql.checkData(0,3501,'3501')   
+        tdSql.checkData(0,3801,'3801')   
+        tdSql.checkData(0,4091,'2020-09-10 20:26:44.090') 
+        tdSql.checkData(0,4093,'1500000000000') 
+
+        # minrows 10 maxrows 200
+        for i in range(self.num):        
+            tdSql.execute('''insert into regular_table_1 values(%d, %d, %d, %d, %d, 0, 'binary.%s', 'nchar.%s', %f, %f, %d)''' 
+                        % (self.ts -100 + i, i, i, i, i, i, i, i, i, self.ts -100 + i))
+            tdSql.execute('''insert into regular_table_1 values(%d, %d, %d, %d, %d, false, 'binary%s', 'nchar%s', %f, %f, %d)''' 
+                        % (self.ts + i, random.randint(-2147483647, 2147483647), 
+                        random.randint(-9223372036854775807, 9223372036854775807), random.randint(-32767, 32767),
+                        random.randint(-127, 127), random.randint(-100, 100), random.randint(-10000, 10000), 
+                        random.uniform(-100000,100000), random.uniform(-1000000000,1000000000), self.ts + i))
+
+            tdSql.execute('''insert into table_1 values(%d, %d, %d, %d, %d, 0, 'binary.%s', 'nchar.%s', %f, %f, %d)''' 
+                        % (self.ts -100 + i, i, i, i, i, i, i, i, i, self.ts -100 + i))
+            tdSql.execute('''insert into table_1 values(%d, %d, %d, %d, %d, false, 'binary%s', 'nchar%s', %f, %f, %d)''' 
+                        % (self.ts + i, random.randint(-2147483647, 2147483647), 
+                        random.randint(-9223372036854775807, 9223372036854775807), random.randint(-32767, 32767),
+                        random.randint(-127, 127), random.randint(-100, 100), random.randint(-10000, 10000), 
+                        random.uniform(-100000,100000), random.uniform(-1000000000,1000000000), self.ts + i))
+
+        tdLog.info("========== regular_table ==========") 
+        tdSql.execute('''insert into regular_table_1 values( %d , NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL);''' %(self.ts - 200))
+        sql = '''select * from regular_table_1 where ts = %d ;''' %(self.ts - 200)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,0)   
+        tdSql.checkData(0,2,0)   
+        tdSql.checkData(0,3,0)   
+        tdSql.checkData(0,4,0)   
+        tdSql.checkData(0,5,'False')   
+        tdSql.checkData(0,6,'binary-0')   
+        tdSql.checkData(0,7,'nchar-0')
+        tdSql.checkData(0,8,0)   
+        tdSql.checkData(0,9,0)   
+        tdSql.checkData(0,10,'2020-09-13 20:26:40.000') 
+
+        tdSql.execute('''insert into regular_table_1 values( %d , 0, 0, 0, 0, 0, 'binary+0', 'nchar+0', 0.000000, 0.000000, 1600000000000);''' %(self.ts + 200))
+        sql = '''select * from regular_table_1 where ts = %d ;''' %(self.ts + 200)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,2,None)   
+        tdSql.checkData(0,3,None)   
+        tdSql.checkData(0,4,None)   
+        tdSql.checkData(0,5,None)   
+        tdSql.checkData(0,6,None)   
+        tdSql.checkData(0,7,None)
+        tdSql.checkData(0,8,None)   
+        tdSql.checkData(0,9,None)   
+        tdSql.checkData(0,10,None) 
+
+        tdSql.error('''insert into regular_table_1 values( %d , -2147483648, -9223372036854775807, -32767, -127, 0, 'binary-0', 'nchar-0', 0.000000, 0.000000, 1600000000000);''' %(self.ts - 500))
+        tdSql.error('''insert into regular_table_1 values( %d , -2147483647, -9223372036854775808, -32767, -127, 0, 'binary-0', 'nchar-0', 0.000000, 0.000000, 1600000000000);''' %(self.ts - 500))
+        tdSql.error('''insert into regular_table_1 values( %d , -2147483647, -9223372036854775807, -32768, -127, 0, 'binary-0', 'nchar-0', 0.000000, 0.000000, 1600000000000);''' %(self.ts - 500))
+        tdSql.error('''insert into regular_table_1 values( %d , -2147483647, -9223372036854775807, -32767, -128, 0, 'binary-0', 'nchar-0', 0.000000, 0.000000, 1600000000000);''' %(self.ts - 500))
+        tdSql.error('''insert into regular_table_1 values( %d , -2147483647, -9223372036854775807, -32767, -127, 0, 'binary-0123', 'nchar-0', 0.000000, 0.000000, 1600000000000);''' %(self.ts - 500))
+        tdSql.error('''insert into regular_table_1 values( %d , -2147483647, -9223372036854775807, -32767, -127, 0, 'binary-0', 'nchar-01234', 0.000000, 0.000000, 1600000000000);''' %(self.ts - 500))
+        
+        tdSql.execute('''insert into regular_table_1 values( %d , -2147483647, -9223372036854775807, -32767, -127, 0, 'binary-012', 'nchar-0123', 0.000000, 0.000000, 1600000000000);''' %(self.ts - 500))
+        sql = '''select * from regular_table_1 where ts = %d ;''' %(self.ts - 500)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,2,None)   
+        tdSql.checkData(0,3,None)   
+        tdSql.checkData(0,4,None)   
+        tdSql.checkData(0,5,None)   
+        tdSql.checkData(0,6,None)   
+        tdSql.checkData(0,7,None)
+        tdSql.checkData(0,8,None)   
+        tdSql.checkData(0,9,None)   
+        tdSql.checkData(0,10,None) 
+
+        tdSql.error('''insert into regular_table_1 values( %d , 2147483648, 9223372036854775807, 32767, 127, 0, 'binary+0', 'nchar+0', 0.000000, 0.000000, 1600000000000);''' %(self.ts + 500))
+        tdSql.error('''insert into regular_table_1 values( %d , 2147483647, 9223372036854775808, 32767, 127, 0, 'binary+0', 'nchar+0', 0.000000, 0.000000, 1600000000000);''' %(self.ts + 500))
+        tdSql.error('''insert into regular_table_1 values( %d , 2147483647, 9223372036854775807, 32768, 127, 0, 'binary+0', 'nchar+0', 0.000000, 0.000000, 1600000000000);''' %(self.ts + 500))
+        tdSql.error('''insert into regular_table_1 values( %d , 2147483647, 9223372036854775807, 32767, 128, 0, 'binary+0', 'nchar+0', 0.000000, 0.000000, 1600000000000);''' %(self.ts + 500))
+        tdSql.error('''insert into regular_table_1 values( %d , 2147483647, 9223372036854775807, 32767, 127, 0, 'binary+0123', 'nchar+0', 0.000000, 0.000000, 1600000000000);''' %(self.ts + 500))
+        tdSql.error('''insert into regular_table_1 values( %d , 2147483647, 9223372036854775807, 32767, 127, 0, 'binary+0', 'nchar+01234', 0.000000, 0.000000, 1600000000000);''' %(self.ts + 500))
+        
+        tdSql.execute('''insert into regular_table_1 values( %d , 2147483647, 9223372036854775807, 32767, 127, 0, 'binary+012', 'nchar+0123', 0.000000, 0.000000, 1600000000000);''' %(self.ts + 500))
+        sql = '''select * from regular_table_1 where ts = %d ;''' %(self.ts + 500)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,2,None)   
+        tdSql.checkData(0,3,None)   
+        tdSql.checkData(0,4,None)   
+        tdSql.checkData(0,5,None)   
+        tdSql.checkData(0,6,None)   
+        tdSql.checkData(0,7,None)
+        tdSql.checkData(0,8,None)   
+        tdSql.checkData(0,9,None)   
+        tdSql.checkData(0,10,None)  
+
+        tdLog.info("========== stable ==========") 
+        tdSql.execute('''insert into table_1 values( %d , NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL);''' %(self.ts - 200))
+        sql = '''select * from table_1 where ts = %d ;''' %(self.ts - 200)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,0)   
+        tdSql.checkData(0,2,0)   
+        tdSql.checkData(0,3,0)   
+        tdSql.checkData(0,4,0)   
+        tdSql.checkData(0,5,'False')   
+        tdSql.checkData(0,6,'binary-0')   
+        tdSql.checkData(0,7,'nchar-0')
+        tdSql.checkData(0,8,0)   
+        tdSql.checkData(0,9,0)   
+        tdSql.checkData(0,10,'2020-09-13 20:26:40.000') 
+        sql = '''select * from stable_1 where ts = %d ;''' %(self.ts - 200)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,0)   
+        tdSql.checkData(0,2,0)   
+        tdSql.checkData(0,3,0)   
+        tdSql.checkData(0,4,0)   
+        tdSql.checkData(0,5,'False')   
+        tdSql.checkData(0,6,'binary-0')   
+        tdSql.checkData(0,7,'nchar-0')
+        tdSql.checkData(0,8,0)   
+        tdSql.checkData(0,9,0)   
+        tdSql.checkData(0,10,'2020-09-13 20:26:40.000') 
+
+        tdSql.execute('''insert into table_1 values( %d , 0, 0, 0, 0, 0, 'binary+0', 'nchar+0', 0.000000, 0.000000, 1600000000000);''' %(self.ts + 200))
+        sql = '''select * from table_1 where ts = %d ;''' %(self.ts + 200)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,2,None)   
+        tdSql.checkData(0,3,None)   
+        tdSql.checkData(0,4,None)   
+        tdSql.checkData(0,5,None)   
+        tdSql.checkData(0,6,None)   
+        tdSql.checkData(0,7,None)
+        tdSql.checkData(0,8,None)   
+        tdSql.checkData(0,9,None)   
+        tdSql.checkData(0,10,None)
+        sql = '''select * from stable_1 where ts = %d ;''' %(self.ts + 200)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,2,None)   
+        tdSql.checkData(0,3,None)   
+        tdSql.checkData(0,4,None)   
+        tdSql.checkData(0,5,None)   
+        tdSql.checkData(0,6,None)   
+        tdSql.checkData(0,7,None)
+        tdSql.checkData(0,8,None)   
+        tdSql.checkData(0,9,None)   
+        tdSql.checkData(0,10,None)
+
+        tdSql.error('''insert into table_1 values( %d , -2147483648, -9223372036854775807, -32767, -127, 0, 'binary-0', 'nchar-0', 0.000000, 0.000000, 1600000000000);''' %(self.ts - 500))
+        tdSql.error('''insert into table_1 values( %d , -2147483647, -9223372036854775808, -32767, -127, 0, 'binary-0', 'nchar-0', 0.000000, 0.000000, 1600000000000);''' %(self.ts - 500))
+        tdSql.error('''insert into table_1 values( %d , -2147483647, -9223372036854775807, -32768, -127, 0, 'binary-0', 'nchar-0', 0.000000, 0.000000, 1600000000000);''' %(self.ts - 500))
+        tdSql.error('''insert into table_1 values( %d , -2147483647, -9223372036854775807, -32767, -128, 0, 'binary-0', 'nchar-0', 0.000000, 0.000000, 1600000000000);''' %(self.ts - 500))
+        tdSql.error('''insert into table_1 values( %d , -2147483647, -9223372036854775807, -32767, -127, 0, 'binary-0123', 'nchar-0', 0.000000, 0.000000, 1600000000000);''' %(self.ts - 500))
+        tdSql.error('''insert into table_1 values( %d , -2147483647, -9223372036854775807, -32767, -127, 0, 'binary-0', 'nchar-01234', 0.000000, 0.000000, 1600000000000);''' %(self.ts - 500))
+        
+        tdSql.execute('''insert into table_1 values( %d , -2147483647, -9223372036854775807, -32767, -127, 0, 'binary-012', 'nchar-0123', 0.000000, 0.000000, 1600000000000);''' %(self.ts - 500))
+        sql = '''select * from table_1 where ts = %d ;''' %(self.ts - 500)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,2,None)   
+        tdSql.checkData(0,3,None)   
+        tdSql.checkData(0,4,None)   
+        tdSql.checkData(0,5,None)   
+        tdSql.checkData(0,6,None)   
+        tdSql.checkData(0,7,None)
+        tdSql.checkData(0,8,None)   
+        tdSql.checkData(0,9,None)   
+        tdSql.checkData(0,10,None) 
+        sql = '''select * from stable_1 where ts = %d ;''' %(self.ts - 500)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,2,None)   
+        tdSql.checkData(0,3,None)   
+        tdSql.checkData(0,4,None)   
+        tdSql.checkData(0,5,None)   
+        tdSql.checkData(0,6,None)   
+        tdSql.checkData(0,7,None)
+        tdSql.checkData(0,8,None)   
+        tdSql.checkData(0,9,None)   
+        tdSql.checkData(0,10,None) 
+
+        tdSql.error('''insert into table_1 values( %d , 2147483648, 9223372036854775807, 32767, 127, 0, 'binary+0', 'nchar+0', 0.000000, 0.000000, 1600000000000);''' %(self.ts + 500))
+        tdSql.error('''insert into table_1 values( %d , 2147483647, 9223372036854775808, 32767, 127, 0, 'binary+0', 'nchar+0', 0.000000, 0.000000, 1600000000000);''' %(self.ts + 500))
+        tdSql.error('''insert into table_1 values( %d , 2147483647, 9223372036854775807, 32768, 127, 0, 'binary+0', 'nchar+0', 0.000000, 0.000000, 1600000000000);''' %(self.ts + 500))
+        tdSql.error('''insert into table_1 values( %d , 2147483647, 9223372036854775807, 32767, 128, 0, 'binary+0', 'nchar+0', 0.000000, 0.000000, 1600000000000);''' %(self.ts + 500))
+        tdSql.error('''insert into table_1 values( %d , 2147483647, 9223372036854775807, 32767, 127, 0, 'binary+0123', 'nchar+0', 0.000000, 0.000000, 1600000000000);''' %(self.ts + 500))
+        tdSql.error('''insert into table_1 values( %d , 2147483647, 9223372036854775807, 32767, 127, 0, 'binary+0', 'nchar+01234', 0.000000, 0.000000, 1600000000000);''' %(self.ts + 500))
+        
+        tdSql.execute('''insert into table_1 values( %d , 2147483647, 9223372036854775807, 32767, 127, 0, 'binary+012', 'nchar+0123', 0.000000, 0.000000, 1600000000000);''' %(self.ts + 500))
+        sql = '''select * from table_1 where ts = %d ;''' %(self.ts + 500)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,2,None)   
+        tdSql.checkData(0,3,None)   
+        tdSql.checkData(0,4,None)   
+        tdSql.checkData(0,5,None)   
+        tdSql.checkData(0,6,None)   
+        tdSql.checkData(0,7,None)
+        tdSql.checkData(0,8,None)   
+        tdSql.checkData(0,9,None)   
+        tdSql.checkData(0,10,None) 
+        sql = '''select * from stable_1 where ts = %d ;''' %(self.ts + 500)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,2,None)   
+        tdSql.checkData(0,3,None)   
+        tdSql.checkData(0,4,None)   
+        tdSql.checkData(0,5,None)   
+        tdSql.checkData(0,6,None)   
+        tdSql.checkData(0,7,None)
+        tdSql.checkData(0,8,None)   
+        tdSql.checkData(0,9,None)   
+        tdSql.checkData(0,10,None) 
+
+        tdLog.info("========== 4096 regular_table ==========") 
+        sql = '''insert into regular_table_4096_1 (ts , int_1,smallint_501 , tinyint_1001 , double_1501 , float_2001 , bool_2501 ,
+                bigint_3001 , nchar_3501 , binary_3801 , timestamp_4091 , col4095 )
+                values('2020-09-13 20:26:40.000' , 1 , 501 , 101 , 1501 , 2001 , 1 , 3001 , '3501' , '3801' ,'2020-09-13 20:26:44.090','1600000000000');'''
+        tdSql.execute(sql)
+        tdSql.query("select * from regular_table_4096_1 where ts ='2020-09-13 20:26:40.000';")
+        tdSql.checkCols(4096)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,501,None)   
+        tdSql.checkData(0,1001,None)   
+        tdSql.checkData(0,1501,None)   
+        tdSql.checkData(0,2001,None)   
+        tdSql.checkData(0,2501,None)   
+        tdSql.checkData(0,3001,None)
+        tdSql.checkData(0,3501,'NULL')   
+        tdSql.checkData(0,3801,'NULL')   
+        tdSql.checkData(0,4091,'2020-09-13 20:26:44.090') 
+        tdSql.checkData(0,4095,'1600000000000')
+
+        sql = '''insert into regular_table_4096_1 (ts , int_1,smallint_501 , tinyint_1001 , double_1501 , float_2001 , bool_2501 ,
+                bigint_3001 , nchar_3501 , binary_3801 , timestamp_4091 , col4095 )
+                values('2020-09-10 20:26:40.000' , NULL , NULL , NULL , NULL , NULL , NULL , NULL , NULL , NULL , NULL , NULL);'''
+        tdSql.execute(sql)
+        tdSql.query("select * from regular_table_4096_1 where ts ='2020-09-10 20:26:40.000';")
+        tdSql.checkCols(4096)
+        tdSql.checkData(0,1,1)   
+        tdSql.checkData(0,501,501)   
+        tdSql.checkData(0,1001,101)   
+        tdSql.checkData(0,1501,1501)   
+        tdSql.checkData(0,2001,2001)   
+        tdSql.checkData(0,2501,'True')   
+        tdSql.checkData(0,3001,3001)
+        tdSql.checkData(0,3501,'3501')   
+        tdSql.checkData(0,3801,'3801')   
+        tdSql.checkData(0,4091,'2020-09-10 20:26:44.090') 
+        tdSql.checkData(0,4095,'1500000000000') 
+
+        tdLog.info("========== 4096 stable ==========") 
+        sql = '''insert into table_4096_1 (ts , int_1,smallint_501 , tinyint_1001 , double_1501 , float_2001 , bool_2501 ,
+                bigint_3001 , nchar_3501 , binary_3801 , timestamp_4091 , col4093 )
+                values('2020-09-13 20:26:40.000' , 1 , 501 , 101 , 1501 , 2001 , 1 , 3001 , '3501' , '3801' ,'2020-09-13 20:26:44.090','1600000000000');'''
+        tdSql.execute(sql)
+        tdSql.query("select * from table_4096_1 where ts ='2020-09-13 20:26:40.000';")
+        tdSql.checkCols(4094)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,501,None)   
+        tdSql.checkData(0,1001,None)   
+        tdSql.checkData(0,1501,None)   
+        tdSql.checkData(0,2001,None)   
+        tdSql.checkData(0,2501,None)   
+        tdSql.checkData(0,3001,None)
+        tdSql.checkData(0,3501,'NULL')   
+        tdSql.checkData(0,3801,'NULL')   
+        tdSql.checkData(0,4091,'2020-09-13 20:26:44.090') 
+        tdSql.checkData(0,4093,'1600000000000')
+        tdSql.query("select * from stable_4096_1 where ts ='2020-09-13 20:26:40.000';")
+        tdSql.checkCols(4096)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,501,None)   
+        tdSql.checkData(0,1001,None)   
+        tdSql.checkData(0,1501,None)   
+        tdSql.checkData(0,2001,None)   
+        tdSql.checkData(0,2501,None)   
+        tdSql.checkData(0,3001,None)
+        tdSql.checkData(0,3501,'NULL')   
+        tdSql.checkData(0,3801,'NULL')   
+        tdSql.checkData(0,4091,'2020-09-13 20:26:44.090') 
+        tdSql.checkData(0,4093,'1600000000000')
+
+        sql = '''insert into table_4096_1 (ts , int_1,smallint_501 , tinyint_1001 , double_1501 , float_2001 , bool_2501 ,
+                bigint_3001 , nchar_3501 , binary_3801 , timestamp_4091 , col4093 )
+                values('2020-09-10 20:26:40.000' , NULL , NULL , NULL , NULL , NULL , NULL , NULL , NULL , NULL , NULL , NULL);'''
+        tdSql.execute(sql)
+        tdSql.query("select * from table_4096_1 where ts ='2020-09-10 20:26:40.000';")
+        tdSql.checkCols(4094)
+        tdSql.checkData(0,1,1)   
+        tdSql.checkData(0,501,501)   
+        tdSql.checkData(0,1001,101)   
+        tdSql.checkData(0,1501,1501)   
+        tdSql.checkData(0,2001,2001)   
+        tdSql.checkData(0,2501,'True')   
+        tdSql.checkData(0,3001,3001)
+        tdSql.checkData(0,3501,'3501')   
+        tdSql.checkData(0,3801,'3801')   
+        tdSql.checkData(0,4091,'2020-09-10 20:26:44.090') 
+        tdSql.checkData(0,4093,'1500000000000') 
+        tdSql.query("select * from stable_4096_1 where ts ='2020-09-10 20:26:40.000';")
+        tdSql.checkCols(4096)
+        tdSql.checkData(0,1,1)   
+        tdSql.checkData(0,501,501)   
+        tdSql.checkData(0,1001,101)   
+        tdSql.checkData(0,1501,1501)   
+        tdSql.checkData(0,2001,2001)   
+        tdSql.checkData(0,2501,'True')   
+        tdSql.checkData(0,3001,3001)
+        tdSql.checkData(0,3501,'3501')   
+        tdSql.checkData(0,3801,'3801')   
+        tdSql.checkData(0,4091,'2020-09-10 20:26:44.090') 
+        tdSql.checkData(0,4093,'1500000000000') 
+        
+
+        tdLog.info("========== test1.2 : insert data , taosdemo force data dropping disk , check data==========")
+        tdLog.info("========== regular_table ==========") 
+        tdSql.execute('''insert into regular_table_2 values( %d , 0, 0, 0, 0, 0, 'binary-0', 'nchar-0', 0.000000, 0.000000, 1600000000000);''' %(self.ts - 200))
+        sql = '''select * from regular_table_2 where ts = %d ;''' %(self.ts - 200)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,0)   
+        tdSql.checkData(0,2,0)   
+        tdSql.checkData(0,3,0)   
+        tdSql.checkData(0,4,0)   
+        tdSql.checkData(0,5,'False')   
+        tdSql.checkData(0,6,'binary-0')   
+        tdSql.checkData(0,7,'nchar-0')
+        tdSql.checkData(0,8,0)   
+        tdSql.checkData(0,9,0)   
+        tdSql.checkData(0,10,'2020-09-13 20:26:40.000') 
+
+        tdSql.execute('''insert into regular_table_2 values( %d , NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL);''' %(self.ts + 200))
+        sql = '''select * from regular_table_2 where ts = %d ;''' %(self.ts + 200)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,2,None)   
+        tdSql.checkData(0,3,None)   
+        tdSql.checkData(0,4,None)   
+        tdSql.checkData(0,5,None)   
+        tdSql.checkData(0,6,None)   
+        tdSql.checkData(0,7,None)
+        tdSql.checkData(0,8,None)   
+        tdSql.checkData(0,9,None)   
+        tdSql.checkData(0,10,None) 
+
+        tdSql.execute('''insert into regular_table_2 values( %d , NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL);''' %(self.ts - 500))
+        sql = '''select * from regular_table_2 where ts = %d ;''' %(self.ts - 500)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,2,None)   
+        tdSql.checkData(0,3,None)   
+        tdSql.checkData(0,4,None)   
+        tdSql.checkData(0,5,None)   
+        tdSql.checkData(0,6,None)   
+        tdSql.checkData(0,7,None)
+        tdSql.checkData(0,8,None)   
+        tdSql.checkData(0,9,None)   
+        tdSql.checkData(0,10,None) 
+
+        tdSql.execute('''insert into regular_table_2 values( %d , NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL);''' %(self.ts + 500))
+        sql = '''select * from regular_table_2 where ts = %d ;''' %(self.ts + 500)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,2,None)   
+        tdSql.checkData(0,3,None)   
+        tdSql.checkData(0,4,None)   
+        tdSql.checkData(0,5,None)   
+        tdSql.checkData(0,6,None)   
+        tdSql.checkData(0,7,None)
+        tdSql.checkData(0,8,None)   
+        tdSql.checkData(0,9,None)   
+        tdSql.checkData(0,10,None) 
+
+
+        tdLog.info("========== stable ==========") 
+        tdSql.execute('''insert into table_2 values( %d , 0, 0, 0, 0, 0, 'binary-0', 'nchar-0', 0.000000, 0.000000, 1600000000000);''' %(self.ts - 200))
+        sql = '''select * from table_2 where ts = %d ;''' %(self.ts - 200)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,0)   
+        tdSql.checkData(0,2,0)   
+        tdSql.checkData(0,3,0)   
+        tdSql.checkData(0,4,0)   
+        tdSql.checkData(0,5,'False')   
+        tdSql.checkData(0,6,'binary-0')   
+        tdSql.checkData(0,7,'nchar-0')
+        tdSql.checkData(0,8,0)   
+        tdSql.checkData(0,9,0)   
+        tdSql.checkData(0,10,'2020-09-13 20:26:40.000') 
+        sql = '''select * from stable_1 where loc = 'table_2' and ts = %d ;''' %(self.ts - 200)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,0)   
+        tdSql.checkData(0,2,0)   
+        tdSql.checkData(0,3,0)   
+        tdSql.checkData(0,4,0)   
+        tdSql.checkData(0,5,'False')   
+        tdSql.checkData(0,6,'binary-0')   
+        tdSql.checkData(0,7,'nchar-0')
+        tdSql.checkData(0,8,0)   
+        tdSql.checkData(0,9,0)   
+        tdSql.checkData(0,10,'2020-09-13 20:26:40.000') 
+
+        tdSql.execute('''insert into table_2 values( %d , NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL);''' %(self.ts + 200))
+        sql = '''select * from table_2 where ts = %d ;''' %(self.ts + 200)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,2,None)   
+        tdSql.checkData(0,3,None)   
+        tdSql.checkData(0,4,None)   
+        tdSql.checkData(0,5,None)   
+        tdSql.checkData(0,6,None)   
+        tdSql.checkData(0,7,None)
+        tdSql.checkData(0,8,None)   
+        tdSql.checkData(0,9,None)   
+        tdSql.checkData(0,10,None) 
+        sql = '''select * from stable_1 where loc = 'table_2' and ts = %d ;''' %(self.ts + 200)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,2,None)   
+        tdSql.checkData(0,3,None)   
+        tdSql.checkData(0,4,None)   
+        tdSql.checkData(0,5,None)   
+        tdSql.checkData(0,6,None)   
+        tdSql.checkData(0,7,None)
+        tdSql.checkData(0,8,None)   
+        tdSql.checkData(0,9,None)   
+        tdSql.checkData(0,10,None) 
+
+        tdSql.execute('''insert into table_2 values( %d , NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL);''' %(self.ts - 500))
+        sql = '''select * from table_2 where ts = %d ;''' %(self.ts - 500)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,2,None)   
+        tdSql.checkData(0,3,None)   
+        tdSql.checkData(0,4,None)   
+        tdSql.checkData(0,5,None)   
+        tdSql.checkData(0,6,None)   
+        tdSql.checkData(0,7,None)
+        tdSql.checkData(0,8,None)   
+        tdSql.checkData(0,9,None)   
+        tdSql.checkData(0,10,None) 
+        sql = '''select * from stable_1 where loc = 'table_2' and ts = %d ;''' %(self.ts - 500)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,2,None)   
+        tdSql.checkData(0,3,None)   
+        tdSql.checkData(0,4,None)   
+        tdSql.checkData(0,5,None)   
+        tdSql.checkData(0,6,None)   
+        tdSql.checkData(0,7,None)
+        tdSql.checkData(0,8,None)   
+        tdSql.checkData(0,9,None)   
+        tdSql.checkData(0,10,None) 
+
+        tdSql.execute('''insert into table_2 values( %d , NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL);''' %(self.ts + 500))
+        sql = '''select * from table_2 where ts = %d ;''' %(self.ts + 500)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,2,None)   
+        tdSql.checkData(0,3,None)   
+        tdSql.checkData(0,4,None)   
+        tdSql.checkData(0,5,None)   
+        tdSql.checkData(0,6,None)   
+        tdSql.checkData(0,7,None)
+        tdSql.checkData(0,8,None)   
+        tdSql.checkData(0,9,None)   
+        tdSql.checkData(0,10,None) 
+        sql = '''select * from stable_1 where loc = 'table_2' and ts = %d ;''' %(self.ts + 500)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,2,None)   
+        tdSql.checkData(0,3,None)   
+        tdSql.checkData(0,4,None)   
+        tdSql.checkData(0,5,None)   
+        tdSql.checkData(0,6,None)   
+        tdSql.checkData(0,7,None)
+        tdSql.checkData(0,8,None)   
+        tdSql.checkData(0,9,None)   
+        tdSql.checkData(0,10,None) 
+
+
+        tdLog.info("========== 4096 regular_table ==========") 
+        sql = "create table regular_table_4096_2 (ts timestamp, "
+        for i in range(500):
+            sql += "int_%d int, " % (i + 1)
+        for i in range(500,1000):
+            sql += "smallint_%d smallint, " % (i + 1)
+        for i in range(1000,1500):
+            sql += "tinyint_%d tinyint, " % (i + 1)
+        for i in range(1500,2000):
+            sql += "double_%d double, " % (i + 1)
+        for i in range(2000,2500):
+            sql += "float_%d float, " % (i + 1)
+        for i in range(2500,3000):
+            sql += "bool_%d bool, " % (i + 1)
+        for i in range(3000,3500):
+            sql += "bigint_%d bigint, " % (i + 1)
+        for i in range(3500,3800):
+            sql += "nchar_%d nchar(4), " % (i + 1)
+        for i in range(3800,4090):
+            sql += "binary_%d binary(10), " % (i + 1)
+        for i in range(4090,4094):
+            sql += "timestamp_%d timestamp, " % (i + 1)
+        sql += "col4095 binary(22))"  
+        tdLog.info(len(sql))      
+        tdSql.execute(sql)
+
+        for i in range(self.num4096):
+            sql = "insert into regular_table_4096_2 values(%d, "
+            for j in range(4090): 
+                str = "'%s', " % 'NULL'             
+                sql += str
+            for j in range(4090,4094):
+                str = "%s, " % (self.ts + j)                
+                sql += str
+            sql += "'%s')" % (self.ts + i)
+            tdSql.execute(sql % (self.ts + i))
+        tdSql.query('''select * from regular_table_4096_2 where ts = %d ;''' %(self.ts))
+        tdSql.checkCols(4096)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,501,None)   
+        tdSql.checkData(0,1001,None)   
+        tdSql.checkData(0,1501,None)   
+        tdSql.checkData(0,2001,None)   
+        tdSql.checkData(0,2501,None)   
+        tdSql.checkData(0,3001,None)
+        tdSql.checkData(0,3501,'NULL')   
+        tdSql.checkData(0,3801,'NULL')   
+        tdSql.checkData(0,4091,'2020-09-13 20:26:44.090') 
+        tdSql.checkData(0,4095,'1600000000000') 
+
+        sql = '''insert into regular_table_4096_2 (ts , int_1,smallint_501 , tinyint_1001 , double_1501 , float_2001 , bool_2501 ,
+                bigint_3001 , nchar_3501 , binary_3801 , timestamp_4091 , col4095 )
+                values('2020-09-10 20:26:40.000' , 1 , 501 , 101 , 1501 , 2001 , 1 , 3001 , '3501' , '3801' ,'2020-09-10 20:26:44.090','1500000000000');'''
+        tdSql.execute(sql)
+        tdSql.query("select * from regular_table_4096_2 where ts ='2020-09-10 20:26:40.000';")
+        tdSql.checkCols(4096)
+        tdSql.checkData(0,1,1)   
+        tdSql.checkData(0,501,501)   
+        tdSql.checkData(0,1001,101)   
+        tdSql.checkData(0,1501,1501)   
+        tdSql.checkData(0,2001,2001)   
+        tdSql.checkData(0,2501,'True')   
+        tdSql.checkData(0,3001,3001)
+        tdSql.checkData(0,3501,'3501')   
+        tdSql.checkData(0,3801,'3801')   
+        tdSql.checkData(0,4091,'2020-09-10 20:26:44.090') 
+        tdSql.checkData(0,4095,'1500000000000') 
+
+        tdLog.info("========== 4096 stable ==========") 
+        sql = "create stable stable_4096_2 (ts timestamp, "
+        for i in range(500):
+            sql += "int_%d int, " % (i + 1)
+        for i in range(500,1000):
+            sql += "smallint_%d smallint, " % (i + 1)
+        for i in range(1000,1500):
+            sql += "tinyint_%d tinyint, " % (i + 1)
+        for i in range(1500,2000):
+            sql += "double_%d double, " % (i + 1)
+        for i in range(2000,2500):
+            sql += "float_%d float, " % (i + 1)
+        for i in range(2500,3000):
+            sql += "bool_%d bool, " % (i + 1)
+        for i in range(3000,3500):
+            sql += "bigint_%d bigint, " % (i + 1)
+        for i in range(3500,3800):
+            sql += "nchar_%d nchar(4), " % (i + 1)
+        for i in range(3800,4090):
+            sql += "binary_%d binary(10), " % (i + 1)
+        for i in range(4090,4092):
+            sql += "timestamp_%d timestamp, " % (i + 1)
+        sql += " col4093 binary(22)) "  
+        sql += " tags (loc nchar(20),tag_1 int) "
+        tdLog.info(len(sql))      
+        tdSql.execute(sql)
+
+        sql = " create table table_4096_2 using stable_4096_2 tags ('table_4096_2',1); "
+        tdSql.execute(sql)
+
+        for i in range(self.num4096):
+            sql = "insert into table_4096_2 values(%d, "
+            for j in range(4090): 
+                str = "'%s', " % 'NULL'             
+                sql += str
+            for j in range(4090,4092):
+                str = "%s, " % (self.ts + j)                
+                sql += str
+            sql += "'%s')" % (self.ts + i)
+            tdSql.execute(sql % (self.ts + i))
+        tdSql.query('''select * from table_4096_2 where ts = %d ;''' %(self.ts))
+        tdSql.checkCols(4094)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,501,None)   
+        tdSql.checkData(0,1001,None)   
+        tdSql.checkData(0,1501,None)   
+        tdSql.checkData(0,2001,None)   
+        tdSql.checkData(0,2501,None)   
+        tdSql.checkData(0,3001,None)
+        tdSql.checkData(0,3501,'NULL')   
+        tdSql.checkData(0,3801,'NULL')   
+        tdSql.checkData(0,4091,'2020-09-13 20:26:44.090') 
+        tdSql.checkData(0,4093,'1600000000000')
+        tdSql.query('''select * from stable_4096_2 where ts = %d ;''' %(self.ts))
+        tdSql.checkCols(4096)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,501,None)   
+        tdSql.checkData(0,1001,None)   
+        tdSql.checkData(0,1501,None)   
+        tdSql.checkData(0,2001,None)   
+        tdSql.checkData(0,2501,None)   
+        tdSql.checkData(0,3001,None)
+        tdSql.checkData(0,3501,'NULL')   
+        tdSql.checkData(0,3801,'NULL')   
+        tdSql.checkData(0,4091,'2020-09-13 20:26:44.090') 
+        tdSql.checkData(0,4093,'1600000000000')
+
+        sql = '''insert into table_4096_2 (ts , int_1,smallint_501 , tinyint_1001 , double_1501 , float_2001 , bool_2501 ,
+                bigint_3001 , nchar_3501 , binary_3801 , timestamp_4091 , col4093 )
+                values('2020-09-10 20:26:40.000' , 1 , 501 , 101 , 1501 , 2001 , 1 , 3001 , '3501' , '3801' ,'2020-09-10 20:26:44.090','1500000000000');'''
+        tdSql.execute(sql)
+        tdSql.query("select * from table_4096_2 where ts ='2020-09-10 20:26:40.000';")
+        tdSql.checkCols(4094)
+        tdSql.checkData(0,1,1)   
+        tdSql.checkData(0,501,501)   
+        tdSql.checkData(0,1001,101)   
+        tdSql.checkData(0,1501,1501)   
+        tdSql.checkData(0,2001,2001)   
+        tdSql.checkData(0,2501,'True')   
+        tdSql.checkData(0,3001,3001)
+        tdSql.checkData(0,3501,'3501')   
+        tdSql.checkData(0,3801,'3801')   
+        tdSql.checkData(0,4091,'2020-09-10 20:26:44.090') 
+        tdSql.checkData(0,4093,'1500000000000') 
+        tdSql.query("select * from stable_4096_2 where ts ='2020-09-10 20:26:40.000';")
+        tdSql.checkCols(4096)
+        tdSql.checkData(0,1,1)   
+        tdSql.checkData(0,501,501)   
+        tdSql.checkData(0,1001,101)   
+        tdSql.checkData(0,1501,1501)   
+        tdSql.checkData(0,2001,2001)   
+        tdSql.checkData(0,2501,'True')   
+        tdSql.checkData(0,3001,3001)
+        tdSql.checkData(0,3501,'3501')   
+        tdSql.checkData(0,3801,'3801')   
+        tdSql.checkData(0,4091,'2020-09-10 20:26:44.090') 
+        tdSql.checkData(0,4093,'1500000000000') 
+
+
+        # taosdemo force data dropping disk
+        buildPath = self.getBuildPath()
+        if (buildPath == ""):
+            tdLog.exit("taosd not found!")
+        else:
+            tdLog.info("taosd found in %s" % buildPath)
+        binPath = buildPath+ "/build/bin/"
+        os.system("%staosdemo -N -d taosdemo -t 100 -n 100 -l 1000 -y" % binPath)
+
+        tdSql.execute('''insert into table_2 values( %d , NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL);''' %(self.ts - 200))
+        sql = '''select * from table_2 where ts = %d ;''' %(self.ts - 200)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,0)   
+        tdSql.checkData(0,2,0)   
+        tdSql.checkData(0,3,0)   
+        tdSql.checkData(0,4,0)   
+        tdSql.checkData(0,5,'False')   
+        tdSql.checkData(0,6,'binary-0')   
+        tdSql.checkData(0,7,'nchar-0')
+        tdSql.checkData(0,8,0)   
+        tdSql.checkData(0,9,0)   
+        tdSql.checkData(0,10,'2020-09-13 20:26:40.000') 
+        sql = '''select * from stable_1 where loc = 'table_2' and ts = %d ;''' %(self.ts - 200)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,0)   
+        tdSql.checkData(0,2,0)   
+        tdSql.checkData(0,3,0)   
+        tdSql.checkData(0,4,0)   
+        tdSql.checkData(0,5,'False')   
+        tdSql.checkData(0,6,'binary-0')   
+        tdSql.checkData(0,7,'nchar-0')
+        tdSql.checkData(0,8,0)   
+        tdSql.checkData(0,9,0)   
+        tdSql.checkData(0,10,'2020-09-13 20:26:40.000') 
+
+        tdSql.execute('''insert into table_2 values( %d , 0, 0, 0, 0, 0, 'binary+0', 'nchar+0', 0.000000, 0.000000, 1600000000000);''' %(self.ts + 200))
+        sql = '''select * from table_2 where ts = %d ;''' %(self.ts + 200)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,2,None)   
+        tdSql.checkData(0,3,None)   
+        tdSql.checkData(0,4,None)   
+        tdSql.checkData(0,5,None)   
+        tdSql.checkData(0,6,None)   
+        tdSql.checkData(0,7,None)
+        tdSql.checkData(0,8,None)   
+        tdSql.checkData(0,9,None)   
+        tdSql.checkData(0,10,None)
+        sql = '''select * from stable_1 where loc = 'table_2' and ts = %d ;''' %(self.ts + 200)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,2,None)   
+        tdSql.checkData(0,3,None)   
+        tdSql.checkData(0,4,None)   
+        tdSql.checkData(0,5,None)   
+        tdSql.checkData(0,6,None)   
+        tdSql.checkData(0,7,None)
+        tdSql.checkData(0,8,None)   
+        tdSql.checkData(0,9,None)   
+        tdSql.checkData(0,10,None) 
+
+        tdSql.error('''insert into table_2 values( %d , -2147483648, -9223372036854775807, -32767, -127, 0, 'binary-0', 'nchar-0', 0.000000, 0.000000, 1600000000000);''' %(self.ts - 500))
+        tdSql.error('''insert into table_2 values( %d , -2147483647, -9223372036854775808, -32767, -127, 0, 'binary-0', 'nchar-0', 0.000000, 0.000000, 1600000000000);''' %(self.ts - 500))
+        tdSql.error('''insert into table_2 values( %d , -2147483647, -9223372036854775807, -32768, -127, 0, 'binary-0', 'nchar-0', 0.000000, 0.000000, 1600000000000);''' %(self.ts - 500))
+        tdSql.error('''insert into table_2 values( %d , -2147483647, -9223372036854775807, -32767, -128, 0, 'binary-0', 'nchar-0', 0.000000, 0.000000, 1600000000000);''' %(self.ts - 500))
+        tdSql.error('''insert into table_2 values( %d , -2147483647, -9223372036854775807, -32767, -127, 0, 'binary-0123', 'nchar-0', 0.000000, 0.000000, 1600000000000);''' %(self.ts - 500))
+        tdSql.error('''insert into table_2 values( %d , -2147483647, -9223372036854775807, -32767, -127, 0, 'binary-0', 'nchar-01234', 0.000000, 0.000000, 1600000000000);''' %(self.ts - 500))
+        
+        tdSql.execute('''insert into table_2 values( %d , -2147483647, -9223372036854775807, -32767, -127, 0, 'binary-012', 'nchar-0123', 0.000000, 0.000000, 1600000000000);''' %(self.ts - 500))
+        sql = '''select * from table_2 where ts = %d ;''' %(self.ts - 500)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,2,None)   
+        tdSql.checkData(0,3,None)   
+        tdSql.checkData(0,4,None)   
+        tdSql.checkData(0,5,None)   
+        tdSql.checkData(0,6,None)   
+        tdSql.checkData(0,7,None)
+        tdSql.checkData(0,8,None)   
+        tdSql.checkData(0,9,None)   
+        tdSql.checkData(0,10,None) 
+        sql = '''select * from stable_1 where loc = 'table_2' and ts = %d ;''' %(self.ts - 500)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,2,None)   
+        tdSql.checkData(0,3,None)   
+        tdSql.checkData(0,4,None)   
+        tdSql.checkData(0,5,None)   
+        tdSql.checkData(0,6,None)   
+        tdSql.checkData(0,7,None)
+        tdSql.checkData(0,8,None)   
+        tdSql.checkData(0,9,None)   
+        tdSql.checkData(0,10,None)  
+
+        tdSql.error('''insert into table_2 values( %d , 2147483648, 9223372036854775807, 32767, 127, 0, 'binary+0', 'nchar+0', 0.000000, 0.000000, 1600000000000);''' %(self.ts + 500))
+        tdSql.error('''insert into table_2 values( %d , 2147483647, 9223372036854775808, 32767, 127, 0, 'binary+0', 'nchar+0', 0.000000, 0.000000, 1600000000000);''' %(self.ts + 500))
+        tdSql.error('''insert into table_2 values( %d , 2147483647, 9223372036854775807, 32768, 127, 0, 'binary+0', 'nchar+0', 0.000000, 0.000000, 1600000000000);''' %(self.ts + 500))
+        tdSql.error('''insert into table_2 values( %d , 2147483647, 9223372036854775807, 32767, 128, 0, 'binary+0', 'nchar+0', 0.000000, 0.000000, 1600000000000);''' %(self.ts + 500))
+        tdSql.error('''insert into table_2 values( %d , 2147483647, 9223372036854775807, 32767, 127, 0, 'binary+0123', 'nchar+0', 0.000000, 0.000000, 1600000000000);''' %(self.ts + 500))
+        tdSql.error('''insert into table_2 values( %d , 2147483647, 9223372036854775807, 32767, 127, 0, 'binary+0', 'nchar+01234', 0.000000, 0.000000, 1600000000000);''' %(self.ts + 500))
+        
+        tdSql.execute('''insert into table_2 values( %d , 2147483647, 9223372036854775807, 32767, 127, 0, 'binary+012', 'nchar+0123', 0.000000, 0.000000, 1600000000000);''' %(self.ts + 500))
+        sql = '''select * from table_2 where ts = %d ;''' %(self.ts + 500)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,2,None)   
+        tdSql.checkData(0,3,None)   
+        tdSql.checkData(0,4,None)   
+        tdSql.checkData(0,5,None)   
+        tdSql.checkData(0,6,None)   
+        tdSql.checkData(0,7,None)
+        tdSql.checkData(0,8,None)   
+        tdSql.checkData(0,9,None)   
+        tdSql.checkData(0,10,None) 
+        sql = '''select * from stable_1 where loc = 'table_2' and ts = %d ;''' %(self.ts + 500)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,2,None)   
+        tdSql.checkData(0,3,None)   
+        tdSql.checkData(0,4,None)   
+        tdSql.checkData(0,5,None)   
+        tdSql.checkData(0,6,None)   
+        tdSql.checkData(0,7,None)
+        tdSql.checkData(0,8,None)   
+        tdSql.checkData(0,9,None)   
+        tdSql.checkData(0,10,None) 
+
+        tdLog.info("========== 4096 regular_table ==========") 
+        sql = '''insert into regular_table_4096_2 (ts , int_1,smallint_501 , tinyint_1001 , double_1501 , float_2001 , bool_2501 ,
+                bigint_3001 , nchar_3501 , binary_3801 , timestamp_4091 , col4095 )
+                values('2020-09-13 20:26:40.000' , 1 , 501 , 101 , 1501 , 2001 , 1 , 3001 , '3501' , '3801' ,'2020-09-13 20:26:44.090','1600000000000');'''
+        tdSql.execute(sql)
+        tdSql.query("select * from regular_table_4096_2 where ts ='2020-09-13 20:26:40.000';")
+        tdSql.checkCols(4096)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,501,None)   
+        tdSql.checkData(0,1001,None)   
+        tdSql.checkData(0,1501,None)   
+        tdSql.checkData(0,2001,None)   
+        tdSql.checkData(0,2501,None)   
+        tdSql.checkData(0,3001,None)
+        tdSql.checkData(0,3501,'NULL')   
+        tdSql.checkData(0,3801,'NULL')   
+        tdSql.checkData(0,4091,'2020-09-13 20:26:44.090') 
+        tdSql.checkData(0,4095,'1600000000000') 
+
+        sql = '''insert into regular_table_4096_2 (ts , int_1,smallint_501 , tinyint_1001 , double_1501 , float_2001 , bool_2501 ,
+                bigint_3001 , nchar_3501 , binary_3801 , timestamp_4091 , col4095 )
+                values('2020-09-10 20:26:40.000' , NULL , NULL , NULL , NULL , NULL , NULL , NULL , NULL , NULL , NULL , NULL);'''
+        tdSql.execute(sql)
+        tdSql.query("select * from regular_table_4096_2 where ts ='2020-09-10 20:26:40.000';")
+        tdSql.checkCols(4096)
+        tdSql.checkData(0,1,1)   
+        tdSql.checkData(0,501,501)   
+        tdSql.checkData(0,1001,101)   
+        tdSql.checkData(0,1501,1501)   
+        tdSql.checkData(0,2001,2001)   
+        tdSql.checkData(0,2501,'True')   
+        tdSql.checkData(0,3001,3001)
+        tdSql.checkData(0,3501,'3501')   
+        tdSql.checkData(0,3801,'3801')   
+        tdSql.checkData(0,4091,'2020-09-10 20:26:44.090') 
+        tdSql.checkData(0,4095,'1500000000000') 
+
+        tdLog.info("========== 4096 stable ==========") 
+        sql = '''insert into table_4096_2 (ts , int_1,smallint_501 , tinyint_1001 , double_1501 , float_2001 , bool_2501 ,
+                bigint_3001 , nchar_3501 , binary_3801 , timestamp_4091 , col4093 )
+                values('2020-09-13 20:26:40.000' , 1 , 501 , 101 , 1501 , 2001 , 1 , 3001 , '3501' , '3801' ,'2020-09-13 20:26:44.090','1600000000000');'''
+        tdSql.execute(sql)
+        tdSql.query("select * from table_4096_2 where ts ='2020-09-13 20:26:40.000';")
+        tdSql.checkCols(4094)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,501,None)   
+        tdSql.checkData(0,1001,None)   
+        tdSql.checkData(0,1501,None)   
+        tdSql.checkData(0,2001,None)   
+        tdSql.checkData(0,2501,None)   
+        tdSql.checkData(0,3001,None)
+        tdSql.checkData(0,3501,'NULL')   
+        tdSql.checkData(0,3801,'NULL')    
+        tdSql.checkData(0,4091,'2020-09-13 20:26:44.090') 
+        tdSql.checkData(0,4093,'1600000000000') 
+        tdSql.query("select * from stable_4096_2 where ts ='2020-09-13 20:26:40.000';")
+        tdSql.checkCols(4096)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,501,None)   
+        tdSql.checkData(0,1001,None)   
+        tdSql.checkData(0,1501,None)   
+        tdSql.checkData(0,2001,None)   
+        tdSql.checkData(0,2501,None)   
+        tdSql.checkData(0,3001,None)
+        tdSql.checkData(0,3501,'NULL')   
+        tdSql.checkData(0,3801,'NULL')   
+        tdSql.checkData(0,4091,'2020-09-13 20:26:44.090') 
+        tdSql.checkData(0,4093,'1600000000000') 
+
+        sql = '''insert into table_4096_2 (ts , int_1,smallint_501 , tinyint_1001 , double_1501 , float_2001 , bool_2501 ,
+                bigint_3001 , nchar_3501 , binary_3801 , timestamp_4091 , col4093 )
+                values('2020-09-10 20:26:40.000' , NULL , NULL , NULL , NULL , NULL , NULL , NULL , NULL , NULL , NULL , NULL);'''
+        tdSql.execute(sql)
+        tdSql.query("select * from table_4096_2 where ts ='2020-09-10 20:26:40.000';")
+        tdSql.checkCols(4094)
+        tdSql.checkData(0,1,1)   
+        tdSql.checkData(0,501,501)   
+        tdSql.checkData(0,1001,101)   
+        tdSql.checkData(0,1501,1501)   
+        tdSql.checkData(0,2001,2001)   
+        tdSql.checkData(0,2501,'True')   
+        tdSql.checkData(0,3001,3001)
+        tdSql.checkData(0,3501,'3501')   
+        tdSql.checkData(0,3801,'3801')   
+        tdSql.checkData(0,4091,'2020-09-10 20:26:44.090') 
+        tdSql.checkData(0,4093,'1500000000000') 
+        tdSql.query("select * from stable_4096_2 where ts ='2020-09-10 20:26:40.000';")
+        tdSql.checkCols(4096)
+        tdSql.checkData(0,1,1)   
+        tdSql.checkData(0,501,501)   
+        tdSql.checkData(0,1001,101)   
+        tdSql.checkData(0,1501,1501)   
+        tdSql.checkData(0,2001,2001)   
+        tdSql.checkData(0,2501,'True')   
+        tdSql.checkData(0,3001,3001)
+        tdSql.checkData(0,3501,'3501')   
+        tdSql.checkData(0,3801,'3801')   
+        tdSql.checkData(0,4091,'2020-09-10 20:26:44.090') 
+        tdSql.checkData(0,4093,'1500000000000') 
+
+        tdLog.info("========== test1.3 : insert data , tdDnodes restart force data dropping disk , check data==========")
+        tdLog.info("========== regular_table ==========") 
+        tdSql.execute('''insert into regular_table_3 values( %d , 0, 0, 0, 0, 0, 'binary-0', 'nchar-0', 0.000000, 0.000000, 1600000000000);''' %(self.ts - 200))
+        sql = '''select * from regular_table_3 where ts = %d ;''' %(self.ts - 200)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,0)   
+        tdSql.checkData(0,2,0)   
+        tdSql.checkData(0,3,0)   
+        tdSql.checkData(0,4,0)   
+        tdSql.checkData(0,5,'False')   
+        tdSql.checkData(0,6,'binary-0')   
+        tdSql.checkData(0,7,'nchar-0')
+        tdSql.checkData(0,8,0)   
+        tdSql.checkData(0,9,0)   
+        tdSql.checkData(0,10,'2020-09-13 20:26:40.000') 
+
+        tdSql.execute('''insert into regular_table_3 values( %d , NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL);''' %(self.ts + 200))
+        sql = '''select * from regular_table_3 where ts = %d ;''' %(self.ts + 200)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,2,None)   
+        tdSql.checkData(0,3,None)   
+        tdSql.checkData(0,4,None)   
+        tdSql.checkData(0,5,None)   
+        tdSql.checkData(0,6,None)   
+        tdSql.checkData(0,7,None)
+        tdSql.checkData(0,8,None)   
+        tdSql.checkData(0,9,None)   
+        tdSql.checkData(0,10,None) 
+
+        tdSql.execute('''insert into regular_table_3 values( %d , NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL);''' %(self.ts - 500))
+        sql = '''select * from regular_table_3 where ts = %d ;''' %(self.ts - 500)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,2,None)   
+        tdSql.checkData(0,3,None)   
+        tdSql.checkData(0,4,None)   
+        tdSql.checkData(0,5,None)   
+        tdSql.checkData(0,6,None)   
+        tdSql.checkData(0,7,None)
+        tdSql.checkData(0,8,None)   
+        tdSql.checkData(0,9,None)   
+        tdSql.checkData(0,10,None) 
+
+        tdSql.execute('''insert into regular_table_3 values( %d , NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL);''' %(self.ts + 500))
+        sql = '''select * from regular_table_3 where ts = %d ;''' %(self.ts + 500)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,2,None)   
+        tdSql.checkData(0,3,None)   
+        tdSql.checkData(0,4,None)   
+        tdSql.checkData(0,5,None)   
+        tdSql.checkData(0,6,None)   
+        tdSql.checkData(0,7,None)
+        tdSql.checkData(0,8,None)   
+        tdSql.checkData(0,9,None)   
+        tdSql.checkData(0,10,None) 
+
+        tdLog.info("========== stable ==========") 
+        tdSql.execute('''insert into table_3 values( %d , 0, 0, 0, 0, 0, 'binary-0', 'nchar-0', 0.000000, 0.000000, 1600000000000);''' %(self.ts - 200))
+        sql = '''select * from table_3 where ts = %d ;''' %(self.ts - 200)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,0)   
+        tdSql.checkData(0,2,0)   
+        tdSql.checkData(0,3,0)   
+        tdSql.checkData(0,4,0)   
+        tdSql.checkData(0,5,'False')   
+        tdSql.checkData(0,6,'binary-0')   
+        tdSql.checkData(0,7,'nchar-0')
+        tdSql.checkData(0,8,0)   
+        tdSql.checkData(0,9,0)   
+        tdSql.checkData(0,10,'2020-09-13 20:26:40.000') 
+        sql = '''select * from stable_1 where loc = 'table_3' and ts = %d ;''' %(self.ts - 200)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,0)   
+        tdSql.checkData(0,2,0)   
+        tdSql.checkData(0,3,0)   
+        tdSql.checkData(0,4,0)   
+        tdSql.checkData(0,5,'False')   
+        tdSql.checkData(0,6,'binary-0')   
+        tdSql.checkData(0,7,'nchar-0')
+        tdSql.checkData(0,8,0)   
+        tdSql.checkData(0,9,0)   
+        tdSql.checkData(0,10,'2020-09-13 20:26:40.000') 
+
+        tdSql.execute('''insert into table_3 values( %d , NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL);''' %(self.ts + 200))
+        sql = '''select * from table_3 where ts = %d ;''' %(self.ts + 200)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,2,None)   
+        tdSql.checkData(0,3,None)   
+        tdSql.checkData(0,4,None)   
+        tdSql.checkData(0,5,None)   
+        tdSql.checkData(0,6,None)   
+        tdSql.checkData(0,7,None)
+        tdSql.checkData(0,8,None)   
+        tdSql.checkData(0,9,None)   
+        tdSql.checkData(0,10,None) 
+        sql = '''select * from stable_1 where loc = 'table_3' and ts = %d ;''' %(self.ts + 200)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,2,None)   
+        tdSql.checkData(0,3,None)   
+        tdSql.checkData(0,4,None)   
+        tdSql.checkData(0,5,None)   
+        tdSql.checkData(0,6,None)   
+        tdSql.checkData(0,7,None)
+        tdSql.checkData(0,8,None)   
+        tdSql.checkData(0,9,None)   
+        tdSql.checkData(0,10,None) 
+
+        tdSql.execute('''insert into table_3 values( %d , NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL);''' %(self.ts - 500))
+        sql = '''select * from table_3 where ts = %d ;''' %(self.ts - 500)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,2,None)   
+        tdSql.checkData(0,3,None)   
+        tdSql.checkData(0,4,None)   
+        tdSql.checkData(0,5,None)   
+        tdSql.checkData(0,6,None)   
+        tdSql.checkData(0,7,None)
+        tdSql.checkData(0,8,None)   
+        tdSql.checkData(0,9,None)   
+        tdSql.checkData(0,10,None) 
+        sql = '''select * from stable_1 where loc = 'table_3' and ts = %d ;''' %(self.ts - 500)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,2,None)   
+        tdSql.checkData(0,3,None)   
+        tdSql.checkData(0,4,None)   
+        tdSql.checkData(0,5,None)   
+        tdSql.checkData(0,6,None)   
+        tdSql.checkData(0,7,None)
+        tdSql.checkData(0,8,None)   
+        tdSql.checkData(0,9,None)   
+        tdSql.checkData(0,10,None) 
+
+        tdSql.execute('''insert into table_3 values( %d , NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL);''' %(self.ts + 500))
+        sql = '''select * from table_3 where ts = %d ;''' %(self.ts + 500)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,2,None)   
+        tdSql.checkData(0,3,None)   
+        tdSql.checkData(0,4,None)   
+        tdSql.checkData(0,5,None)   
+        tdSql.checkData(0,6,None)   
+        tdSql.checkData(0,7,None)
+        tdSql.checkData(0,8,None)   
+        tdSql.checkData(0,9,None)   
+        tdSql.checkData(0,10,None) 
+        sql = '''select * from stable_1 where loc = 'table_3' and ts = %d ;''' %(self.ts + 500)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,2,None)   
+        tdSql.checkData(0,3,None)   
+        tdSql.checkData(0,4,None)   
+        tdSql.checkData(0,5,None)   
+        tdSql.checkData(0,6,None)   
+        tdSql.checkData(0,7,None)
+        tdSql.checkData(0,8,None)   
+        tdSql.checkData(0,9,None)   
+        tdSql.checkData(0,10,None) 
+
+
+        tdLog.info("========== 4096 regular_table ==========") 
+        sql = "create table regular_table_4096_3 (ts timestamp, "
+        for i in range(500):
+            sql += "int_%d int, " % (i + 1)
+        for i in range(500,1000):
+            sql += "smallint_%d smallint, " % (i + 1)
+        for i in range(1000,1500):
+            sql += "tinyint_%d tinyint, " % (i + 1)
+        for i in range(1500,2000):
+            sql += "double_%d double, " % (i + 1)
+        for i in range(2000,2500):
+            sql += "float_%d float, " % (i + 1)
+        for i in range(2500,3000):
+            sql += "bool_%d bool, " % (i + 1)
+        for i in range(3000,3500):
+            sql += "bigint_%d bigint, " % (i + 1)
+        for i in range(3500,3800):
+            sql += "nchar_%d nchar(4), " % (i + 1)
+        for i in range(3800,4090):
+            sql += "binary_%d binary(10), " % (i + 1)
+        for i in range(4090,4094):
+            sql += "timestamp_%d timestamp, " % (i + 1)
+        sql += "col4095 binary(22))"  
+        tdLog.info(len(sql))      
+        tdSql.execute(sql)
+
+        for i in range(self.num4096):
+            sql = "insert into regular_table_4096_3 values(%d, "
+            for j in range(4090): 
+                str = "'%s', " % 'NULL'             
+                sql += str
+            for j in range(4090,4094):
+                str = "%s, " % (self.ts + j)                
+                sql += str
+            sql += "'%s')" % (self.ts + i)
+            tdSql.execute(sql % (self.ts + i))
+        tdSql.query('''select * from regular_table_4096_3 where ts = %d ;''' %(self.ts))
+        tdSql.checkCols(4096)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,501,None)   
+        tdSql.checkData(0,1001,None)   
+        tdSql.checkData(0,1501,None)   
+        tdSql.checkData(0,2001,None)   
+        tdSql.checkData(0,2501,None)   
+        tdSql.checkData(0,3001,None)
+        tdSql.checkData(0,3501,'NULL')   
+        tdSql.checkData(0,3801,'NULL')   
+        tdSql.checkData(0,4091,'2020-09-13 20:26:44.090') 
+        tdSql.checkData(0,4095,'1600000000000') 
+
+        sql = '''insert into regular_table_4096_3 (ts , int_1,smallint_501 , tinyint_1001 , double_1501 , float_2001 , bool_2501 ,
+                bigint_3001 , nchar_3501 , binary_3801 , timestamp_4091 , col4095 )
+                values('2020-09-10 20:26:40.000' , 1 , 501 , 101 , 1501 , 2001 , 1 , 3001 , '3501' , '3801' ,'2020-09-10 20:26:44.090','1500000000000');'''
+        tdSql.execute(sql)
+        tdSql.query("select * from regular_table_4096_3 where ts ='2020-09-10 20:26:40.000';")
+        tdSql.checkCols(4096)
+        tdSql.checkData(0,1,1)   
+        tdSql.checkData(0,501,501)   
+        tdSql.checkData(0,1001,101)   
+        tdSql.checkData(0,1501,1501)   
+        tdSql.checkData(0,2001,2001)   
+        tdSql.checkData(0,2501,'True')   
+        tdSql.checkData(0,3001,3001)
+        tdSql.checkData(0,3501,'3501')   
+        tdSql.checkData(0,3801,'3801')   
+        tdSql.checkData(0,4091,'2020-09-10 20:26:44.090') 
+        tdSql.checkData(0,4095,'1500000000000') 
+
+        tdLog.info("========== 4096 stable ==========") 
+        sql = "create stable stable_4096_3 (ts timestamp, "
+        for i in range(500):
+            sql += "int_%d int, " % (i + 1)
+        for i in range(500,1000):
+            sql += "smallint_%d smallint, " % (i + 1)
+        for i in range(1000,1500):
+            sql += "tinyint_%d tinyint, " % (i + 1)
+        for i in range(1500,2000):
+            sql += "double_%d double, " % (i + 1)
+        for i in range(2000,2500):
+            sql += "float_%d float, " % (i + 1)
+        for i in range(2500,3000):
+            sql += "bool_%d bool, " % (i + 1)
+        for i in range(3000,3500):
+            sql += "bigint_%d bigint, " % (i + 1)
+        for i in range(3500,3800):
+            sql += "nchar_%d nchar(4), " % (i + 1)
+        for i in range(3800,4090):
+            sql += "binary_%d binary(10), " % (i + 1)
+        for i in range(4090,4092):
+            sql += "timestamp_%d timestamp, " % (i + 1)
+        sql += " col4093 binary(22)) "  
+        sql += " tags (loc nchar(20),tag_1 int) "
+        tdLog.info(len(sql))      
+        tdSql.execute(sql)
+
+        sql = " create table table_4096_3 using stable_4096_3 tags ('table_4096_3',1); "
+        tdSql.execute(sql)
+
+        for i in range(self.num4096):
+            sql = "insert into table_4096_3 values(%d, "
+            for j in range(4090): 
+                str = "'%s', " % 'NULL'             
+                sql += str
+            for j in range(4090,4092):
+                str = "%s, " % (self.ts + j)                
+                sql += str
+            sql += "'%s')" % (self.ts + i)
+            tdSql.execute(sql % (self.ts + i))
+        tdSql.query('''select * from table_4096_3 where ts = %d ;''' %(self.ts))
+        tdSql.checkCols(4094)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,501,None)   
+        tdSql.checkData(0,1001,None)   
+        tdSql.checkData(0,1501,None)   
+        tdSql.checkData(0,2001,None)   
+        tdSql.checkData(0,2501,None)   
+        tdSql.checkData(0,3001,None)
+        tdSql.checkData(0,3501,'NULL')   
+        tdSql.checkData(0,3801,'NULL')   
+        tdSql.checkData(0,4091,'2020-09-13 20:26:44.090') 
+        tdSql.checkData(0,4093,'1600000000000')
+        tdSql.query('''select * from stable_4096_3 where ts = %d ;''' %(self.ts))
+        tdSql.checkCols(4096)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,501,None)   
+        tdSql.checkData(0,1001,None)   
+        tdSql.checkData(0,1501,None)   
+        tdSql.checkData(0,2001,None)   
+        tdSql.checkData(0,2501,None)   
+        tdSql.checkData(0,3001,None)
+        tdSql.checkData(0,3501,'NULL')   
+        tdSql.checkData(0,3801,'NULL')   
+        tdSql.checkData(0,4091,'2020-09-13 20:26:44.090') 
+        tdSql.checkData(0,4093,'1600000000000')
+
+        sql = '''insert into table_4096_3 (ts , int_1,smallint_501 , tinyint_1001 , double_1501 , float_2001 , bool_2501 ,
+                bigint_3001 , nchar_3501 , binary_3801 , timestamp_4091 , col4093 )
+                values('2020-09-10 20:26:40.000' , 1 , 501 , 101 , 1501 , 2001 , 1 , 3001 , '3501' , '3801' ,'2020-09-10 20:26:44.090','1500000000000');'''
+        tdSql.execute(sql)
+        tdSql.query("select * from table_4096_3 where ts ='2020-09-10 20:26:40.000';")
+        tdSql.checkCols(4094)
+        tdSql.checkData(0,1,1)   
+        tdSql.checkData(0,501,501)   
+        tdSql.checkData(0,1001,101)   
+        tdSql.checkData(0,1501,1501)   
+        tdSql.checkData(0,2001,2001)   
+        tdSql.checkData(0,2501,'True')   
+        tdSql.checkData(0,3001,3001)
+        tdSql.checkData(0,3501,'3501')   
+        tdSql.checkData(0,3801,'3801')   
+        tdSql.checkData(0,4091,'2020-09-10 20:26:44.090') 
+        tdSql.checkData(0,4093,'1500000000000') 
+        tdSql.query("select * from stable_4096_3 where ts ='2020-09-10 20:26:40.000';")
+        tdSql.checkCols(4096)
+        tdSql.checkData(0,1,1)   
+        tdSql.checkData(0,501,501)   
+        tdSql.checkData(0,1001,101)   
+        tdSql.checkData(0,1501,1501)   
+        tdSql.checkData(0,2001,2001)   
+        tdSql.checkData(0,2501,'True')   
+        tdSql.checkData(0,3001,3001)
+        tdSql.checkData(0,3501,'3501')   
+        tdSql.checkData(0,3801,'3801')   
+        tdSql.checkData(0,4091,'2020-09-10 20:26:44.090') 
+        tdSql.checkData(0,4093,'1500000000000') 
+
+        # tdDnodes restart force data dropping disk
+        tdDnodes.stop(1)
+        tdDnodes.start(1)
+
+        tdLog.info("========== regular_table ==========") 
+        tdSql.execute('''insert into regular_table_3 values( %d , NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL);''' %(self.ts - 200))
+        sql = '''select * from regular_table_3 where ts = %d ;''' %(self.ts - 200)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,0)   
+        tdSql.checkData(0,2,0)   
+        tdSql.checkData(0,3,0)   
+        tdSql.checkData(0,4,0)   
+        tdSql.checkData(0,5,'False')   
+        tdSql.checkData(0,6,'binary-0')   
+        tdSql.checkData(0,7,'nchar-0')
+        tdSql.checkData(0,8,0)   
+        tdSql.checkData(0,9,0)   
+        tdSql.checkData(0,10,'2020-09-13 20:26:40.000') 
+
+        tdSql.execute('''insert into regular_table_3 values( %d , 0, 0, 0, 0, 0, 'binary+0', 'nchar+0', 0.000000, 0.000000, 1600000000000);''' %(self.ts + 200))
+        sql = '''select * from regular_table_3 where ts = %d ;''' %(self.ts + 200)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,2,None)   
+        tdSql.checkData(0,3,None)   
+        tdSql.checkData(0,4,None)   
+        tdSql.checkData(0,5,None)   
+        tdSql.checkData(0,6,None)   
+        tdSql.checkData(0,7,None)
+        tdSql.checkData(0,8,None)   
+        tdSql.checkData(0,9,None)   
+        tdSql.checkData(0,10,None) 
+
+        tdSql.error('''insert into regular_table_3 values( %d , -2147483648, -9223372036854775807, -32767, -127, 0, 'binary-0', 'nchar-0', 0.000000, 0.000000, 1600000000000);''' %(self.ts - 500))
+        tdSql.error('''insert into regular_table_3 values( %d , -2147483647, -9223372036854775808, -32767, -127, 0, 'binary-0', 'nchar-0', 0.000000, 0.000000, 1600000000000);''' %(self.ts - 500))
+        tdSql.error('''insert into regular_table_3 values( %d , -2147483647, -9223372036854775807, -32768, -127, 0, 'binary-0', 'nchar-0', 0.000000, 0.000000, 1600000000000);''' %(self.ts - 500))
+        tdSql.error('''insert into regular_table_3 values( %d , -2147483647, -9223372036854775807, -32767, -128, 0, 'binary-0', 'nchar-0', 0.000000, 0.000000, 1600000000000);''' %(self.ts - 500))
+        tdSql.error('''insert into regular_table_3 values( %d , -2147483647, -9223372036854775807, -32767, -127, 0, 'binary-0123', 'nchar-0', 0.000000, 0.000000, 1600000000000);''' %(self.ts - 500))
+        tdSql.error('''insert into regular_table_3 values( %d , -2147483647, -9223372036854775807, -32767, -127, 0, 'binary-0', 'nchar-01234', 0.000000, 0.000000, 1600000000000);''' %(self.ts - 500))
+        
+        tdSql.execute('''insert into regular_table_3 values( %d , -2147483647, -9223372036854775807, -32767, -127, 0, 'binary-012', 'nchar-0123', 0.000000, 0.000000, 1600000000000);''' %(self.ts - 500))
+        sql = '''select * from regular_table_3 where ts = %d ;''' %(self.ts - 500)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,2,None)   
+        tdSql.checkData(0,3,None)   
+        tdSql.checkData(0,4,None)   
+        tdSql.checkData(0,5,None)   
+        tdSql.checkData(0,6,None)   
+        tdSql.checkData(0,7,None)
+        tdSql.checkData(0,8,None)   
+        tdSql.checkData(0,9,None)   
+        tdSql.checkData(0,10,None) 
+
+        tdSql.error('''insert into regular_table_3 values( %d , 2147483648, 9223372036854775807, 32767, 127, 0, 'binary+0', 'nchar+0', 0.000000, 0.000000, 1600000000000);''' %(self.ts + 500))
+        tdSql.error('''insert into regular_table_3 values( %d , 2147483647, 9223372036854775808, 32767, 127, 0, 'binary+0', 'nchar+0', 0.000000, 0.000000, 1600000000000);''' %(self.ts + 500))
+        tdSql.error('''insert into regular_table_3 values( %d , 2147483647, 9223372036854775807, 32768, 127, 0, 'binary+0', 'nchar+0', 0.000000, 0.000000, 1600000000000);''' %(self.ts + 500))
+        tdSql.error('''insert into regular_table_3 values( %d , 2147483647, 9223372036854775807, 32767, 128, 0, 'binary+0', 'nchar+0', 0.000000, 0.000000, 1600000000000);''' %(self.ts + 500))
+        tdSql.error('''insert into regular_table_3 values( %d , 2147483647, 9223372036854775807, 32767, 127, 0, 'binary+0123', 'nchar+0', 0.000000, 0.000000, 1600000000000);''' %(self.ts + 500))
+        tdSql.error('''insert into regular_table_3 values( %d , 2147483647, 9223372036854775807, 32767, 127, 0, 'binary+0', 'nchar+01234', 0.000000, 0.000000, 1600000000000);''' %(self.ts + 500))
+        
+        tdSql.execute('''insert into regular_table_3 values( %d , 2147483647, 9223372036854775807, 32767, 127, 0, 'binary+012', 'nchar+0123', 0.000000, 0.000000, 1600000000000);''' %(self.ts + 500))
+        sql = '''select * from regular_table_3 where ts = %d ;''' %(self.ts + 500)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,2,None)   
+        tdSql.checkData(0,3,None)   
+        tdSql.checkData(0,4,None)   
+        tdSql.checkData(0,5,None)   
+        tdSql.checkData(0,6,None)   
+        tdSql.checkData(0,7,None)
+        tdSql.checkData(0,8,None)   
+        tdSql.checkData(0,9,None)   
+        tdSql.checkData(0,10,None) 
+
+        tdLog.info("========== stable ==========") 
+        tdSql.execute('''insert into table_3 values( %d , NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL);''' %(self.ts - 200))
+        sql = '''select * from table_3 where ts = %d ;''' %(self.ts - 200)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,0)   
+        tdSql.checkData(0,2,0)   
+        tdSql.checkData(0,3,0)   
+        tdSql.checkData(0,4,0)   
+        tdSql.checkData(0,5,'False')   
+        tdSql.checkData(0,6,'binary-0')   
+        tdSql.checkData(0,7,'nchar-0')
+        tdSql.checkData(0,8,0)   
+        tdSql.checkData(0,9,0)   
+        tdSql.checkData(0,10,'2020-09-13 20:26:40.000') 
+        sql = '''select * from stable_1 where loc = 'table_3' and ts = %d ;''' %(self.ts - 200)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,0)   
+        tdSql.checkData(0,2,0)   
+        tdSql.checkData(0,3,0)   
+        tdSql.checkData(0,4,0)   
+        tdSql.checkData(0,5,'False')   
+        tdSql.checkData(0,6,'binary-0')   
+        tdSql.checkData(0,7,'nchar-0')
+        tdSql.checkData(0,8,0)   
+        tdSql.checkData(0,9,0)   
+        tdSql.checkData(0,10,'2020-09-13 20:26:40.000') 
+
+        tdSql.execute('''insert into table_3 values( %d , 0, 0, 0, 0, 0, 'binary+0', 'nchar+0', 0.000000, 0.000000, 1600000000000);''' %(self.ts + 200))
+        sql = '''select * from table_3 where ts = %d ;''' %(self.ts + 200)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,2,None)   
+        tdSql.checkData(0,3,None)   
+        tdSql.checkData(0,4,None)   
+        tdSql.checkData(0,5,None)   
+        tdSql.checkData(0,6,None)   
+        tdSql.checkData(0,7,None)
+        tdSql.checkData(0,8,None)   
+        tdSql.checkData(0,9,None)   
+        tdSql.checkData(0,10,None) 
+        sql = '''select * from stable_1 where loc = 'table_3' and ts = %d ;''' %(self.ts + 200)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,2,None)   
+        tdSql.checkData(0,3,None)   
+        tdSql.checkData(0,4,None)   
+        tdSql.checkData(0,5,None)   
+        tdSql.checkData(0,6,None)   
+        tdSql.checkData(0,7,None)
+        tdSql.checkData(0,8,None)   
+        tdSql.checkData(0,9,None)   
+        tdSql.checkData(0,10,None) 
+
+        tdSql.error('''insert into table_3 values( %d , -2147483648, -9223372036854775807, -32767, -127, 0, 'binary-0', 'nchar-0', 0.000000, 0.000000, 1600000000000);''' %(self.ts - 500))
+        tdSql.error('''insert into table_3 values( %d , -2147483647, -9223372036854775808, -32767, -127, 0, 'binary-0', 'nchar-0', 0.000000, 0.000000, 1600000000000);''' %(self.ts - 500))
+        tdSql.error('''insert into table_3 values( %d , -2147483647, -9223372036854775807, -32768, -127, 0, 'binary-0', 'nchar-0', 0.000000, 0.000000, 1600000000000);''' %(self.ts - 500))
+        tdSql.error('''insert into table_3 values( %d , -2147483647, -9223372036854775807, -32767, -128, 0, 'binary-0', 'nchar-0', 0.000000, 0.000000, 1600000000000);''' %(self.ts - 500))
+        tdSql.error('''insert into table_3 values( %d , -2147483647, -9223372036854775807, -32767, -127, 0, 'binary-0123', 'nchar-0', 0.000000, 0.000000, 1600000000000);''' %(self.ts - 500))
+        tdSql.error('''insert into table_3 values( %d , -2147483647, -9223372036854775807, -32767, -127, 0, 'binary-0', 'nchar-01234', 0.000000, 0.000000, 1600000000000);''' %(self.ts - 500))
+        
+        tdSql.execute('''insert into table_3 values( %d , -2147483647, -9223372036854775807, -32767, -127, 0, 'binary-012', 'nchar-0123', 0.000000, 0.000000, 1600000000000);''' %(self.ts - 500))
+        sql = '''select * from table_3 where ts = %d ;''' %(self.ts - 500)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,2,None)   
+        tdSql.checkData(0,3,None)   
+        tdSql.checkData(0,4,None)   
+        tdSql.checkData(0,5,None)   
+        tdSql.checkData(0,6,None)   
+        tdSql.checkData(0,7,None)
+        tdSql.checkData(0,8,None)   
+        tdSql.checkData(0,9,None)   
+        tdSql.checkData(0,10,None) 
+        sql = '''select * from stable_1 where loc = 'table_3' and ts = %d ;''' %(self.ts - 500)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,2,None)   
+        tdSql.checkData(0,3,None)   
+        tdSql.checkData(0,4,None)   
+        tdSql.checkData(0,5,None)   
+        tdSql.checkData(0,6,None)   
+        tdSql.checkData(0,7,None)
+        tdSql.checkData(0,8,None)   
+        tdSql.checkData(0,9,None)   
+        tdSql.checkData(0,10,None) 
+
+        tdSql.error('''insert into table_3 values( %d , 2147483648, 9223372036854775807, 32767, 127, 0, 'binary+0', 'nchar+0', 0.000000, 0.000000, 1600000000000);''' %(self.ts + 500))
+        tdSql.error('''insert into table_3 values( %d , 2147483647, 9223372036854775808, 32767, 127, 0, 'binary+0', 'nchar+0', 0.000000, 0.000000, 1600000000000);''' %(self.ts + 500))
+        tdSql.error('''insert into table_3 values( %d , 2147483647, 9223372036854775807, 32768, 127, 0, 'binary+0', 'nchar+0', 0.000000, 0.000000, 1600000000000);''' %(self.ts + 500))
+        tdSql.error('''insert into table_3 values( %d , 2147483647, 9223372036854775807, 32767, 128, 0, 'binary+0', 'nchar+0', 0.000000, 0.000000, 1600000000000);''' %(self.ts + 500))
+        tdSql.error('''insert into table_3 values( %d , 2147483647, 9223372036854775807, 32767, 127, 0, 'binary+0123', 'nchar+0', 0.000000, 0.000000, 1600000000000);''' %(self.ts + 500))
+        tdSql.error('''insert into table_3 values( %d , 2147483647, 9223372036854775807, 32767, 127, 0, 'binary+0', 'nchar+01234', 0.000000, 0.000000, 1600000000000);''' %(self.ts + 500))
+        
+        tdSql.execute('''insert into table_3 values( %d , 2147483647, 9223372036854775807, 32767, 127, 0, 'binary+012', 'nchar+0123', 0.000000, 0.000000, 1600000000000);''' %(self.ts + 500))
+        sql = '''select * from table_3 where ts = %d ;''' %(self.ts + 500)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,2,None)   
+        tdSql.checkData(0,3,None)   
+        tdSql.checkData(0,4,None)   
+        tdSql.checkData(0,5,None)   
+        tdSql.checkData(0,6,None)   
+        tdSql.checkData(0,7,None)
+        tdSql.checkData(0,8,None)   
+        tdSql.checkData(0,9,None)   
+        tdSql.checkData(0,10,None) 
+        sql = '''select * from stable_1 where loc = 'table_3' and ts = %d ;''' %(self.ts + 500)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,2,None)   
+        tdSql.checkData(0,3,None)   
+        tdSql.checkData(0,4,None)   
+        tdSql.checkData(0,5,None)   
+        tdSql.checkData(0,6,None)   
+        tdSql.checkData(0,7,None)
+        tdSql.checkData(0,8,None)   
+        tdSql.checkData(0,9,None)   
+        tdSql.checkData(0,10,None) 
+
+
+        tdLog.info("========== 4096 regular_table ==========") 
+        sql = '''insert into regular_table_4096_3 (ts , int_1,smallint_501 , tinyint_1001 , double_1501 , float_2001 , bool_2501 ,
+                bigint_3001 , nchar_3501 , binary_3801 , timestamp_4091 , col4095 )
+                values('2020-09-13 20:26:40.000' , 1 , 501 , 101 , 1501 , 2001 , 1 , 3001 , '3501' , '3801' ,'2020-09-13 20:26:44.090','1600000000000');'''
+        tdSql.execute(sql)
+        tdSql.query("select * from regular_table_4096_3 where ts ='2020-09-13 20:26:40.000';")
+        tdSql.checkCols(4096)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,501,None)   
+        tdSql.checkData(0,1001,None)   
+        tdSql.checkData(0,1501,None)   
+        tdSql.checkData(0,2001,None)   
+        tdSql.checkData(0,2501,None)   
+        tdSql.checkData(0,3001,None)
+        tdSql.checkData(0,3501,'NULL')   
+        tdSql.checkData(0,3801,'NULL')   
+        tdSql.checkData(0,4091,'2020-09-13 20:26:44.090') 
+        tdSql.checkData(0,4095,'1600000000000') 
+
+        sql = '''insert into regular_table_4096_3 (ts , int_1,smallint_501 , tinyint_1001 , double_1501 , float_2001 , bool_2501 ,
+                bigint_3001 , nchar_3501 , binary_3801 , timestamp_4091 , col4095 )
+                values('2020-09-10 20:26:40.000' , NULL , NULL , NULL , NULL , NULL , NULL , NULL , NULL , NULL , NULL , NULL);'''
+        tdSql.execute(sql)
+        tdSql.query("select * from regular_table_4096_3 where ts ='2020-09-10 20:26:40.000';")
+        tdSql.checkCols(4096)
+        tdSql.checkData(0,1,1)   
+        tdSql.checkData(0,501,501)   
+        tdSql.checkData(0,1001,101)   
+        tdSql.checkData(0,1501,1501)   
+        tdSql.checkData(0,2001,2001)   
+        tdSql.checkData(0,2501,'True')   
+        tdSql.checkData(0,3001,3001)
+        tdSql.checkData(0,3501,'3501')   
+        tdSql.checkData(0,3801,'3801')   
+        tdSql.checkData(0,4091,'2020-09-10 20:26:44.090') 
+        tdSql.checkData(0,4095,'1500000000000') 
+
+        tdLog.info("========== 4096 stable ==========") 
+        sql = '''insert into table_4096_3 (ts , int_1,smallint_501 , tinyint_1001 , double_1501 , float_2001 , bool_2501 ,
+                bigint_3001 , nchar_3501 , binary_3801 , timestamp_4091 , col4093 )
+                values('2020-09-13 20:26:40.000' , 1 , 501 , 101 , 1501 , 2001 , 1 , 3001 , '3501' , '3801' ,'2020-09-13 20:26:44.090','1600000000000');'''
+        tdSql.execute(sql)
+        tdSql.query("select * from table_4096_3 where ts ='2020-09-13 20:26:40.000';")
+        tdSql.checkCols(4094)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,501,None)   
+        tdSql.checkData(0,1001,None)   
+        tdSql.checkData(0,1501,None)   
+        tdSql.checkData(0,2001,None)   
+        tdSql.checkData(0,2501,None)   
+        tdSql.checkData(0,3001,None)
+        tdSql.checkData(0,3501,'NULL')   
+        tdSql.checkData(0,3801,'NULL')   
+        tdSql.checkData(0,4091,'2020-09-13 20:26:44.090') 
+        tdSql.checkData(0,4093,'1600000000000') 
+        tdSql.query("select * from stable_4096_3 where ts ='2020-09-13 20:26:40.000';")
+        tdSql.checkCols(4096)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,501,None)   
+        tdSql.checkData(0,1001,None)   
+        tdSql.checkData(0,1501,None)   
+        tdSql.checkData(0,2001,None)   
+        tdSql.checkData(0,2501,None)   
+        tdSql.checkData(0,3001,None)
+        tdSql.checkData(0,3501,'NULL')   
+        tdSql.checkData(0,3801,'NULL') 
+        tdSql.checkData(0,4091,'2020-09-13 20:26:44.090') 
+        tdSql.checkData(0,4093,'1600000000000') 
+
+        sql = '''insert into table_4096_3 (ts , int_1,smallint_501 , tinyint_1001 , double_1501 , float_2001 , bool_2501 ,
+                bigint_3001 , nchar_3501 , binary_3801 , timestamp_4091 , col4093 )
+                values('2020-09-10 20:26:40.000' , NULL , NULL , NULL , NULL , NULL , NULL , NULL , NULL , NULL , NULL , NULL);'''
+        tdSql.execute(sql)
+        tdSql.query("select * from table_4096_3 where ts ='2020-09-10 20:26:40.000';")
+        tdSql.checkCols(4094)
+        tdSql.checkData(0,1,1)   
+        tdSql.checkData(0,501,501)   
+        tdSql.checkData(0,1001,101)   
+        tdSql.checkData(0,1501,1501)   
+        tdSql.checkData(0,2001,2001)   
+        tdSql.checkData(0,2501,'True')   
+        tdSql.checkData(0,3001,3001)
+        tdSql.checkData(0,3501,'3501')   
+        tdSql.checkData(0,3801,'3801')   
+        tdSql.checkData(0,4091,'2020-09-10 20:26:44.090') 
+        tdSql.checkData(0,4093,'1500000000000') 
+        tdSql.query("select * from stable_4096_3 where ts ='2020-09-10 20:26:40.000';")
+        tdSql.checkCols(4096)
+        tdSql.checkData(0,1,1)   
+        tdSql.checkData(0,501,501)   
+        tdSql.checkData(0,1001,101)   
+        tdSql.checkData(0,1501,1501)   
+        tdSql.checkData(0,2001,2001)   
+        tdSql.checkData(0,2501,'True')   
+        tdSql.checkData(0,3001,3001)
+        tdSql.checkData(0,3501,'3501')   
+        tdSql.checkData(0,3801,'3801')   
+        tdSql.checkData(0,4091,'2020-09-10 20:26:44.090') 
+        tdSql.checkData(0,4093,'1500000000000')
+
+        endTime = time.time()
+        print("total time %ds" % (endTime - startTime))  
+
+
+    def stop(self):
+        tdSql.close()
+        tdLog.success("%s successfully executed" % __file__)
+
+
+tdCases.addWindows(__file__, TDTestCase())
+tdCases.addLinux(__file__, TDTestCase())
\ No newline at end of file
diff --git a/tests/pytest/import_merge/import_update_1.py b/tests/pytest/import_merge/import_update_1.py
new file mode 100644
index 0000000000000000000000000000000000000000..f3137033420f831eec25f75039beeefbf2803537
--- /dev/null
+++ b/tests/pytest/import_merge/import_update_1.py
@@ -0,0 +1,1913 @@
+###################################################################
+#           Copyright (c) 2016 by TAOS Technologies, Inc.
+#                     All rights reserved.
+#
+#  This file is proprietary and confidential to TAOS Technologies.
+#  No part of this file may be reproduced, stored, transmitted,
+#  disclosed or used in any form or by any means other than as
+#  expressly provided by the written permission from Jianhui Tao
+#
+###################################################################
+
+# -*- coding: utf-8 -*-
+
+import sys
+import taos
+from util.log import tdLog
+from util.cases import tdCases
+from util.sql import tdSql
+from util.dnodes import *
+import random
+import time
+
+
+class TDTestCase:
+    def init(self, conn, logSql):
+        tdLog.debug("start to execute %s" % __file__)
+        tdSql.init(conn.cursor(), logSql)
+
+        self.ts = 1600000000000
+        self.num = 50
+        self.num4096 = 5
+
+    def getBuildPath(self):
+        selfPath = os.path.dirname(os.path.realpath(__file__))
+
+        if ("community" in selfPath):
+            projPath = selfPath[:selfPath.find("community")]
+        else:
+            projPath = selfPath[:selfPath.find("tests")]
+
+        for root, dirs, files in os.walk(projPath):
+            if ("taosd" in files):
+                rootRealPath = os.path.dirname(os.path.realpath(root))
+                if ("packaging" not in rootRealPath):
+                    buildPath = root[:len(root)-len("/build/bin")]
+                    break
+        return buildPath
+
+    def run(self):
+        tdSql.prepare()   
+        # test case for https://jira.taosdata.com:18080/browse/TD-5062
+             
+        startTime = time.time() 
+
+        tdSql.execute('''drop database if exists test_updata_1 ;''')  
+        # update 0 不更新 ; update 1 覆盖更新 ;update 2 合并更新
+        tdLog.info("========== test database updata = 1 ==========") 
+        tdSql.execute('''create database test_updata_1 update 1 minrows 10 maxrows 200 ;''')   
+        tdSql.execute('''use test_updata_1;''')   
+        tdSql.execute('''create stable stable_1
+                    (ts timestamp , q_int int , q_bigint bigint , q_smallint smallint , q_tinyint tinyint, 
+                    q_bool bool , q_binary binary(10) , q_nchar nchar(10) , q_float float , q_double double , q_ts timestamp) 
+                    tags(loc nchar(20) , t_int int);''')
+        tdSql.execute('''create table table_1 using stable_1 tags('table_1' , '1' )''')
+        tdSql.execute('''create table table_2 using stable_1 tags('table_2' , '2' )''')
+        tdSql.execute('''create table table_3 using stable_1 tags('table_3' , '3' )''')
+
+        #regular table
+        tdSql.execute('''create table regular_table_1
+                    (ts timestamp , q_int int , q_bigint bigint , q_smallint smallint , q_tinyint tinyint, 
+                    q_bool bool , q_binary binary(10) , q_nchar nchar(10) , q_float float , q_double double , q_ts timestamp) ;''')
+        tdSql.execute('''create table regular_table_2
+                    (ts timestamp , q_int int , q_bigint bigint , q_smallint smallint , q_tinyint tinyint, 
+                    q_bool bool , q_binary binary(10) , q_nchar nchar(10) , q_float float , q_double double , q_ts timestamp) ;''')
+        tdSql.execute('''create table regular_table_3
+                    (ts timestamp , q_int int , q_bigint bigint , q_smallint smallint , q_tinyint tinyint, 
+                    q_bool bool , q_binary binary(10) , q_nchar nchar(10) , q_float float , q_double double , q_ts timestamp) ;''')
+               
+
+        tdLog.info("========== test1.1 : insert data , check data==========")   
+        tdLog.info("========== regular_table ==========") 
+        tdSql.execute('''insert into regular_table_1 values( %d , 0, 0, 0, 0, 0, 'binary-0', 'nchar-0', 0.000000, 0.000000, 1600000000000);''' %(self.ts - 200))
+        sql = '''select * from regular_table_1 where ts = %d ;''' %(self.ts - 200)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,0)   
+        tdSql.checkData(0,2,0)   
+        tdSql.checkData(0,3,0)   
+        tdSql.checkData(0,4,0)   
+        tdSql.checkData(0,5,'False')   
+        tdSql.checkData(0,6,'binary-0')   
+        tdSql.checkData(0,7,'nchar-0')
+        tdSql.checkData(0,8,0)   
+        tdSql.checkData(0,9,0)   
+        tdSql.checkData(0,10,'2020-09-13 20:26:40.000') 
+
+        tdSql.execute('''insert into regular_table_1 values( %d , NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL);''' %(self.ts + 200))
+        sql = '''select * from regular_table_1 where ts = %d ;''' %(self.ts + 200)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,2,None)   
+        tdSql.checkData(0,3,None)   
+        tdSql.checkData(0,4,None)   
+        tdSql.checkData(0,5,None)   
+        tdSql.checkData(0,6,None)   
+        tdSql.checkData(0,7,None)
+        tdSql.checkData(0,8,None)   
+        tdSql.checkData(0,9,None)   
+        tdSql.checkData(0,10,None) 
+
+        tdSql.execute('''insert into regular_table_1 values( %d , NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL);''' %(self.ts - 500))
+        sql = '''select * from regular_table_1 where ts = %d ;''' %(self.ts - 500)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,2,None)   
+        tdSql.checkData(0,3,None)   
+        tdSql.checkData(0,4,None)   
+        tdSql.checkData(0,5,None)   
+        tdSql.checkData(0,6,None)   
+        tdSql.checkData(0,7,None)
+        tdSql.checkData(0,8,None)   
+        tdSql.checkData(0,9,None)   
+        tdSql.checkData(0,10,None) 
+
+        tdSql.execute('''insert into regular_table_1 values( %d , NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL);''' %(self.ts + 500))
+        sql = '''select * from regular_table_1 where ts = %d ;''' %(self.ts + 500)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,2,None)   
+        tdSql.checkData(0,3,None)   
+        tdSql.checkData(0,4,None)   
+        tdSql.checkData(0,5,None)   
+        tdSql.checkData(0,6,None)   
+        tdSql.checkData(0,7,None)
+        tdSql.checkData(0,8,None)   
+        tdSql.checkData(0,9,None)   
+        tdSql.checkData(0,10,None) 
+
+        tdLog.info("========== stable ==========") 
+        tdSql.execute('''insert into table_1 values( %d , 0, 0, 0, 0, 0, 'binary-0', 'nchar-0', 0.000000, 0.000000, 1600000000000);''' %(self.ts - 200))
+        sql = '''select * from table_1 where ts = %d ;''' %(self.ts - 200)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,0)   
+        tdSql.checkData(0,2,0)   
+        tdSql.checkData(0,3,0)   
+        tdSql.checkData(0,4,0)   
+        tdSql.checkData(0,5,'False')   
+        tdSql.checkData(0,6,'binary-0')   
+        tdSql.checkData(0,7,'nchar-0')
+        tdSql.checkData(0,8,0)   
+        tdSql.checkData(0,9,0)   
+        tdSql.checkData(0,10,'2020-09-13 20:26:40.000') 
+        sql = '''select * from stable_1 where ts = %d ;''' %(self.ts - 200)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,0)   
+        tdSql.checkData(0,2,0)   
+        tdSql.checkData(0,3,0)   
+        tdSql.checkData(0,4,0)   
+        tdSql.checkData(0,5,'False')   
+        tdSql.checkData(0,6,'binary-0')   
+        tdSql.checkData(0,7,'nchar-0')
+        tdSql.checkData(0,8,0)   
+        tdSql.checkData(0,9,0)   
+        tdSql.checkData(0,10,'2020-09-13 20:26:40.000') 
+
+        tdSql.execute('''insert into table_1 values( %d , NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL);''' %(self.ts + 200))
+        sql = '''select * from table_1 where ts = %d ;''' %(self.ts + 200)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,2,None)   
+        tdSql.checkData(0,3,None)   
+        tdSql.checkData(0,4,None)   
+        tdSql.checkData(0,5,None)   
+        tdSql.checkData(0,6,None)   
+        tdSql.checkData(0,7,None)
+        tdSql.checkData(0,8,None)   
+        tdSql.checkData(0,9,None)   
+        tdSql.checkData(0,10,None) 
+        sql = '''select * from stable_1 where ts = %d ;''' %(self.ts + 200)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,2,None)   
+        tdSql.checkData(0,3,None)   
+        tdSql.checkData(0,4,None)   
+        tdSql.checkData(0,5,None)   
+        tdSql.checkData(0,6,None)   
+        tdSql.checkData(0,7,None)
+        tdSql.checkData(0,8,None)   
+        tdSql.checkData(0,9,None)   
+        tdSql.checkData(0,10,None)
+
+        tdSql.execute('''insert into table_1 values( %d , NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL);''' %(self.ts - 500))
+        sql = '''select * from table_1 where ts = %d ;''' %(self.ts - 500)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,2,None)   
+        tdSql.checkData(0,3,None)   
+        tdSql.checkData(0,4,None)   
+        tdSql.checkData(0,5,None)   
+        tdSql.checkData(0,6,None)   
+        tdSql.checkData(0,7,None)
+        tdSql.checkData(0,8,None)   
+        tdSql.checkData(0,9,None)   
+        tdSql.checkData(0,10,None) 
+        sql = '''select * from stable_1 where ts = %d ;''' %(self.ts - 500)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,2,None)   
+        tdSql.checkData(0,3,None)   
+        tdSql.checkData(0,4,None)   
+        tdSql.checkData(0,5,None)   
+        tdSql.checkData(0,6,None)   
+        tdSql.checkData(0,7,None)
+        tdSql.checkData(0,8,None)   
+        tdSql.checkData(0,9,None)   
+        tdSql.checkData(0,10,None) 
+
+        tdSql.execute('''insert into table_1 values( %d , NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL);''' %(self.ts + 500))
+        sql = '''select * from table_1 where ts = %d ;''' %(self.ts + 500)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,2,None)   
+        tdSql.checkData(0,3,None)   
+        tdSql.checkData(0,4,None)   
+        tdSql.checkData(0,5,None)   
+        tdSql.checkData(0,6,None)   
+        tdSql.checkData(0,7,None)
+        tdSql.checkData(0,8,None)   
+        tdSql.checkData(0,9,None)   
+        tdSql.checkData(0,10,None) 
+        sql = '''select * from stable_1 where ts = %d ;''' %(self.ts + 500)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,2,None)   
+        tdSql.checkData(0,3,None)   
+        tdSql.checkData(0,4,None)   
+        tdSql.checkData(0,5,None)   
+        tdSql.checkData(0,6,None)   
+        tdSql.checkData(0,7,None)
+        tdSql.checkData(0,8,None)   
+        tdSql.checkData(0,9,None)   
+        tdSql.checkData(0,10,None) 
+
+
+        tdLog.info("========== 4096 regular_table ==========") 
+        sql = "create table regular_table_4096_1 (ts timestamp, "
+        for i in range(500):
+            sql += "int_%d int, " % (i + 1)
+        for i in range(500,1000):
+            sql += "smallint_%d smallint, " % (i + 1)
+        for i in range(1000,1500):
+            sql += "tinyint_%d tinyint, " % (i + 1)
+        for i in range(1500,2000):
+            sql += "double_%d double, " % (i + 1)
+        for i in range(2000,2500):
+            sql += "float_%d float, " % (i + 1)
+        for i in range(2500,3000):
+            sql += "bool_%d bool, " % (i + 1)
+        for i in range(3000,3500):
+            sql += "bigint_%d bigint, " % (i + 1)
+        for i in range(3500,3800):
+            sql += "nchar_%d nchar(4), " % (i + 1)
+        for i in range(3800,4090):
+            sql += "binary_%d binary(10), " % (i + 1)
+        for i in range(4090,4094):
+            sql += "timestamp_%d timestamp, " % (i + 1)
+        sql += "col4095 binary(22))"  
+        tdLog.info(len(sql))      
+        tdSql.execute(sql)
+
+        for i in range(self.num4096):
+            sql = "insert into regular_table_4096_1 values(%d, "
+            for j in range(4090): 
+                str = "'%s', " % 'NULL'             
+                sql += str
+            for j in range(4090,4094):
+                str = "%s, " % (self.ts + j)                
+                sql += str
+            sql += "'%s')" % (self.ts + i)
+            tdSql.execute(sql % (self.ts + i))
+        tdSql.query('''select * from regular_table_4096_1 where ts = %d ;''' %(self.ts))
+        tdSql.checkCols(4096)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,501,None)   
+        tdSql.checkData(0,1001,None)   
+        tdSql.checkData(0,1501,None)   
+        tdSql.checkData(0,2001,None)   
+        tdSql.checkData(0,2501,None)   
+        tdSql.checkData(0,3001,None)
+        tdSql.checkData(0,3501,'NULL')   
+        tdSql.checkData(0,3801,'NULL')   
+        tdSql.checkData(0,4091,'2020-09-13 20:26:44.090') 
+        tdSql.checkData(0,4095,'1600000000000') 
+
+        sql = '''insert into regular_table_4096_1 (ts , int_1,smallint_501 , tinyint_1001 , double_1501 , float_2001 , bool_2501 ,
+                bigint_3001 , nchar_3501 , binary_3801 , timestamp_4091 , col4095 )
+                values('2020-09-10 20:26:40.000' , 1 , 501 , 101 , 1501 , 2001 , 1 , 3001 , '3501' , '3801' ,'2020-09-10 20:26:44.090','1500000000000');'''
+        tdSql.execute(sql)
+        tdSql.query("select * from regular_table_4096_1 where ts ='2020-09-10 20:26:40.000';")
+        tdSql.checkCols(4096)
+        tdSql.checkData(0,1,1)   
+        tdSql.checkData(0,501,501)   
+        tdSql.checkData(0,1001,101)   
+        tdSql.checkData(0,1501,1501)   
+        tdSql.checkData(0,2001,2001)   
+        tdSql.checkData(0,2501,'True')   
+        tdSql.checkData(0,3001,3001)
+        tdSql.checkData(0,3501,'3501')   
+        tdSql.checkData(0,3801,'3801')   
+        tdSql.checkData(0,4091,'2020-09-10 20:26:44.090') 
+        tdSql.checkData(0,4095,'1500000000000') 
+
+        tdLog.info("========== 4096 stable ==========") 
+        sql = "create stable stable_4096_1 (ts timestamp, "
+        for i in range(500):
+            sql += "int_%d int, " % (i + 1)
+        for i in range(500,1000):
+            sql += "smallint_%d smallint, " % (i + 1)
+        for i in range(1000,1500):
+            sql += "tinyint_%d tinyint, " % (i + 1)
+        for i in range(1500,2000):
+            sql += "double_%d double, " % (i + 1)
+        for i in range(2000,2500):
+            sql += "float_%d float, " % (i + 1)
+        for i in range(2500,3000):
+            sql += "bool_%d bool, " % (i + 1)
+        for i in range(3000,3500):
+            sql += "bigint_%d bigint, " % (i + 1)
+        for i in range(3500,3800):
+            sql += "nchar_%d nchar(4), " % (i + 1)
+        for i in range(3800,4090):
+            sql += "binary_%d binary(10), " % (i + 1)
+        for i in range(4090,4092):
+            sql += "timestamp_%d timestamp, " % (i + 1)
+        sql += " col4093 binary(22)) "  
+        sql += " tags (loc nchar(20),tag_1 int) "
+        tdLog.info(len(sql))      
+        tdSql.execute(sql)
+
+        sql = " create table table_4096_1 using stable_4096_1 tags ('table_4096_1',1); "
+        tdSql.execute(sql)
+
+        for i in range(self.num4096):
+            sql = "insert into table_4096_1 values(%d, "
+            for j in range(4090): 
+                str = "'%s', " % 'NULL'             
+                sql += str
+            for j in range(4090,4092):
+                str = "%s, " % (self.ts + j)                
+                sql += str
+            sql += "'%s')" % (self.ts + i)
+            tdSql.execute(sql % (self.ts + i))
+        tdSql.query('''select * from table_4096_1 where ts = %d ;''' %(self.ts))
+        tdSql.checkCols(4094)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,501,None)   
+        tdSql.checkData(0,1001,None)   
+        tdSql.checkData(0,1501,None)   
+        tdSql.checkData(0,2001,None)   
+        tdSql.checkData(0,2501,None)   
+        tdSql.checkData(0,3001,None)
+        tdSql.checkData(0,3501,'NULL')   
+        tdSql.checkData(0,3801,'NULL')   
+        tdSql.checkData(0,4091,'2020-09-13 20:26:44.090') 
+        tdSql.checkData(0,4093,'1600000000000')
+        tdSql.query('''select * from stable_4096_1 where ts = %d ;''' %(self.ts))
+        tdSql.checkCols(4096)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,501,None)   
+        tdSql.checkData(0,1001,None)   
+        tdSql.checkData(0,1501,None)   
+        tdSql.checkData(0,2001,None)   
+        tdSql.checkData(0,2501,None)   
+        tdSql.checkData(0,3001,None)
+        tdSql.checkData(0,3501,'NULL')   
+        tdSql.checkData(0,3801,'NULL')   
+        tdSql.checkData(0,4091,'2020-09-13 20:26:44.090') 
+        tdSql.checkData(0,4093,'1600000000000')
+
+        sql = '''insert into table_4096_1 (ts , int_1,smallint_501 , tinyint_1001 , double_1501 , float_2001 , bool_2501 ,
+                bigint_3001 , nchar_3501 , binary_3801 , timestamp_4091 , col4093 )
+                values('2020-09-10 20:26:40.000' , 1 , 501 , 101 , 1501 , 2001 , 1 , 3001 , '3501' , '3801' ,'2020-09-10 20:26:44.090','1500000000000');'''
+        tdSql.execute(sql)
+        tdSql.query("select * from table_4096_1 where ts ='2020-09-10 20:26:40.000';")
+        tdSql.checkCols(4094)
+        tdSql.checkData(0,1,1)   
+        tdSql.checkData(0,501,501)   
+        tdSql.checkData(0,1001,101)   
+        tdSql.checkData(0,1501,1501)   
+        tdSql.checkData(0,2001,2001)   
+        tdSql.checkData(0,2501,'True')   
+        tdSql.checkData(0,3001,3001)
+        tdSql.checkData(0,3501,'3501')   
+        tdSql.checkData(0,3801,'3801')   
+        tdSql.checkData(0,4091,'2020-09-10 20:26:44.090') 
+        tdSql.checkData(0,4093,'1500000000000') 
+        tdSql.query("select * from stable_4096_1 where ts ='2020-09-10 20:26:40.000';")
+        tdSql.checkCols(4096)
+        tdSql.checkData(0,1,1)   
+        tdSql.checkData(0,501,501)   
+        tdSql.checkData(0,1001,101)   
+        tdSql.checkData(0,1501,1501)   
+        tdSql.checkData(0,2001,2001)   
+        tdSql.checkData(0,2501,'True')   
+        tdSql.checkData(0,3001,3001)
+        tdSql.checkData(0,3501,'3501')   
+        tdSql.checkData(0,3801,'3801')   
+        tdSql.checkData(0,4091,'2020-09-10 20:26:44.090') 
+        tdSql.checkData(0,4093,'1500000000000') 
+
+        # minrows 10 maxrows 200
+        for i in range(self.num):        
+            tdSql.execute('''insert into regular_table_1 values(%d, %d, %d, %d, %d, 0, 'binary.%s', 'nchar.%s', %f, %f, %d)''' 
+                        % (self.ts -100 + i, i, i, i, i, i, i, i, i, self.ts -100 + i))
+            tdSql.execute('''insert into regular_table_1 values(%d, %d, %d, %d, %d, false, 'binary%s', 'nchar%s', %f, %f, %d)''' 
+                        % (self.ts + i, random.randint(-2147483647, 2147483647), 
+                        random.randint(-9223372036854775807, 9223372036854775807), random.randint(-32767, 32767),
+                        random.randint(-127, 127), random.randint(-100, 100), random.randint(-10000, 10000), 
+                        random.uniform(-100000,100000), random.uniform(-1000000000,1000000000), self.ts + i))
+
+            tdSql.execute('''insert into table_1 values(%d, %d, %d, %d, %d, 0, 'binary.%s', 'nchar.%s', %f, %f, %d)''' 
+                        % (self.ts -100 + i, i, i, i, i, i, i, i, i, self.ts -100 + i))
+            tdSql.execute('''insert into table_1 values(%d, %d, %d, %d, %d, false, 'binary%s', 'nchar%s', %f, %f, %d)''' 
+                        % (self.ts + i, random.randint(-2147483647, 2147483647), 
+                        random.randint(-9223372036854775807, 9223372036854775807), random.randint(-32767, 32767),
+                        random.randint(-127, 127), random.randint(-100, 100), random.randint(-10000, 10000), 
+                        random.uniform(-100000,100000), random.uniform(-1000000000,1000000000), self.ts + i))
+
+        tdLog.info("========== regular_table ==========") 
+        tdSql.execute('''insert into regular_table_1 values( %d , NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL);''' %(self.ts - 200))
+        sql = '''select * from regular_table_1 where ts = %d ;''' %(self.ts - 200)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,2,None)   
+        tdSql.checkData(0,3,None)   
+        tdSql.checkData(0,4,None)   
+        tdSql.checkData(0,5,None)   
+        tdSql.checkData(0,6,None)   
+        tdSql.checkData(0,7,None)
+        tdSql.checkData(0,8,None)   
+        tdSql.checkData(0,9,None)   
+        tdSql.checkData(0,10,None) 
+
+        tdSql.execute('''insert into regular_table_1 values( %d , 0, 0, 0, 0, 0, 'binary+0', 'nchar+0', 0.000000, 0.000000, 1600000000000);''' %(self.ts + 200))
+        sql = '''select * from regular_table_1 where ts = %d ;''' %(self.ts + 200)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,0)   
+        tdSql.checkData(0,2,0)   
+        tdSql.checkData(0,3,0)   
+        tdSql.checkData(0,4,0)   
+        tdSql.checkData(0,5,'False')   
+        tdSql.checkData(0,6,'binary+0')   
+        tdSql.checkData(0,7,'nchar+0')
+        tdSql.checkData(0,8,0)   
+        tdSql.checkData(0,9,0)  
+        tdSql.checkData(0,10,'2020-09-13 20:26:40.000') 
+
+        tdSql.error('''insert into regular_table_1 values( %d , -2147483648, -9223372036854775807, -32767, -127, 0, 'binary-0', 'nchar-0', 0.000000, 0.000000, 1600000000000);''' %(self.ts - 500))
+        tdSql.error('''insert into regular_table_1 values( %d , -2147483647, -9223372036854775808, -32767, -127, 0, 'binary-0', 'nchar-0', 0.000000, 0.000000, 1600000000000);''' %(self.ts - 500))
+        tdSql.error('''insert into regular_table_1 values( %d , -2147483647, -9223372036854775807, -32768, -127, 0, 'binary-0', 'nchar-0', 0.000000, 0.000000, 1600000000000);''' %(self.ts - 500))
+        tdSql.error('''insert into regular_table_1 values( %d , -2147483647, -9223372036854775807, -32767, -128, 0, 'binary-0', 'nchar-0', 0.000000, 0.000000, 1600000000000);''' %(self.ts - 500))
+        tdSql.error('''insert into regular_table_1 values( %d , -2147483647, -9223372036854775807, -32767, -127, 0, 'binary-0123', 'nchar-0', 0.000000, 0.000000, 1600000000000);''' %(self.ts - 500))
+        tdSql.error('''insert into regular_table_1 values( %d , -2147483647, -9223372036854775807, -32767, -127, 0, 'binary-0', 'nchar-01234', 0.000000, 0.000000, 1600000000000);''' %(self.ts - 500))
+        
+        tdSql.execute('''insert into regular_table_1 values( %d , -2147483647, -9223372036854775807, -32767, -127, 0, 'binary-012', 'nchar-0123', 0.000000, 0.000000, 1600000000000);''' %(self.ts - 500))
+        sql = '''select * from regular_table_1 where ts = %d ;''' %(self.ts - 500)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,-2147483647)   
+        tdSql.checkData(0,2,-9223372036854775807)   
+        tdSql.checkData(0,3,-32767)   
+        tdSql.checkData(0,4,-127)   
+        tdSql.checkData(0,5,'False')   
+        tdSql.checkData(0,6,'binary-012')   
+        tdSql.checkData(0,7,'nchar-0123')
+        tdSql.checkData(0,8,0)   
+        tdSql.checkData(0,9,0)   
+        tdSql.checkData(0,10,'2020-09-13 20:26:40.000') 
+
+        tdSql.error('''insert into regular_table_1 values( %d , 2147483648, 9223372036854775807, 32767, 127, 0, 'binary+0', 'nchar+0', 0.000000, 0.000000, 1600000000000);''' %(self.ts + 500))
+        tdSql.error('''insert into regular_table_1 values( %d , 2147483647, 9223372036854775808, 32767, 127, 0, 'binary+0', 'nchar+0', 0.000000, 0.000000, 1600000000000);''' %(self.ts + 500))
+        tdSql.error('''insert into regular_table_1 values( %d , 2147483647, 9223372036854775807, 32768, 127, 0, 'binary+0', 'nchar+0', 0.000000, 0.000000, 1600000000000);''' %(self.ts + 500))
+        tdSql.error('''insert into regular_table_1 values( %d , 2147483647, 9223372036854775807, 32767, 128, 0, 'binary+0', 'nchar+0', 0.000000, 0.000000, 1600000000000);''' %(self.ts + 500))
+        tdSql.error('''insert into regular_table_1 values( %d , 2147483647, 9223372036854775807, 32767, 127, 0, 'binary+0123', 'nchar+0', 0.000000, 0.000000, 1600000000000);''' %(self.ts + 500))
+        tdSql.error('''insert into regular_table_1 values( %d , 2147483647, 9223372036854775807, 32767, 127, 0, 'binary+0', 'nchar+01234', 0.000000, 0.000000, 1600000000000);''' %(self.ts + 500))
+        
+        tdSql.execute('''insert into regular_table_1 values( %d , 2147483647, 9223372036854775807, 32767, 127, 0, 'binary+012', 'nchar+0123', 0.000000, 0.000000, 1600000000000);''' %(self.ts + 500))
+        sql = '''select * from regular_table_1 where ts = %d ;''' %(self.ts + 500)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,2147483647)   
+        tdSql.checkData(0,2,9223372036854775807)   
+        tdSql.checkData(0,3,32767)   
+        tdSql.checkData(0,4,127)   
+        tdSql.checkData(0,5,'False')   
+        tdSql.checkData(0,6,'binary+012')   
+        tdSql.checkData(0,7,'nchar+0123')
+        tdSql.checkData(0,8,0)   
+        tdSql.checkData(0,9,0)   
+        tdSql.checkData(0,10,'2020-09-13 20:26:40.000')  
+
+        tdLog.info("========== stable ==========") 
+        tdSql.execute('''insert into table_1 values( %d , NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL);''' %(self.ts - 200))
+        sql = '''select * from table_1 where ts = %d ;''' %(self.ts - 200)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,2,None)   
+        tdSql.checkData(0,3,None)   
+        tdSql.checkData(0,4,None)   
+        tdSql.checkData(0,5,None)   
+        tdSql.checkData(0,6,None)   
+        tdSql.checkData(0,7,None)
+        tdSql.checkData(0,8,None)   
+        tdSql.checkData(0,9,None)   
+        tdSql.checkData(0,10,None)
+        sql = '''select * from stable_1 where ts = %d ;''' %(self.ts - 200)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,2,None)   
+        tdSql.checkData(0,3,None)   
+        tdSql.checkData(0,4,None)   
+        tdSql.checkData(0,5,None)   
+        tdSql.checkData(0,6,None)   
+        tdSql.checkData(0,7,None)
+        tdSql.checkData(0,8,None)   
+        tdSql.checkData(0,9,None)   
+        tdSql.checkData(0,10,None)
+
+        tdSql.execute('''insert into table_1 values( %d , 0, 0, 0, 0, 0, 'binary+0', 'nchar+0', 0.000000, 0.000000, 1600000000000);''' %(self.ts + 200))
+        sql = '''select * from table_1 where ts = %d ;''' %(self.ts + 200)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,0)   
+        tdSql.checkData(0,2,0)   
+        tdSql.checkData(0,3,0)   
+        tdSql.checkData(0,4,0)   
+        tdSql.checkData(0,5,'False')   
+        tdSql.checkData(0,6,'binary+0')   
+        tdSql.checkData(0,7,'nchar+0')
+        tdSql.checkData(0,8,0)   
+        tdSql.checkData(0,9,0)  
+        tdSql.checkData(0,10,'2020-09-13 20:26:40.000') 
+        sql = '''select * from stable_1 where ts = %d ;''' %(self.ts + 200)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,0)   
+        tdSql.checkData(0,2,0)   
+        tdSql.checkData(0,3,0)   
+        tdSql.checkData(0,4,0)   
+        tdSql.checkData(0,5,'False')   
+        tdSql.checkData(0,6,'binary+0')   
+        tdSql.checkData(0,7,'nchar+0')
+        tdSql.checkData(0,8,0)   
+        tdSql.checkData(0,9,0)  
+        tdSql.checkData(0,10,'2020-09-13 20:26:40.000') 
+
+        tdSql.error('''insert into table_1 values( %d , -2147483648, -9223372036854775807, -32767, -127, 0, 'binary-0', 'nchar-0', 0.000000, 0.000000, 1600000000000);''' %(self.ts - 500))
+        tdSql.error('''insert into table_1 values( %d , -2147483647, -9223372036854775808, -32767, -127, 0, 'binary-0', 'nchar-0', 0.000000, 0.000000, 1600000000000);''' %(self.ts - 500))
+        tdSql.error('''insert into table_1 values( %d , -2147483647, -9223372036854775807, -32768, -127, 0, 'binary-0', 'nchar-0', 0.000000, 0.000000, 1600000000000);''' %(self.ts - 500))
+        tdSql.error('''insert into table_1 values( %d , -2147483647, -9223372036854775807, -32767, -128, 0, 'binary-0', 'nchar-0', 0.000000, 0.000000, 1600000000000);''' %(self.ts - 500))
+        tdSql.error('''insert into table_1 values( %d , -2147483647, -9223372036854775807, -32767, -127, 0, 'binary-0123', 'nchar-0', 0.000000, 0.000000, 1600000000000);''' %(self.ts - 500))
+        tdSql.error('''insert into table_1 values( %d , -2147483647, -9223372036854775807, -32767, -127, 0, 'binary-0', 'nchar-01234', 0.000000, 0.000000, 1600000000000);''' %(self.ts - 500))
+        
+        tdSql.execute('''insert into table_1 values( %d , -2147483647, -9223372036854775807, -32767, -127, 0, 'binary-012', 'nchar-0123', 0.000000, 0.000000, 1600000000000);''' %(self.ts - 500))
+        sql = '''select * from table_1 where ts = %d ;''' %(self.ts - 500)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,-2147483647)   
+        tdSql.checkData(0,2,-9223372036854775807)   
+        tdSql.checkData(0,3,-32767)   
+        tdSql.checkData(0,4,-127)   
+        tdSql.checkData(0,5,'False')   
+        tdSql.checkData(0,6,'binary-012')   
+        tdSql.checkData(0,7,'nchar-0123')
+        tdSql.checkData(0,8,0)   
+        tdSql.checkData(0,9,0)   
+        tdSql.checkData(0,10,'2020-09-13 20:26:40.000') 
+        sql = '''select * from stable_1 where ts = %d ;''' %(self.ts - 500)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,-2147483647)   
+        tdSql.checkData(0,2,-9223372036854775807)   
+        tdSql.checkData(0,3,-32767)   
+        tdSql.checkData(0,4,-127)   
+        tdSql.checkData(0,5,'False')   
+        tdSql.checkData(0,6,'binary-012')   
+        tdSql.checkData(0,7,'nchar-0123')
+        tdSql.checkData(0,8,0)   
+        tdSql.checkData(0,9,0)   
+        tdSql.checkData(0,10,'2020-09-13 20:26:40.000') 
+
+        tdSql.error('''insert into table_1 values( %d , 2147483648, 9223372036854775807, 32767, 127, 0, 'binary+0', 'nchar+0', 0.000000, 0.000000, 1600000000000);''' %(self.ts + 500))
+        tdSql.error('''insert into table_1 values( %d , 2147483647, 9223372036854775808, 32767, 127, 0, 'binary+0', 'nchar+0', 0.000000, 0.000000, 1600000000000);''' %(self.ts + 500))
+        tdSql.error('''insert into table_1 values( %d , 2147483647, 9223372036854775807, 32768, 127, 0, 'binary+0', 'nchar+0', 0.000000, 0.000000, 1600000000000);''' %(self.ts + 500))
+        tdSql.error('''insert into table_1 values( %d , 2147483647, 9223372036854775807, 32767, 128, 0, 'binary+0', 'nchar+0', 0.000000, 0.000000, 1600000000000);''' %(self.ts + 500))
+        tdSql.error('''insert into table_1 values( %d , 2147483647, 9223372036854775807, 32767, 127, 0, 'binary+0123', 'nchar+0', 0.000000, 0.000000, 1600000000000);''' %(self.ts + 500))
+        tdSql.error('''insert into table_1 values( %d , 2147483647, 9223372036854775807, 32767, 127, 0, 'binary+0', 'nchar+01234', 0.000000, 0.000000, 1600000000000);''' %(self.ts + 500))
+        
+        tdSql.execute('''insert into table_1 values( %d , 2147483647, 9223372036854775807, 32767, 127, 0, 'binary+012', 'nchar+0123', 0.000000, 0.000000, 1600000000000);''' %(self.ts + 500))
+        sql = '''select * from table_1 where ts = %d ;''' %(self.ts + 500)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,2147483647)   
+        tdSql.checkData(0,2,9223372036854775807)   
+        tdSql.checkData(0,3,32767)   
+        tdSql.checkData(0,4,127)   
+        tdSql.checkData(0,5,'False')   
+        tdSql.checkData(0,6,'binary+012')   
+        tdSql.checkData(0,7,'nchar+0123')
+        tdSql.checkData(0,8,0)   
+        tdSql.checkData(0,9,0)   
+        tdSql.checkData(0,10,'2020-09-13 20:26:40.000')  
+        sql = '''select * from stable_1 where ts = %d ;''' %(self.ts + 500)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,2147483647)   
+        tdSql.checkData(0,2,9223372036854775807)   
+        tdSql.checkData(0,3,32767)   
+        tdSql.checkData(0,4,127)   
+        tdSql.checkData(0,5,'False')   
+        tdSql.checkData(0,6,'binary+012')   
+        tdSql.checkData(0,7,'nchar+0123')
+        tdSql.checkData(0,8,0)   
+        tdSql.checkData(0,9,0)   
+        tdSql.checkData(0,10,'2020-09-13 20:26:40.000')  
+
+        tdLog.info("========== 4096 regular_table ==========") 
+        sql = '''insert into regular_table_4096_1 (ts , int_1,smallint_501 , tinyint_1001 , double_1501 , float_2001 , bool_2501 ,
+                bigint_3001 , nchar_3501 , binary_3801 , timestamp_4091 , col4095 )
+                values('2020-09-13 20:26:40.000' , 1 , 501 , 101 , 1501 , 2001 , 1 , 3001 , '3501' , '3801' ,'2020-09-13 20:26:44.090','1600000000000');'''
+        tdSql.execute(sql)
+        tdSql.query("select * from regular_table_4096_1 where ts ='2020-09-13 20:26:40.000';")
+        tdSql.checkCols(4096)
+        tdSql.checkData(0,1,1)   
+        tdSql.checkData(0,501,501)   
+        tdSql.checkData(0,1001,101)   
+        tdSql.checkData(0,1501,1501)   
+        tdSql.checkData(0,2001,2001)   
+        tdSql.checkData(0,2501,'True')   
+        tdSql.checkData(0,3001,3001)
+        tdSql.checkData(0,3501,'3501')   
+        tdSql.checkData(0,3801,'3801')   
+        tdSql.checkData(0,4091,'2020-09-10 20:26:44.090')
+        tdSql.checkData(0,4095,'1600000000000')
+
+        sql = '''insert into regular_table_4096_1 (ts , int_1,smallint_501 , tinyint_1001 , double_1501 , float_2001 , bool_2501 ,
+                bigint_3001 , nchar_3501 , binary_3801 , timestamp_4091 , col4095 )
+                values('2020-09-10 20:26:40.000' , NULL , NULL , NULL , NULL , NULL , NULL , NULL , NULL , NULL , NULL , NULL);'''
+        tdSql.execute(sql)
+        tdSql.query("select * from regular_table_4096_1 where ts ='2020-09-10 20:26:40.000';")
+        tdSql.checkCols(4096)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,501,None)   
+        tdSql.checkData(0,1001,None)   
+        tdSql.checkData(0,1501,None)   
+        tdSql.checkData(0,2001,None)   
+        tdSql.checkData(0,2501,None)   
+        tdSql.checkData(0,3001,None)
+        tdSql.checkData(0,3501,None)   
+        tdSql.checkData(0,3801,None)  
+        tdSql.checkData(0,4091,None) 
+        tdSql.checkData(0,4095,None) 
+
+        tdLog.info("========== 4096 stable ==========") 
+        sql = '''insert into table_4096_1 (ts , int_1,smallint_501 , tinyint_1001 , double_1501 , float_2001 , bool_2501 ,
+                bigint_3001 , nchar_3501 , binary_3801 , timestamp_4091 , col4093 )
+                values('2020-09-13 20:26:40.000' , 1 , 501 , 101 , 1501 , 2001 , 1 , 3001 , '3501' , '3801' ,'2020-09-13 20:26:44.090','1600000000000');'''
+        tdSql.execute(sql)
+        tdSql.query("select * from table_4096_1 where ts ='2020-09-13 20:26:40.000';")
+        tdSql.checkCols(4094)
+        tdSql.checkData(0,1,1)   
+        tdSql.checkData(0,501,501)   
+        tdSql.checkData(0,1001,101)   
+        tdSql.checkData(0,1501,1501)   
+        tdSql.checkData(0,2001,2001)   
+        tdSql.checkData(0,2501,'True')   
+        tdSql.checkData(0,3001,3001)
+        tdSql.checkData(0,3501,'3501')   
+        tdSql.checkData(0,3801,'3801')   
+        tdSql.checkData(0,4091,'2020-09-10 20:26:44.090')
+        tdSql.checkData(0,4093,'1600000000000')
+        tdSql.query("select * from stable_4096_1 where ts ='2020-09-13 20:26:40.000';")
+        tdSql.checkCols(4096)
+        tdSql.checkData(0,1,1)   
+        tdSql.checkData(0,501,501)   
+        tdSql.checkData(0,1001,101)   
+        tdSql.checkData(0,1501,1501)   
+        tdSql.checkData(0,2001,2001)   
+        tdSql.checkData(0,2501,'True')   
+        tdSql.checkData(0,3001,3001)
+        tdSql.checkData(0,3501,'3501')   
+        tdSql.checkData(0,3801,'3801')   
+        tdSql.checkData(0,4091,'2020-09-10 20:26:44.090') 
+        tdSql.checkData(0,4093,'1600000000000')
+
+        sql = '''insert into table_4096_1 (ts , int_1,smallint_501 , tinyint_1001 , double_1501 , float_2001 , bool_2501 ,
+                bigint_3001 , nchar_3501 , binary_3801 , timestamp_4091 , col4093 )
+                values('2020-09-10 20:26:40.000' , NULL , NULL , NULL , NULL , NULL , NULL , NULL , NULL , NULL , NULL , NULL);'''
+        tdSql.execute(sql)
+        tdSql.query("select * from table_4096_1 where ts ='2020-09-10 20:26:40.000';")
+        tdSql.checkCols(4094)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,501,None)   
+        tdSql.checkData(0,1001,None)   
+        tdSql.checkData(0,1501,None)   
+        tdSql.checkData(0,2001,None)   
+        tdSql.checkData(0,2501,None)   
+        tdSql.checkData(0,3001,None)
+        tdSql.checkData(0,3501,None)   
+        tdSql.checkData(0,3801,None)  
+        tdSql.checkData(0,4091,None) 
+        tdSql.checkData(0,4093,None) 
+        tdSql.query("select * from stable_4096_1 where ts ='2020-09-10 20:26:40.000';")
+        tdSql.checkCols(4096)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,501,None)   
+        tdSql.checkData(0,1001,None)   
+        tdSql.checkData(0,1501,None)   
+        tdSql.checkData(0,2001,None)   
+        tdSql.checkData(0,2501,None)   
+        tdSql.checkData(0,3001,None)
+        tdSql.checkData(0,3501,None)   
+        tdSql.checkData(0,3801,None)  
+        tdSql.checkData(0,4091,None) 
+        tdSql.checkData(0,4093,None) 
+        
+
+        tdLog.info("========== test1.2 : insert data , taosdemo force data dropping disk , check data==========")
+        tdLog.info("========== regular_table ==========") 
+        tdSql.execute('''insert into regular_table_2 values( %d , 0, 0, 0, 0, 0, 'binary-0', 'nchar-0', 0.000000, 0.000000, 1600000000000);''' %(self.ts - 200))
+        sql = '''select * from regular_table_2 where ts = %d ;''' %(self.ts - 200)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,0)   
+        tdSql.checkData(0,2,0)   
+        tdSql.checkData(0,3,0)   
+        tdSql.checkData(0,4,0)   
+        tdSql.checkData(0,5,'False')   
+        tdSql.checkData(0,6,'binary-0')   
+        tdSql.checkData(0,7,'nchar-0')
+        tdSql.checkData(0,8,0)   
+        tdSql.checkData(0,9,0)   
+        tdSql.checkData(0,10,'2020-09-13 20:26:40.000') 
+
+        tdSql.execute('''insert into regular_table_2 values( %d , NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL);''' %(self.ts + 200))
+        sql = '''select * from regular_table_2 where ts = %d ;''' %(self.ts + 200)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,2,None)   
+        tdSql.checkData(0,3,None)   
+        tdSql.checkData(0,4,None)   
+        tdSql.checkData(0,5,None)   
+        tdSql.checkData(0,6,None)   
+        tdSql.checkData(0,7,None)
+        tdSql.checkData(0,8,None)   
+        tdSql.checkData(0,9,None)   
+        tdSql.checkData(0,10,None) 
+
+        tdSql.execute('''insert into regular_table_2 values( %d , NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL);''' %(self.ts - 500))
+        sql = '''select * from regular_table_2 where ts = %d ;''' %(self.ts - 500)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,2,None)   
+        tdSql.checkData(0,3,None)   
+        tdSql.checkData(0,4,None)   
+        tdSql.checkData(0,5,None)   
+        tdSql.checkData(0,6,None)   
+        tdSql.checkData(0,7,None)
+        tdSql.checkData(0,8,None)   
+        tdSql.checkData(0,9,None)   
+        tdSql.checkData(0,10,None) 
+
+        tdSql.execute('''insert into regular_table_2 values( %d , NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL);''' %(self.ts + 500))
+        sql = '''select * from regular_table_2 where ts = %d ;''' %(self.ts + 500)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,2,None)   
+        tdSql.checkData(0,3,None)   
+        tdSql.checkData(0,4,None)   
+        tdSql.checkData(0,5,None)   
+        tdSql.checkData(0,6,None)   
+        tdSql.checkData(0,7,None)
+        tdSql.checkData(0,8,None)   
+        tdSql.checkData(0,9,None)   
+        tdSql.checkData(0,10,None) 
+
+
+        tdLog.info("========== stable ==========") 
+        tdSql.execute('''insert into table_2 values( %d , 0, 0, 0, 0, 0, 'binary-0', 'nchar-0', 0.000000, 0.000000, 1600000000000);''' %(self.ts - 200))
+        sql = '''select * from table_2 where ts = %d ;''' %(self.ts - 200)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,0)   
+        tdSql.checkData(0,2,0)   
+        tdSql.checkData(0,3,0)   
+        tdSql.checkData(0,4,0)   
+        tdSql.checkData(0,5,'False')   
+        tdSql.checkData(0,6,'binary-0')   
+        tdSql.checkData(0,7,'nchar-0')
+        tdSql.checkData(0,8,0)   
+        tdSql.checkData(0,9,0)   
+        tdSql.checkData(0,10,'2020-09-13 20:26:40.000') 
+        sql = '''select * from stable_1 where loc = 'table_2' and ts = %d ;''' %(self.ts - 200)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,0)   
+        tdSql.checkData(0,2,0)   
+        tdSql.checkData(0,3,0)   
+        tdSql.checkData(0,4,0)   
+        tdSql.checkData(0,5,'False')   
+        tdSql.checkData(0,6,'binary-0')   
+        tdSql.checkData(0,7,'nchar-0')
+        tdSql.checkData(0,8,0)   
+        tdSql.checkData(0,9,0)   
+        tdSql.checkData(0,10,'2020-09-13 20:26:40.000') 
+
+        tdSql.execute('''insert into table_2 values( %d , NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL);''' %(self.ts + 200))
+        sql = '''select * from table_2 where ts = %d ;''' %(self.ts + 200)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,2,None)   
+        tdSql.checkData(0,3,None)   
+        tdSql.checkData(0,4,None)   
+        tdSql.checkData(0,5,None)   
+        tdSql.checkData(0,6,None)   
+        tdSql.checkData(0,7,None)
+        tdSql.checkData(0,8,None)   
+        tdSql.checkData(0,9,None)   
+        tdSql.checkData(0,10,None) 
+        sql = '''select * from stable_1 where loc = 'table_2' and ts = %d ;''' %(self.ts + 200)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,2,None)   
+        tdSql.checkData(0,3,None)   
+        tdSql.checkData(0,4,None)   
+        tdSql.checkData(0,5,None)   
+        tdSql.checkData(0,6,None)   
+        tdSql.checkData(0,7,None)
+        tdSql.checkData(0,8,None)   
+        tdSql.checkData(0,9,None)   
+        tdSql.checkData(0,10,None) 
+
+        tdSql.execute('''insert into table_2 values( %d , NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL);''' %(self.ts - 500))
+        sql = '''select * from table_2 where ts = %d ;''' %(self.ts - 500)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,2,None)   
+        tdSql.checkData(0,3,None)   
+        tdSql.checkData(0,4,None)   
+        tdSql.checkData(0,5,None)   
+        tdSql.checkData(0,6,None)   
+        tdSql.checkData(0,7,None)
+        tdSql.checkData(0,8,None)   
+        tdSql.checkData(0,9,None)   
+        tdSql.checkData(0,10,None) 
+        sql = '''select * from stable_1 where loc = 'table_2' and ts = %d ;''' %(self.ts - 500)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,2,None)   
+        tdSql.checkData(0,3,None)   
+        tdSql.checkData(0,4,None)   
+        tdSql.checkData(0,5,None)   
+        tdSql.checkData(0,6,None)   
+        tdSql.checkData(0,7,None)
+        tdSql.checkData(0,8,None)   
+        tdSql.checkData(0,9,None)   
+        tdSql.checkData(0,10,None) 
+
+        tdSql.execute('''insert into table_2 values( %d , NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL);''' %(self.ts + 500))
+        sql = '''select * from table_2 where ts = %d ;''' %(self.ts + 500)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,2,None)   
+        tdSql.checkData(0,3,None)   
+        tdSql.checkData(0,4,None)   
+        tdSql.checkData(0,5,None)   
+        tdSql.checkData(0,6,None)   
+        tdSql.checkData(0,7,None)
+        tdSql.checkData(0,8,None)   
+        tdSql.checkData(0,9,None)   
+        tdSql.checkData(0,10,None) 
+        sql = '''select * from stable_1 where loc = 'table_2' and ts = %d ;''' %(self.ts + 500)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,2,None)   
+        tdSql.checkData(0,3,None)   
+        tdSql.checkData(0,4,None)   
+        tdSql.checkData(0,5,None)   
+        tdSql.checkData(0,6,None)   
+        tdSql.checkData(0,7,None)
+        tdSql.checkData(0,8,None)   
+        tdSql.checkData(0,9,None)   
+        tdSql.checkData(0,10,None) 
+
+
+        tdLog.info("========== 4096 regular_table ==========") 
+        sql = "create table regular_table_4096_2 (ts timestamp, "
+        for i in range(500):
+            sql += "int_%d int, " % (i + 1)
+        for i in range(500,1000):
+            sql += "smallint_%d smallint, " % (i + 1)
+        for i in range(1000,1500):
+            sql += "tinyint_%d tinyint, " % (i + 1)
+        for i in range(1500,2000):
+            sql += "double_%d double, " % (i + 1)
+        for i in range(2000,2500):
+            sql += "float_%d float, " % (i + 1)
+        for i in range(2500,3000):
+            sql += "bool_%d bool, " % (i + 1)
+        for i in range(3000,3500):
+            sql += "bigint_%d bigint, " % (i + 1)
+        for i in range(3500,3800):
+            sql += "nchar_%d nchar(4), " % (i + 1)
+        for i in range(3800,4090):
+            sql += "binary_%d binary(10), " % (i + 1)
+        for i in range(4090,4094):
+            sql += "timestamp_%d timestamp, " % (i + 1)
+        sql += "col4095 binary(22))"  
+        tdLog.info(len(sql))      
+        tdSql.execute(sql)
+
+        for i in range(self.num4096):
+            sql = "insert into regular_table_4096_2 values(%d, "
+            for j in range(4090): 
+                str = "'%s', " % 'NULL'             
+                sql += str
+            for j in range(4090,4094):
+                str = "%s, " % (self.ts + j)                
+                sql += str
+            sql += "'%s')" % (self.ts + i)
+            tdSql.execute(sql % (self.ts + i))
+        tdSql.query('''select * from regular_table_4096_2 where ts = %d ;''' %(self.ts))
+        tdSql.checkCols(4096)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,501,None)   
+        tdSql.checkData(0,1001,None)   
+        tdSql.checkData(0,1501,None)   
+        tdSql.checkData(0,2001,None)   
+        tdSql.checkData(0,2501,None)   
+        tdSql.checkData(0,3001,None)
+        tdSql.checkData(0,3501,'NULL')   
+        tdSql.checkData(0,3801,'NULL')   
+        tdSql.checkData(0,4091,'2020-09-13 20:26:44.090') 
+        tdSql.checkData(0,4095,'1600000000000') 
+
+        sql = '''insert into regular_table_4096_2 (ts , int_1,smallint_501 , tinyint_1001 , double_1501 , float_2001 , bool_2501 ,
+                bigint_3001 , nchar_3501 , binary_3801 , timestamp_4091 , col4095 )
+                values('2020-09-10 20:26:40.000' , 1 , 501 , 101 , 1501 , 2001 , 1 , 3001 , '3501' , '3801' ,'2020-09-10 20:26:44.090','1500000000000');'''
+        tdSql.execute(sql)
+        tdSql.query("select * from regular_table_4096_2 where ts ='2020-09-10 20:26:40.000';")
+        tdSql.checkCols(4096)
+        tdSql.checkData(0,1,1)   
+        tdSql.checkData(0,501,501)   
+        tdSql.checkData(0,1001,101)   
+        tdSql.checkData(0,1501,1501)   
+        tdSql.checkData(0,2001,2001)   
+        tdSql.checkData(0,2501,'True')   
+        tdSql.checkData(0,3001,3001)
+        tdSql.checkData(0,3501,'3501')   
+        tdSql.checkData(0,3801,'3801')   
+        tdSql.checkData(0,4091,'2020-09-10 20:26:44.090') 
+        tdSql.checkData(0,4095,'1500000000000') 
+
+        tdLog.info("========== 4096 stable ==========") 
+        sql = "create stable stable_4096_2 (ts timestamp, "
+        for i in range(500):
+            sql += "int_%d int, " % (i + 1)
+        for i in range(500,1000):
+            sql += "smallint_%d smallint, " % (i + 1)
+        for i in range(1000,1500):
+            sql += "tinyint_%d tinyint, " % (i + 1)
+        for i in range(1500,2000):
+            sql += "double_%d double, " % (i + 1)
+        for i in range(2000,2500):
+            sql += "float_%d float, " % (i + 1)
+        for i in range(2500,3000):
+            sql += "bool_%d bool, " % (i + 1)
+        for i in range(3000,3500):
+            sql += "bigint_%d bigint, " % (i + 1)
+        for i in range(3500,3800):
+            sql += "nchar_%d nchar(4), " % (i + 1)
+        for i in range(3800,4090):
+            sql += "binary_%d binary(10), " % (i + 1)
+        for i in range(4090,4092):
+            sql += "timestamp_%d timestamp, " % (i + 1)
+        sql += " col4093 binary(22)) "  
+        sql += " tags (loc nchar(20),tag_1 int) "
+        tdLog.info(len(sql))      
+        tdSql.execute(sql)
+
+        sql = " create table table_4096_2 using stable_4096_2 tags ('table_4096_2',1); "
+        tdSql.execute(sql)
+
+        for i in range(self.num4096):
+            sql = "insert into table_4096_2 values(%d, "
+            for j in range(4090): 
+                str = "'%s', " % 'NULL'             
+                sql += str
+            for j in range(4090,4092):
+                str = "%s, " % (self.ts + j)                
+                sql += str
+            sql += "'%s')" % (self.ts + i)
+            tdSql.execute(sql % (self.ts + i))
+        tdSql.query('''select * from table_4096_2 where ts = %d ;''' %(self.ts))
+        tdSql.checkCols(4094)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,501,None)   
+        tdSql.checkData(0,1001,None)   
+        tdSql.checkData(0,1501,None)   
+        tdSql.checkData(0,2001,None)   
+        tdSql.checkData(0,2501,None)   
+        tdSql.checkData(0,3001,None)
+        tdSql.checkData(0,3501,'NULL')   
+        tdSql.checkData(0,3801,'NULL')   
+        tdSql.checkData(0,4091,'2020-09-13 20:26:44.090') 
+        tdSql.checkData(0,4093,'1600000000000')
+        tdSql.query('''select * from stable_4096_2 where ts = %d ;''' %(self.ts))
+        tdSql.checkCols(4096)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,501,None)   
+        tdSql.checkData(0,1001,None)   
+        tdSql.checkData(0,1501,None)   
+        tdSql.checkData(0,2001,None)   
+        tdSql.checkData(0,2501,None)   
+        tdSql.checkData(0,3001,None)
+        tdSql.checkData(0,3501,'NULL')   
+        tdSql.checkData(0,3801,'NULL')   
+        tdSql.checkData(0,4091,'2020-09-13 20:26:44.090') 
+        tdSql.checkData(0,4093,'1600000000000')
+
+        sql = '''insert into table_4096_2 (ts , int_1,smallint_501 , tinyint_1001 , double_1501 , float_2001 , bool_2501 ,
+                bigint_3001 , nchar_3501 , binary_3801 , timestamp_4091 , col4093 )
+                values('2020-09-10 20:26:40.000' , 1 , 501 , 101 , 1501 , 2001 , 1 , 3001 , '3501' , '3801' ,'2020-09-10 20:26:44.090','1500000000000');'''
+        tdSql.execute(sql)
+        tdSql.query("select * from table_4096_2 where ts ='2020-09-10 20:26:40.000';")
+        tdSql.checkCols(4094)
+        tdSql.checkData(0,1,1)   
+        tdSql.checkData(0,501,501)   
+        tdSql.checkData(0,1001,101)   
+        tdSql.checkData(0,1501,1501)   
+        tdSql.checkData(0,2001,2001)   
+        tdSql.checkData(0,2501,'True')   
+        tdSql.checkData(0,3001,3001)
+        tdSql.checkData(0,3501,'3501')   
+        tdSql.checkData(0,3801,'3801')   
+        tdSql.checkData(0,4091,'2020-09-10 20:26:44.090') 
+        tdSql.checkData(0,4093,'1500000000000') 
+        tdSql.query("select * from stable_4096_2 where ts ='2020-09-10 20:26:40.000';")
+        tdSql.checkCols(4096)
+        tdSql.checkData(0,1,1)   
+        tdSql.checkData(0,501,501)   
+        tdSql.checkData(0,1001,101)   
+        tdSql.checkData(0,1501,1501)   
+        tdSql.checkData(0,2001,2001)   
+        tdSql.checkData(0,2501,'True')   
+        tdSql.checkData(0,3001,3001)
+        tdSql.checkData(0,3501,'3501')   
+        tdSql.checkData(0,3801,'3801')   
+        tdSql.checkData(0,4091,'2020-09-10 20:26:44.090') 
+        tdSql.checkData(0,4093,'1500000000000') 
+
+
+        # taosdemo force data dropping disk
+        buildPath = self.getBuildPath()
+        if (buildPath == ""):
+            tdLog.exit("taosd not found!")
+        else:
+            tdLog.info("taosd found in %s" % buildPath)
+        binPath = buildPath+ "/build/bin/"
+        os.system("%staosdemo -N -d taosdemo -t 100 -n 100 -l 1000 -y" % binPath)
+
+        tdSql.execute('''insert into table_2 values( %d , NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL);''' %(self.ts - 200))
+        sql = '''select * from table_2 where ts = %d ;''' %(self.ts - 200)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,2,None)   
+        tdSql.checkData(0,3,None)   
+        tdSql.checkData(0,4,None)   
+        tdSql.checkData(0,5,None)   
+        tdSql.checkData(0,6,None)   
+        tdSql.checkData(0,7,None)
+        tdSql.checkData(0,8,None)   
+        tdSql.checkData(0,9,None)   
+        tdSql.checkData(0,10,None) 
+        sql = '''select * from stable_1 where loc = 'table_2' and ts = %d ;''' %(self.ts - 200)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,2,None)   
+        tdSql.checkData(0,3,None)   
+        tdSql.checkData(0,4,None)   
+        tdSql.checkData(0,5,None)   
+        tdSql.checkData(0,6,None)   
+        tdSql.checkData(0,7,None)
+        tdSql.checkData(0,8,None)   
+        tdSql.checkData(0,9,None)   
+        tdSql.checkData(0,10,None) 
+
+        tdSql.execute('''insert into table_2 values( %d , 0, 0, 0, 0, 0, 'binary+0', 'nchar+0', 0.000000, 0.000000, 1600000000000);''' %(self.ts + 200))
+        sql = '''select * from table_2 where ts = %d ;''' %(self.ts + 200)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,0)   
+        tdSql.checkData(0,2,0)   
+        tdSql.checkData(0,3,0)   
+        tdSql.checkData(0,4,0)   
+        tdSql.checkData(0,5,'False')   
+        tdSql.checkData(0,6,'binary+0')   
+        tdSql.checkData(0,7,'nchar+0')
+        tdSql.checkData(0,8,0)   
+        tdSql.checkData(0,9,0)   
+        tdSql.checkData(0,10,'2020-09-13 20:26:40.000') 
+        sql = '''select * from stable_1 where loc = 'table_2' and ts = %d ;''' %(self.ts + 200)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,0)   
+        tdSql.checkData(0,2,0)   
+        tdSql.checkData(0,3,0)   
+        tdSql.checkData(0,4,0)   
+        tdSql.checkData(0,5,'False')   
+        tdSql.checkData(0,6,'binary+0')   
+        tdSql.checkData(0,7,'nchar+0')
+        tdSql.checkData(0,8,0)   
+        tdSql.checkData(0,9,0)   
+        tdSql.checkData(0,10,'2020-09-13 20:26:40.000') 
+
+        tdSql.error('''insert into table_2 values( %d , -2147483648, -9223372036854775807, -32767, -127, 0, 'binary-0', 'nchar-0', 0.000000, 0.000000, 1600000000000);''' %(self.ts - 500))
+        tdSql.error('''insert into table_2 values( %d , -2147483647, -9223372036854775808, -32767, -127, 0, 'binary-0', 'nchar-0', 0.000000, 0.000000, 1600000000000);''' %(self.ts - 500))
+        tdSql.error('''insert into table_2 values( %d , -2147483647, -9223372036854775807, -32768, -127, 0, 'binary-0', 'nchar-0', 0.000000, 0.000000, 1600000000000);''' %(self.ts - 500))
+        tdSql.error('''insert into table_2 values( %d , -2147483647, -9223372036854775807, -32767, -128, 0, 'binary-0', 'nchar-0', 0.000000, 0.000000, 1600000000000);''' %(self.ts - 500))
+        tdSql.error('''insert into table_2 values( %d , -2147483647, -9223372036854775807, -32767, -127, 0, 'binary-0123', 'nchar-0', 0.000000, 0.000000, 1600000000000);''' %(self.ts - 500))
+        tdSql.error('''insert into table_2 values( %d , -2147483647, -9223372036854775807, -32767, -127, 0, 'binary-0', 'nchar-01234', 0.000000, 0.000000, 1600000000000);''' %(self.ts - 500))
+        
+        tdSql.execute('''insert into table_2 values( %d , -2147483647, -9223372036854775807, -32767, -127, 0, 'binary-012', 'nchar-0123', 0.000000, 0.000000, 1600000000000);''' %(self.ts - 500))
+        sql = '''select * from table_2 where ts = %d ;''' %(self.ts - 500)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,-2147483647)   
+        tdSql.checkData(0,2,-9223372036854775807)   
+        tdSql.checkData(0,3,-32767)   
+        tdSql.checkData(0,4,-127)   
+        tdSql.checkData(0,5,'False')   
+        tdSql.checkData(0,6,'binary-012')   
+        tdSql.checkData(0,7,'nchar-0123')
+        tdSql.checkData(0,8,0)   
+        tdSql.checkData(0,9,0)   
+        tdSql.checkData(0,10,'2020-09-13 20:26:44.090') 
+        sql = '''select * from stable_1 where loc = 'table_2' and ts = %d ;''' %(self.ts - 500)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,-2147483647)   
+        tdSql.checkData(0,2,-9223372036854775807)   
+        tdSql.checkData(0,3,-32767)   
+        tdSql.checkData(0,4,-127)   
+        tdSql.checkData(0,5,'False')   
+        tdSql.checkData(0,6,'binary-012')   
+        tdSql.checkData(0,7,'nchar-0123')
+        tdSql.checkData(0,8,0)   
+        tdSql.checkData(0,9,0)     
+        tdSql.checkData(0,10,'2020-09-13 20:26:44.090')  
+
+        tdSql.error('''insert into table_2 values( %d , 2147483648, 9223372036854775807, 32767, 127, 0, 'binary+0', 'nchar+0', 0.000000, 0.000000, 1600000000000);''' %(self.ts + 500))
+        tdSql.error('''insert into table_2 values( %d , 2147483647, 9223372036854775808, 32767, 127, 0, 'binary+0', 'nchar+0', 0.000000, 0.000000, 1600000000000);''' %(self.ts + 500))
+        tdSql.error('''insert into table_2 values( %d , 2147483647, 9223372036854775807, 32768, 127, 0, 'binary+0', 'nchar+0', 0.000000, 0.000000, 1600000000000);''' %(self.ts + 500))
+        tdSql.error('''insert into table_2 values( %d , 2147483647, 9223372036854775807, 32767, 128, 0, 'binary+0', 'nchar+0', 0.000000, 0.000000, 1600000000000);''' %(self.ts + 500))
+        tdSql.error('''insert into table_2 values( %d , 2147483647, 9223372036854775807, 32767, 127, 0, 'binary+0123', 'nchar+0', 0.000000, 0.000000, 1600000000000);''' %(self.ts + 500))
+        tdSql.error('''insert into table_2 values( %d , 2147483647, 9223372036854775807, 32767, 127, 0, 'binary+0', 'nchar+01234', 0.000000, 0.000000, 1600000000000);''' %(self.ts + 500))
+        
+        tdSql.execute('''insert into table_2 values( %d , 2147483647, 9223372036854775807, 32767, 127, 0, 'binary+012', 'nchar+0123', 0.000000, 0.000000, 1600000000000);''' %(self.ts + 500))
+        sql = '''select * from table_2 where ts = %d ;''' %(self.ts + 500)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,2147483647)   
+        tdSql.checkData(0,2,9223372036854775807)   
+        tdSql.checkData(0,3,32767)   
+        tdSql.checkData(0,4,127)   
+        tdSql.checkData(0,5,'False')   
+        tdSql.checkData(0,6,'binary+012')   
+        tdSql.checkData(0,7,'nchar+0123')
+        tdSql.checkData(0,8,0)   
+        tdSql.checkData(0,9,0)     
+        tdSql.checkData(0,10,'2020-09-13 20:26:44.090')  
+        sql = '''select * from stable_1 where loc = 'table_2' and ts = %d ;''' %(self.ts + 500)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,2147483647)   
+        tdSql.checkData(0,2,9223372036854775807)   
+        tdSql.checkData(0,3,32767)   
+        tdSql.checkData(0,4,127)   
+        tdSql.checkData(0,5,'False')   
+        tdSql.checkData(0,6,'binary+012')   
+        tdSql.checkData(0,7,'nchar+0123')
+        tdSql.checkData(0,8,0)   
+        tdSql.checkData(0,9,0)     
+        tdSql.checkData(0,10,'2020-09-13 20:26:44.090') 
+
+        tdLog.info("========== 4096 regular_table ==========") 
+        sql = '''insert into regular_table_4096_2 (ts , int_1,smallint_501 , tinyint_1001 , double_1501 , float_2001 , bool_2501 ,
+                bigint_3001 , nchar_3501 , binary_3801 , timestamp_4091 , col4095 )
+                values('2020-09-13 20:26:40.000' , 1 , 501 , 101 , 1501 , 2001 , 1 , 3001 , '3501' , '3801' ,'2020-09-13 20:26:44.090','1600000000000');'''
+        tdSql.execute(sql)
+        tdSql.query("select * from regular_table_4096_2 where ts ='2020-09-13 20:26:40.000';")
+        tdSql.checkCols(4096)
+        tdSql.checkData(0,1,1)   
+        tdSql.checkData(0,501,501)   
+        tdSql.checkData(0,1001,101)   
+        tdSql.checkData(0,1501,1501)   
+        tdSql.checkData(0,2001,2001)   
+        tdSql.checkData(0,2501,'True')   
+        tdSql.checkData(0,3001,3001)
+        tdSql.checkData(0,3501,'3501')   
+        tdSql.checkData(0,3801,'3801')   
+        tdSql.checkData(0,4091,'2020-09-10 20:26:44.090') 
+        tdSql.checkData(0,4095,'1600000000000') 
+
+        sql = '''insert into regular_table_4096_2 (ts , int_1,smallint_501 , tinyint_1001 , double_1501 , float_2001 , bool_2501 ,
+                bigint_3001 , nchar_3501 , binary_3801 , timestamp_4091 , col4095 )
+                values('2020-09-10 20:26:40.000' , NULL , NULL , NULL , NULL , NULL , NULL , NULL , NULL , NULL , NULL , NULL);'''
+        tdSql.execute(sql)
+        tdSql.query("select * from regular_table_4096_2 where ts ='2020-09-10 20:26:40.000';")
+        tdSql.checkCols(4096)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,501,None)   
+        tdSql.checkData(0,1001,None)   
+        tdSql.checkData(0,1501,None)   
+        tdSql.checkData(0,2001,None)   
+        tdSql.checkData(0,2501,None)   
+        tdSql.checkData(0,3001,None)
+        tdSql.checkData(0,3501,None)   
+        tdSql.checkData(0,3801,None)   
+        tdSql.checkData(0,4091,None) 
+        tdSql.checkData(0,4095,None) 
+
+        tdLog.info("========== 4096 stable ==========") 
+        sql = '''insert into table_4096_2 (ts , int_1,smallint_501 , tinyint_1001 , double_1501 , float_2001 , bool_2501 ,
+                bigint_3001 , nchar_3501 , binary_3801 , timestamp_4091 , col4093 )
+                values('2020-09-13 20:26:40.000' , 1 , 501 , 101 , 1501 , 2001 , 1 , 3001 , '3501' , '3801' ,'2020-09-13 20:26:44.090','1600000000000');'''
+        tdSql.execute(sql)
+        tdSql.query("select * from table_4096_2 where ts ='2020-09-13 20:26:40.000';")
+        tdSql.checkCols(4094)
+        tdSql.checkData(0,1,1)   
+        tdSql.checkData(0,501,501)   
+        tdSql.checkData(0,1001,101)   
+        tdSql.checkData(0,1501,1501)   
+        tdSql.checkData(0,2001,2001)   
+        tdSql.checkData(0,2501,'True')   
+        tdSql.checkData(0,3001,3001)
+        tdSql.checkData(0,3501,'3501')   
+        tdSql.checkData(0,3801,'3801')     
+        tdSql.checkData(0,4091,'2020-09-13 20:26:44.090') 
+        tdSql.checkData(0,4093,'1600000000000') 
+        tdSql.query("select * from stable_4096_2 where ts ='2020-09-13 20:26:40.000';")
+        tdSql.checkCols(4096)
+        tdSql.checkData(0,1,1)   
+        tdSql.checkData(0,501,501)   
+        tdSql.checkData(0,1001,101)   
+        tdSql.checkData(0,1501,1501)   
+        tdSql.checkData(0,2001,2001)   
+        tdSql.checkData(0,2501,'True')   
+        tdSql.checkData(0,3001,3001)
+        tdSql.checkData(0,3501,'3501')   
+        tdSql.checkData(0,3801,'3801')    
+        tdSql.checkData(0,4091,'2020-09-13 20:26:44.090') 
+        tdSql.checkData(0,4093,'1600000000000') 
+
+        sql = '''insert into table_4096_2 (ts , int_1,smallint_501 , tinyint_1001 , double_1501 , float_2001 , bool_2501 ,
+                bigint_3001 , nchar_3501 , binary_3801 , timestamp_4091 , col4093 )
+                values('2020-09-10 20:26:40.000' , NULL , NULL , NULL , NULL , NULL , NULL , NULL , NULL , NULL , NULL , NULL);'''
+        tdSql.execute(sql)
+        tdSql.query("select * from table_4096_2 where ts ='2020-09-10 20:26:40.000';")
+        tdSql.checkCols(4094)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,501,None)   
+        tdSql.checkData(0,1001,None)   
+        tdSql.checkData(0,1501,None)   
+        tdSql.checkData(0,2001,None)   
+        tdSql.checkData(0,2501,None)   
+        tdSql.checkData(0,3001,None)
+        tdSql.checkData(0,3501,None)   
+        tdSql.checkData(0,3801,None)   
+        tdSql.checkData(0,4091,None) 
+        tdSql.checkData(0,4093,None) 
+        tdSql.query("select * from stable_4096_2 where ts ='2020-09-10 20:26:40.000';")
+        tdSql.checkCols(4096)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,501,None)   
+        tdSql.checkData(0,1001,None)   
+        tdSql.checkData(0,1501,None)   
+        tdSql.checkData(0,2001,None)   
+        tdSql.checkData(0,2501,None)   
+        tdSql.checkData(0,3001,None)
+        tdSql.checkData(0,3501,None)   
+        tdSql.checkData(0,3801,None)   
+        tdSql.checkData(0,4091,None) 
+        tdSql.checkData(0,4093,None)  
+
+        tdLog.info("========== test1.3 : insert data , tdDnodes restart force data dropping disk , check data==========")
+        tdLog.info("========== regular_table ==========") 
+        tdSql.execute('''insert into regular_table_3 values( %d , 0, 0, 0, 0, 0, 'binary-0', 'nchar-0', 0.000000, 0.000000, 1600000000000);''' %(self.ts - 200))
+        sql = '''select * from regular_table_3 where ts = %d ;''' %(self.ts - 200)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,0)   
+        tdSql.checkData(0,2,0)   
+        tdSql.checkData(0,3,0)   
+        tdSql.checkData(0,4,0)   
+        tdSql.checkData(0,5,'False')   
+        tdSql.checkData(0,6,'binary-0')   
+        tdSql.checkData(0,7,'nchar-0')
+        tdSql.checkData(0,8,0)   
+        tdSql.checkData(0,9,0)   
+        tdSql.checkData(0,10,'2020-09-13 20:26:40.000') 
+
+        tdSql.execute('''insert into regular_table_3 values( %d , NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL);''' %(self.ts + 200))
+        sql = '''select * from regular_table_3 where ts = %d ;''' %(self.ts + 200)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,2,None)   
+        tdSql.checkData(0,3,None)   
+        tdSql.checkData(0,4,None)   
+        tdSql.checkData(0,5,None)   
+        tdSql.checkData(0,6,None)   
+        tdSql.checkData(0,7,None)
+        tdSql.checkData(0,8,None)   
+        tdSql.checkData(0,9,None)   
+        tdSql.checkData(0,10,None) 
+
+        tdSql.execute('''insert into regular_table_3 values( %d , NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL);''' %(self.ts - 500))
+        sql = '''select * from regular_table_3 where ts = %d ;''' %(self.ts - 500)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,2,None)   
+        tdSql.checkData(0,3,None)   
+        tdSql.checkData(0,4,None)   
+        tdSql.checkData(0,5,None)   
+        tdSql.checkData(0,6,None)   
+        tdSql.checkData(0,7,None)
+        tdSql.checkData(0,8,None)   
+        tdSql.checkData(0,9,None)   
+        tdSql.checkData(0,10,None) 
+
+        tdSql.execute('''insert into regular_table_3 values( %d , NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL);''' %(self.ts + 500))
+        sql = '''select * from regular_table_3 where ts = %d ;''' %(self.ts + 500)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,2,None)   
+        tdSql.checkData(0,3,None)   
+        tdSql.checkData(0,4,None)   
+        tdSql.checkData(0,5,None)   
+        tdSql.checkData(0,6,None)   
+        tdSql.checkData(0,7,None)
+        tdSql.checkData(0,8,None)   
+        tdSql.checkData(0,9,None)   
+        tdSql.checkData(0,10,None) 
+
+        tdLog.info("========== stable ==========") 
+        tdSql.execute('''insert into table_3 values( %d , 0, 0, 0, 0, 0, 'binary-0', 'nchar-0', 0.000000, 0.000000, 1600000000000);''' %(self.ts - 200))
+        sql = '''select * from table_3 where ts = %d ;''' %(self.ts - 200)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,0)   
+        tdSql.checkData(0,2,0)   
+        tdSql.checkData(0,3,0)   
+        tdSql.checkData(0,4,0)   
+        tdSql.checkData(0,5,'False')   
+        tdSql.checkData(0,6,'binary-0')   
+        tdSql.checkData(0,7,'nchar-0')
+        tdSql.checkData(0,8,0)   
+        tdSql.checkData(0,9,0)   
+        tdSql.checkData(0,10,'2020-09-13 20:26:40.000') 
+        sql = '''select * from stable_1 where loc = 'table_3' and ts = %d ;''' %(self.ts - 200)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,0)   
+        tdSql.checkData(0,2,0)   
+        tdSql.checkData(0,3,0)   
+        tdSql.checkData(0,4,0)   
+        tdSql.checkData(0,5,'False')   
+        tdSql.checkData(0,6,'binary-0')   
+        tdSql.checkData(0,7,'nchar-0')
+        tdSql.checkData(0,8,0)   
+        tdSql.checkData(0,9,0)   
+        tdSql.checkData(0,10,'2020-09-13 20:26:40.000') 
+
+        tdSql.execute('''insert into table_3 values( %d , NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL);''' %(self.ts + 200))
+        sql = '''select * from table_3 where ts = %d ;''' %(self.ts + 200)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,2,None)   
+        tdSql.checkData(0,3,None)   
+        tdSql.checkData(0,4,None)   
+        tdSql.checkData(0,5,None)   
+        tdSql.checkData(0,6,None)   
+        tdSql.checkData(0,7,None)
+        tdSql.checkData(0,8,None)   
+        tdSql.checkData(0,9,None)   
+        tdSql.checkData(0,10,None) 
+        sql = '''select * from stable_1 where loc = 'table_3' and ts = %d ;''' %(self.ts + 200)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,2,None)   
+        tdSql.checkData(0,3,None)   
+        tdSql.checkData(0,4,None)   
+        tdSql.checkData(0,5,None)   
+        tdSql.checkData(0,6,None)   
+        tdSql.checkData(0,7,None)
+        tdSql.checkData(0,8,None)   
+        tdSql.checkData(0,9,None)   
+        tdSql.checkData(0,10,None) 
+
+        tdSql.execute('''insert into table_3 values( %d , NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL);''' %(self.ts - 500))
+        sql = '''select * from table_3 where ts = %d ;''' %(self.ts - 500)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,2,None)   
+        tdSql.checkData(0,3,None)   
+        tdSql.checkData(0,4,None)   
+        tdSql.checkData(0,5,None)   
+        tdSql.checkData(0,6,None)   
+        tdSql.checkData(0,7,None)
+        tdSql.checkData(0,8,None)   
+        tdSql.checkData(0,9,None)   
+        tdSql.checkData(0,10,None) 
+        sql = '''select * from stable_1 where loc = 'table_3' and ts = %d ;''' %(self.ts - 500)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,2,None)   
+        tdSql.checkData(0,3,None)   
+        tdSql.checkData(0,4,None)   
+        tdSql.checkData(0,5,None)   
+        tdSql.checkData(0,6,None)   
+        tdSql.checkData(0,7,None)
+        tdSql.checkData(0,8,None)   
+        tdSql.checkData(0,9,None)   
+        tdSql.checkData(0,10,None) 
+
+        tdSql.execute('''insert into table_3 values( %d , NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL);''' %(self.ts + 500))
+        sql = '''select * from table_3 where ts = %d ;''' %(self.ts + 500)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,2,None)   
+        tdSql.checkData(0,3,None)   
+        tdSql.checkData(0,4,None)   
+        tdSql.checkData(0,5,None)   
+        tdSql.checkData(0,6,None)   
+        tdSql.checkData(0,7,None)
+        tdSql.checkData(0,8,None)   
+        tdSql.checkData(0,9,None)   
+        tdSql.checkData(0,10,None) 
+        sql = '''select * from stable_1 where loc = 'table_3' and ts = %d ;''' %(self.ts + 500)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,2,None)   
+        tdSql.checkData(0,3,None)   
+        tdSql.checkData(0,4,None)   
+        tdSql.checkData(0,5,None)   
+        tdSql.checkData(0,6,None)   
+        tdSql.checkData(0,7,None)
+        tdSql.checkData(0,8,None)   
+        tdSql.checkData(0,9,None)   
+        tdSql.checkData(0,10,None) 
+
+
+        tdLog.info("========== 4096 regular_table ==========") 
+        sql = "create table regular_table_4096_3 (ts timestamp, "
+        for i in range(500):
+            sql += "int_%d int, " % (i + 1)
+        for i in range(500,1000):
+            sql += "smallint_%d smallint, " % (i + 1)
+        for i in range(1000,1500):
+            sql += "tinyint_%d tinyint, " % (i + 1)
+        for i in range(1500,2000):
+            sql += "double_%d double, " % (i + 1)
+        for i in range(2000,2500):
+            sql += "float_%d float, " % (i + 1)
+        for i in range(2500,3000):
+            sql += "bool_%d bool, " % (i + 1)
+        for i in range(3000,3500):
+            sql += "bigint_%d bigint, " % (i + 1)
+        for i in range(3500,3800):
+            sql += "nchar_%d nchar(4), " % (i + 1)
+        for i in range(3800,4090):
+            sql += "binary_%d binary(10), " % (i + 1)
+        for i in range(4090,4094):
+            sql += "timestamp_%d timestamp, " % (i + 1)
+        sql += "col4095 binary(22))"  
+        tdLog.info(len(sql))      
+        tdSql.execute(sql)
+
+        for i in range(self.num4096):
+            sql = "insert into regular_table_4096_3 values(%d, "
+            for j in range(4090): 
+                str = "'%s', " % 'NULL'             
+                sql += str
+            for j in range(4090,4094):
+                str = "%s, " % (self.ts + j)                
+                sql += str
+            sql += "'%s')" % (self.ts + i)
+            tdSql.execute(sql % (self.ts + i))
+        tdSql.query('''select * from regular_table_4096_3 where ts = %d ;''' %(self.ts))
+        tdSql.checkCols(4096)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,501,None)   
+        tdSql.checkData(0,1001,None)   
+        tdSql.checkData(0,1501,None)   
+        tdSql.checkData(0,2001,None)   
+        tdSql.checkData(0,2501,None)   
+        tdSql.checkData(0,3001,None)
+        tdSql.checkData(0,3501,'NULL')   
+        tdSql.checkData(0,3801,'NULL')   
+        tdSql.checkData(0,4091,'2020-09-13 20:26:44.090') 
+        tdSql.checkData(0,4095,'1600000000000') 
+
+        sql = '''insert into regular_table_4096_3 (ts , int_1,smallint_501 , tinyint_1001 , double_1501 , float_2001 , bool_2501 ,
+                bigint_3001 , nchar_3501 , binary_3801 , timestamp_4091 , col4095 )
+                values('2020-09-10 20:26:40.000' , 1 , 501 , 101 , 1501 , 2001 , 1 , 3001 , '3501' , '3801' ,'2020-09-10 20:26:44.090','1500000000000');'''
+        tdSql.execute(sql)
+        tdSql.query("select * from regular_table_4096_3 where ts ='2020-09-10 20:26:40.000';")
+        tdSql.checkCols(4096)
+        tdSql.checkData(0,1,1)   
+        tdSql.checkData(0,501,501)   
+        tdSql.checkData(0,1001,101)   
+        tdSql.checkData(0,1501,1501)   
+        tdSql.checkData(0,2001,2001)   
+        tdSql.checkData(0,2501,'True')   
+        tdSql.checkData(0,3001,3001)
+        tdSql.checkData(0,3501,'3501')   
+        tdSql.checkData(0,3801,'3801')   
+        tdSql.checkData(0,4091,'2020-09-10 20:26:44.090') 
+        tdSql.checkData(0,4095,'1500000000000') 
+
+        tdLog.info("========== 4096 stable ==========") 
+        sql = "create stable stable_4096_3 (ts timestamp, "
+        for i in range(500):
+            sql += "int_%d int, " % (i + 1)
+        for i in range(500,1000):
+            sql += "smallint_%d smallint, " % (i + 1)
+        for i in range(1000,1500):
+            sql += "tinyint_%d tinyint, " % (i + 1)
+        for i in range(1500,2000):
+            sql += "double_%d double, " % (i + 1)
+        for i in range(2000,2500):
+            sql += "float_%d float, " % (i + 1)
+        for i in range(2500,3000):
+            sql += "bool_%d bool, " % (i + 1)
+        for i in range(3000,3500):
+            sql += "bigint_%d bigint, " % (i + 1)
+        for i in range(3500,3800):
+            sql += "nchar_%d nchar(4), " % (i + 1)
+        for i in range(3800,4090):
+            sql += "binary_%d binary(10), " % (i + 1)
+        for i in range(4090,4092):
+            sql += "timestamp_%d timestamp, " % (i + 1)
+        sql += " col4093 binary(22)) "  
+        sql += " tags (loc nchar(20),tag_1 int) "
+        tdLog.info(len(sql))      
+        tdSql.execute(sql)
+
+        sql = " create table table_4096_3 using stable_4096_3 tags ('table_4096_3',1); "
+        tdSql.execute(sql)
+
+        for i in range(self.num4096):
+            sql = "insert into table_4096_3 values(%d, "
+            for j in range(4090): 
+                str = "'%s', " % 'NULL'             
+                sql += str
+            for j in range(4090,4092):
+                str = "%s, " % (self.ts + j)                
+                sql += str
+            sql += "'%s')" % (self.ts + i)
+            tdSql.execute(sql % (self.ts + i))
+        tdSql.query('''select * from table_4096_3 where ts = %d ;''' %(self.ts))
+        tdSql.checkCols(4094)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,501,None)   
+        tdSql.checkData(0,1001,None)   
+        tdSql.checkData(0,1501,None)   
+        tdSql.checkData(0,2001,None)   
+        tdSql.checkData(0,2501,None)   
+        tdSql.checkData(0,3001,None)
+        tdSql.checkData(0,3501,'NULL')   
+        tdSql.checkData(0,3801,'NULL')   
+        tdSql.checkData(0,4091,'2020-09-13 20:26:44.090') 
+        tdSql.checkData(0,4093,'1600000000000')
+        tdSql.query('''select * from stable_4096_3 where ts = %d ;''' %(self.ts))
+        tdSql.checkCols(4096)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,501,None)   
+        tdSql.checkData(0,1001,None)   
+        tdSql.checkData(0,1501,None)   
+        tdSql.checkData(0,2001,None)   
+        tdSql.checkData(0,2501,None)   
+        tdSql.checkData(0,3001,None)
+        tdSql.checkData(0,3501,'NULL')   
+        tdSql.checkData(0,3801,'NULL')   
+        tdSql.checkData(0,4091,'2020-09-13 20:26:44.090') 
+        tdSql.checkData(0,4093,'1600000000000')
+
+        sql = '''insert into table_4096_3 (ts , int_1,smallint_501 , tinyint_1001 , double_1501 , float_2001 , bool_2501 ,
+                bigint_3001 , nchar_3501 , binary_3801 , timestamp_4091 , col4093 )
+                values('2020-09-10 20:26:40.000' , 1 , 501 , 101 , 1501 , 2001 , 1 , 3001 , '3501' , '3801' ,'2020-09-10 20:26:44.090','1500000000000');'''
+        tdSql.execute(sql)
+        tdSql.query("select * from table_4096_3 where ts ='2020-09-10 20:26:40.000';")
+        tdSql.checkCols(4094)
+        tdSql.checkData(0,1,1)   
+        tdSql.checkData(0,501,501)   
+        tdSql.checkData(0,1001,101)   
+        tdSql.checkData(0,1501,1501)   
+        tdSql.checkData(0,2001,2001)   
+        tdSql.checkData(0,2501,'True')   
+        tdSql.checkData(0,3001,3001)
+        tdSql.checkData(0,3501,'3501')   
+        tdSql.checkData(0,3801,'3801')   
+        tdSql.checkData(0,4091,'2020-09-10 20:26:44.090') 
+        tdSql.checkData(0,4093,'1500000000000') 
+        tdSql.query("select * from stable_4096_3 where ts ='2020-09-10 20:26:40.000';")
+        tdSql.checkCols(4096)
+        tdSql.checkData(0,1,1)   
+        tdSql.checkData(0,501,501)   
+        tdSql.checkData(0,1001,101)   
+        tdSql.checkData(0,1501,1501)   
+        tdSql.checkData(0,2001,2001)   
+        tdSql.checkData(0,2501,'True')   
+        tdSql.checkData(0,3001,3001)
+        tdSql.checkData(0,3501,'3501')   
+        tdSql.checkData(0,3801,'3801')   
+        tdSql.checkData(0,4091,'2020-09-10 20:26:44.090') 
+        tdSql.checkData(0,4093,'1500000000000') 
+
+        # tdDnodes restart force data dropping disk
+        tdDnodes.stop(1)
+        tdDnodes.start(1)
+
+        tdLog.info("========== regular_table ==========") 
+        tdSql.execute('''insert into regular_table_3 values( %d , NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL);''' %(self.ts - 200))
+        sql = '''select * from regular_table_3 where ts = %d ;''' %(self.ts - 200)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,2,None)   
+        tdSql.checkData(0,3,None)   
+        tdSql.checkData(0,4,None)   
+        tdSql.checkData(0,5,None)   
+        tdSql.checkData(0,6,None)   
+        tdSql.checkData(0,7,None)
+        tdSql.checkData(0,8,None)   
+        tdSql.checkData(0,9,None)   
+        tdSql.checkData(0,10,None) 
+
+        tdSql.execute('''insert into regular_table_3 values( %d , 0, 0, 0, 0, 0, 'binary+0', 'nchar+0', 0.000000, 0.000000, 1600000000000);''' %(self.ts + 200))
+        sql = '''select * from regular_table_3 where ts = %d ;''' %(self.ts + 200)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,0)   
+        tdSql.checkData(0,2,0)   
+        tdSql.checkData(0,3,0)   
+        tdSql.checkData(0,4,0)   
+        tdSql.checkData(0,5,'False')   
+        tdSql.checkData(0,6,'binary+0')   
+        tdSql.checkData(0,7,'nchar+0')
+        tdSql.checkData(0,8,0)   
+        tdSql.checkData(0,9,0)   
+        tdSql.checkData(0,10,'2020-09-13 20:26:40.000') 
+
+        tdSql.error('''insert into regular_table_3 values( %d , -2147483648, -9223372036854775807, -32767, -127, 0, 'binary-0', 'nchar-0', 0.000000, 0.000000, 1600000000000);''' %(self.ts - 500))
+        tdSql.error('''insert into regular_table_3 values( %d , -2147483647, -9223372036854775808, -32767, -127, 0, 'binary-0', 'nchar-0', 0.000000, 0.000000, 1600000000000);''' %(self.ts - 500))
+        tdSql.error('''insert into regular_table_3 values( %d , -2147483647, -9223372036854775807, -32768, -127, 0, 'binary-0', 'nchar-0', 0.000000, 0.000000, 1600000000000);''' %(self.ts - 500))
+        tdSql.error('''insert into regular_table_3 values( %d , -2147483647, -9223372036854775807, -32767, -128, 0, 'binary-0', 'nchar-0', 0.000000, 0.000000, 1600000000000);''' %(self.ts - 500))
+        tdSql.error('''insert into regular_table_3 values( %d , -2147483647, -9223372036854775807, -32767, -127, 0, 'binary-0123', 'nchar-0', 0.000000, 0.000000, 1600000000000);''' %(self.ts - 500))
+        tdSql.error('''insert into regular_table_3 values( %d , -2147483647, -9223372036854775807, -32767, -127, 0, 'binary-0', 'nchar-01234', 0.000000, 0.000000, 1600000000000);''' %(self.ts - 500))
+        
+        tdSql.execute('''insert into regular_table_3 values( %d , -2147483647, -9223372036854775807, -32767, -127, 0, 'binary-012', 'nchar-0123', 0.000000, 0.000000, 1600000000000);''' %(self.ts - 500))
+        sql = '''select * from regular_table_3 where ts = %d ;''' %(self.ts - 500)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,-2147483647)   
+        tdSql.checkData(0,2,-9223372036854775807)   
+        tdSql.checkData(0,3,-32767)   
+        tdSql.checkData(0,4,-127)   
+        tdSql.checkData(0,5,'False')   
+        tdSql.checkData(0,6,'binary-012')   
+        tdSql.checkData(0,7,'nchar-0123')
+        tdSql.checkData(0,8,0)   
+        tdSql.checkData(0,9,0)     
+        tdSql.checkData(0,10,'2020-09-13 20:26:44.090')
+
+        tdSql.error('''insert into regular_table_3 values( %d , 2147483648, 9223372036854775807, 32767, 127, 0, 'binary+0', 'nchar+0', 0.000000, 0.000000, 1600000000000);''' %(self.ts + 500))
+        tdSql.error('''insert into regular_table_3 values( %d , 2147483647, 9223372036854775808, 32767, 127, 0, 'binary+0', 'nchar+0', 0.000000, 0.000000, 1600000000000);''' %(self.ts + 500))
+        tdSql.error('''insert into regular_table_3 values( %d , 2147483647, 9223372036854775807, 32768, 127, 0, 'binary+0', 'nchar+0', 0.000000, 0.000000, 1600000000000);''' %(self.ts + 500))
+        tdSql.error('''insert into regular_table_3 values( %d , 2147483647, 9223372036854775807, 32767, 128, 0, 'binary+0', 'nchar+0', 0.000000, 0.000000, 1600000000000);''' %(self.ts + 500))
+        tdSql.error('''insert into regular_table_3 values( %d , 2147483647, 9223372036854775807, 32767, 127, 0, 'binary+0123', 'nchar+0', 0.000000, 0.000000, 1600000000000);''' %(self.ts + 500))
+        tdSql.error('''insert into regular_table_3 values( %d , 2147483647, 9223372036854775807, 32767, 127, 0, 'binary+0', 'nchar+01234', 0.000000, 0.000000, 1600000000000);''' %(self.ts + 500))
+        
+        tdSql.execute('''insert into regular_table_3 values( %d , 2147483647, 9223372036854775807, 32767, 127, 0, 'binary+012', 'nchar+0123', 0.000000, 0.000000, 1600000000000);''' %(self.ts + 500))
+        sql = '''select * from regular_table_3 where ts = %d ;''' %(self.ts + 500)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,2147483647)   
+        tdSql.checkData(0,2,9223372036854775807)   
+        tdSql.checkData(0,3,32767)   
+        tdSql.checkData(0,4,127)   
+        tdSql.checkData(0,5,'False')   
+        tdSql.checkData(0,6,'binary+012')   
+        tdSql.checkData(0,7,'nchar+0123')
+        tdSql.checkData(0,8,0)   
+        tdSql.checkData(0,9,0)     
+        tdSql.checkData(0,10,'2020-09-13 20:26:44.090')  
+
+        tdLog.info("========== stable ==========") 
+        tdSql.execute('''insert into table_3 values( %d , NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL);''' %(self.ts - 200))
+        sql = '''select * from table_3 where ts = %d ;''' %(self.ts - 200)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,2,None)   
+        tdSql.checkData(0,3,None)   
+        tdSql.checkData(0,4,None)   
+        tdSql.checkData(0,5,None)   
+        tdSql.checkData(0,6,None)   
+        tdSql.checkData(0,7,None)
+        tdSql.checkData(0,8,None)   
+        tdSql.checkData(0,9,None)   
+        tdSql.checkData(0,10,None) 
+        sql = '''select * from stable_1 where loc = 'table_3' and ts = %d ;''' %(self.ts - 200)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,2,None)   
+        tdSql.checkData(0,3,None)   
+        tdSql.checkData(0,4,None)   
+        tdSql.checkData(0,5,None)   
+        tdSql.checkData(0,6,None)   
+        tdSql.checkData(0,7,None)
+        tdSql.checkData(0,8,None)   
+        tdSql.checkData(0,9,None)   
+        tdSql.checkData(0,10,None) 
+
+        tdSql.execute('''insert into table_3 values( %d , 0, 0, 0, 0, 0, 'binary+0', 'nchar+0', 0.000000, 0.000000, 1600000000000);''' %(self.ts + 200))
+        sql = '''select * from table_3 where ts = %d ;''' %(self.ts + 200)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,0)   
+        tdSql.checkData(0,2,0)   
+        tdSql.checkData(0,3,0)   
+        tdSql.checkData(0,4,0)   
+        tdSql.checkData(0,5,'False')   
+        tdSql.checkData(0,6,'binary+0')   
+        tdSql.checkData(0,7,'nchar+0')
+        tdSql.checkData(0,8,0)   
+        tdSql.checkData(0,9,0)   
+        tdSql.checkData(0,10,'2020-09-13 20:26:40.000')
+        sql = '''select * from stable_1 where loc = 'table_3' and ts = %d ;''' %(self.ts + 200)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,0)   
+        tdSql.checkData(0,2,0)   
+        tdSql.checkData(0,3,0)   
+        tdSql.checkData(0,4,0)   
+        tdSql.checkData(0,5,'False')   
+        tdSql.checkData(0,6,'binary+0')   
+        tdSql.checkData(0,7,'nchar+0')
+        tdSql.checkData(0,8,0)   
+        tdSql.checkData(0,9,0)   
+        tdSql.checkData(0,10,'2020-09-13 20:26:40.000')
+
+        tdSql.error('''insert into table_3 values( %d , -2147483648, -9223372036854775807, -32767, -127, 0, 'binary-0', 'nchar-0', 0.000000, 0.000000, 1600000000000);''' %(self.ts - 500))
+        tdSql.error('''insert into table_3 values( %d , -2147483647, -9223372036854775808, -32767, -127, 0, 'binary-0', 'nchar-0', 0.000000, 0.000000, 1600000000000);''' %(self.ts - 500))
+        tdSql.error('''insert into table_3 values( %d , -2147483647, -9223372036854775807, -32768, -127, 0, 'binary-0', 'nchar-0', 0.000000, 0.000000, 1600000000000);''' %(self.ts - 500))
+        tdSql.error('''insert into table_3 values( %d , -2147483647, -9223372036854775807, -32767, -128, 0, 'binary-0', 'nchar-0', 0.000000, 0.000000, 1600000000000);''' %(self.ts - 500))
+        tdSql.error('''insert into table_3 values( %d , -2147483647, -9223372036854775807, -32767, -127, 0, 'binary-0123', 'nchar-0', 0.000000, 0.000000, 1600000000000);''' %(self.ts - 500))
+        tdSql.error('''insert into table_3 values( %d , -2147483647, -9223372036854775807, -32767, -127, 0, 'binary-0', 'nchar-01234', 0.000000, 0.000000, 1600000000000);''' %(self.ts - 500))
+        
+        tdSql.execute('''insert into table_3 values( %d , -2147483647, -9223372036854775807, -32767, -127, 0, 'binary-012', 'nchar-0123', 0.000000, 0.000000, 1600000000000);''' %(self.ts - 500))
+        sql = '''select * from table_3 where ts = %d ;''' %(self.ts - 500)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,-2147483647)   
+        tdSql.checkData(0,2,-9223372036854775807)   
+        tdSql.checkData(0,3,-32767)   
+        tdSql.checkData(0,4,-127)   
+        tdSql.checkData(0,5,'False')   
+        tdSql.checkData(0,6,'binary-012')   
+        tdSql.checkData(0,7,'nchar-0123')
+        tdSql.checkData(0,8,0)   
+        tdSql.checkData(0,9,0)   
+        tdSql.checkData(0,10,'2020-09-13 20:26:44.090')
+        sql = '''select * from stable_1 where loc = 'table_3' and ts = %d ;''' %(self.ts - 500)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,-2147483647)   
+        tdSql.checkData(0,2,-9223372036854775807)   
+        tdSql.checkData(0,3,-32767)   
+        tdSql.checkData(0,4,-127)   
+        tdSql.checkData(0,5,'False')   
+        tdSql.checkData(0,6,'binary-012')   
+        tdSql.checkData(0,7,'nchar-0123')
+        tdSql.checkData(0,8,0)   
+        tdSql.checkData(0,9,0)   
+        tdSql.checkData(0,10,'2020-09-13 20:26:44.090')
+
+        tdSql.error('''insert into table_3 values( %d , 2147483648, 9223372036854775807, 32767, 127, 0, 'binary+0', 'nchar+0', 0.000000, 0.000000, 1600000000000);''' %(self.ts + 500))
+        tdSql.error('''insert into table_3 values( %d , 2147483647, 9223372036854775808, 32767, 127, 0, 'binary+0', 'nchar+0', 0.000000, 0.000000, 1600000000000);''' %(self.ts + 500))
+        tdSql.error('''insert into table_3 values( %d , 2147483647, 9223372036854775807, 32768, 127, 0, 'binary+0', 'nchar+0', 0.000000, 0.000000, 1600000000000);''' %(self.ts + 500))
+        tdSql.error('''insert into table_3 values( %d , 2147483647, 9223372036854775807, 32767, 128, 0, 'binary+0', 'nchar+0', 0.000000, 0.000000, 1600000000000);''' %(self.ts + 500))
+        tdSql.error('''insert into table_3 values( %d , 2147483647, 9223372036854775807, 32767, 127, 0, 'binary+0123', 'nchar+0', 0.000000, 0.000000, 1600000000000);''' %(self.ts + 500))
+        tdSql.error('''insert into table_3 values( %d , 2147483647, 9223372036854775807, 32767, 127, 0, 'binary+0', 'nchar+01234', 0.000000, 0.000000, 1600000000000);''' %(self.ts + 500))
+        
+        tdSql.execute('''insert into table_3 values( %d , 2147483647, 9223372036854775807, 32767, 127, 0, 'binary+012', 'nchar+0123', 0.000000, 0.000000, 1600000000000);''' %(self.ts + 500))
+        sql = '''select * from table_3 where ts = %d ;''' %(self.ts + 500)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,2147483647)   
+        tdSql.checkData(0,2,9223372036854775807)   
+        tdSql.checkData(0,3,32767)   
+        tdSql.checkData(0,4,127)   
+        tdSql.checkData(0,5,'False')   
+        tdSql.checkData(0,6,'binary+012')   
+        tdSql.checkData(0,7,'nchar+0123')
+        tdSql.checkData(0,8,0)   
+        tdSql.checkData(0,9,0)     
+        tdSql.checkData(0,10,'2020-09-13 20:26:44.090') 
+        sql = '''select * from stable_1 where loc = 'table_3' and ts = %d ;''' %(self.ts + 500)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,2147483647)   
+        tdSql.checkData(0,2,9223372036854775807)   
+        tdSql.checkData(0,3,32767)   
+        tdSql.checkData(0,4,127)   
+        tdSql.checkData(0,5,'False')   
+        tdSql.checkData(0,6,'binary+012')   
+        tdSql.checkData(0,7,'nchar+0123')
+        tdSql.checkData(0,8,0)   
+        tdSql.checkData(0,9,0)     
+        tdSql.checkData(0,10,'2020-09-13 20:26:44.090')  
+
+
+        tdLog.info("========== 4096 regular_table ==========") 
+        sql = '''insert into regular_table_4096_3 (ts , int_1,smallint_501 , tinyint_1001 , double_1501 , float_2001 , bool_2501 ,
+                bigint_3001 , nchar_3501 , binary_3801 , timestamp_4091 , col4095 )
+                values('2020-09-13 20:26:40.000' , 1 , 501 , 101 , 1501 , 2001 , 1 , 3001 , '3501' , '3801' ,'2020-09-13 20:26:44.090','1600000000000');'''
+        tdSql.execute(sql)
+        tdSql.query("select * from regular_table_4096_3 where ts ='2020-09-13 20:26:40.000';")
+        tdSql.checkCols(4096)
+        tdSql.checkData(0,1,1)   
+        tdSql.checkData(0,501,501)   
+        tdSql.checkData(0,1001,101)   
+        tdSql.checkData(0,1501,1501)   
+        tdSql.checkData(0,2001,2001)   
+        tdSql.checkData(0,2501,'True')   
+        tdSql.checkData(0,3001,3001)
+        tdSql.checkData(0,3501,'3501')   
+        tdSql.checkData(0,3801,'3801')  
+        tdSql.checkData(0,4091,'2020-09-13 20:26:44.090') 
+        tdSql.checkData(0,4095,'1600000000000') 
+
+        sql = '''insert into regular_table_4096_3 (ts , int_1,smallint_501 , tinyint_1001 , double_1501 , float_2001 , bool_2501 ,
+                bigint_3001 , nchar_3501 , binary_3801 , timestamp_4091 , col4095 )
+                values('2020-09-10 20:26:40.000' , NULL , NULL , NULL , NULL , NULL , NULL , NULL , NULL , NULL , NULL , NULL);'''
+        tdSql.execute(sql)
+        tdSql.query("select * from regular_table_4096_3 where ts ='2020-09-10 20:26:40.000';")
+        tdSql.checkCols(4096)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,501,None)   
+        tdSql.checkData(0,1001,None)   
+        tdSql.checkData(0,1501,None)   
+        tdSql.checkData(0,2001,None)   
+        tdSql.checkData(0,2501,None)   
+        tdSql.checkData(0,3001,None)
+        tdSql.checkData(0,3501,None)   
+        tdSql.checkData(0,3801,None)   
+        tdSql.checkData(0,4091,None) 
+        tdSql.checkData(0,4095,None) 
+
+        tdLog.info("========== 4096 stable ==========") 
+        sql = '''insert into table_4096_3 (ts , int_1,smallint_501 , tinyint_1001 , double_1501 , float_2001 , bool_2501 ,
+                bigint_3001 , nchar_3501 , binary_3801 , timestamp_4091 , col4093 )
+                values('2020-09-13 20:26:40.000' , 1 , 501 , 101 , 1501 , 2001 , 1 , 3001 , '3501' , '3801' ,'2020-09-13 20:26:44.090','1600000000000');'''
+        tdSql.execute(sql)
+        tdSql.query("select * from table_4096_3 where ts ='2020-09-13 20:26:40.000';")
+        tdSql.checkCols(4094)
+        tdSql.checkData(0,1,1)   
+        tdSql.checkData(0,501,501)   
+        tdSql.checkData(0,1001,101)   
+        tdSql.checkData(0,1501,1501)   
+        tdSql.checkData(0,2001,2001)   
+        tdSql.checkData(0,2501,'True')   
+        tdSql.checkData(0,3001,3001)
+        tdSql.checkData(0,3501,'3501')   
+        tdSql.checkData(0,3801,'3801')  
+        tdSql.checkData(0,4091,'2020-09-13 20:26:44.090') 
+        tdSql.checkData(0,4093,'1600000000000') 
+        tdSql.query("select * from stable_4096_3 where ts ='2020-09-13 20:26:40.000';")
+        tdSql.checkCols(4096)
+        tdSql.checkData(0,1,1)   
+        tdSql.checkData(0,501,501)   
+        tdSql.checkData(0,1001,101)   
+        tdSql.checkData(0,1501,1501)   
+        tdSql.checkData(0,2001,2001)   
+        tdSql.checkData(0,2501,'True')   
+        tdSql.checkData(0,3001,3001)
+        tdSql.checkData(0,3501,'3501')   
+        tdSql.checkData(0,3801,'3801')
+        tdSql.checkData(0,4091,'2020-09-13 20:26:44.090') 
+        tdSql.checkData(0,4093,'1600000000000') 
+
+        sql = '''insert into table_4096_3 (ts , int_1,smallint_501 , tinyint_1001 , double_1501 , float_2001 , bool_2501 ,
+                bigint_3001 , nchar_3501 , binary_3801 , timestamp_4091 , col4093 )
+                values('2020-09-10 20:26:40.000' , NULL , NULL , NULL , NULL , NULL , NULL , NULL , NULL , NULL , NULL , NULL);'''
+        tdSql.execute(sql)
+        tdSql.query("select * from table_4096_3 where ts ='2020-09-10 20:26:40.000';")
+        tdSql.checkCols(4094)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,501,None)   
+        tdSql.checkData(0,1001,None)   
+        tdSql.checkData(0,1501,None)   
+        tdSql.checkData(0,2001,None)   
+        tdSql.checkData(0,2501,None)   
+        tdSql.checkData(0,3001,None)
+        tdSql.checkData(0,3501,None)   
+        tdSql.checkData(0,3801,None)   
+        tdSql.checkData(0,4091,None) 
+        tdSql.checkData(0,4093,None) 
+        tdSql.query("select * from stable_4096_3 where ts ='2020-09-10 20:26:40.000';")
+        tdSql.checkCols(4096)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,501,None)   
+        tdSql.checkData(0,1001,None)   
+        tdSql.checkData(0,1501,None)   
+        tdSql.checkData(0,2001,None)   
+        tdSql.checkData(0,2501,None)   
+        tdSql.checkData(0,3001,None)
+        tdSql.checkData(0,3501,None)   
+        tdSql.checkData(0,3801,None)   
+        tdSql.checkData(0,4091,None) 
+        tdSql.checkData(0,4093,None) 
+
+        endTime = time.time()
+        print("total time %ds" % (endTime - startTime))  
+
+
+    def stop(self):
+        tdSql.close()
+        tdLog.success("%s successfully executed" % __file__)
+
+
+tdCases.addWindows(__file__, TDTestCase())
+tdCases.addLinux(__file__, TDTestCase())
\ No newline at end of file
diff --git a/tests/pytest/import_merge/import_update_2.py b/tests/pytest/import_merge/import_update_2.py
new file mode 100644
index 0000000000000000000000000000000000000000..ff2f8a5e5cf6acd93b53f131c4551a285feffb2d
--- /dev/null
+++ b/tests/pytest/import_merge/import_update_2.py
@@ -0,0 +1,2273 @@
+###################################################################
+#           Copyright (c) 2016 by TAOS Technologies, Inc.
+#                     All rights reserved.
+#
+#  This file is proprietary and confidential to TAOS Technologies.
+#  No part of this file may be reproduced, stored, transmitted,
+#  disclosed or used in any form or by any means other than as
+#  expressly provided by the written permission from Jianhui Tao
+#
+###################################################################
+
+# -*- coding: utf-8 -*-
+
+import sys
+import taos
+from util.log import tdLog
+from util.cases import tdCases
+from util.sql import tdSql
+from util.dnodes import *
+import random
+import time
+
+
+class TDTestCase:
+    def init(self, conn, logSql):
+        tdLog.debug("start to execute %s" % __file__)
+        tdSql.init(conn.cursor(), logSql)
+
+        self.ts = 1600000000000
+        self.num = 50
+        self.num4096 = 5
+
+    def getBuildPath(self):
+        selfPath = os.path.dirname(os.path.realpath(__file__))
+
+        if ("community" in selfPath):
+            projPath = selfPath[:selfPath.find("community")]
+        else:
+            projPath = selfPath[:selfPath.find("tests")]
+
+        for root, dirs, files in os.walk(projPath):
+            if ("taosd" in files):
+                rootRealPath = os.path.dirname(os.path.realpath(root))
+                if ("packaging" not in rootRealPath):
+                    buildPath = root[:len(root)-len("/build/bin")]
+                    break
+        return buildPath
+
+    def run(self):
+        tdSql.prepare()   
+        # test case for https://jira.taosdata.com:18080/browse/TD-5062
+             
+        startTime = time.time() 
+
+        tdSql.execute('''drop database if exists test_updata_2 ;''')  
+        # update 0 不更新 ; update 1 覆盖更新 ;update 2 合并更新
+        tdLog.info("========== test database updata = 2 ==========") 
+        tdSql.execute('''create database test_updata_2 update 2 minrows 10 maxrows 200 ;''')   
+        tdSql.execute('''use test_updata_2;''')   
+        tdSql.execute('''create stable stable_1
+                    (ts timestamp , q_int int , q_bigint bigint , q_smallint smallint , q_tinyint tinyint, 
+                    q_bool bool , q_binary binary(10) , q_nchar nchar(10) , q_float float , q_double double , q_ts timestamp) 
+                    tags(loc nchar(20) , t_int int);''')
+        tdSql.execute('''create table table_1 using stable_1 tags('table_1' , '1' )''')
+        tdSql.execute('''create table table_2 using stable_1 tags('table_2' , '2' )''')
+        tdSql.execute('''create table table_3 using stable_1 tags('table_3' , '3' )''')
+
+        #regular table
+        tdSql.execute('''create table regular_table_1
+                    (ts timestamp , q_int int , q_bigint bigint , q_smallint smallint , q_tinyint tinyint, 
+                    q_bool bool , q_binary binary(10) , q_nchar nchar(10) , q_float float , q_double double , q_ts timestamp) ;''')
+        tdSql.execute('''create table regular_table_2
+                    (ts timestamp , q_int int , q_bigint bigint , q_smallint smallint , q_tinyint tinyint, 
+                    q_bool bool , q_binary binary(10) , q_nchar nchar(10) , q_float float , q_double double , q_ts timestamp) ;''')
+        tdSql.execute('''create table regular_table_3
+                    (ts timestamp , q_int int , q_bigint bigint , q_smallint smallint , q_tinyint tinyint, 
+                    q_bool bool , q_binary binary(10) , q_nchar nchar(10) , q_float float , q_double double , q_ts timestamp) ;''')
+               
+
+        tdLog.info("========== test1.1 : insert data , check data==========")   
+        tdLog.info("========== regular_table ==========") 
+        tdSql.execute('''insert into regular_table_1 values( %d , 0, 0, 0, 0, 0, 'binary-0', 'nchar-0', 0.000000, 0.000000, 1600000000000);''' %(self.ts - 200))
+        sql = '''select * from regular_table_1 where ts = %d ;''' %(self.ts - 200)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,0)   
+        tdSql.checkData(0,2,0)   
+        tdSql.checkData(0,3,0)   
+        tdSql.checkData(0,4,0)   
+        tdSql.checkData(0,5,'False')   
+        tdSql.checkData(0,6,'binary-0')   
+        tdSql.checkData(0,7,'nchar-0')
+        tdSql.checkData(0,8,0)   
+        tdSql.checkData(0,9,0)   
+        tdSql.checkData(0,10,'2020-09-13 20:26:40.000') 
+
+        tdSql.execute('''insert into regular_table_1 values( %d , NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL);''' %(self.ts + 200))
+        sql = '''select * from regular_table_1 where ts = %d ;''' %(self.ts + 200)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,2,None)   
+        tdSql.checkData(0,3,None)   
+        tdSql.checkData(0,4,None)   
+        tdSql.checkData(0,5,None)   
+        tdSql.checkData(0,6,None)   
+        tdSql.checkData(0,7,None)
+        tdSql.checkData(0,8,None)   
+        tdSql.checkData(0,9,None)   
+        tdSql.checkData(0,10,None) 
+
+        tdSql.execute('''insert into regular_table_1 values( %d , NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL);''' %(self.ts - 500))
+        sql = '''select * from regular_table_1 where ts = %d ;''' %(self.ts - 500)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,2,None)   
+        tdSql.checkData(0,3,None)   
+        tdSql.checkData(0,4,None)   
+        tdSql.checkData(0,5,None)   
+        tdSql.checkData(0,6,None)   
+        tdSql.checkData(0,7,None)
+        tdSql.checkData(0,8,None)   
+        tdSql.checkData(0,9,None)   
+        tdSql.checkData(0,10,None) 
+
+        tdSql.execute('''insert into regular_table_1 values( %d , NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL);''' %(self.ts + 500))
+        sql = '''select * from regular_table_1 where ts = %d ;''' %(self.ts + 500)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,2,None)   
+        tdSql.checkData(0,3,None)   
+        tdSql.checkData(0,4,None)   
+        tdSql.checkData(0,5,None)   
+        tdSql.checkData(0,6,None)   
+        tdSql.checkData(0,7,None)
+        tdSql.checkData(0,8,None)   
+        tdSql.checkData(0,9,None)   
+        tdSql.checkData(0,10,None) 
+
+        tdLog.info("========== stable ==========") 
+        tdSql.execute('''insert into table_1 values( %d , 0, 0, 0, 0, 0, 'binary-0', 'nchar-0', 0.000000, 0.000000, 1600000000000);''' %(self.ts - 200))
+        sql = '''select * from table_1 where ts = %d ;''' %(self.ts - 200)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,0)   
+        tdSql.checkData(0,2,0)   
+        tdSql.checkData(0,3,0)   
+        tdSql.checkData(0,4,0)   
+        tdSql.checkData(0,5,'False')   
+        tdSql.checkData(0,6,'binary-0')   
+        tdSql.checkData(0,7,'nchar-0')
+        tdSql.checkData(0,8,0)   
+        tdSql.checkData(0,9,0)   
+        tdSql.checkData(0,10,'2020-09-13 20:26:40.000') 
+        sql = '''select * from stable_1 where ts = %d ;''' %(self.ts - 200)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,0)   
+        tdSql.checkData(0,2,0)   
+        tdSql.checkData(0,3,0)   
+        tdSql.checkData(0,4,0)   
+        tdSql.checkData(0,5,'False')   
+        tdSql.checkData(0,6,'binary-0')   
+        tdSql.checkData(0,7,'nchar-0')
+        tdSql.checkData(0,8,0)   
+        tdSql.checkData(0,9,0)   
+        tdSql.checkData(0,10,'2020-09-13 20:26:40.000') 
+
+        tdSql.execute('''insert into table_1 values( %d , NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL);''' %(self.ts + 200))
+        sql = '''select * from table_1 where ts = %d ;''' %(self.ts + 200)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,2,None)   
+        tdSql.checkData(0,3,None)   
+        tdSql.checkData(0,4,None)   
+        tdSql.checkData(0,5,None)   
+        tdSql.checkData(0,6,None)   
+        tdSql.checkData(0,7,None)
+        tdSql.checkData(0,8,None)   
+        tdSql.checkData(0,9,None)   
+        tdSql.checkData(0,10,None) 
+        sql = '''select * from stable_1 where ts = %d ;''' %(self.ts + 200)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,2,None)   
+        tdSql.checkData(0,3,None)   
+        tdSql.checkData(0,4,None)   
+        tdSql.checkData(0,5,None)   
+        tdSql.checkData(0,6,None)   
+        tdSql.checkData(0,7,None)
+        tdSql.checkData(0,8,None)   
+        tdSql.checkData(0,9,None)   
+        tdSql.checkData(0,10,None)
+
+        tdSql.execute('''insert into table_1 values( %d , NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL);''' %(self.ts - 500))
+        sql = '''select * from table_1 where ts = %d ;''' %(self.ts - 500)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,2,None)   
+        tdSql.checkData(0,3,None)   
+        tdSql.checkData(0,4,None)   
+        tdSql.checkData(0,5,None)   
+        tdSql.checkData(0,6,None)   
+        tdSql.checkData(0,7,None)
+        tdSql.checkData(0,8,None)   
+        tdSql.checkData(0,9,None)   
+        tdSql.checkData(0,10,None) 
+        sql = '''select * from stable_1 where ts = %d ;''' %(self.ts - 500)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,2,None)   
+        tdSql.checkData(0,3,None)   
+        tdSql.checkData(0,4,None)   
+        tdSql.checkData(0,5,None)   
+        tdSql.checkData(0,6,None)   
+        tdSql.checkData(0,7,None)
+        tdSql.checkData(0,8,None)   
+        tdSql.checkData(0,9,None)   
+        tdSql.checkData(0,10,None) 
+
+        tdSql.execute('''insert into table_1 values( %d , NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL);''' %(self.ts + 500))
+        sql = '''select * from table_1 where ts = %d ;''' %(self.ts + 500)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,2,None)   
+        tdSql.checkData(0,3,None)   
+        tdSql.checkData(0,4,None)   
+        tdSql.checkData(0,5,None)   
+        tdSql.checkData(0,6,None)   
+        tdSql.checkData(0,7,None)
+        tdSql.checkData(0,8,None)   
+        tdSql.checkData(0,9,None)   
+        tdSql.checkData(0,10,None) 
+        sql = '''select * from stable_1 where ts = %d ;''' %(self.ts + 500)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,2,None)   
+        tdSql.checkData(0,3,None)   
+        tdSql.checkData(0,4,None)   
+        tdSql.checkData(0,5,None)   
+        tdSql.checkData(0,6,None)   
+        tdSql.checkData(0,7,None)
+        tdSql.checkData(0,8,None)   
+        tdSql.checkData(0,9,None)   
+        tdSql.checkData(0,10,None) 
+
+
+        tdLog.info("========== 4096 regular_table ==========") 
+        sql = "create table regular_table_4096_1 (ts timestamp, "
+        for i in range(500):
+            sql += "int_%d int, " % (i + 1)
+        for i in range(500,1000):
+            sql += "smallint_%d smallint, " % (i + 1)
+        for i in range(1000,1500):
+            sql += "tinyint_%d tinyint, " % (i + 1)
+        for i in range(1500,2000):
+            sql += "double_%d double, " % (i + 1)
+        for i in range(2000,2500):
+            sql += "float_%d float, " % (i + 1)
+        for i in range(2500,3000):
+            sql += "bool_%d bool, " % (i + 1)
+        for i in range(3000,3500):
+            sql += "bigint_%d bigint, " % (i + 1)
+        for i in range(3500,3800):
+            sql += "nchar_%d nchar(4), " % (i + 1)
+        for i in range(3800,4090):
+            sql += "binary_%d binary(10), " % (i + 1)
+        for i in range(4090,4094):
+            sql += "timestamp_%d timestamp, " % (i + 1)
+        sql += "col4095 binary(22))"  
+        tdLog.info(len(sql))      
+        tdSql.execute(sql)
+
+        for i in range(self.num4096):
+            sql = "insert into regular_table_4096_1 values(%d, "
+            for j in range(4090): 
+                str = "'%s', " % 'NULL'             
+                sql += str
+            for j in range(4090,4094):
+                str = "%s, " % (self.ts + j)                
+                sql += str
+            sql += "'%s')" % (self.ts + i)
+            tdSql.execute(sql % (self.ts + i))
+        tdSql.query('''select * from regular_table_4096_1 where ts = %d ;''' %(self.ts))
+        tdSql.checkCols(4096)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,501,None)   
+        tdSql.checkData(0,1001,None)   
+        tdSql.checkData(0,1501,None)   
+        tdSql.checkData(0,2001,None)   
+        tdSql.checkData(0,2501,None)   
+        tdSql.checkData(0,3001,None)
+        tdSql.checkData(0,3501,'NULL')   
+        tdSql.checkData(0,3801,'NULL')   
+        tdSql.checkData(0,4091,'2020-09-13 20:26:44.090') 
+        tdSql.checkData(0,4095,'1600000000000') 
+
+        sql = '''insert into regular_table_4096_1 (ts , int_1,smallint_501 , tinyint_1001 , double_1501 , float_2001 , bool_2501 ,
+                bigint_3001 , nchar_3501 , binary_3801 , timestamp_4091 , col4095 )
+                values('2020-09-10 20:26:40.000' , 1 , 501 , 101 , 1501 , 2001 , 1 , 3001 , '3501' , '3801' ,'2020-09-10 20:26:44.090','1500000000000');'''
+        tdSql.execute(sql)
+        tdSql.query("select * from regular_table_4096_1 where ts ='2020-09-10 20:26:40.000';")
+        tdSql.checkCols(4096)
+        tdSql.checkData(0,1,1)   
+        tdSql.checkData(0,501,501)   
+        tdSql.checkData(0,1001,101)   
+        tdSql.checkData(0,1501,1501)   
+        tdSql.checkData(0,2001,2001)   
+        tdSql.checkData(0,2501,'True')   
+        tdSql.checkData(0,3001,3001)
+        tdSql.checkData(0,3501,'3501')   
+        tdSql.checkData(0,3801,'3801')   
+        tdSql.checkData(0,4091,'2020-09-10 20:26:44.090') 
+        tdSql.checkData(0,4095,'1500000000000') 
+
+        tdLog.info("========== 4096 stable ==========") 
+        sql = "create stable stable_4096_1 (ts timestamp, "
+        for i in range(500):
+            sql += "int_%d int, " % (i + 1)
+        for i in range(500,1000):
+            sql += "smallint_%d smallint, " % (i + 1)
+        for i in range(1000,1500):
+            sql += "tinyint_%d tinyint, " % (i + 1)
+        for i in range(1500,2000):
+            sql += "double_%d double, " % (i + 1)
+        for i in range(2000,2500):
+            sql += "float_%d float, " % (i + 1)
+        for i in range(2500,3000):
+            sql += "bool_%d bool, " % (i + 1)
+        for i in range(3000,3500):
+            sql += "bigint_%d bigint, " % (i + 1)
+        for i in range(3500,3800):
+            sql += "nchar_%d nchar(4), " % (i + 1)
+        for i in range(3800,4090):
+            sql += "binary_%d binary(10), " % (i + 1)
+        for i in range(4090,4092):
+            sql += "timestamp_%d timestamp, " % (i + 1)
+        sql += " col4093 binary(22)) "  
+        sql += " tags (loc nchar(20),tag_1 int) "
+        tdLog.info(len(sql))      
+        tdSql.execute(sql)
+
+        sql = " create table table_4096_1 using stable_4096_1 tags ('table_4096_1',1); "
+        tdSql.execute(sql)
+
+        for i in range(self.num4096):
+            sql = "insert into table_4096_1 values(%d, "
+            for j in range(4090): 
+                str = "'%s', " % 'NULL'             
+                sql += str
+            for j in range(4090,4092):
+                str = "%s, " % (self.ts + j)                
+                sql += str
+            sql += "'%s')" % (self.ts + i)
+            tdSql.execute(sql % (self.ts + i))
+        tdSql.query('''select * from table_4096_1 where ts = %d ;''' %(self.ts))
+        tdSql.checkCols(4094)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,501,None)   
+        tdSql.checkData(0,1001,None)   
+        tdSql.checkData(0,1501,None)   
+        tdSql.checkData(0,2001,None)   
+        tdSql.checkData(0,2501,None)   
+        tdSql.checkData(0,3001,None)
+        tdSql.checkData(0,3501,'NULL')   
+        tdSql.checkData(0,3801,'NULL')   
+        tdSql.checkData(0,4091,'2020-09-13 20:26:44.090') 
+        tdSql.checkData(0,4093,'1600000000000')
+        tdSql.query('''select * from stable_4096_1 where ts = %d ;''' %(self.ts))
+        tdSql.checkCols(4096)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,501,None)   
+        tdSql.checkData(0,1001,None)   
+        tdSql.checkData(0,1501,None)   
+        tdSql.checkData(0,2001,None)   
+        tdSql.checkData(0,2501,None)   
+        tdSql.checkData(0,3001,None)
+        tdSql.checkData(0,3501,'NULL')   
+        tdSql.checkData(0,3801,'NULL')   
+        tdSql.checkData(0,4091,'2020-09-13 20:26:44.090') 
+        tdSql.checkData(0,4093,'1600000000000')
+
+        sql = '''insert into table_4096_1 (ts , int_1,smallint_501 , tinyint_1001 , double_1501 , float_2001 , bool_2501 ,
+                bigint_3001 , nchar_3501 , binary_3801 , timestamp_4091 , col4093 )
+                values('2020-09-10 20:26:40.000' , 1 , 501 , 101 , 1501 , 2001 , 1 , 3001 , '3501' , '3801' ,'2020-09-10 20:26:44.090','1500000000000');'''
+        tdSql.execute(sql)
+        tdSql.query("select * from table_4096_1 where ts ='2020-09-10 20:26:40.000';")
+        tdSql.checkCols(4094)
+        tdSql.checkData(0,1,1)   
+        tdSql.checkData(0,501,501)   
+        tdSql.checkData(0,1001,101)   
+        tdSql.checkData(0,1501,1501)   
+        tdSql.checkData(0,2001,2001)   
+        tdSql.checkData(0,2501,'True')   
+        tdSql.checkData(0,3001,3001)
+        tdSql.checkData(0,3501,'3501')   
+        tdSql.checkData(0,3801,'3801')   
+        tdSql.checkData(0,4091,'2020-09-10 20:26:44.090') 
+        tdSql.checkData(0,4093,'1500000000000') 
+        tdSql.query("select * from stable_4096_1 where ts ='2020-09-10 20:26:40.000';")
+        tdSql.checkCols(4096)
+        tdSql.checkData(0,1,1)   
+        tdSql.checkData(0,501,501)   
+        tdSql.checkData(0,1001,101)   
+        tdSql.checkData(0,1501,1501)   
+        tdSql.checkData(0,2001,2001)   
+        tdSql.checkData(0,2501,'True')   
+        tdSql.checkData(0,3001,3001)
+        tdSql.checkData(0,3501,'3501')   
+        tdSql.checkData(0,3801,'3801')   
+        tdSql.checkData(0,4091,'2020-09-10 20:26:44.090') 
+        tdSql.checkData(0,4093,'1500000000000') 
+
+        # minrows 10 maxrows 200
+        for i in range(self.num):        
+            tdSql.execute('''insert into regular_table_1 values(%d, %d, %d, %d, %d, 0, 'binary.%s', 'nchar.%s', %f, %f, %d)''' 
+                        % (self.ts -100 + i, i, i, i, i, i, i, i, i, self.ts -100 + i))
+            tdSql.execute('''insert into regular_table_1 values(%d, %d, %d, %d, %d, false, 'binary%s', 'nchar%s', %f, %f, %d)''' 
+                        % (self.ts + i, random.randint(-2147483647, 2147483647), 
+                        random.randint(-9223372036854775807, 9223372036854775807), random.randint(-32767, 32767),
+                        random.randint(-127, 127), random.randint(-100, 100), random.randint(-10000, 10000), 
+                        random.uniform(-100000,100000), random.uniform(-1000000000,1000000000), self.ts + i))
+
+            tdSql.execute('''insert into table_1 values(%d, %d, %d, %d, %d, 0, 'binary.%s', 'nchar.%s', %f, %f, %d)''' 
+                        % (self.ts -100 + i, i, i, i, i, i, i, i, i, self.ts -100 + i))
+            tdSql.execute('''insert into table_1 values(%d, %d, %d, %d, %d, false, 'binary%s', 'nchar%s', %f, %f, %d)''' 
+                        % (self.ts + i, random.randint(-2147483647, 2147483647), 
+                        random.randint(-9223372036854775807, 9223372036854775807), random.randint(-32767, 32767),
+                        random.randint(-127, 127), random.randint(-100, 100), random.randint(-10000, 10000), 
+                        random.uniform(-100000,100000), random.uniform(-1000000000,1000000000), self.ts + i))
+
+        tdLog.info("========== regular_table ==========") 
+        tdSql.execute('''insert into regular_table_1 values( %d , NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL);''' %(self.ts - 200))
+        sql = '''select * from regular_table_1 where ts = %d ;''' %(self.ts - 200)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,0)   
+        tdSql.checkData(0,2,0)   
+        tdSql.checkData(0,3,0)   
+        tdSql.checkData(0,4,0)   
+        tdSql.checkData(0,5,'False')   
+        tdSql.checkData(0,6,'binary-0')   
+        tdSql.checkData(0,7,'nchar-0')
+        tdSql.checkData(0,8,0)   
+        tdSql.checkData(0,9,0)   
+        tdSql.checkData(0,10,'2020-09-13 20:26:40.000') 
+
+        tdSql.execute('''insert into regular_table_1 values( %d , 0, 0, 0, 0, 0, 'binary+0', 'nchar+0', 0.000000, 0.000000, 1600000000000);''' %(self.ts + 200))
+        sql = '''select * from regular_table_1 where ts = %d ;''' %(self.ts + 200)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,0)   
+        tdSql.checkData(0,2,0)   
+        tdSql.checkData(0,3,0)   
+        tdSql.checkData(0,4,0)   
+        tdSql.checkData(0,5,'False')   
+        tdSql.checkData(0,6,'binary+0')   
+        tdSql.checkData(0,7,'nchar+0')
+        tdSql.checkData(0,8,0)   
+        tdSql.checkData(0,9,0)   
+        tdSql.checkData(0,10,'2020-09-13 20:26:40.000') 
+        tdSql.execute('''insert into regular_table_1 values( %d , 1, 1, 1, 1, 1, 'binary+1', 'nchar+1', 1.000000, 1.000000, 1600000001000);''' %(self.ts + 200))
+        sql = '''select * from regular_table_1 where ts = %d ;''' %(self.ts + 200)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,1)   
+        tdSql.checkData(0,2,1)   
+        tdSql.checkData(0,3,1)   
+        tdSql.checkData(0,4,1)   
+        tdSql.checkData(0,5,'True')   
+        tdSql.checkData(0,6,'binary+1')   
+        tdSql.checkData(0,7,'nchar+1')
+        tdSql.checkData(0,8,1)   
+        tdSql.checkData(0,9,1)   
+        tdSql.checkData(0,10,'2020-09-13 20:26:41.000') 
+
+        tdSql.error('''insert into regular_table_1 values( %d , -2147483648, -9223372036854775807, -32767, -127, 0, 'binary-0', 'nchar-0', 0.000000, 0.000000, 1600000000000);''' %(self.ts - 500))
+        tdSql.error('''insert into regular_table_1 values( %d , -2147483647, -9223372036854775808, -32767, -127, 0, 'binary-0', 'nchar-0', 0.000000, 0.000000, 1600000000000);''' %(self.ts - 500))
+        tdSql.error('''insert into regular_table_1 values( %d , -2147483647, -9223372036854775807, -32768, -127, 0, 'binary-0', 'nchar-0', 0.000000, 0.000000, 1600000000000);''' %(self.ts - 500))
+        tdSql.error('''insert into regular_table_1 values( %d , -2147483647, -9223372036854775807, -32767, -128, 0, 'binary-0', 'nchar-0', 0.000000, 0.000000, 1600000000000);''' %(self.ts - 500))
+        tdSql.error('''insert into regular_table_1 values( %d , -2147483647, -9223372036854775807, -32767, -127, 0, 'binary-0123', 'nchar-0', 0.000000, 0.000000, 1600000000000);''' %(self.ts - 500))
+        tdSql.error('''insert into regular_table_1 values( %d , -2147483647, -9223372036854775807, -32767, -127, 0, 'binary-0', 'nchar-01234', 0.000000, 0.000000, 1600000000000);''' %(self.ts - 500))
+        
+        tdSql.execute('''insert into regular_table_1 values( %d , -2147483647, -9223372036854775807, -32767, -127, 0, 'binary-012', 'nchar-0123', 0.000000, 0.000000, 1600000000000);''' %(self.ts - 500))
+        sql = '''select * from regular_table_1 where ts = %d ;''' %(self.ts - 500)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,-2147483647)   
+        tdSql.checkData(0,2,-9223372036854775807)   
+        tdSql.checkData(0,3,-32767)   
+        tdSql.checkData(0,4,-127)   
+        tdSql.checkData(0,5,'False')   
+        tdSql.checkData(0,6,'binary-012')   
+        tdSql.checkData(0,7,'nchar-0123')
+        tdSql.checkData(0,8,0)   
+        tdSql.checkData(0,9,0)   
+        tdSql.checkData(0,10,'2020-09-13 20:26:40.000') 
+
+        tdSql.error('''insert into regular_table_1 values( %d , 2147483648, 9223372036854775807, 32767, 127, 0, 'binary+0', 'nchar+0', 0.000000, 0.000000, 1600000000000);''' %(self.ts + 500))
+        tdSql.error('''insert into regular_table_1 values( %d , 2147483647, 9223372036854775808, 32767, 127, 0, 'binary+0', 'nchar+0', 0.000000, 0.000000, 1600000000000);''' %(self.ts + 500))
+        tdSql.error('''insert into regular_table_1 values( %d , 2147483647, 9223372036854775807, 32768, 127, 0, 'binary+0', 'nchar+0', 0.000000, 0.000000, 1600000000000);''' %(self.ts + 500))
+        tdSql.error('''insert into regular_table_1 values( %d , 2147483647, 9223372036854775807, 32767, 128, 0, 'binary+0', 'nchar+0', 0.000000, 0.000000, 1600000000000);''' %(self.ts + 500))
+        tdSql.error('''insert into regular_table_1 values( %d , 2147483647, 9223372036854775807, 32767, 127, 0, 'binary+0123', 'nchar+0', 0.000000, 0.000000, 1600000000000);''' %(self.ts + 500))
+        tdSql.error('''insert into regular_table_1 values( %d , 2147483647, 9223372036854775807, 32767, 127, 0, 'binary+0', 'nchar+01234', 0.000000, 0.000000, 1600000000000);''' %(self.ts + 500))
+        
+        tdSql.execute('''insert into regular_table_1 values( %d , 2147483647, 9223372036854775807, 32767, 127, 0, 'binary+012', 'nchar+0123', 0.000000, 0.000000, 1600000000000);''' %(self.ts + 500))
+        sql = '''select * from regular_table_1 where ts = %d ;''' %(self.ts + 500)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,2147483647)   
+        tdSql.checkData(0,2,9223372036854775807)   
+        tdSql.checkData(0,3,32767)   
+        tdSql.checkData(0,4,127)   
+        tdSql.checkData(0,5,'False')   
+        tdSql.checkData(0,6,'binary+012')   
+        tdSql.checkData(0,7,'nchar+0123')
+        tdSql.checkData(0,8,0)   
+        tdSql.checkData(0,9,0)   
+        tdSql.checkData(0,10,'2020-09-13 20:26:40.000') 
+        tdSql.execute('''insert into regular_table_1 values( %d , -2147483647, -9223372036854775807, -32767, -127, 0, 'binary-012', 'nchar-0123', 0.000000, 0.000000, 1600000000000);''' %(self.ts + 500))
+        sql = '''select * from regular_table_1 where ts = %d ;''' %(self.ts + 500)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,-2147483647)   
+        tdSql.checkData(0,2,-9223372036854775807)   
+        tdSql.checkData(0,3,-32767)   
+        tdSql.checkData(0,4,-127)   
+        tdSql.checkData(0,5,'False')   
+        tdSql.checkData(0,6,'binary-012')   
+        tdSql.checkData(0,7,'nchar-0123')
+        tdSql.checkData(0,8,0)   
+        tdSql.checkData(0,9,0)   
+        tdSql.checkData(0,10,'2020-09-13 20:26:40.000') 
+
+        tdLog.info("========== stable ==========") 
+        tdSql.execute('''insert into table_1 values( %d , NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL);''' %(self.ts - 200))
+        sql = '''select * from table_1 where ts = %d ;''' %(self.ts - 200)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,0)   
+        tdSql.checkData(0,2,0)   
+        tdSql.checkData(0,3,0)   
+        tdSql.checkData(0,4,0)   
+        tdSql.checkData(0,5,'False')   
+        tdSql.checkData(0,6,'binary-0')   
+        tdSql.checkData(0,7,'nchar-0')
+        tdSql.checkData(0,8,0)   
+        tdSql.checkData(0,9,0)   
+        tdSql.checkData(0,10,'2020-09-13 20:26:40.000') 
+        sql = '''select * from stable_1 where ts = %d ;''' %(self.ts - 200)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,0)   
+        tdSql.checkData(0,2,0)   
+        tdSql.checkData(0,3,0)   
+        tdSql.checkData(0,4,0)   
+        tdSql.checkData(0,5,'False')   
+        tdSql.checkData(0,6,'binary-0')   
+        tdSql.checkData(0,7,'nchar-0')
+        tdSql.checkData(0,8,0)   
+        tdSql.checkData(0,9,0)   
+        tdSql.checkData(0,10,'2020-09-13 20:26:40.000') 
+
+        tdSql.execute('''insert into table_1 values( %d , 0, 0, 0, 0, 0, 'binary+0', 'nchar+0', 0.000000, 0.000000, 1600000000000);''' %(self.ts + 200))
+        sql = '''select * from table_1 where ts = %d ;''' %(self.ts + 200)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,0)   
+        tdSql.checkData(0,2,0)   
+        tdSql.checkData(0,3,0)   
+        tdSql.checkData(0,4,0)   
+        tdSql.checkData(0,5,'False')   
+        tdSql.checkData(0,6,'binary+0')   
+        tdSql.checkData(0,7,'nchar+0')
+        tdSql.checkData(0,8,0)   
+        tdSql.checkData(0,9,0)  
+        tdSql.checkData(0,10,'2020-09-13 20:26:40.000') 
+        sql = '''select * from stable_1 where ts = %d ;''' %(self.ts + 200)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,0)   
+        tdSql.checkData(0,2,0)   
+        tdSql.checkData(0,3,0)   
+        tdSql.checkData(0,4,0)   
+        tdSql.checkData(0,5,'False')   
+        tdSql.checkData(0,6,'binary+0')   
+        tdSql.checkData(0,7,'nchar+0')
+        tdSql.checkData(0,8,0)   
+        tdSql.checkData(0,9,0)  
+        tdSql.checkData(0,10,'2020-09-13 20:26:40.000') 
+
+        tdSql.execute('''insert into table_1 values( %d , NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL);''' %(self.ts + 200))
+        sql = '''select * from table_1 where ts = %d ;''' %(self.ts + 200)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,0)   
+        tdSql.checkData(0,2,0)   
+        tdSql.checkData(0,3,0)   
+        tdSql.checkData(0,4,0)   
+        tdSql.checkData(0,5,'False')   
+        tdSql.checkData(0,6,'binary+0')   
+        tdSql.checkData(0,7,'nchar+0')
+        tdSql.checkData(0,8,0)   
+        tdSql.checkData(0,9,0)   
+        tdSql.checkData(0,10,'2020-09-13 20:26:40.000') 
+        sql = '''select * from stable_1 where ts = %d ;''' %(self.ts + 200)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,0)   
+        tdSql.checkData(0,2,0)   
+        tdSql.checkData(0,3,0)   
+        tdSql.checkData(0,4,0)   
+        tdSql.checkData(0,5,'False')   
+        tdSql.checkData(0,6,'binary+0')   
+        tdSql.checkData(0,7,'nchar+0')
+        tdSql.checkData(0,8,0)   
+        tdSql.checkData(0,9,0)   
+        tdSql.checkData(0,10,'2020-09-13 20:26:40.000') 
+
+        tdSql.error('''insert into table_1 values( %d , -2147483648, -9223372036854775807, -32767, -127, 0, 'binary-0', 'nchar-0', 0.000000, 0.000000, 1600000000000);''' %(self.ts - 500))
+        tdSql.error('''insert into table_1 values( %d , -2147483647, -9223372036854775808, -32767, -127, 0, 'binary-0', 'nchar-0', 0.000000, 0.000000, 1600000000000);''' %(self.ts - 500))
+        tdSql.error('''insert into table_1 values( %d , -2147483647, -9223372036854775807, -32768, -127, 0, 'binary-0', 'nchar-0', 0.000000, 0.000000, 1600000000000);''' %(self.ts - 500))
+        tdSql.error('''insert into table_1 values( %d , -2147483647, -9223372036854775807, -32767, -128, 0, 'binary-0', 'nchar-0', 0.000000, 0.000000, 1600000000000);''' %(self.ts - 500))
+        tdSql.error('''insert into table_1 values( %d , -2147483647, -9223372036854775807, -32767, -127, 0, 'binary-0123', 'nchar-0', 0.000000, 0.000000, 1600000000000);''' %(self.ts - 500))
+        tdSql.error('''insert into table_1 values( %d , -2147483647, -9223372036854775807, -32767, -127, 0, 'binary-0', 'nchar-01234', 0.000000, 0.000000, 1600000000000);''' %(self.ts - 500))
+        
+        tdSql.execute('''insert into table_1 values( %d , -2147483647, -9223372036854775807, -32767, -127, 0, 'binary-012', 'nchar-0123', 0.000000, 0.000000, 1600000000000);''' %(self.ts - 500))
+        sql = '''select * from table_1 where ts = %d ;''' %(self.ts - 500)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,-2147483647)   
+        tdSql.checkData(0,2,-9223372036854775807)   
+        tdSql.checkData(0,3,-32767)   
+        tdSql.checkData(0,4,-127)   
+        tdSql.checkData(0,5,'False')   
+        tdSql.checkData(0,6,'binary-012')   
+        tdSql.checkData(0,7,'nchar-0123')
+        tdSql.checkData(0,8,0)   
+        tdSql.checkData(0,9,0)   
+        tdSql.checkData(0,10,'2020-09-13 20:26:40.000') 
+        sql = '''select * from stable_1 where ts = %d ;''' %(self.ts - 500)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,-2147483647)   
+        tdSql.checkData(0,2,-9223372036854775807)   
+        tdSql.checkData(0,3,-32767)   
+        tdSql.checkData(0,4,-127)   
+        tdSql.checkData(0,5,'False')   
+        tdSql.checkData(0,6,'binary-012')   
+        tdSql.checkData(0,7,'nchar-0123')
+        tdSql.checkData(0,8,0)   
+        tdSql.checkData(0,9,0)   
+        tdSql.checkData(0,10,'2020-09-13 20:26:40.000') 
+
+        tdSql.error('''insert into table_1 values( %d , 2147483648, 9223372036854775807, 32767, 127, 0, 'binary+0', 'nchar+0', 0.000000, 0.000000, 1600000000000);''' %(self.ts + 500))
+        tdSql.error('''insert into table_1 values( %d , 2147483647, 9223372036854775808, 32767, 127, 0, 'binary+0', 'nchar+0', 0.000000, 0.000000, 1600000000000);''' %(self.ts + 500))
+        tdSql.error('''insert into table_1 values( %d , 2147483647, 9223372036854775807, 32768, 127, 0, 'binary+0', 'nchar+0', 0.000000, 0.000000, 1600000000000);''' %(self.ts + 500))
+        tdSql.error('''insert into table_1 values( %d , 2147483647, 9223372036854775807, 32767, 128, 0, 'binary+0', 'nchar+0', 0.000000, 0.000000, 1600000000000);''' %(self.ts + 500))
+        tdSql.error('''insert into table_1 values( %d , 2147483647, 9223372036854775807, 32767, 127, 0, 'binary+0123', 'nchar+0', 0.000000, 0.000000, 1600000000000);''' %(self.ts + 500))
+        tdSql.error('''insert into table_1 values( %d , 2147483647, 9223372036854775807, 32767, 127, 0, 'binary+0', 'nchar+01234', 0.000000, 0.000000, 1600000000000);''' %(self.ts + 500))
+        
+        tdSql.execute('''insert into table_1 values( %d , 2147483647, 9223372036854775807, 32767, 127, 0, 'binary+012', 'nchar+0123', 0.000000, 0.000000, 1600000000000);''' %(self.ts + 500))
+        sql = '''select * from table_1 where ts = %d ;''' %(self.ts + 500)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,2147483647)   
+        tdSql.checkData(0,2,9223372036854775807)   
+        tdSql.checkData(0,3,32767)   
+        tdSql.checkData(0,4,127)   
+        tdSql.checkData(0,5,'False')   
+        tdSql.checkData(0,6,'binary+012')   
+        tdSql.checkData(0,7,'nchar+0123')
+        tdSql.checkData(0,8,0)   
+        tdSql.checkData(0,9,0)   
+        tdSql.checkData(0,10,'2020-09-13 20:26:40.000') 
+        sql = '''select * from stable_1 where ts = %d ;''' %(self.ts + 500)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,2147483647)   
+        tdSql.checkData(0,2,9223372036854775807)   
+        tdSql.checkData(0,3,32767)   
+        tdSql.checkData(0,4,127)   
+        tdSql.checkData(0,5,'False')   
+        tdSql.checkData(0,6,'binary+012')   
+        tdSql.checkData(0,7,'nchar+0123')
+        tdSql.checkData(0,8,0)   
+        tdSql.checkData(0,9,0)   
+        tdSql.checkData(0,10,'2020-09-13 20:26:40.000') 
+        tdSql.execute('''insert into table_1 values( %d , -2147483647, -9223372036854775807, -32767, -127, 0, 'binary-012', 'nchar-0123', 0.000000, 0.000000, 1600000000000);''' %(self.ts + 500))
+        sql = '''select * from table_1 where ts = %d ;''' %(self.ts + 500)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,-2147483647)   
+        tdSql.checkData(0,2,-9223372036854775807)   
+        tdSql.checkData(0,3,-32767)   
+        tdSql.checkData(0,4,-127)   
+        tdSql.checkData(0,5,'False')   
+        tdSql.checkData(0,6,'binary-012')   
+        tdSql.checkData(0,7,'nchar-0123')
+        tdSql.checkData(0,8,0)   
+        tdSql.checkData(0,9,0)   
+        tdSql.checkData(0,10,'2020-09-13 20:26:40.000') 
+        sql = '''select * from stable_1 where ts = %d ;''' %(self.ts + 500)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,-2147483647)   
+        tdSql.checkData(0,2,-9223372036854775807)   
+        tdSql.checkData(0,3,-32767)   
+        tdSql.checkData(0,4,-127)   
+        tdSql.checkData(0,5,'False')   
+        tdSql.checkData(0,6,'binary-012')   
+        tdSql.checkData(0,7,'nchar-0123')
+        tdSql.checkData(0,8,0)   
+        tdSql.checkData(0,9,0)   
+        tdSql.checkData(0,10,'2020-09-13 20:26:40.000') 
+
+        tdLog.info("========== 4096 regular_table ==========") 
+        sql = '''insert into regular_table_4096_1 (ts , int_1,smallint_501 , tinyint_1001 , double_1501 , float_2001 , bool_2501 ,
+                bigint_3001 , nchar_3501 , binary_3801 , timestamp_4091 , col4095 )
+                values('2020-09-13 20:26:40.000' , 1 , 501 , 101 , 1501 , 2001 , 1 , 3001 , '3501' , '3801' ,'2020-09-13 20:26:44.090','1600000000000');'''
+        tdSql.execute(sql)
+        tdSql.query("select * from regular_table_4096_1 where ts ='2020-09-13 20:26:40.000';")
+        tdSql.checkCols(4096)
+        tdSql.checkData(0,1,1)   
+        tdSql.checkData(0,501,501)   
+        tdSql.checkData(0,1001,101)   
+        tdSql.checkData(0,1501,1501)   
+        tdSql.checkData(0,2001,2001)   
+        tdSql.checkData(0,2501,'True')   
+        tdSql.checkData(0,3001,3001)
+        tdSql.checkData(0,3501,'3501')   
+        tdSql.checkData(0,3801,'3801')   
+        tdSql.checkData(0,4091,'2020-09-13 20:26:44.090') 
+        tdSql.checkData(0,4095,'1600000000000')
+
+        sql = '''insert into regular_table_4096_1 (ts , int_1,smallint_501 , tinyint_1001 , double_1501 , float_2001 , bool_2501 ,
+                bigint_3001 , nchar_3501 , binary_3801 , timestamp_4091 , col4095 )
+                values('2020-09-10 20:26:40.000' , NULL , NULL , NULL , NULL , NULL , NULL , NULL , NULL , NULL , NULL , NULL);'''
+        tdSql.execute(sql)
+        tdSql.query("select * from regular_table_4096_1 where ts ='2020-09-10 20:26:40.000';")
+        tdSql.checkCols(4096)
+        tdSql.checkData(0,1,1)   
+        tdSql.checkData(0,501,501)   
+        tdSql.checkData(0,1001,101)   
+        tdSql.checkData(0,1501,1501)   
+        tdSql.checkData(0,2001,2001)   
+        tdSql.checkData(0,2501,'True')   
+        tdSql.checkData(0,3001,3001)
+        tdSql.checkData(0,3501,'3501')   
+        tdSql.checkData(0,3801,'3801')   
+        tdSql.checkData(0,4091,'2020-09-10 20:26:44.090') 
+        tdSql.checkData(0,4095,'1500000000000')
+
+        sql = '''insert into regular_table_4096_1 (ts , int_1,smallint_501 , tinyint_1001 , double_1501 , float_2001 , bool_2501 ,
+                bigint_3001 , nchar_3501 , binary_3801 , timestamp_4091 , col4095 )
+                values('2020-09-13 20:26:40.000' , 2 , 502 , 102 , 1502 , 2002 , 0 , 3002 , '3502' , '3802' ,'2020-09-13 20:26:44.092','1600000002000');'''
+        tdSql.execute(sql)
+        tdSql.query("select * from regular_table_4096_1 where ts ='2020-09-13 20:26:40.000';")
+        tdSql.checkCols(4096)
+        tdSql.checkData(0,1,2)   
+        tdSql.checkData(0,501,502)   
+        tdSql.checkData(0,1001,102)   
+        tdSql.checkData(0,1501,1502)   
+        tdSql.checkData(0,2001,2002)   
+        tdSql.checkData(0,2501,'False')   
+        tdSql.checkData(0,3001,3002)
+        tdSql.checkData(0,3501,'3502')   
+        tdSql.checkData(0,3801,'3802')   
+        tdSql.checkData(0,4091,'2020-09-13 20:26:44.092') 
+        tdSql.checkData(0,4095,'1600000002000') 
+
+        tdLog.info("========== 4096 stable ==========") 
+        sql = '''insert into table_4096_1 (ts , int_1,smallint_501 , tinyint_1001 , double_1501 , float_2001 , bool_2501 ,
+                bigint_3001 , nchar_3501 , binary_3801 , timestamp_4091 , col4093 )
+                values('2020-09-13 20:26:40.000' , 1 , 501 , 101 , 1501 , 2001 , 1 , 3001 , '3501' , '3801' ,'2020-09-13 20:26:44.090','1600000000000');'''
+        tdSql.execute(sql)
+        tdSql.query("select * from table_4096_1 where ts ='2020-09-13 20:26:40.000';")
+        tdSql.checkCols(4094)
+        tdSql.checkData(0,1,1)   
+        tdSql.checkData(0,501,501)   
+        tdSql.checkData(0,1001,101)   
+        tdSql.checkData(0,1501,1501)   
+        tdSql.checkData(0,2001,2001)   
+        tdSql.checkData(0,2501,'True')   
+        tdSql.checkData(0,3001,3001)
+        tdSql.checkData(0,3501,'3501')   
+        tdSql.checkData(0,3801,'3801')     
+        tdSql.checkData(0,4091,'2020-09-13 20:26:44.090') 
+        tdSql.checkData(0,4093,'1600000000000')
+        tdSql.query("select * from stable_4096_1 where ts ='2020-09-13 20:26:40.000';")
+        tdSql.checkCols(4096)
+        tdSql.checkData(0,1,1)   
+        tdSql.checkData(0,501,501)   
+        tdSql.checkData(0,1001,101)   
+        tdSql.checkData(0,1501,1501)   
+        tdSql.checkData(0,2001,2001)   
+        tdSql.checkData(0,2501,'True')   
+        tdSql.checkData(0,3001,3001)
+        tdSql.checkData(0,3501,'3501')   
+        tdSql.checkData(0,3801,'3801')     
+        tdSql.checkData(0,4091,'2020-09-13 20:26:44.090') 
+        tdSql.checkData(0,4093,'1600000000000')
+
+        sql = '''insert into table_4096_1 (ts , int_1,smallint_501 , tinyint_1001 , double_1501 , float_2001 , bool_2501 ,
+                bigint_3001 , nchar_3501 , binary_3801 , timestamp_4091 , col4093 )
+                values('2020-09-10 20:26:40.000' , NULL , NULL , NULL , NULL , NULL , NULL , NULL , NULL , NULL , NULL , NULL);'''
+        tdSql.execute(sql)
+        tdSql.query("select * from table_4096_1 where ts ='2020-09-10 20:26:40.000';")
+        tdSql.checkCols(4094)
+        tdSql.checkData(0,1,1)   
+        tdSql.checkData(0,501,501)   
+        tdSql.checkData(0,1001,101)   
+        tdSql.checkData(0,1501,1501)   
+        tdSql.checkData(0,2001,2001)   
+        tdSql.checkData(0,2501,'True')   
+        tdSql.checkData(0,3001,3001)
+        tdSql.checkData(0,3501,'3501')   
+        tdSql.checkData(0,3801,'3801')   
+        tdSql.checkData(0,4091,'2020-09-10 20:26:44.090') 
+        tdSql.checkData(0,4093,'1500000000000') 
+        tdSql.query("select * from stable_4096_1 where ts ='2020-09-10 20:26:40.000';")
+        tdSql.checkCols(4096)
+        tdSql.checkData(0,1,1)   
+        tdSql.checkData(0,501,501)   
+        tdSql.checkData(0,1001,101)   
+        tdSql.checkData(0,1501,1501)   
+        tdSql.checkData(0,2001,2001)   
+        tdSql.checkData(0,2501,'True')   
+        tdSql.checkData(0,3001,3001)
+        tdSql.checkData(0,3501,'3501')   
+        tdSql.checkData(0,3801,'3801')   
+        tdSql.checkData(0,4091,'2020-09-10 20:26:44.090') 
+        tdSql.checkData(0,4093,'1500000000000') 
+
+        sql = '''insert into table_4096_1 (ts , int_1,smallint_501 , tinyint_1001 , double_1501 , float_2001 , bool_2501 ,
+                bigint_3001 , nchar_3501 , binary_3801 , timestamp_4091 , col4093 )
+                values('2020-09-13 20:26:40.000' , 2 , 502 , 102 , 1502 , 2002 , 0 , 3002 , '3502' , '3802' ,'2020-09-13 20:26:44.092','1600000002000');'''
+        tdSql.execute(sql)
+        tdSql.query("select * from table_4096_1 where ts ='2020-09-13 20:26:40.000';")
+        tdSql.checkCols(4094)
+        tdSql.checkData(0,1,2)   
+        tdSql.checkData(0,501,502)   
+        tdSql.checkData(0,1001,102)   
+        tdSql.checkData(0,1501,1502)   
+        tdSql.checkData(0,2001,2002)   
+        tdSql.checkData(0,2501,'False')   
+        tdSql.checkData(0,3001,3002)
+        tdSql.checkData(0,3501,'3502')   
+        tdSql.checkData(0,3801,'3802')   
+        tdSql.checkData(0,4091,'2020-09-13 20:26:44.092') 
+        tdSql.checkData(0,4093,'1600000002000') 
+        tdSql.query("select * from stable_4096_1 where ts ='2020-09-13 20:26:40.000';")
+        tdSql.checkCols(4096)
+        tdSql.checkData(0,1,2)   
+        tdSql.checkData(0,501,502)   
+        tdSql.checkData(0,1001,102)   
+        tdSql.checkData(0,1501,1502)   
+        tdSql.checkData(0,2001,2002)   
+        tdSql.checkData(0,2501,'False')   
+        tdSql.checkData(0,3001,3002)
+        tdSql.checkData(0,3501,'3502')   
+        tdSql.checkData(0,3801,'3802')   
+        tdSql.checkData(0,4091,'2020-09-13 20:26:44.092') 
+        tdSql.checkData(0,4093,'1600000002000') 
+        
+
+        tdLog.info("========== test1.2 : insert data , taosdemo force data dropping disk , check data==========")
+        tdLog.info("========== regular_table ==========") 
+        tdSql.execute('''insert into regular_table_2 values( %d , 0, 0, 0, 0, 0, 'binary-0', 'nchar-0', 0.000000, 0.000000, 1600000000000);''' %(self.ts - 200))
+        sql = '''select * from regular_table_2 where ts = %d ;''' %(self.ts - 200)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,0)   
+        tdSql.checkData(0,2,0)   
+        tdSql.checkData(0,3,0)   
+        tdSql.checkData(0,4,0)   
+        tdSql.checkData(0,5,'False')   
+        tdSql.checkData(0,6,'binary-0')   
+        tdSql.checkData(0,7,'nchar-0')
+        tdSql.checkData(0,8,0)   
+        tdSql.checkData(0,9,0)   
+        tdSql.checkData(0,10,'2020-09-13 20:26:40.000') 
+
+        tdSql.execute('''insert into regular_table_2 values( %d , NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL);''' %(self.ts + 200))
+        sql = '''select * from regular_table_2 where ts = %d ;''' %(self.ts + 200)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,2,None)   
+        tdSql.checkData(0,3,None)   
+        tdSql.checkData(0,4,None)   
+        tdSql.checkData(0,5,None)   
+        tdSql.checkData(0,6,None)   
+        tdSql.checkData(0,7,None)
+        tdSql.checkData(0,8,None)   
+        tdSql.checkData(0,9,None)   
+        tdSql.checkData(0,10,None) 
+
+        tdSql.execute('''insert into regular_table_2 values( %d , NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL);''' %(self.ts - 500))
+        sql = '''select * from regular_table_2 where ts = %d ;''' %(self.ts - 500)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,2,None)   
+        tdSql.checkData(0,3,None)   
+        tdSql.checkData(0,4,None)   
+        tdSql.checkData(0,5,None)   
+        tdSql.checkData(0,6,None)   
+        tdSql.checkData(0,7,None)
+        tdSql.checkData(0,8,None)   
+        tdSql.checkData(0,9,None)   
+        tdSql.checkData(0,10,None) 
+
+        tdSql.execute('''insert into regular_table_2 values( %d , NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL);''' %(self.ts + 500))
+        sql = '''select * from regular_table_2 where ts = %d ;''' %(self.ts + 500)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,2,None)   
+        tdSql.checkData(0,3,None)   
+        tdSql.checkData(0,4,None)   
+        tdSql.checkData(0,5,None)   
+        tdSql.checkData(0,6,None)   
+        tdSql.checkData(0,7,None)
+        tdSql.checkData(0,8,None)   
+        tdSql.checkData(0,9,None)   
+        tdSql.checkData(0,10,None) 
+
+
+        tdLog.info("========== stable ==========") 
+        tdSql.execute('''insert into table_2 values( %d , 0, 0, 0, 0, 0, 'binary-0', 'nchar-0', 0.000000, 0.000000, 1600000000000);''' %(self.ts - 200))
+        sql = '''select * from table_2 where ts = %d ;''' %(self.ts - 200)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,0)   
+        tdSql.checkData(0,2,0)   
+        tdSql.checkData(0,3,0)   
+        tdSql.checkData(0,4,0)   
+        tdSql.checkData(0,5,'False')   
+        tdSql.checkData(0,6,'binary-0')   
+        tdSql.checkData(0,7,'nchar-0')
+        tdSql.checkData(0,8,0)   
+        tdSql.checkData(0,9,0)   
+        tdSql.checkData(0,10,'2020-09-13 20:26:40.000') 
+        sql = '''select * from stable_1 where loc = 'table_2' and ts = %d ;''' %(self.ts - 200)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,0)   
+        tdSql.checkData(0,2,0)   
+        tdSql.checkData(0,3,0)   
+        tdSql.checkData(0,4,0)   
+        tdSql.checkData(0,5,'False')   
+        tdSql.checkData(0,6,'binary-0')   
+        tdSql.checkData(0,7,'nchar-0')
+        tdSql.checkData(0,8,0)   
+        tdSql.checkData(0,9,0)   
+        tdSql.checkData(0,10,'2020-09-13 20:26:40.000') 
+
+        tdSql.execute('''insert into table_2 values( %d , NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL);''' %(self.ts + 200))
+        sql = '''select * from table_2 where ts = %d ;''' %(self.ts + 200)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,2,None)   
+        tdSql.checkData(0,3,None)   
+        tdSql.checkData(0,4,None)   
+        tdSql.checkData(0,5,None)   
+        tdSql.checkData(0,6,None)   
+        tdSql.checkData(0,7,None)
+        tdSql.checkData(0,8,None)   
+        tdSql.checkData(0,9,None)   
+        tdSql.checkData(0,10,None) 
+        sql = '''select * from stable_1 where loc = 'table_2' and ts = %d ;''' %(self.ts + 200)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,2,None)   
+        tdSql.checkData(0,3,None)   
+        tdSql.checkData(0,4,None)   
+        tdSql.checkData(0,5,None)   
+        tdSql.checkData(0,6,None)   
+        tdSql.checkData(0,7,None)
+        tdSql.checkData(0,8,None)   
+        tdSql.checkData(0,9,None)   
+        tdSql.checkData(0,10,None) 
+
+        tdSql.execute('''insert into table_2 values( %d , NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL);''' %(self.ts - 500))
+        sql = '''select * from table_2 where ts = %d ;''' %(self.ts - 500)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,2,None)   
+        tdSql.checkData(0,3,None)   
+        tdSql.checkData(0,4,None)   
+        tdSql.checkData(0,5,None)   
+        tdSql.checkData(0,6,None)   
+        tdSql.checkData(0,7,None)
+        tdSql.checkData(0,8,None)   
+        tdSql.checkData(0,9,None)   
+        tdSql.checkData(0,10,None) 
+        sql = '''select * from stable_1 where loc = 'table_2' and ts = %d ;''' %(self.ts - 500)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,2,None)   
+        tdSql.checkData(0,3,None)   
+        tdSql.checkData(0,4,None)   
+        tdSql.checkData(0,5,None)   
+        tdSql.checkData(0,6,None)   
+        tdSql.checkData(0,7,None)
+        tdSql.checkData(0,8,None)   
+        tdSql.checkData(0,9,None)   
+        tdSql.checkData(0,10,None) 
+
+        tdSql.execute('''insert into table_2 values( %d , NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL);''' %(self.ts + 500))
+        sql = '''select * from table_2 where ts = %d ;''' %(self.ts + 500)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,2,None)   
+        tdSql.checkData(0,3,None)   
+        tdSql.checkData(0,4,None)   
+        tdSql.checkData(0,5,None)   
+        tdSql.checkData(0,6,None)   
+        tdSql.checkData(0,7,None)
+        tdSql.checkData(0,8,None)   
+        tdSql.checkData(0,9,None)   
+        tdSql.checkData(0,10,None) 
+        sql = '''select * from stable_1 where loc = 'table_2' and ts = %d ;''' %(self.ts + 500)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,2,None)   
+        tdSql.checkData(0,3,None)   
+        tdSql.checkData(0,4,None)   
+        tdSql.checkData(0,5,None)   
+        tdSql.checkData(0,6,None)   
+        tdSql.checkData(0,7,None)
+        tdSql.checkData(0,8,None)   
+        tdSql.checkData(0,9,None)   
+        tdSql.checkData(0,10,None) 
+
+
+        tdLog.info("========== 4096 regular_table ==========") 
+        sql = "create table regular_table_4096_2 (ts timestamp, "
+        for i in range(500):
+            sql += "int_%d int, " % (i + 1)
+        for i in range(500,1000):
+            sql += "smallint_%d smallint, " % (i + 1)
+        for i in range(1000,1500):
+            sql += "tinyint_%d tinyint, " % (i + 1)
+        for i in range(1500,2000):
+            sql += "double_%d double, " % (i + 1)
+        for i in range(2000,2500):
+            sql += "float_%d float, " % (i + 1)
+        for i in range(2500,3000):
+            sql += "bool_%d bool, " % (i + 1)
+        for i in range(3000,3500):
+            sql += "bigint_%d bigint, " % (i + 1)
+        for i in range(3500,3800):
+            sql += "nchar_%d nchar(4), " % (i + 1)
+        for i in range(3800,4090):
+            sql += "binary_%d binary(10), " % (i + 1)
+        for i in range(4090,4094):
+            sql += "timestamp_%d timestamp, " % (i + 1)
+        sql += "col4095 binary(22))"  
+        tdLog.info(len(sql))      
+        tdSql.execute(sql)
+
+        for i in range(self.num4096):
+            sql = "insert into regular_table_4096_2 values(%d, "
+            for j in range(4090): 
+                str = "'%s', " % 'NULL'             
+                sql += str
+            for j in range(4090,4094):
+                str = "%s, " % (self.ts + j)                
+                sql += str
+            sql += "'%s')" % (self.ts + i)
+            tdSql.execute(sql % (self.ts + i))
+        tdSql.query('''select * from regular_table_4096_2 where ts = %d ;''' %(self.ts))
+        tdSql.checkCols(4096)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,501,None)   
+        tdSql.checkData(0,1001,None)   
+        tdSql.checkData(0,1501,None)   
+        tdSql.checkData(0,2001,None)   
+        tdSql.checkData(0,2501,None)   
+        tdSql.checkData(0,3001,None)
+        tdSql.checkData(0,3501,'NULL')   
+        tdSql.checkData(0,3801,'NULL')   
+        tdSql.checkData(0,4091,'2020-09-13 20:26:44.090') 
+        tdSql.checkData(0,4095,'1600000000000') 
+
+        sql = '''insert into regular_table_4096_2 (ts , int_1,smallint_501 , tinyint_1001 , double_1501 , float_2001 , bool_2501 ,
+                bigint_3001 , nchar_3501 , binary_3801 , timestamp_4091 , col4095 )
+                values('2020-09-10 20:26:40.000' , 1 , 501 , 101 , 1501 , 2001 , 1 , 3001 , '3501' , '3801' ,'2020-09-10 20:26:44.090','1500000000000');'''
+        tdSql.execute(sql)
+        tdSql.query("select * from regular_table_4096_2 where ts ='2020-09-10 20:26:40.000';")
+        tdSql.checkCols(4096)
+        tdSql.checkData(0,1,1)   
+        tdSql.checkData(0,501,501)   
+        tdSql.checkData(0,1001,101)   
+        tdSql.checkData(0,1501,1501)   
+        tdSql.checkData(0,2001,2001)   
+        tdSql.checkData(0,2501,'True')   
+        tdSql.checkData(0,3001,3001)
+        tdSql.checkData(0,3501,'3501')   
+        tdSql.checkData(0,3801,'3801')   
+        tdSql.checkData(0,4091,'2020-09-10 20:26:44.090') 
+        tdSql.checkData(0,4095,'1500000000000') 
+
+        tdLog.info("========== 4096 stable ==========") 
+        sql = "create stable stable_4096_2 (ts timestamp, "
+        for i in range(500):
+            sql += "int_%d int, " % (i + 1)
+        for i in range(500,1000):
+            sql += "smallint_%d smallint, " % (i + 1)
+        for i in range(1000,1500):
+            sql += "tinyint_%d tinyint, " % (i + 1)
+        for i in range(1500,2000):
+            sql += "double_%d double, " % (i + 1)
+        for i in range(2000,2500):
+            sql += "float_%d float, " % (i + 1)
+        for i in range(2500,3000):
+            sql += "bool_%d bool, " % (i + 1)
+        for i in range(3000,3500):
+            sql += "bigint_%d bigint, " % (i + 1)
+        for i in range(3500,3800):
+            sql += "nchar_%d nchar(4), " % (i + 1)
+        for i in range(3800,4090):
+            sql += "binary_%d binary(10), " % (i + 1)
+        for i in range(4090,4092):
+            sql += "timestamp_%d timestamp, " % (i + 1)
+        sql += " col4093 binary(22)) "  
+        sql += " tags (loc nchar(20),tag_1 int) "
+        tdLog.info(len(sql))      
+        tdSql.execute(sql)
+
+        sql = " create table table_4096_2 using stable_4096_2 tags ('table_4096_2',1); "
+        tdSql.execute(sql)
+
+        for i in range(self.num4096):
+            sql = "insert into table_4096_2 values(%d, "
+            for j in range(4090): 
+                str = "'%s', " % 'NULL'             
+                sql += str
+            for j in range(4090,4092):
+                str = "%s, " % (self.ts + j)                
+                sql += str
+            sql += "'%s')" % (self.ts + i)
+            tdSql.execute(sql % (self.ts + i))
+        tdSql.query('''select * from table_4096_2 where ts = %d ;''' %(self.ts))
+        tdSql.checkCols(4094)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,501,None)   
+        tdSql.checkData(0,1001,None)   
+        tdSql.checkData(0,1501,None)   
+        tdSql.checkData(0,2001,None)   
+        tdSql.checkData(0,2501,None)   
+        tdSql.checkData(0,3001,None)
+        tdSql.checkData(0,3501,'NULL')   
+        tdSql.checkData(0,3801,'NULL')   
+        tdSql.checkData(0,4091,'2020-09-13 20:26:44.090') 
+        tdSql.checkData(0,4093,'1600000000000')
+        tdSql.query('''select * from stable_4096_2 where ts = %d ;''' %(self.ts))
+        tdSql.checkCols(4096)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,501,None)   
+        tdSql.checkData(0,1001,None)   
+        tdSql.checkData(0,1501,None)   
+        tdSql.checkData(0,2001,None)   
+        tdSql.checkData(0,2501,None)   
+        tdSql.checkData(0,3001,None)
+        tdSql.checkData(0,3501,'NULL')   
+        tdSql.checkData(0,3801,'NULL')   
+        tdSql.checkData(0,4091,'2020-09-13 20:26:44.090') 
+        tdSql.checkData(0,4093,'1600000000000')
+
+        sql = '''insert into table_4096_2 (ts , int_1,smallint_501 , tinyint_1001 , double_1501 , float_2001 , bool_2501 ,
+                bigint_3001 , nchar_3501 , binary_3801 , timestamp_4091 , col4093 )
+                values('2020-09-10 20:26:40.000' , 1 , 501 , 101 , 1501 , 2001 , 1 , 3001 , '3501' , '3801' ,'2020-09-10 20:26:44.090','1500000000000');'''
+        tdSql.execute(sql)
+        tdSql.query("select * from table_4096_2 where ts ='2020-09-10 20:26:40.000';")
+        tdSql.checkCols(4094)
+        tdSql.checkData(0,1,1)   
+        tdSql.checkData(0,501,501)   
+        tdSql.checkData(0,1001,101)   
+        tdSql.checkData(0,1501,1501)   
+        tdSql.checkData(0,2001,2001)   
+        tdSql.checkData(0,2501,'True')   
+        tdSql.checkData(0,3001,3001)
+        tdSql.checkData(0,3501,'3501')   
+        tdSql.checkData(0,3801,'3801')   
+        tdSql.checkData(0,4091,'2020-09-10 20:26:44.090') 
+        tdSql.checkData(0,4093,'1500000000000') 
+        tdSql.query("select * from stable_4096_2 where ts ='2020-09-10 20:26:40.000';")
+        tdSql.checkCols(4096)
+        tdSql.checkData(0,1,1)   
+        tdSql.checkData(0,501,501)   
+        tdSql.checkData(0,1001,101)   
+        tdSql.checkData(0,1501,1501)   
+        tdSql.checkData(0,2001,2001)   
+        tdSql.checkData(0,2501,'True')   
+        tdSql.checkData(0,3001,3001)
+        tdSql.checkData(0,3501,'3501')   
+        tdSql.checkData(0,3801,'3801')   
+        tdSql.checkData(0,4091,'2020-09-10 20:26:44.090') 
+        tdSql.checkData(0,4093,'1500000000000') 
+
+
+        # taosdemo force data dropping disk
+        buildPath = self.getBuildPath()
+        if (buildPath == ""):
+            tdLog.exit("taosd not found!")
+        else:
+            tdLog.info("taosd found in %s" % buildPath)
+        binPath = buildPath+ "/build/bin/"
+        os.system("%staosdemo -N -d taosdemo -t 100 -n 100 -l 1000 -y" % binPath)
+
+        tdLog.info("========== stable ==========") 
+        tdSql.execute('''insert into table_2 values( %d , NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL);''' %(self.ts - 200))
+        sql = '''select * from table_2 where ts = %d ;''' %(self.ts - 200)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,0)   
+        tdSql.checkData(0,2,0)   
+        tdSql.checkData(0,3,0)   
+        tdSql.checkData(0,4,0)   
+        tdSql.checkData(0,5,'False')   
+        tdSql.checkData(0,6,'binary-0')   
+        tdSql.checkData(0,7,'nchar-0')
+        tdSql.checkData(0,8,0)   
+        tdSql.checkData(0,9,0)   
+        tdSql.checkData(0,10,'2020-09-13 20:26:40.000') 
+        sql = '''select * from stable_1 where loc = 'table_2' and ts = %d ;''' %(self.ts - 200)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,0)   
+        tdSql.checkData(0,2,0)   
+        tdSql.checkData(0,3,0)   
+        tdSql.checkData(0,4,0)   
+        tdSql.checkData(0,5,'False')   
+        tdSql.checkData(0,6,'binary-0')   
+        tdSql.checkData(0,7,'nchar-0')
+        tdSql.checkData(0,8,0)   
+        tdSql.checkData(0,9,0)   
+        tdSql.checkData(0,10,'2020-09-13 20:26:40.000') 
+
+        tdSql.execute('''insert into table_2 values( %d , 0, 0, 0, 0, 0, 'binary+0', 'nchar+0', 0.000000, 0.000000, 1600000000000);''' %(self.ts + 200))
+        sql = '''select * from table_2 where ts = %d ;''' %(self.ts + 200)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,0)   
+        tdSql.checkData(0,2,0)   
+        tdSql.checkData(0,3,0)   
+        tdSql.checkData(0,4,0)   
+        tdSql.checkData(0,5,'False')   
+        tdSql.checkData(0,6,'binary+0')   
+        tdSql.checkData(0,7,'nchar+0')
+        tdSql.checkData(0,8,0)   
+        tdSql.checkData(0,9,0)   
+        tdSql.checkData(0,10,'2020-09-13 20:26:40.000') 
+        sql = '''select * from stable_1 where loc = 'table_2' and ts = %d ;''' %(self.ts + 200)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,0)   
+        tdSql.checkData(0,2,0)   
+        tdSql.checkData(0,3,0)   
+        tdSql.checkData(0,4,0)   
+        tdSql.checkData(0,5,'False')   
+        tdSql.checkData(0,6,'binary+0')   
+        tdSql.checkData(0,7,'nchar+0')
+        tdSql.checkData(0,8,0)   
+        tdSql.checkData(0,9,0)   
+        tdSql.checkData(0,10,'2020-09-13 20:26:40.000') 
+
+        tdSql.execute('''insert into table_2 values( %d , NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL);''' %(self.ts + 200))
+        sql = '''select * from table_1 where ts = %d ;''' %(self.ts + 200)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,0)   
+        tdSql.checkData(0,2,0)   
+        tdSql.checkData(0,3,0)   
+        tdSql.checkData(0,4,0)   
+        tdSql.checkData(0,5,'False')   
+        tdSql.checkData(0,6,'binary+0')   
+        tdSql.checkData(0,7,'nchar+0')
+        tdSql.checkData(0,8,0)   
+        tdSql.checkData(0,9,0)   
+        tdSql.checkData(0,10,'2020-09-13 20:26:40.000') 
+        sql = '''select * from stable_1 where loc = 'table_2' and ts = %d ;''' %(self.ts + 200)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,0)   
+        tdSql.checkData(0,2,0)   
+        tdSql.checkData(0,3,0)   
+        tdSql.checkData(0,4,0)   
+        tdSql.checkData(0,5,'False')   
+        tdSql.checkData(0,6,'binary+0')   
+        tdSql.checkData(0,7,'nchar+0')
+        tdSql.checkData(0,8,0)   
+        tdSql.checkData(0,9,0)   
+        tdSql.checkData(0,10,'2020-09-13 20:26:40.000') 
+
+
+        tdSql.error('''insert into table_2 values( %d , -2147483648, -9223372036854775807, -32767, -127, 0, 'binary-0', 'nchar-0', 0.000000, 0.000000, 1600000000000);''' %(self.ts - 500))
+        tdSql.error('''insert into table_2 values( %d , -2147483647, -9223372036854775808, -32767, -127, 0, 'binary-0', 'nchar-0', 0.000000, 0.000000, 1600000000000);''' %(self.ts - 500))
+        tdSql.error('''insert into table_2 values( %d , -2147483647, -9223372036854775807, -32768, -127, 0, 'binary-0', 'nchar-0', 0.000000, 0.000000, 1600000000000);''' %(self.ts - 500))
+        tdSql.error('''insert into table_2 values( %d , -2147483647, -9223372036854775807, -32767, -128, 0, 'binary-0', 'nchar-0', 0.000000, 0.000000, 1600000000000);''' %(self.ts - 500))
+        tdSql.error('''insert into table_2 values( %d , -2147483647, -9223372036854775807, -32767, -127, 0, 'binary-0123', 'nchar-0', 0.000000, 0.000000, 1600000000000);''' %(self.ts - 500))
+        tdSql.error('''insert into table_2 values( %d , -2147483647, -9223372036854775807, -32767, -127, 0, 'binary-0', 'nchar-01234', 0.000000, 0.000000, 1600000000000);''' %(self.ts - 500))
+        
+        tdSql.execute('''insert into table_2 values( %d , -2147483647, -9223372036854775807, -32767, -127, 0, 'binary-012', 'nchar-0123', 0.000000, 0.000000, 1600000000000);''' %(self.ts - 500))
+        sql = '''select * from table_2 where ts = %d ;''' %(self.ts - 500)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,-2147483647)   
+        tdSql.checkData(0,2,-9223372036854775807)   
+        tdSql.checkData(0,3,-32767)   
+        tdSql.checkData(0,4,-127)   
+        tdSql.checkData(0,5,'False')   
+        tdSql.checkData(0,6,'binary-012')   
+        tdSql.checkData(0,7,'nchar-0123')
+        tdSql.checkData(0,8,0)   
+        tdSql.checkData(0,9,0)   
+        tdSql.checkData(0,10,'2020-09-13 20:26:44.090') 
+        sql = '''select * from stable_1 where loc = 'table_2' and ts = %d ;''' %(self.ts - 500)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,-2147483647)   
+        tdSql.checkData(0,2,-9223372036854775807)   
+        tdSql.checkData(0,3,-32767)   
+        tdSql.checkData(0,4,-127)   
+        tdSql.checkData(0,5,'False')   
+        tdSql.checkData(0,6,'binary-012')   
+        tdSql.checkData(0,7,'nchar-0123')
+        tdSql.checkData(0,8,0)   
+        tdSql.checkData(0,9,0)   
+        tdSql.checkData(0,10,'2020-09-13 20:26:44.090')  
+
+        tdSql.error('''insert into table_2 values( %d , 2147483648, 9223372036854775807, 32767, 127, 0, 'binary+0', 'nchar+0', 0.000000, 0.000000, 1600000000000);''' %(self.ts + 500))
+        tdSql.error('''insert into table_2 values( %d , 2147483647, 9223372036854775808, 32767, 127, 0, 'binary+0', 'nchar+0', 0.000000, 0.000000, 1600000000000);''' %(self.ts + 500))
+        tdSql.error('''insert into table_2 values( %d , 2147483647, 9223372036854775807, 32768, 127, 0, 'binary+0', 'nchar+0', 0.000000, 0.000000, 1600000000000);''' %(self.ts + 500))
+        tdSql.error('''insert into table_2 values( %d , 2147483647, 9223372036854775807, 32767, 128, 0, 'binary+0', 'nchar+0', 0.000000, 0.000000, 1600000000000);''' %(self.ts + 500))
+        tdSql.error('''insert into table_2 values( %d , 2147483647, 9223372036854775807, 32767, 127, 0, 'binary+0123', 'nchar+0', 0.000000, 0.000000, 1600000000000);''' %(self.ts + 500))
+        tdSql.error('''insert into table_2 values( %d , 2147483647, 9223372036854775807, 32767, 127, 0, 'binary+0', 'nchar+01234', 0.000000, 0.000000, 1600000000000);''' %(self.ts + 500))
+        
+        tdSql.execute('''insert into table_2 values( %d , 2147483647, 9223372036854775807, 32767, 127, 0, 'binary+012', 'nchar+0123', 0.000000, 0.000000, 1600000000000);''' %(self.ts + 500))
+        sql = '''select * from table_2 where ts = %d ;''' %(self.ts + 500)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,2147483647)   
+        tdSql.checkData(0,2,9223372036854775807)   
+        tdSql.checkData(0,3,32767)   
+        tdSql.checkData(0,4,127)   
+        tdSql.checkData(0,5,'False')   
+        tdSql.checkData(0,6,'binary+012')   
+        tdSql.checkData(0,7,'nchar+0123')
+        tdSql.checkData(0,8,0)   
+        tdSql.checkData(0,9,0)     
+        tdSql.checkData(0,10,'2020-09-13 20:26:44.090') 
+        sql = '''select * from stable_1 where loc = 'table_2' and ts = %d ;''' %(self.ts + 500)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,2147483647)   
+        tdSql.checkData(0,2,9223372036854775807)   
+        tdSql.checkData(0,3,32767)   
+        tdSql.checkData(0,4,127)   
+        tdSql.checkData(0,5,'False')   
+        tdSql.checkData(0,6,'binary+012')   
+        tdSql.checkData(0,7,'nchar+0123')
+        tdSql.checkData(0,8,0)   
+        tdSql.checkData(0,9,0)     
+        tdSql.checkData(0,10,'2020-09-13 20:26:44.090') 
+        tdSql.execute('''insert into table_2 values( %d , -2147483647, -9223372036854775807, -32767, -127, 0, 'binary-012', 'nchar-0123', 0.000000, 0.000000, 1600000000000);''' %(self.ts + 500))
+        sql = '''select * from table_1 where ts = %d ;''' %(self.ts + 500)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,-2147483647)   
+        tdSql.checkData(0,2,-9223372036854775807)   
+        tdSql.checkData(0,3,-32767)   
+        tdSql.checkData(0,4,-127)   
+        tdSql.checkData(0,5,'False')   
+        tdSql.checkData(0,6,'binary-012')   
+        tdSql.checkData(0,7,'nchar-0123')
+        tdSql.checkData(0,8,0)   
+        tdSql.checkData(0,9,0)   
+        tdSql.checkData(0,10,'2020-09-13 20:26:40.000') 
+        sql = '''select * from stable_1 where loc = 'table_2' and ts = %d ;''' %(self.ts + 500)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,-2147483647)   
+        tdSql.checkData(0,2,-9223372036854775807)   
+        tdSql.checkData(0,3,-32767)   
+        tdSql.checkData(0,4,-127)   
+        tdSql.checkData(0,5,'False')   
+        tdSql.checkData(0,6,'binary-012')   
+        tdSql.checkData(0,7,'nchar-0123')
+        tdSql.checkData(0,8,0)   
+        tdSql.checkData(0,9,0)   
+        tdSql.checkData(0,10,'2020-09-13 20:26:40.000') 
+
+
+        tdLog.info("========== 4096 regular_table ==========") 
+        sql = '''insert into regular_table_4096_2 (ts , int_1,smallint_501 , tinyint_1001 , double_1501 , float_2001 , bool_2501 ,
+                bigint_3001 , nchar_3501 , binary_3801 , timestamp_4091 , col4095 )
+                values('2020-09-13 20:26:40.000' , 1 , 501 , 101 , 1501 , 2001 , 1 , 3001 , '3501' , '3801' ,'2020-09-13 20:26:44.090','1600000000000');'''
+        tdSql.execute(sql)
+        tdSql.query("select * from regular_table_4096_2 where ts ='2020-09-13 20:26:40.000';")
+        tdSql.checkCols(4096)
+        tdSql.checkData(0,1,1)   
+        tdSql.checkData(0,501,501)   
+        tdSql.checkData(0,1001,101)   
+        tdSql.checkData(0,1501,1501)   
+        tdSql.checkData(0,2001,2001)   
+        tdSql.checkData(0,2501,'True')   
+        tdSql.checkData(0,3001,3001)
+        tdSql.checkData(0,3501,'3501')   
+        tdSql.checkData(0,3801,'3801')  
+        tdSql.checkData(0,4091,'2020-09-13 20:26:44.090') 
+        tdSql.checkData(0,4095,'1600000000000') 
+
+        sql = '''insert into regular_table_4096_2 (ts , int_1,smallint_501 , tinyint_1001 , double_1501 , float_2001 , bool_2501 ,
+                bigint_3001 , nchar_3501 , binary_3801 , timestamp_4091 , col4095 )
+                values('2020-09-10 20:26:40.000' , NULL , NULL , NULL , NULL , NULL , NULL , NULL , NULL , NULL , NULL , NULL);'''
+        tdSql.execute(sql)
+        tdSql.query("select * from regular_table_4096_2 where ts ='2020-09-10 20:26:40.000';")
+        tdSql.checkCols(4096)
+        tdSql.checkData(0,1,1)   
+        tdSql.checkData(0,501,501)   
+        tdSql.checkData(0,1001,101)   
+        tdSql.checkData(0,1501,1501)   
+        tdSql.checkData(0,2001,2001)   
+        tdSql.checkData(0,2501,'True')   
+        tdSql.checkData(0,3001,3001)
+        tdSql.checkData(0,3501,'3501')   
+        tdSql.checkData(0,3801,'3801')   
+        tdSql.checkData(0,4091,'2020-09-10 20:26:44.090') 
+        tdSql.checkData(0,4095,'1500000000000') 
+
+        sql = '''insert into regular_table_4096_2 (ts , int_1,smallint_501 , tinyint_1001 , double_1501 , float_2001 , bool_2501 ,
+                bigint_3001 , nchar_3501 , binary_3801 , timestamp_4091 , col4095 )
+                values('2020-09-13 20:26:40.000' , 2 , 502 , 102 , 1502 , 2002 , 0 , 3002 , '3502' , '3802' ,'2020-09-13 20:26:44.092','1600000002000');'''
+        tdSql.execute(sql)
+        tdSql.query("select * from regular_table_4096_2 where ts ='2020-09-13 20:26:40.000';")
+        tdSql.checkCols(4096)
+        tdSql.checkData(0,1,2)   
+        tdSql.checkData(0,501,502)   
+        tdSql.checkData(0,1001,102)   
+        tdSql.checkData(0,1501,1502)   
+        tdSql.checkData(0,2001,2002)   
+        tdSql.checkData(0,2501,'False')   
+        tdSql.checkData(0,3001,3002)
+        tdSql.checkData(0,3501,'3502')   
+        tdSql.checkData(0,3801,'3802')   
+        tdSql.checkData(0,4091,'2020-09-13 20:26:44.092') 
+        tdSql.checkData(0,4095,'1600000002000') 
+
+
+        tdLog.info("========== 4096 stable ==========") 
+        sql = '''insert into table_4096_2 (ts , int_1,smallint_501 , tinyint_1001 , double_1501 , float_2001 , bool_2501 ,
+                bigint_3001 , nchar_3501 , binary_3801 , timestamp_4091 , col4093 )
+                values('2020-09-13 20:26:40.000' , 1 , 501 , 101 , 1501 , 2001 , 1 , 3001 , '3501' , '3801' ,'2020-09-13 20:26:44.090','1600000000000');'''
+        tdSql.execute(sql)
+        tdSql.query("select * from table_4096_2 where ts ='2020-09-13 20:26:40.000';")
+        tdSql.checkCols(4094)
+        tdSql.checkData(0,1,1)   
+        tdSql.checkData(0,501,501)   
+        tdSql.checkData(0,1001,101)   
+        tdSql.checkData(0,1501,1501)   
+        tdSql.checkData(0,2001,2001)   
+        tdSql.checkData(0,2501,'True')   
+        tdSql.checkData(0,3001,3001)
+        tdSql.checkData(0,3501,'3501')   
+        tdSql.checkData(0,3801,'3801')     
+        tdSql.checkData(0,4091,'2020-09-13 20:26:44.090') 
+        tdSql.checkData(0,4093,'1600000000000') 
+        tdSql.query("select * from stable_4096_2 where ts ='2020-09-13 20:26:40.000';")
+        tdSql.checkCols(4096)
+        tdSql.checkData(0,1,1)   
+        tdSql.checkData(0,501,501)   
+        tdSql.checkData(0,1001,101)   
+        tdSql.checkData(0,1501,1501)   
+        tdSql.checkData(0,2001,2001)   
+        tdSql.checkData(0,2501,'True')   
+        tdSql.checkData(0,3001,3001)
+        tdSql.checkData(0,3501,'3501')   
+        tdSql.checkData(0,3801,'3801')    
+        tdSql.checkData(0,4091,'2020-09-13 20:26:44.090') 
+        tdSql.checkData(0,4093,'1600000000000') 
+
+        sql = '''insert into table_4096_2 (ts , int_1,smallint_501 , tinyint_1001 , double_1501 , float_2001 , bool_2501 ,
+                bigint_3001 , nchar_3501 , binary_3801 , timestamp_4091 , col4093 )
+                values('2020-09-10 20:26:40.000' , NULL , NULL , NULL , NULL , NULL , NULL , NULL , NULL , NULL , NULL , NULL);'''
+        tdSql.execute(sql)
+        tdSql.query("select * from table_4096_2 where ts ='2020-09-10 20:26:40.000';")
+        tdSql.checkCols(4094)
+        tdSql.checkData(0,1,1)   
+        tdSql.checkData(0,501,501)   
+        tdSql.checkData(0,1001,101)   
+        tdSql.checkData(0,1501,1501)   
+        tdSql.checkData(0,2001,2001)   
+        tdSql.checkData(0,2501,'True')   
+        tdSql.checkData(0,3001,3001)
+        tdSql.checkData(0,3501,'3501')   
+        tdSql.checkData(0,3801,'3801')   
+        tdSql.checkData(0,4091,'2020-09-10 20:26:44.090') 
+        tdSql.checkData(0,4093,'1500000000000') 
+        tdSql.query("select * from stable_4096_2 where ts ='2020-09-10 20:26:40.000';")
+        tdSql.checkCols(4096)
+        tdSql.checkData(0,1,1)   
+        tdSql.checkData(0,501,501)   
+        tdSql.checkData(0,1001,101)   
+        tdSql.checkData(0,1501,1501)   
+        tdSql.checkData(0,2001,2001)   
+        tdSql.checkData(0,2501,'True')   
+        tdSql.checkData(0,3001,3001)
+        tdSql.checkData(0,3501,'3501')   
+        tdSql.checkData(0,3801,'3801')   
+        tdSql.checkData(0,4091,'2020-09-10 20:26:44.090') 
+        tdSql.checkData(0,4093,'1500000000000') 
+
+        sql = '''insert into table_4096_2 (ts , int_1,smallint_501 , tinyint_1001 , double_1501 , float_2001 , bool_2501 ,
+                bigint_3001 , nchar_3501 , binary_3801 , timestamp_4091 , col4093 )
+                values('2020-09-13 20:26:40.000' , 2 , 502 , 102 , 1502 , 2002 , 0 , 3002 , '3502' , '3802' ,'2020-09-13 20:26:44.092','1600000002000');'''
+        tdSql.execute(sql)
+        tdSql.query("select * from table_4096_2 where ts ='2020-09-13 20:26:40.000';")
+        tdSql.checkCols(4094)
+        tdSql.checkData(0,1,2)   
+        tdSql.checkData(0,501,502)   
+        tdSql.checkData(0,1001,102)   
+        tdSql.checkData(0,1501,1502)   
+        tdSql.checkData(0,2001,2002)   
+        tdSql.checkData(0,2501,'False')   
+        tdSql.checkData(0,3001,3002)
+        tdSql.checkData(0,3501,'3502')   
+        tdSql.checkData(0,3801,'3802')   
+        tdSql.checkData(0,4091,'2020-09-13 20:26:44.092') 
+        tdSql.checkData(0,4093,'1600000002000') 
+        tdSql.query("select * from stable_4096_2 where ts ='2020-09-13 20:26:40.000';")
+        tdSql.checkCols(4096)
+        tdSql.checkData(0,1,2)   
+        tdSql.checkData(0,501,502)   
+        tdSql.checkData(0,1001,102)   
+        tdSql.checkData(0,1501,1502)   
+        tdSql.checkData(0,2001,2002)   
+        tdSql.checkData(0,2501,'False')   
+        tdSql.checkData(0,3001,3002)
+        tdSql.checkData(0,3501,'3502')   
+        tdSql.checkData(0,3801,'3802')   
+        tdSql.checkData(0,4091,'2020-09-13 20:26:44.092') 
+        tdSql.checkData(0,4093,'1600000002000') 
+        
+
+        tdLog.info("========== test1.3 : insert data , tdDnodes restart force data dropping disk , check data==========")
+        tdLog.info("========== regular_table ==========") 
+        tdSql.execute('''insert into regular_table_3 values( %d , 0, 0, 0, 0, 0, 'binary-0', 'nchar-0', 0.000000, 0.000000, 1600000000000);''' %(self.ts - 200))
+        sql = '''select * from regular_table_3 where ts = %d ;''' %(self.ts - 200)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,0)   
+        tdSql.checkData(0,2,0)   
+        tdSql.checkData(0,3,0)   
+        tdSql.checkData(0,4,0)   
+        tdSql.checkData(0,5,'False')   
+        tdSql.checkData(0,6,'binary-0')   
+        tdSql.checkData(0,7,'nchar-0')
+        tdSql.checkData(0,8,0)   
+        tdSql.checkData(0,9,0)   
+        tdSql.checkData(0,10,'2020-09-13 20:26:40.000') 
+
+        tdSql.execute('''insert into regular_table_3 values( %d , NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL);''' %(self.ts + 200))
+        sql = '''select * from regular_table_3 where ts = %d ;''' %(self.ts + 200)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,2,None)   
+        tdSql.checkData(0,3,None)   
+        tdSql.checkData(0,4,None)   
+        tdSql.checkData(0,5,None)   
+        tdSql.checkData(0,6,None)   
+        tdSql.checkData(0,7,None)
+        tdSql.checkData(0,8,None)   
+        tdSql.checkData(0,9,None)   
+        tdSql.checkData(0,10,None) 
+
+        tdSql.execute('''insert into regular_table_3 values( %d , NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL);''' %(self.ts - 500))
+        sql = '''select * from regular_table_3 where ts = %d ;''' %(self.ts - 500)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,2,None)   
+        tdSql.checkData(0,3,None)   
+        tdSql.checkData(0,4,None)   
+        tdSql.checkData(0,5,None)   
+        tdSql.checkData(0,6,None)   
+        tdSql.checkData(0,7,None)
+        tdSql.checkData(0,8,None)   
+        tdSql.checkData(0,9,None)   
+        tdSql.checkData(0,10,None) 
+
+        tdSql.execute('''insert into regular_table_3 values( %d , NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL);''' %(self.ts + 500))
+        sql = '''select * from regular_table_3 where ts = %d ;''' %(self.ts + 500)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,2,None)   
+        tdSql.checkData(0,3,None)   
+        tdSql.checkData(0,4,None)   
+        tdSql.checkData(0,5,None)   
+        tdSql.checkData(0,6,None)   
+        tdSql.checkData(0,7,None)
+        tdSql.checkData(0,8,None)   
+        tdSql.checkData(0,9,None)   
+        tdSql.checkData(0,10,None) 
+
+        tdLog.info("========== stable ==========") 
+        tdSql.execute('''insert into table_3 values( %d , 0, 0, 0, 0, 0, 'binary-0', 'nchar-0', 0.000000, 0.000000, 1600000000000);''' %(self.ts - 200))
+        sql = '''select * from table_3 where ts = %d ;''' %(self.ts - 200)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,0)   
+        tdSql.checkData(0,2,0)   
+        tdSql.checkData(0,3,0)   
+        tdSql.checkData(0,4,0)   
+        tdSql.checkData(0,5,'False')   
+        tdSql.checkData(0,6,'binary-0')   
+        tdSql.checkData(0,7,'nchar-0')
+        tdSql.checkData(0,8,0)   
+        tdSql.checkData(0,9,0)   
+        tdSql.checkData(0,10,'2020-09-13 20:26:40.000') 
+        sql = '''select * from stable_1 where loc = 'table_3' and ts = %d ;''' %(self.ts - 200)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,0)   
+        tdSql.checkData(0,2,0)   
+        tdSql.checkData(0,3,0)   
+        tdSql.checkData(0,4,0)   
+        tdSql.checkData(0,5,'False')   
+        tdSql.checkData(0,6,'binary-0')   
+        tdSql.checkData(0,7,'nchar-0')
+        tdSql.checkData(0,8,0)   
+        tdSql.checkData(0,9,0)   
+        tdSql.checkData(0,10,'2020-09-13 20:26:40.000') 
+
+        tdSql.execute('''insert into table_3 values( %d , NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL);''' %(self.ts + 200))
+        sql = '''select * from table_3 where ts = %d ;''' %(self.ts + 200)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,2,None)   
+        tdSql.checkData(0,3,None)   
+        tdSql.checkData(0,4,None)   
+        tdSql.checkData(0,5,None)   
+        tdSql.checkData(0,6,None)   
+        tdSql.checkData(0,7,None)
+        tdSql.checkData(0,8,None)   
+        tdSql.checkData(0,9,None)   
+        tdSql.checkData(0,10,None) 
+        sql = '''select * from stable_1 where loc = 'table_3' and ts = %d ;''' %(self.ts + 200)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,2,None)   
+        tdSql.checkData(0,3,None)   
+        tdSql.checkData(0,4,None)   
+        tdSql.checkData(0,5,None)   
+        tdSql.checkData(0,6,None)   
+        tdSql.checkData(0,7,None)
+        tdSql.checkData(0,8,None)   
+        tdSql.checkData(0,9,None)   
+        tdSql.checkData(0,10,None) 
+
+        tdSql.execute('''insert into table_3 values( %d , NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL);''' %(self.ts - 500))
+        sql = '''select * from table_3 where ts = %d ;''' %(self.ts - 500)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,2,None)   
+        tdSql.checkData(0,3,None)   
+        tdSql.checkData(0,4,None)   
+        tdSql.checkData(0,5,None)   
+        tdSql.checkData(0,6,None)   
+        tdSql.checkData(0,7,None)
+        tdSql.checkData(0,8,None)   
+        tdSql.checkData(0,9,None)   
+        tdSql.checkData(0,10,None) 
+        sql = '''select * from stable_1 where loc = 'table_3' and ts = %d ;''' %(self.ts - 500)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,2,None)   
+        tdSql.checkData(0,3,None)   
+        tdSql.checkData(0,4,None)   
+        tdSql.checkData(0,5,None)   
+        tdSql.checkData(0,6,None)   
+        tdSql.checkData(0,7,None)
+        tdSql.checkData(0,8,None)   
+        tdSql.checkData(0,9,None)   
+        tdSql.checkData(0,10,None) 
+
+        tdSql.execute('''insert into table_3 values( %d , NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL);''' %(self.ts + 500))
+        sql = '''select * from table_3 where ts = %d ;''' %(self.ts + 500)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,2,None)   
+        tdSql.checkData(0,3,None)   
+        tdSql.checkData(0,4,None)   
+        tdSql.checkData(0,5,None)   
+        tdSql.checkData(0,6,None)   
+        tdSql.checkData(0,7,None)
+        tdSql.checkData(0,8,None)   
+        tdSql.checkData(0,9,None)   
+        tdSql.checkData(0,10,None) 
+        sql = '''select * from stable_1 where loc = 'table_3' and ts = %d ;''' %(self.ts + 500)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,2,None)   
+        tdSql.checkData(0,3,None)   
+        tdSql.checkData(0,4,None)   
+        tdSql.checkData(0,5,None)   
+        tdSql.checkData(0,6,None)   
+        tdSql.checkData(0,7,None)
+        tdSql.checkData(0,8,None)   
+        tdSql.checkData(0,9,None)   
+        tdSql.checkData(0,10,None) 
+
+
+        tdLog.info("========== 4096 regular_table ==========") 
+        sql = "create table regular_table_4096_3 (ts timestamp, "
+        for i in range(500):
+            sql += "int_%d int, " % (i + 1)
+        for i in range(500,1000):
+            sql += "smallint_%d smallint, " % (i + 1)
+        for i in range(1000,1500):
+            sql += "tinyint_%d tinyint, " % (i + 1)
+        for i in range(1500,2000):
+            sql += "double_%d double, " % (i + 1)
+        for i in range(2000,2500):
+            sql += "float_%d float, " % (i + 1)
+        for i in range(2500,3000):
+            sql += "bool_%d bool, " % (i + 1)
+        for i in range(3000,3500):
+            sql += "bigint_%d bigint, " % (i + 1)
+        for i in range(3500,3800):
+            sql += "nchar_%d nchar(4), " % (i + 1)
+        for i in range(3800,4090):
+            sql += "binary_%d binary(10), " % (i + 1)
+        for i in range(4090,4094):
+            sql += "timestamp_%d timestamp, " % (i + 1)
+        sql += "col4095 binary(22))"  
+        tdLog.info(len(sql))      
+        tdSql.execute(sql)
+
+        for i in range(self.num4096):
+            sql = "insert into regular_table_4096_3 values(%d, "
+            for j in range(4090): 
+                str = "'%s', " % 'NULL'             
+                sql += str
+            for j in range(4090,4094):
+                str = "%s, " % (self.ts + j)                
+                sql += str
+            sql += "'%s')" % (self.ts + i)
+            tdSql.execute(sql % (self.ts + i))
+        tdSql.query('''select * from regular_table_4096_3 where ts = %d ;''' %(self.ts))
+        tdSql.checkCols(4096)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,501,None)   
+        tdSql.checkData(0,1001,None)   
+        tdSql.checkData(0,1501,None)   
+        tdSql.checkData(0,2001,None)   
+        tdSql.checkData(0,2501,None)   
+        tdSql.checkData(0,3001,None)
+        tdSql.checkData(0,3501,'NULL')   
+        tdSql.checkData(0,3801,'NULL')   
+        tdSql.checkData(0,4091,'2020-09-13 20:26:44.090') 
+        tdSql.checkData(0,4095,'1600000000000') 
+
+        sql = '''insert into regular_table_4096_3 (ts , int_1,smallint_501 , tinyint_1001 , double_1501 , float_2001 , bool_2501 ,
+                bigint_3001 , nchar_3501 , binary_3801 , timestamp_4091 , col4095 )
+                values('2020-09-10 20:26:40.000' , 1 , 501 , 101 , 1501 , 2001 , 1 , 3001 , '3501' , '3801' ,'2020-09-10 20:26:44.090','1500000000000');'''
+        tdSql.execute(sql)
+        tdSql.query("select * from regular_table_4096_3 where ts ='2020-09-10 20:26:40.000';")
+        tdSql.checkCols(4096)
+        tdSql.checkData(0,1,1)   
+        tdSql.checkData(0,501,501)   
+        tdSql.checkData(0,1001,101)   
+        tdSql.checkData(0,1501,1501)   
+        tdSql.checkData(0,2001,2001)   
+        tdSql.checkData(0,2501,'True')   
+        tdSql.checkData(0,3001,3001)
+        tdSql.checkData(0,3501,'3501')   
+        tdSql.checkData(0,3801,'3801')   
+        tdSql.checkData(0,4091,'2020-09-10 20:26:44.090') 
+        tdSql.checkData(0,4095,'1500000000000') 
+
+        tdLog.info("========== 4096 stable ==========") 
+        sql = "create stable stable_4096_3 (ts timestamp, "
+        for i in range(500):
+            sql += "int_%d int, " % (i + 1)
+        for i in range(500,1000):
+            sql += "smallint_%d smallint, " % (i + 1)
+        for i in range(1000,1500):
+            sql += "tinyint_%d tinyint, " % (i + 1)
+        for i in range(1500,2000):
+            sql += "double_%d double, " % (i + 1)
+        for i in range(2000,2500):
+            sql += "float_%d float, " % (i + 1)
+        for i in range(2500,3000):
+            sql += "bool_%d bool, " % (i + 1)
+        for i in range(3000,3500):
+            sql += "bigint_%d bigint, " % (i + 1)
+        for i in range(3500,3800):
+            sql += "nchar_%d nchar(4), " % (i + 1)
+        for i in range(3800,4090):
+            sql += "binary_%d binary(10), " % (i + 1)
+        for i in range(4090,4092):
+            sql += "timestamp_%d timestamp, " % (i + 1)
+        sql += " col4093 binary(22)) "  
+        sql += " tags (loc nchar(20),tag_1 int) "
+        tdLog.info(len(sql))      
+        tdSql.execute(sql)
+
+        sql = " create table table_4096_3 using stable_4096_3 tags ('table_4096_3',1); "
+        tdSql.execute(sql)
+
+        for i in range(self.num4096):
+            sql = "insert into table_4096_3 values(%d, "
+            for j in range(4090): 
+                str = "'%s', " % 'NULL'             
+                sql += str
+            for j in range(4090,4092):
+                str = "%s, " % (self.ts + j)                
+                sql += str
+            sql += "'%s')" % (self.ts + i)
+            tdSql.execute(sql % (self.ts + i))
+        tdSql.query('''select * from table_4096_3 where ts = %d ;''' %(self.ts))
+        tdSql.checkCols(4094)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,501,None)   
+        tdSql.checkData(0,1001,None)   
+        tdSql.checkData(0,1501,None)   
+        tdSql.checkData(0,2001,None)   
+        tdSql.checkData(0,2501,None)   
+        tdSql.checkData(0,3001,None)
+        tdSql.checkData(0,3501,'NULL')   
+        tdSql.checkData(0,3801,'NULL')   
+        tdSql.checkData(0,4091,'2020-09-13 20:26:44.090') 
+        tdSql.checkData(0,4093,'1600000000000')
+        tdSql.query('''select * from stable_4096_3 where ts = %d ;''' %(self.ts))
+        tdSql.checkCols(4096)
+        tdSql.checkData(0,1,None)   
+        tdSql.checkData(0,501,None)   
+        tdSql.checkData(0,1001,None)   
+        tdSql.checkData(0,1501,None)   
+        tdSql.checkData(0,2001,None)   
+        tdSql.checkData(0,2501,None)   
+        tdSql.checkData(0,3001,None)
+        tdSql.checkData(0,3501,'NULL')   
+        tdSql.checkData(0,3801,'NULL')   
+        tdSql.checkData(0,4091,'2020-09-13 20:26:44.090') 
+        tdSql.checkData(0,4093,'1600000000000')
+
+        sql = '''insert into table_4096_3 (ts , int_1,smallint_501 , tinyint_1001 , double_1501 , float_2001 , bool_2501 ,
+                bigint_3001 , nchar_3501 , binary_3801 , timestamp_4091 , col4093 )
+                values('2020-09-10 20:26:40.000' , 1 , 501 , 101 , 1501 , 2001 , 1 , 3001 , '3501' , '3801' ,'2020-09-10 20:26:44.090','1500000000000');'''
+        tdSql.execute(sql)
+        tdSql.query("select * from table_4096_3 where ts ='2020-09-10 20:26:40.000';")
+        tdSql.checkCols(4094)
+        tdSql.checkData(0,1,1)   
+        tdSql.checkData(0,501,501)   
+        tdSql.checkData(0,1001,101)   
+        tdSql.checkData(0,1501,1501)   
+        tdSql.checkData(0,2001,2001)   
+        tdSql.checkData(0,2501,'True')   
+        tdSql.checkData(0,3001,3001)
+        tdSql.checkData(0,3501,'3501')   
+        tdSql.checkData(0,3801,'3801')   
+        tdSql.checkData(0,4091,'2020-09-10 20:26:44.090') 
+        tdSql.checkData(0,4093,'1500000000000') 
+        tdSql.query("select * from stable_4096_3 where ts ='2020-09-10 20:26:40.000';")
+        tdSql.checkCols(4096)
+        tdSql.checkData(0,1,1)   
+        tdSql.checkData(0,501,501)   
+        tdSql.checkData(0,1001,101)   
+        tdSql.checkData(0,1501,1501)   
+        tdSql.checkData(0,2001,2001)   
+        tdSql.checkData(0,2501,'True')   
+        tdSql.checkData(0,3001,3001)
+        tdSql.checkData(0,3501,'3501')   
+        tdSql.checkData(0,3801,'3801')   
+        tdSql.checkData(0,4091,'2020-09-10 20:26:44.090') 
+        tdSql.checkData(0,4093,'1500000000000') 
+
+        # tdDnodes restart force data dropping disk
+        tdDnodes.stop(1)
+        tdDnodes.start(1)
+
+        tdLog.info("========== regular_table ==========") 
+        tdSql.execute('''insert into regular_table_3 values( %d , NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL);''' %(self.ts - 200))
+        sql = '''select * from regular_table_3 where ts = %d ;''' %(self.ts - 200)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,0)   
+        tdSql.checkData(0,2,0)   
+        tdSql.checkData(0,3,0)   
+        tdSql.checkData(0,4,0)   
+        tdSql.checkData(0,5,'False')   
+        tdSql.checkData(0,6,'binary-0')   
+        tdSql.checkData(0,7,'nchar-0')
+        tdSql.checkData(0,8,0)   
+        tdSql.checkData(0,9,0)   
+        tdSql.checkData(0,10,'2020-09-13 20:26:40.000') 
+
+        tdSql.execute('''insert into regular_table_3 values( %d , 0, 0, 0, 0, 0, 'binary+0', 'nchar+0', 0.000000, 0.000000, 1600000000000);''' %(self.ts + 200))
+        sql = '''select * from regular_table_3 where ts = %d ;''' %(self.ts + 200)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,0)   
+        tdSql.checkData(0,2,0)   
+        tdSql.checkData(0,3,0)   
+        tdSql.checkData(0,4,0)   
+        tdSql.checkData(0,5,'False')   
+        tdSql.checkData(0,6,'binary+0')   
+        tdSql.checkData(0,7,'nchar+0')
+        tdSql.checkData(0,8,0)   
+        tdSql.checkData(0,9,0)   
+        tdSql.checkData(0,10,'2020-09-13 20:26:40.000') 
+        tdSql.execute('''insert into regular_table_3 values( %d , 1, 1, 1, 1, 1, 'binary+1', 'nchar+1', 1.000000, 1.000000, 1600000001000);''' %(self.ts + 200))
+        sql = '''select * from regular_table_3 where ts = %d ;''' %(self.ts + 200)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,1)   
+        tdSql.checkData(0,2,1)   
+        tdSql.checkData(0,3,1)   
+        tdSql.checkData(0,4,1)   
+        tdSql.checkData(0,5,'True')   
+        tdSql.checkData(0,6,'binary+1')   
+        tdSql.checkData(0,7,'nchar+1')
+        tdSql.checkData(0,8,1)   
+        tdSql.checkData(0,9,1)   
+        tdSql.checkData(0,10,'2020-09-13 20:26:41.000') 
+
+        tdSql.error('''insert into regular_table_3 values( %d , -2147483648, -9223372036854775807, -32767, -127, 0, 'binary-0', 'nchar-0', 0.000000, 0.000000, 1600000000000);''' %(self.ts - 500))
+        tdSql.error('''insert into regular_table_3 values( %d , -2147483647, -9223372036854775808, -32767, -127, 0, 'binary-0', 'nchar-0', 0.000000, 0.000000, 1600000000000);''' %(self.ts - 500))
+        tdSql.error('''insert into regular_table_3 values( %d , -2147483647, -9223372036854775807, -32768, -127, 0, 'binary-0', 'nchar-0', 0.000000, 0.000000, 1600000000000);''' %(self.ts - 500))
+        tdSql.error('''insert into regular_table_3 values( %d , -2147483647, -9223372036854775807, -32767, -128, 0, 'binary-0', 'nchar-0', 0.000000, 0.000000, 1600000000000);''' %(self.ts - 500))
+        tdSql.error('''insert into regular_table_3 values( %d , -2147483647, -9223372036854775807, -32767, -127, 0, 'binary-0123', 'nchar-0', 0.000000, 0.000000, 1600000000000);''' %(self.ts - 500))
+        tdSql.error('''insert into regular_table_3 values( %d , -2147483647, -9223372036854775807, -32767, -127, 0, 'binary-0', 'nchar-01234', 0.000000, 0.000000, 1600000000000);''' %(self.ts - 500))
+        
+        tdSql.execute('''insert into regular_table_3 values( %d , -2147483647, -9223372036854775807, -32767, -127, 0, 'binary-012', 'nchar-0123', 0.000000, 0.000000, 1600000000000);''' %(self.ts - 500))
+        sql = '''select * from regular_table_3 where ts = %d ;''' %(self.ts - 500)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,-2147483647)   
+        tdSql.checkData(0,2,-9223372036854775807)   
+        tdSql.checkData(0,3,-32767)   
+        tdSql.checkData(0,4,-127)   
+        tdSql.checkData(0,5,'False')   
+        tdSql.checkData(0,6,'binary-012')   
+        tdSql.checkData(0,7,'nchar-0123')
+        tdSql.checkData(0,8,0)   
+        tdSql.checkData(0,9,0)     
+        tdSql.checkData(0,10,'2020-09-13 20:26:44.090')
+
+        tdSql.error('''insert into regular_table_3 values( %d , 2147483648, 9223372036854775807, 32767, 127, 0, 'binary+0', 'nchar+0', 0.000000, 0.000000, 1600000000000);''' %(self.ts + 500))
+        tdSql.error('''insert into regular_table_3 values( %d , 2147483647, 9223372036854775808, 32767, 127, 0, 'binary+0', 'nchar+0', 0.000000, 0.000000, 1600000000000);''' %(self.ts + 500))
+        tdSql.error('''insert into regular_table_3 values( %d , 2147483647, 9223372036854775807, 32768, 127, 0, 'binary+0', 'nchar+0', 0.000000, 0.000000, 1600000000000);''' %(self.ts + 500))
+        tdSql.error('''insert into regular_table_3 values( %d , 2147483647, 9223372036854775807, 32767, 128, 0, 'binary+0', 'nchar+0', 0.000000, 0.000000, 1600000000000);''' %(self.ts + 500))
+        tdSql.error('''insert into regular_table_3 values( %d , 2147483647, 9223372036854775807, 32767, 127, 0, 'binary+0123', 'nchar+0', 0.000000, 0.000000, 1600000000000);''' %(self.ts + 500))
+        tdSql.error('''insert into regular_table_3 values( %d , 2147483647, 9223372036854775807, 32767, 127, 0, 'binary+0', 'nchar+01234', 0.000000, 0.000000, 1600000000000);''' %(self.ts + 500))
+        
+        tdSql.execute('''insert into regular_table_3 values( %d , 2147483647, 9223372036854775807, 32767, 127, 0, 'binary+012', 'nchar+0123', 0.000000, 0.000000, 1600000000000);''' %(self.ts + 500))
+        sql = '''select * from regular_table_3 where ts = %d ;''' %(self.ts + 500)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,2147483647)   
+        tdSql.checkData(0,2,9223372036854775807)   
+        tdSql.checkData(0,3,32767)   
+        tdSql.checkData(0,4,127)   
+        tdSql.checkData(0,5,'False')   
+        tdSql.checkData(0,6,'binary+012')   
+        tdSql.checkData(0,7,'nchar+0123')
+        tdSql.checkData(0,8,0)   
+        tdSql.checkData(0,9,0)     
+        tdSql.checkData(0,10,'2020-09-13 20:26:44.090') 
+        tdSql.execute('''insert into regular_table_3 values( %d , -2147483647, -9223372036854775807, -32767, -127, 0, 'binary-012', 'nchar-0123', 0.000000, 0.000000, 1600000000000);''' %(self.ts + 500))
+        sql = '''select * from regular_table_3 where ts = %d ;''' %(self.ts + 500)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,-2147483647)   
+        tdSql.checkData(0,2,-9223372036854775807)   
+        tdSql.checkData(0,3,-32767)   
+        tdSql.checkData(0,4,-127)   
+        tdSql.checkData(0,5,'False')   
+        tdSql.checkData(0,6,'binary-012')   
+        tdSql.checkData(0,7,'nchar-0123')
+        tdSql.checkData(0,8,0)   
+        tdSql.checkData(0,9,0)   
+        tdSql.checkData(0,10,'2020-09-13 20:26:40.000')  
+
+        tdLog.info("========== stable ==========") 
+        tdSql.execute('''insert into table_3 values( %d , NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL);''' %(self.ts - 200))
+        sql = '''select * from table_3 where ts = %d ;''' %(self.ts - 200)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,0)   
+        tdSql.checkData(0,2,0)   
+        tdSql.checkData(0,3,0)   
+        tdSql.checkData(0,4,0)   
+        tdSql.checkData(0,5,'False')   
+        tdSql.checkData(0,6,'binary-0')   
+        tdSql.checkData(0,7,'nchar-0')
+        tdSql.checkData(0,8,0)   
+        tdSql.checkData(0,9,0)   
+        tdSql.checkData(0,10,'2020-09-13 20:26:40.000') 
+        sql = '''select * from stable_1 where loc = 'table_3' and ts = %d ;''' %(self.ts - 200)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,0)   
+        tdSql.checkData(0,2,0)   
+        tdSql.checkData(0,3,0)   
+        tdSql.checkData(0,4,0)   
+        tdSql.checkData(0,5,'False')   
+        tdSql.checkData(0,6,'binary-0')   
+        tdSql.checkData(0,7,'nchar-0')
+        tdSql.checkData(0,8,0)   
+        tdSql.checkData(0,9,0)   
+        tdSql.checkData(0,10,'2020-09-13 20:26:40.000') 
+
+        tdSql.execute('''insert into table_3 values( %d , 0, 0, 0, 0, 0, 'binary+0', 'nchar+0', 0.000000, 0.000000, 1600000000000);''' %(self.ts + 200))
+        sql = '''select * from table_3 where ts = %d ;''' %(self.ts + 200)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,0)   
+        tdSql.checkData(0,2,0)   
+        tdSql.checkData(0,3,0)   
+        tdSql.checkData(0,4,0)   
+        tdSql.checkData(0,5,'False')   
+        tdSql.checkData(0,6,'binary+0')   
+        tdSql.checkData(0,7,'nchar+0')
+        tdSql.checkData(0,8,0)   
+        tdSql.checkData(0,9,0)   
+        tdSql.checkData(0,10,'2020-09-13 20:26:40.000')
+        sql = '''select * from stable_1 where loc = 'table_3' and ts = %d ;''' %(self.ts + 200)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,0)   
+        tdSql.checkData(0,2,0)   
+        tdSql.checkData(0,3,0)   
+        tdSql.checkData(0,4,0)   
+        tdSql.checkData(0,5,'False')   
+        tdSql.checkData(0,6,'binary+0')   
+        tdSql.checkData(0,7,'nchar+0')
+        tdSql.checkData(0,8,0)   
+        tdSql.checkData(0,9,0)   
+        tdSql.checkData(0,10,'2020-09-13 20:26:40.000') 
+
+        tdSql.execute('''insert into table_3 values( %d , NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL);''' %(self.ts + 200))
+        sql = '''select * from table_3 where ts = %d ;''' %(self.ts + 200)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,0)   
+        tdSql.checkData(0,2,0)   
+        tdSql.checkData(0,3,0)   
+        tdSql.checkData(0,4,0)   
+        tdSql.checkData(0,5,'False')   
+        tdSql.checkData(0,6,'binary+0')   
+        tdSql.checkData(0,7,'nchar+0')
+        tdSql.checkData(0,8,0)   
+        tdSql.checkData(0,9,0)   
+        tdSql.checkData(0,10,'2020-09-13 20:26:40.000') 
+        sql = '''select * from stable_1 where loc = 'table_3' and ts = %d ;''' %(self.ts + 200)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,0)   
+        tdSql.checkData(0,2,0)   
+        tdSql.checkData(0,3,0)   
+        tdSql.checkData(0,4,0)   
+        tdSql.checkData(0,5,'False')   
+        tdSql.checkData(0,6,'binary+0')   
+        tdSql.checkData(0,7,'nchar+0')
+        tdSql.checkData(0,8,0)   
+        tdSql.checkData(0,9,0)   
+        tdSql.checkData(0,10,'2020-09-13 20:26:40.000') 
+
+        tdSql.error('''insert into table_3 values( %d , -2147483648, -9223372036854775807, -32767, -127, 0, 'binary-0', 'nchar-0', 0.000000, 0.000000, 1600000000000);''' %(self.ts - 500))
+        tdSql.error('''insert into table_3 values( %d , -2147483647, -9223372036854775808, -32767, -127, 0, 'binary-0', 'nchar-0', 0.000000, 0.000000, 1600000000000);''' %(self.ts - 500))
+        tdSql.error('''insert into table_3 values( %d , -2147483647, -9223372036854775807, -32768, -127, 0, 'binary-0', 'nchar-0', 0.000000, 0.000000, 1600000000000);''' %(self.ts - 500))
+        tdSql.error('''insert into table_3 values( %d , -2147483647, -9223372036854775807, -32767, -128, 0, 'binary-0', 'nchar-0', 0.000000, 0.000000, 1600000000000);''' %(self.ts - 500))
+        tdSql.error('''insert into table_3 values( %d , -2147483647, -9223372036854775807, -32767, -127, 0, 'binary-0123', 'nchar-0', 0.000000, 0.000000, 1600000000000);''' %(self.ts - 500))
+        tdSql.error('''insert into table_3 values( %d , -2147483647, -9223372036854775807, -32767, -127, 0, 'binary-0', 'nchar-01234', 0.000000, 0.000000, 1600000000000);''' %(self.ts - 500))
+        
+        tdSql.execute('''insert into table_3 values( %d , -2147483647, -9223372036854775807, -32767, -127, 0, 'binary-012', 'nchar-0123', 0.000000, 0.000000, 1600000000000);''' %(self.ts - 500))
+        sql = '''select * from table_3 where ts = %d ;''' %(self.ts - 500)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,-2147483647)   
+        tdSql.checkData(0,2,-9223372036854775807)   
+        tdSql.checkData(0,3,-32767)   
+        tdSql.checkData(0,4,-127)   
+        tdSql.checkData(0,5,'False')   
+        tdSql.checkData(0,6,'binary-012')   
+        tdSql.checkData(0,7,'nchar-0123')
+        tdSql.checkData(0,8,0)   
+        tdSql.checkData(0,9,0)   
+        tdSql.checkData(0,10,'2020-09-13 20:26:44.090')
+        sql = '''select * from stable_1 where loc = 'table_3' and ts = %d ;''' %(self.ts - 500)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,-2147483647)   
+        tdSql.checkData(0,2,-9223372036854775807)   
+        tdSql.checkData(0,3,-32767)   
+        tdSql.checkData(0,4,-127)   
+        tdSql.checkData(0,5,'False')   
+        tdSql.checkData(0,6,'binary-012')   
+        tdSql.checkData(0,7,'nchar-0123')
+        tdSql.checkData(0,8,0)   
+        tdSql.checkData(0,9,0)   
+        tdSql.checkData(0,10,'2020-09-13 20:26:44.090')
+
+        tdSql.error('''insert into table_3 values( %d , 2147483648, 9223372036854775807, 32767, 127, 0, 'binary+0', 'nchar+0', 0.000000, 0.000000, 1600000000000);''' %(self.ts + 500))
+        tdSql.error('''insert into table_3 values( %d , 2147483647, 9223372036854775808, 32767, 127, 0, 'binary+0', 'nchar+0', 0.000000, 0.000000, 1600000000000);''' %(self.ts + 500))
+        tdSql.error('''insert into table_3 values( %d , 2147483647, 9223372036854775807, 32768, 127, 0, 'binary+0', 'nchar+0', 0.000000, 0.000000, 1600000000000);''' %(self.ts + 500))
+        tdSql.error('''insert into table_3 values( %d , 2147483647, 9223372036854775807, 32767, 128, 0, 'binary+0', 'nchar+0', 0.000000, 0.000000, 1600000000000);''' %(self.ts + 500))
+        tdSql.error('''insert into table_3 values( %d , 2147483647, 9223372036854775807, 32767, 127, 0, 'binary+0123', 'nchar+0', 0.000000, 0.000000, 1600000000000);''' %(self.ts + 500))
+        tdSql.error('''insert into table_3 values( %d , 2147483647, 9223372036854775807, 32767, 127, 0, 'binary+0', 'nchar+01234', 0.000000, 0.000000, 1600000000000);''' %(self.ts + 500))
+        
+        tdSql.execute('''insert into table_3 values( %d , 2147483647, 9223372036854775807, 32767, 127, 0, 'binary+012', 'nchar+0123', 0.000000, 0.000000, 1600000000000);''' %(self.ts + 500))
+        sql = '''select * from table_3 where ts = %d ;''' %(self.ts + 500)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,2147483647)   
+        tdSql.checkData(0,2,9223372036854775807)   
+        tdSql.checkData(0,3,32767)   
+        tdSql.checkData(0,4,127)   
+        tdSql.checkData(0,5,'False')   
+        tdSql.checkData(0,6,'binary+012')   
+        tdSql.checkData(0,7,'nchar+0123')
+        tdSql.checkData(0,8,0)   
+        tdSql.checkData(0,9,0)     
+        tdSql.checkData(0,10,'2020-09-13 20:26:44.090') 
+        sql = '''select * from stable_1 where loc = 'table_3' and ts = %d ;''' %(self.ts + 500)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,2147483647)   
+        tdSql.checkData(0,2,9223372036854775807)   
+        tdSql.checkData(0,3,32767)   
+        tdSql.checkData(0,4,127)   
+        tdSql.checkData(0,5,'False')   
+        tdSql.checkData(0,6,'binary+012')   
+        tdSql.checkData(0,7,'nchar+0123')
+        tdSql.checkData(0,8,0)   
+        tdSql.checkData(0,9,0)     
+        tdSql.checkData(0,10,'2020-09-13 20:26:44.090') 
+        tdSql.execute('''insert into table_3 values( %d , -2147483647, -9223372036854775807, -32767, -127, 0, 'binary-012', 'nchar-0123', 0.000000, 0.000000, 1600000000000);''' %(self.ts + 500))
+        sql = '''select * from table_3 where ts = %d ;''' %(self.ts + 500)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,-2147483647)   
+        tdSql.checkData(0,2,-9223372036854775807)   
+        tdSql.checkData(0,3,-32767)   
+        tdSql.checkData(0,4,-127)   
+        tdSql.checkData(0,5,'False')   
+        tdSql.checkData(0,6,'binary-012')   
+        tdSql.checkData(0,7,'nchar-0123')
+        tdSql.checkData(0,8,0)   
+        tdSql.checkData(0,9,0)   
+        tdSql.checkData(0,10,'2020-09-13 20:26:40.000') 
+        sql = '''select * from stable_1 where loc = 'table_3' and ts = %d ;''' %(self.ts + 500)
+        tdSql.query(sql)
+        tdSql.checkData(0,1,-2147483647)   
+        tdSql.checkData(0,2,-9223372036854775807)   
+        tdSql.checkData(0,3,-32767)   
+        tdSql.checkData(0,4,-127)   
+        tdSql.checkData(0,5,'False')   
+        tdSql.checkData(0,6,'binary-012')   
+        tdSql.checkData(0,7,'nchar-0123')
+        tdSql.checkData(0,8,0)   
+        tdSql.checkData(0,9,0)   
+        tdSql.checkData(0,10,'2020-09-13 20:26:40.000') 
+
+
+
+        tdLog.info("========== 4096 regular_table ==========") 
+        sql = '''insert into regular_table_4096_3 (ts , int_1,smallint_501 , tinyint_1001 , double_1501 , float_2001 , bool_2501 ,
+                bigint_3001 , nchar_3501 , binary_3801 , timestamp_4091 , col4095 )
+                values('2020-09-13 20:26:40.000' , 1 , 501 , 101 , 1501 , 2001 , 1 , 3001 , '3501' , '3801' ,'2020-09-13 20:26:44.090','1600000000000');'''
+        tdSql.execute(sql)
+        tdSql.query("select * from regular_table_4096_3 where ts ='2020-09-13 20:26:40.000';")
+        tdSql.checkCols(4096)
+        tdSql.checkData(0,1,1)   
+        tdSql.checkData(0,501,501)   
+        tdSql.checkData(0,1001,101)   
+        tdSql.checkData(0,1501,1501)   
+        tdSql.checkData(0,2001,2001)   
+        tdSql.checkData(0,2501,'True')   
+        tdSql.checkData(0,3001,3001)
+        tdSql.checkData(0,3501,'3501')   
+        tdSql.checkData(0,3801,'3801')   
+        tdSql.checkData(0,4091,'2020-09-13 20:26:44.090') 
+        tdSql.checkData(0,4095,'1600000000000') 
+
+        sql = '''insert into regular_table_4096_3 (ts , int_1,smallint_501 , tinyint_1001 , double_1501 , float_2001 , bool_2501 ,
+                bigint_3001 , nchar_3501 , binary_3801 , timestamp_4091 , col4095 )
+                values('2020-09-10 20:26:40.000' , NULL , NULL , NULL , NULL , NULL , NULL , NULL , NULL , NULL , NULL , NULL);'''
+        tdSql.execute(sql)
+        tdSql.query("select * from regular_table_4096_3 where ts ='2020-09-10 20:26:40.000';")
+        tdSql.checkCols(4096)
+        tdSql.checkData(0,1,1)   
+        tdSql.checkData(0,501,501)   
+        tdSql.checkData(0,1001,101)   
+        tdSql.checkData(0,1501,1501)   
+        tdSql.checkData(0,2001,2001)   
+        tdSql.checkData(0,2501,'True')   
+        tdSql.checkData(0,3001,3001)
+        tdSql.checkData(0,3501,'3501')   
+        tdSql.checkData(0,3801,'3801')   
+        tdSql.checkData(0,4091,'2020-09-10 20:26:44.090') 
+        tdSql.checkData(0,4095,'1500000000000') 
+
+        sql = '''insert into regular_table_4096_3 (ts , int_1,smallint_501 , tinyint_1001 , double_1501 , float_2001 , bool_2501 ,
+                bigint_3001 , nchar_3501 , binary_3801 , timestamp_4091 , col4095 )
+                values('2020-09-13 20:26:40.000' , 2 , 502 , 102 , 1502 , 2002 , 0 , 3002 , '3502' , '3802' ,'2020-09-13 20:26:44.092','1600000002000');'''
+        tdSql.execute(sql)
+        tdSql.query("select * from regular_table_4096_3 where ts ='2020-09-13 20:26:40.000';")
+        tdSql.checkCols(4096)
+        tdSql.checkData(0,1,2)   
+        tdSql.checkData(0,501,502)   
+        tdSql.checkData(0,1001,102)   
+        tdSql.checkData(0,1501,1502)   
+        tdSql.checkData(0,2001,2002)   
+        tdSql.checkData(0,2501,'False')   
+        tdSql.checkData(0,3001,3002)
+        tdSql.checkData(0,3501,'3502')   
+        tdSql.checkData(0,3801,'3802')   
+        tdSql.checkData(0,4091,'2020-09-13 20:26:44.092') 
+        tdSql.checkData(0,4095,'1600000002000') 
+
+
+        tdLog.info("========== 4096 stable ==========") 
+        sql = '''insert into table_4096_3 (ts , int_1,smallint_501 , tinyint_1001 , double_1501 , float_2001 , bool_2501 ,
+                bigint_3001 , nchar_3501 , binary_3801 , timestamp_4091 , col4093 )
+                values('2020-09-13 20:26:40.000' , 1 , 501 , 101 , 1501 , 2001 , 1 , 3001 , '3501' , '3801' ,'2020-09-13 20:26:44.090','1600000000000');'''
+        tdSql.execute(sql)
+        tdSql.query("select * from table_4096_3 where ts ='2020-09-13 20:26:40.000';")
+        tdSql.checkCols(4094)
+        tdSql.checkData(0,1,1)   
+        tdSql.checkData(0,501,501)   
+        tdSql.checkData(0,1001,101)   
+        tdSql.checkData(0,1501,1501)   
+        tdSql.checkData(0,2001,2001)   
+        tdSql.checkData(0,2501,'True')   
+        tdSql.checkData(0,3001,3001)
+        tdSql.checkData(0,3501,'3501')   
+        tdSql.checkData(0,3801,'3801')   
+        tdSql.checkData(0,4091,'2020-09-13 20:26:44.090') 
+        tdSql.checkData(0,4093,'1600000000000') 
+        tdSql.query("select * from stable_4096_3 where ts ='2020-09-13 20:26:40.000';")
+        tdSql.checkCols(4096)
+        tdSql.checkData(0,1,1)   
+        tdSql.checkData(0,501,501)   
+        tdSql.checkData(0,1001,101)   
+        tdSql.checkData(0,1501,1501)   
+        tdSql.checkData(0,2001,2001)   
+        tdSql.checkData(0,2501,'True')   
+        tdSql.checkData(0,3001,3001)
+        tdSql.checkData(0,3501,'3501')   
+        tdSql.checkData(0,3801,'3801')  
+        tdSql.checkData(0,4091,'2020-09-13 20:26:44.090') 
+        tdSql.checkData(0,4093,'1600000000000') 
+
+        sql = '''insert into table_4096_3 (ts , int_1,smallint_501 , tinyint_1001 , double_1501 , float_2001 , bool_2501 ,
+                bigint_3001 , nchar_3501 , binary_3801 , timestamp_4091 , col4093 )
+                values('2020-09-10 20:26:40.000' , NULL , NULL , NULL , NULL , NULL , NULL , NULL , NULL , NULL , NULL , NULL);'''
+        tdSql.execute(sql)
+        tdSql.query("select * from table_4096_3 where ts ='2020-09-10 20:26:40.000';")
+        tdSql.checkCols(4094)
+        tdSql.checkData(0,1,1)   
+        tdSql.checkData(0,501,501)   
+        tdSql.checkData(0,1001,101)   
+        tdSql.checkData(0,1501,1501)   
+        tdSql.checkData(0,2001,2001)   
+        tdSql.checkData(0,2501,'True')   
+        tdSql.checkData(0,3001,3001)
+        tdSql.checkData(0,3501,'3501')   
+        tdSql.checkData(0,3801,'3801')   
+        tdSql.checkData(0,4091,'2020-09-10 20:26:44.090') 
+        tdSql.checkData(0,4093,'1500000000000') 
+        tdSql.query("select * from stable_4096_3 where ts ='2020-09-10 20:26:40.000';")
+        tdSql.checkCols(4096)
+        tdSql.checkData(0,1,1)   
+        tdSql.checkData(0,501,501)   
+        tdSql.checkData(0,1001,101)   
+        tdSql.checkData(0,1501,1501)   
+        tdSql.checkData(0,2001,2001)   
+        tdSql.checkData(0,2501,'True')   
+        tdSql.checkData(0,3001,3001)
+        tdSql.checkData(0,3501,'3501')   
+        tdSql.checkData(0,3801,'3801')   
+        tdSql.checkData(0,4091,'2020-09-10 20:26:44.090') 
+        tdSql.checkData(0,4093,'1500000000000')
+
+        sql = '''insert into table_4096_3 (ts , int_1,smallint_501 , tinyint_1001 , double_1501 , float_2001 , bool_2501 ,
+                bigint_3001 , nchar_3501 , binary_3801 , timestamp_4091 , col4093 )
+                values('2020-09-13 20:26:40.000' , 2 , 502 , 102 , 1502 , 2002 , 0 , 3002 , '3502' , '3802' ,'2020-09-13 20:26:44.092','1600000002000');'''
+        tdSql.execute(sql)
+        tdSql.query("select * from table_4096_3 where ts ='2020-09-13 20:26:40.000';")
+        tdSql.checkCols(4094)
+        tdSql.checkData(0,1,2)   
+        tdSql.checkData(0,501,502)   
+        tdSql.checkData(0,1001,102)   
+        tdSql.checkData(0,1501,1502)   
+        tdSql.checkData(0,2001,2002)   
+        tdSql.checkData(0,2501,'False')   
+        tdSql.checkData(0,3001,3002)
+        tdSql.checkData(0,3501,'3502')   
+        tdSql.checkData(0,3801,'3802')   
+        tdSql.checkData(0,4091,'2020-09-13 20:26:44.092') 
+        tdSql.checkData(0,4093,'1600000002000') 
+        tdSql.query("select * from stable_4096_3 where ts ='2020-09-13 20:26:40.000';")
+        tdSql.checkCols(4096)
+        tdSql.checkData(0,1,2)   
+        tdSql.checkData(0,501,502)   
+        tdSql.checkData(0,1001,102)   
+        tdSql.checkData(0,1501,1502)   
+        tdSql.checkData(0,2001,2002)   
+        tdSql.checkData(0,2501,'False')   
+        tdSql.checkData(0,3001,3002)
+        tdSql.checkData(0,3501,'3502')   
+        tdSql.checkData(0,3801,'3802')   
+        tdSql.checkData(0,4091,'2020-09-13 20:26:44.092') 
+        tdSql.checkData(0,4093,'1600000002000') 
+        
+
+        endTime = time.time()
+        print("total time %ds" % (endTime - startTime))  
+
+
+    def stop(self):
+        tdSql.close()
+        tdLog.success("%s successfully executed" % __file__)
+
+
+tdCases.addWindows(__file__, TDTestCase())
+tdCases.addLinux(__file__, TDTestCase())
\ No newline at end of file
diff --git a/tests/pytest/insert/schemalessInsert.py b/tests/pytest/insert/schemalessInsert.py
new file mode 100644
index 0000000000000000000000000000000000000000..5c93095a1ee414a1559f48595a3e2e412463e829
--- /dev/null
+++ b/tests/pytest/insert/schemalessInsert.py
@@ -0,0 +1,1234 @@
+###################################################################
+#           Copyright (c) 2021 by TAOS Technologies, Inc.
+#                     All rights reserved.
+#
+#  This file is proprietary and confidential to TAOS Technologies.
+#  No part of this file may be reproduced, stored, transmitted,
+#  disclosed or used in any form or by any means other than as
+#  expressly provided by the written permission from Jianhui Tao
+#
+###################################################################
+
+# -*- coding: utf-8 -*-
+
+import random
+import string
+import time
+from copy import deepcopy
+import numpy as np
+from util.log import *
+from util.cases import *
+from util.sql import *
+import threading
+
+
+class TDTestCase:
+    def init(self, conn, logSql):
+        tdLog.debug("start to execute %s" % __file__)
+        tdSql.init(conn.cursor(), logSql)
+        self._conn = conn 
+
+    def createDb(self, name="test", db_update_tag=0):
+        if db_update_tag == 0:
+            tdSql.execute(f"drop database if exists {name}")
+            tdSql.execute(f"create database if not exists {name} precision 'us'")
+        else:
+            tdSql.execute(f"drop database if exists {name}")
+            tdSql.execute(f"create database if not exists {name} precision 'us' update 1")
+        tdSql.execute(f'use {name}')
+
+    def getLongName(self, len, mode = "mixed"):
+        """
+            generate long name
+            mode could be numbers/letters/mixed
+        """    
+        if mode is "numbers": 
+            chars = ''.join(random.choice(string.digits) for i in range(len))
+        elif mode is "letters": 
+            chars = ''.join(random.choice(string.ascii_letters.lower()) for i in range(len))
+        else:
+            chars = ''.join(random.choice(string.ascii_letters.lower() + string.digits) for i in range(len))
+        return chars
+
+    def timeTrans(self, time_value):
+        if time_value.endswith("ns"):
+            ts = int(''.join(list(filter(str.isdigit, time_value))))/1000000000
+        elif time_value.endswith("us") or time_value.isdigit() and int(time_value) != 0:
+            ts = int(''.join(list(filter(str.isdigit, time_value))))/1000000
+        elif time_value.endswith("ms"):
+            ts = int(''.join(list(filter(str.isdigit, time_value))))/1000
+        elif time_value.endswith("s") and list(time_value)[-1] not in "num":
+            ts = int(''.join(list(filter(str.isdigit, time_value))))/1
+        elif int(time_value) == 0:
+            ts = time.time()
+        else:
+            print("input ts maybe not right format")
+        ulsec = repr(ts).split('.')[1][:6]
+        if len(ulsec) < 6 and int(ulsec) != 0:
+            ulsec = int(ulsec) * (10 ** (6 - len(ulsec)))
+        elif int(ulsec) == 0:
+            ulsec *= 6
+            # * follow two rows added for tsCheckCase
+            td_ts = time.strftime("%Y-%m-%d %H:%M:%S", time.localtime(ts))
+            return td_ts
+        #td_ts = time.strftime("%Y-%m-%d %H:%M:%S", time.localtime(ts))
+        td_ts = time.strftime("%Y-%m-%d %H:%M:%S.{}".format(ulsec), time.localtime(ts))
+        return td_ts
+        #return repr(datetime.datetime.strptime(td_ts, "%Y-%m-%d %H:%M:%S.%f"))
+    
+    def dateToTs(self, datetime_input):
+        return int(time.mktime(time.strptime(datetime_input, "%Y-%m-%d %H:%M:%S.%f")))
+
+    def getTdTypeValue(self, value):
+        if value.endswith("i8"):
+            td_type = "TINYINT"
+            td_tag_value = ''.join(list(value)[:-2])
+        elif value.endswith("i16"):
+            td_type = "SMALLINT"
+            td_tag_value = ''.join(list(value)[:-3])
+        elif value.endswith("i32"):
+            td_type = "INT"
+            td_tag_value = ''.join(list(value)[:-3])
+        elif value.endswith("i64"):
+            td_type = "BIGINT"
+            td_tag_value = ''.join(list(value)[:-3])
+        elif value.endswith("u64"):
+            td_type = "BIGINT UNSIGNED"
+            td_tag_value = ''.join(list(value)[:-3])
+        elif value.endswith("f32"):
+            td_type = "FLOAT"
+            td_tag_value = ''.join(list(value)[:-3])
+            td_tag_value = '{}'.format(np.float32(td_tag_value))
+        elif value.endswith("f64"):
+            td_type = "DOUBLE"
+            td_tag_value = ''.join(list(value)[:-3])
+        elif value.startswith('L"'):
+            td_type = "NCHAR"
+            td_tag_value = ''.join(list(value)[2:-1])
+        elif value.startswith('"') and value.endswith('"'):
+            td_type = "BINARY"
+            td_tag_value = ''.join(list(value)[1:-1])
+        elif value.lower() == "t" or value == "true" or value == "True":
+            td_type = "BOOL"
+            td_tag_value = "True"
+        elif value.lower() == "f" or value == "false" or value == "False":
+            td_type = "BOOL"
+            td_tag_value = "False"
+        else:
+            td_type = "FLOAT"
+            td_tag_value = value
+        return td_type, td_tag_value
+
+    def typeTrans(self, type_list):
+        type_num_list = []
+        for tp in type_list:
+            if tp.upper() == "TIMESTAMP":
+                type_num_list.append(9)
+            elif tp.upper() == "BOOL":
+                type_num_list.append(1)
+            elif tp.upper() == "TINYINT":
+                type_num_list.append(2)
+            elif tp.upper() == "SMALLINT":
+                type_num_list.append(3)
+            elif tp.upper() == "INT":
+                type_num_list.append(4)
+            elif tp.upper() == "BIGINT":
+                type_num_list.append(5)
+            elif tp.upper() == "FLOAT":
+                type_num_list.append(6)
+            elif tp.upper() == "DOUBLE":
+                type_num_list.append(7)
+            elif tp.upper() == "BINARY":
+                type_num_list.append(8)
+            elif tp.upper() == "NCHAR":
+                type_num_list.append(10)
+            elif tp.upper() == "BIGINT UNSIGNED":
+                type_num_list.append(14)
+        return type_num_list
+
+    def inputHandle(self, input_sql):
+        input_sql_split_list = input_sql.split(" ")
+
+        stb_tag_list = input_sql_split_list[0].split(',')
+        stb_col_list = input_sql_split_list[1].split(',')
+        ts_value = self.timeTrans(input_sql_split_list[2])
+
+        stb_name = stb_tag_list[0]
+        stb_tag_list.pop(0)
+
+        tag_name_list = []
+        tag_value_list = []
+        td_tag_value_list = []
+        td_tag_type_list = []
+
+        col_name_list = []
+        col_value_list = []
+        td_col_value_list = []
+        td_col_type_list = []
+
+        for elm in stb_tag_list:
+            if "id=" in elm.lower():
+                tb_name = elm.split('=')[1]
+            else:
+                tag_name_list.append(elm.split("=")[0])
+                tag_value_list.append(elm.split("=")[1])
+                tb_name = ""
+                td_tag_value_list.append(self.getTdTypeValue(elm.split("=")[1])[1])
+                td_tag_type_list.append(self.getTdTypeValue(elm.split("=")[1])[0])
+        
+        for elm in stb_col_list:
+            col_name_list.append(elm.split("=")[0])
+            col_value_list.append(elm.split("=")[1])
+            td_col_value_list.append(self.getTdTypeValue(elm.split("=")[1])[1])
+            td_col_type_list.append(self.getTdTypeValue(elm.split("=")[1])[0])
+
+        final_field_list = []
+        final_field_list.extend(col_name_list)
+        final_field_list.extend(tag_name_list)
+
+        final_type_list = []
+        final_type_list.append("TIMESTAMP")
+        final_type_list.extend(td_col_type_list)
+        final_type_list.extend(td_tag_type_list)
+        final_type_list = self.typeTrans(final_type_list)
+
+        final_value_list = []
+        final_value_list.append(ts_value)
+        final_value_list.extend(td_col_value_list)
+        final_value_list.extend(td_tag_value_list)
+        return final_value_list, final_field_list, final_type_list, stb_name, tb_name
+
+    def genFullTypeSql(self, stb_name="", tb_name="", t0="", t1="127i8", t2="32767i16", t3="2147483647i32",
+                        t4="9223372036854775807i64", t5="11.12345f32", t6="22.123456789f64", t7="\"binaryTagValue\"",
+                        t8="L\"ncharTagValue\"", c0="", c1="127i8", c2="32767i16", c3="2147483647i32",
+                        c4="9223372036854775807i64", c5="11.12345f32", c6="22.123456789f64", c7="\"binaryColValue\"", 
+                        c8="L\"ncharColValue\"", c9="7u64", ts="1626006833639000000ns",
+                        id_noexist_tag=None, id_change_tag=None, id_upper_tag=None, id_double_tag=None,
+                        ct_add_tag=None, ct_am_tag=None, ct_ma_tag=None, ct_min_tag=None):
+        if stb_name == "":
+            stb_name = self.getLongName(len=6, mode="letters")
+        if tb_name == "":
+            tb_name = f'{stb_name}_{random.randint(0, 65535)}_{random.randint(0, 65535)}'
+        if t0 == "":
+            t0 = random.choice(["f", "F", "false", "False", "t", "T", "true", "True"])
+        if c0 == "":
+            c0 = random.choice(["f", "F", "false", "False", "t", "T", "true", "True"])
+        #sql_seq = f'{stb_name},id=\"{tb_name}\",t0={t0},t1=127i8,t2=32767i16,t3=125.22f64,t4=11.321f32,t5=11.12345f32,t6=22.123456789f64,t7=\"binaryTagValue\",t8=L\"ncharTagValue\" c0={bool_value},c1=127i8,c2=32767i16,c3=2147483647i32,c4=9223372036854775807i64,c5=11.12345f32,c6=22.123456789f64,c7=\"binaryValue\",c8=L\"ncharValue\" 1626006833639000000ns'
+        if id_upper_tag is not None:
+            id = "ID"
+        else:
+            id = "id"
+        sql_seq = f'{stb_name},{id}=\"{tb_name}\",t0={t0},t1={t1},t2={t2},t3={t3},t4={t4},t5={t5},t6={t6},t7={t7},t8={t8} c0={c0},c1={c1},c2={c2},c3={c3},c4={c4},c5={c5},c6={c6},c7={c7},c8={c8},c9={c9} {ts}'
+        if id_noexist_tag is not None:
+            sql_seq = f'{stb_name},t0={t0},t1={t1},t2={t2},t3={t3},t4={t4},t5={t5},t6={t6},t7={t7},t8={t8} c0={c0},c1={c1},c2={c2},c3={c3},c4={c4},c5={c5},c6={c6},c7={c7},c8={c8},c9={c9} {ts}'
+            if ct_add_tag is not None:
+                sql_seq = f'{stb_name},t0={t0},t1={t1},t2={t2},t3={t3},t4={t4},t5={t5},t6={t6},t7={t7},t8={t8},t9={t8} c0={c0},c1={c1},c2={c2},c3={c3},c4={c4},c5={c5},c6={c6},c7={c7},c8={c8},c9={c9} {ts}'
+        if id_change_tag is not None:
+            sql_seq = f'{stb_name},t0={t0},t1={t1},{id}=\"{tb_name}\",t2={t2},t3={t3},t4={t4},t5={t5},t6={t6},t7={t7},t8={t8} c0={c0},c1={c1},c2={c2},c3={c3},c4={c4},c5={c5},c6={c6},c7={c7},c8={c8},c9={c9} {ts}'
+        if id_double_tag is not None:
+            sql_seq = f'{stb_name},{id}=\"{tb_name}_1\",t0={t0},t1={t1},{id}=\"{tb_name}_2\",t2={t2},t3={t3},t4={t4},t5={t5},t6={t6},t7={t7},t8={t8} c0={c0},c1={c1},c2={c2},c3={c3},c4={c4},c5={c5},c6={c6},c7={c7},c8={c8},c9={c9} {ts}'
+        if ct_add_tag is not None:
+            sql_seq = f'{stb_name},{id}=\"{tb_name}\",t0={t0},t1={t1},t2={t2},t3={t3},t4={t4},t5={t5},t6={t6},t7={t7},t8={t8},t11={t1},t10={t8} c0={c0},c1={c1},c2={c2},c3={c3},c4={c4},c5={c5},c6={c6},c7={c7},c8={c8},c9={c9},c11={c8},c10={t0} {ts}'
+        if ct_am_tag is not None:
+            sql_seq = f'{stb_name},{id}=\"{tb_name}\",t0={t0},t1={t1},t2={t2},t3={t3},t4={t4},t5={t5},t6={t6} c0={c0},c1={c1},c2={c2},c3={c3},c4={c4},c5={c5},c6={c6},c7={c7},c8={c8},c9={c9},c11={c8},c10={t0} {ts}'
+            if id_noexist_tag is not None:
+                    sql_seq = f'{stb_name},t0={t0},t1={t1},t2={t2},t3={t3},t4={t4},t5={t5},t6={t6} c0={c0},c1={c1},c2={c2},c3={c3},c4={c4},c5={c5},c6={c6},c7={c7},c8={c8},c9={c9},c11={c8},c10={t0} {ts}'
+        if ct_ma_tag is not None:
+            sql_seq = f'{stb_name},{id}=\"{tb_name}\",t0={t0},t1={t1},t2={t2},t3={t3},t4={t4},t5={t5},t6={t6},t7={t7},t8={t8},t11={t1},t10={t8} c0={c0},c1={c1},c2={c2},c3={c3},c4={c4},c5={c5},c6={c6} {ts}'
+            if id_noexist_tag is not None:
+                sql_seq = f'{stb_name},t0={t0},t1={t1},t2={t2},t3={t3},t4={t4},t5={t5},t6={t6},t7={t7},t8={t8},t11={t1},t10={t8} c0={c0},c1={c1},c2={c2},c3={c3},c4={c4},c5={c5},c6={c6} {ts}'
+        if ct_min_tag is not None:
+            sql_seq = f'{stb_name},{id}=\"{tb_name}\",t0={t0},t1={t1},t2={t2},t3={t3},t4={t4},t5={t5},t6={t6} c0={c0},c1={c1},c2={c2},c3={c3},c4={c4},c5={c5},c6={c6} {ts}'
+        return sql_seq, stb_name
+    
+    def genMulTagColStr(self, genType, count):
+        """
+            genType must be tag/col
+        """
+        tag_str = ""
+        col_str = ""
+        if genType == "tag":
+            for i in range(0, count):
+                if i < (count-1):
+                    tag_str += f't{i}=f,'
+                else:
+                    tag_str += f't{i}=f '
+            return tag_str
+        if genType == "col":
+            for i in range(0, count):
+                if i < (count-1):
+                    col_str += f'c{i}=t,'
+                else:
+                    col_str += f'c{i}=t '
+            return col_str
+
+    def genLongSql(self, tag_count, col_count):
+        stb_name = self.getLongName(7, mode="letters")
+        tb_name = f'{stb_name}_1'
+        tag_str = self.genMulTagColStr("tag", tag_count)
+        col_str = self.genMulTagColStr("col", col_count)
+        ts = "1626006833640000000ns"
+        long_sql = stb_name + ',' + f'id=\"{tb_name}\"' + ',' + tag_str + col_str + ts
+        return long_sql, stb_name
+
+    def getNoIdTbName(self, stb_name):
+        query_sql = f"select tbname from {stb_name}"
+        tb_name = self.resHandle(query_sql, True)[0][0]
+        return tb_name
+
+    def resHandle(self, query_sql, query_tag):
+        tdSql.execute('reset query cache')
+        row_info = tdSql.query(query_sql, query_tag)
+        col_info = tdSql.getColNameList(query_sql, query_tag)
+        res_row_list = []
+        sub_list = []
+        for row_mem in row_info:
+            for i in row_mem:
+                sub_list.append(str(i))
+            res_row_list.append(sub_list)
+        res_field_list_without_ts = col_info[0][1:]
+        res_type_list = col_info[1]
+        return res_row_list, res_field_list_without_ts, res_type_list
+
+    def resCmp(self, input_sql, stb_name, query_sql="select * from", condition="", ts=None, id=True, none_check_tag=None):
+        expect_list = self.inputHandle(input_sql)
+        self._conn.insertLines([input_sql])
+        query_sql = f"{query_sql} {stb_name} {condition}"
+        res_row_list, res_field_list_without_ts, res_type_list = self.resHandle(query_sql, True)
+        if ts == 0:
+            res_ts = self.dateToTs(res_row_list[0][0])
+            current_time = time.time()
+            if current_time - res_ts < 60:
+                tdSql.checkEqual(res_row_list[0][1:], expect_list[0][1:])
+            else:
+                print("timeout")
+                tdSql.checkEqual(res_row_list[0], expect_list[0])
+        else:
+            if none_check_tag is not None:
+                none_index_list = [i for i,x in enumerate(res_row_list[0]) if x=="None"]
+                none_index_list.reverse()
+                for j in none_index_list:
+                    res_row_list[0].pop(j)
+                    expect_list[0].pop(j)
+            tdSql.checkEqual(res_row_list[0], expect_list[0])
+        tdSql.checkEqual(res_field_list_without_ts, expect_list[1])
+        tdSql.checkEqual(res_type_list, expect_list[2])
+
+    def cleanStb(self):
+        query_sql = "show stables"
+        res_row_list = tdSql.query(query_sql, True)
+        stb_list = map(lambda x: x[0], res_row_list)
+        for stb in stb_list:
+            tdSql.execute(f'drop table if exists {stb}')
+
+    def initCheckCase(self):
+        """
+            normal tags and cols, one for every elm
+        """
+        self.cleanStb()
+        input_sql, stb_name = self.genFullTypeSql()
+        self.resCmp(input_sql, stb_name)
+
+    def boolTypeCheckCase(self):
+        """
+            check all normal type
+        """
+        self.cleanStb()
+        full_type_list = ["f", "F", "false", "False", "t", "T", "true", "True"]
+        for t_type in full_type_list:
+            input_sql, stb_name = self.genFullTypeSql(c0=t_type, t0=t_type)
+            self.resCmp(input_sql, stb_name)
+        
+    def symbolsCheckCase(self):
+        """
+            check symbols = `~!@#$%^&*()_-+={[}]\|:;'\",<.>/? 
+        """
+        '''
+            please test :
+            binary_symbols = '\"abcd`~!@#$%^&*()_-{[}]|:;<.>?lfjal"\'\'"\"'
+        '''
+        self.cleanStb()
+        binary_symbols = '\"abcd`~!@#$%^&*()_-{[}]|:;<.>?lfjal"\"'
+        nchar_symbols = f'L{binary_symbols}'
+        input_sql, stb_name = self.genFullTypeSql(c7=binary_symbols, c8=nchar_symbols, t7=binary_symbols, t8=nchar_symbols)
+        self.resCmp(input_sql, stb_name)
+
+    def tsCheckCase(self):
+        """
+            test ts list --> ["1626006833639000000ns", "1626006833639019us", "1626006833640ms", "1626006834s", "1626006822639022"]
+            # ! us级时间戳都为0时，数据库中查询显示，但python接口拿到的结果不显示 .000000的情况请确认，目前修改时间处理代码可以通过
+        """
+        self.cleanStb()
+        ts_list = ["1626006833639000000ns", "1626006833639019us", "1626006833640ms", "1626006834s", "1626006822639022", 0]
+        for ts in ts_list:
+            input_sql, stb_name = self.genFullTypeSql(ts=ts)
+            self.resCmp(input_sql, stb_name, ts=ts)
+    
+    def idSeqCheckCase(self):
+        """
+            check id.index in tags
+            eg: t0=**,id=**,t1=**
+        """
+        self.cleanStb()
+        input_sql, stb_name = self.genFullTypeSql(id_change_tag=True)
+        self.resCmp(input_sql, stb_name)
+    
+    def idUpperCheckCase(self):
+        """
+            check id param
+            eg: id and ID
+        """
+        self.cleanStb()
+        input_sql, stb_name = self.genFullTypeSql(id_upper_tag=True)
+        self.resCmp(input_sql, stb_name)
+        input_sql, stb_name = self.genFullTypeSql(id_change_tag=True, id_upper_tag=True)
+        self.resCmp(input_sql, stb_name)
+
+    def noIdCheckCase(self):
+        """
+            id not exist
+        """
+        self.cleanStb()
+        input_sql, stb_name = self.genFullTypeSql(id_noexist_tag=True)
+        self.resCmp(input_sql, stb_name)
+        query_sql = f"select tbname from {stb_name}"
+        res_row_list = self.resHandle(query_sql, True)[0]
+        if len(res_row_list[0][0]) > 0:
+            tdSql.checkColNameList(res_row_list, res_row_list)
+        else:
+            tdSql.checkColNameList(res_row_list, "please check noIdCheckCase")
+
+    def maxColTagCheckCase(self):
+        """
+            max tag count is 128
+            max col count is ??
+        """
+        for input_sql in [self.genLongSql(128, 1)[0], self.genLongSql(1, 4094)[0]]:
+            self.cleanStb()
+            code = self._conn.insertLines([input_sql])
+            tdSql.checkEqual(code, 0)
+        for input_sql in [self.genLongSql(129, 1)[0], self.genLongSql(1, 4095)[0]]:
+            self.cleanStb()
+            code = self._conn.insertLines([input_sql])
+            tdSql.checkNotEqual(code, 0)
+
+    def idIllegalNameCheckCase(self):
+        """
+            test illegal id name
+            mix "`~!@#$¥%^&*()-+={}|[]、「」【】\:;《》<>?"
+        """
+        self.cleanStb()
+        rstr = list("`~!@#$¥%^&*()-+={}|[]、「」【】\:;《》<>?")
+        for i in rstr:
+            input_sql = self.genFullTypeSql(tb_name=f"\"aaa{i}bbb\"")[0]
+            code = self._conn.insertLines([input_sql])
+            tdSql.checkNotEqual(code, 0)
+
+    def idStartWithNumCheckCase(self):
+        """
+            id is start with num
+        """
+        self.cleanStb()
+        input_sql = self.genFullTypeSql(tb_name=f"\"1aaabbb\"")[0]
+        code = self._conn.insertLines([input_sql])
+        tdSql.checkNotEqual(code, 0)
+
+    def nowTsCheckCase(self):
+        """
+            check now unsupported
+        """
+        self.cleanStb()
+        input_sql = self.genFullTypeSql(ts="now")[0]
+        code = self._conn.insertLines([input_sql])
+        tdSql.checkNotEqual(code, 0)
+
+    def dateFormatTsCheckCase(self):
+        """
+            check date format ts unsupported
+        """
+        self.cleanStb()
+        input_sql = self.genFullTypeSql(ts="2021-07-21\ 19:01:46.920")[0]
+        code = self._conn.insertLines([input_sql])
+        tdSql.checkNotEqual(code, 0)
+    
+    def illegalTsCheckCase(self):
+        """
+            check ts format like 16260068336390us19
+        """
+        self.cleanStb()
+        input_sql = self.genFullTypeSql(ts="16260068336390us19")[0]
+        code = self._conn.insertLines([input_sql])
+        tdSql.checkNotEqual(code, 0)
+
+    def tagValueLengthCheckCase(self):
+        """
+            check full type tag value limit
+        """
+        self.cleanStb()
+        # i8
+        for t1 in ["-127i8", "127i8"]:
+            input_sql, stb_name = self.genFullTypeSql(t1=t1)
+            self.resCmp(input_sql, stb_name)
+        for t1 in ["-128i8", "128i8"]:
+            input_sql = self.genFullTypeSql(t1=t1)[0]
+            code = self._conn.insertLines([input_sql])
+            tdSql.checkNotEqual(code, 0)
+
+        #i16
+        for t2 in ["-32767i16", "32767i16"]:
+            input_sql, stb_name = self.genFullTypeSql(t2=t2)
+            self.resCmp(input_sql, stb_name)
+        for t2 in ["-32768i16", "32768i16"]:
+            input_sql = self.genFullTypeSql(t2=t2)[0]
+            code = self._conn.insertLines([input_sql])
+            tdSql.checkNotEqual(code, 0)
+
+        #i32
+        for t3 in ["-2147483647i32", "2147483647i32"]:
+            input_sql, stb_name = self.genFullTypeSql(t3=t3)
+            self.resCmp(input_sql, stb_name)
+        for t3 in ["-2147483648i32", "2147483648i32"]:
+            input_sql = self.genFullTypeSql(t3=t3)[0]
+            code = self._conn.insertLines([input_sql])
+            tdSql.checkNotEqual(code, 0)
+
+        #i64
+        for t4 in ["-9223372036854775807i64", "9223372036854775807i64"]:
+            input_sql, stb_name = self.genFullTypeSql(t4=t4)
+            self.resCmp(input_sql, stb_name)
+        for t4 in ["-9223372036854775808i64", "9223372036854775808i64"]:
+            input_sql = self.genFullTypeSql(t4=t4)[0]
+            code = self._conn.insertLines([input_sql])
+            tdSql.checkNotEqual(code, 0)
+
+        # f32
+        for t5 in [f"{-3.4028234663852885981170418348451692544*(10**38)}f32", f"{3.4028234663852885981170418348451692544*(10**38)}f32"]:
+            input_sql, stb_name = self.genFullTypeSql(t5=t5)
+            self.resCmp(input_sql, stb_name)
+        # * limit set to 4028234664*(10**38)
+        for t5 in [f"{-3.4028234664*(10**38)}f32", f"{3.4028234664*(10**38)}f32"]:
+            input_sql = self.genFullTypeSql(t5=t5)[0]
+            code = self._conn.insertLines([input_sql])
+            tdSql.checkNotEqual(code, 0)
+
+        # f64
+        for t6 in [f'{-1.79769*(10**308)}f64', f'{-1.79769*(10**308)}f64']:
+            input_sql, stb_name = self.genFullTypeSql(t6=t6)
+            self.resCmp(input_sql, stb_name)
+        # * limit set to 1.797693134862316*(10**308)
+        for c6 in [f'{-1.797693134862316*(10**308)}f64', f'{-1.797693134862316*(10**308)}f64']:
+            input_sql = self.genFullTypeSql(c6=c6)[0]
+            code = self._conn.insertLines([input_sql])
+            tdSql.checkNotEqual(code, 0)
+
+        # binary 
+        stb_name = self.getLongName(7, "letters")
+        input_sql = f'{stb_name},t0=t,t1="{self.getLongName(16374, "letters")}" c0=f 1626006833639000000ns'
+        code = self._conn.insertLines([input_sql])
+        tdSql.checkEqual(code, 0)
+        input_sql = f'{stb_name},t0=t,t1="{self.getLongName(16375, "letters")}" c0=f 1626006833639000000ns'
+        code = self._conn.insertLines([input_sql])
+        tdSql.checkNotEqual(code, 0)
+
+        # nchar
+        # * legal nchar could not be larger than 16374/4
+        stb_name = self.getLongName(7, "letters")
+        input_sql = f'{stb_name},t0=t,t1=L"{self.getLongName(4093, "letters")}" c0=f 1626006833639000000ns'
+        code = self._conn.insertLines([input_sql])
+        tdSql.checkEqual(code, 0)
+        input_sql = f'{stb_name},t0=t,t1=L"{self.getLongName(4094, "letters")}" c0=f 1626006833639000000ns'
+        code = self._conn.insertLines([input_sql])
+        tdSql.checkNotEqual(code, 0)
+
+    def colValueLengthCheckCase(self):
+        """
+            check full type col value limit
+        """
+        self.cleanStb()
+        # i8
+        for c1 in ["-127i8", "127i8"]:
+            input_sql, stb_name = self.genFullTypeSql(c1=c1)
+            self.resCmp(input_sql, stb_name)
+
+        for c1 in ["-128i8", "128i8"]:
+            input_sql = self.genFullTypeSql(c1=c1)[0]
+            code = self._conn.insertLines([input_sql])
+            tdSql.checkNotEqual(code, 0)
+        # i16
+        for c2 in ["-32767i16"]:
+            input_sql, stb_name = self.genFullTypeSql(c2=c2)
+            self.resCmp(input_sql, stb_name)
+        for c2 in ["-32768i16", "32768i16"]:
+            input_sql = self.genFullTypeSql(c2=c2)[0]
+            code = self._conn.insertLines([input_sql])
+            tdSql.checkNotEqual(code, 0)
+
+        # i32
+        for c3 in ["-2147483647i32"]:
+            input_sql, stb_name = self.genFullTypeSql(c3=c3)
+            self.resCmp(input_sql, stb_name)
+        for c3 in ["-2147483648i32", "2147483648i32"]:
+            input_sql = self.genFullTypeSql(c3=c3)[0]
+            code = self._conn.insertLines([input_sql])
+            tdSql.checkNotEqual(code, 0)
+
+        # i64
+        for c4 in ["-9223372036854775807i64"]:
+            input_sql, stb_name = self.genFullTypeSql(c4=c4)
+            self.resCmp(input_sql, stb_name)
+        for c4 in ["-9223372036854775808i64", "9223372036854775808i64"]:
+            input_sql = self.genFullTypeSql(c4=c4)[0]
+            code = self._conn.insertLines([input_sql])
+            tdSql.checkNotEqual(code, 0)
+
+        # f32       
+        for c5 in [f"{-3.4028234663852885981170418348451692544*(10**38)}f32", f"{3.4028234663852885981170418348451692544*(10**38)}f32"]:
+            input_sql, stb_name = self.genFullTypeSql(c5=c5)
+            self.resCmp(input_sql, stb_name)
+        # * limit set to 4028234664*(10**38)
+        for c5 in [f"{-3.4028234664*(10**38)}f32", f"{3.4028234664*(10**38)}f32"]:
+            input_sql = self.genFullTypeSql(c5=c5)[0]
+            code = self._conn.insertLines([input_sql])
+            tdSql.checkNotEqual(code, 0)
+
+        # f64
+        for c6 in [f'{-1.79769313486231570814527423731704356798070567525844996598917476803157260780*(10**308)}f64', f'{-1.79769313486231570814527423731704356798070567525844996598917476803157260780*(10**308)}f64']:
+            input_sql, stb_name = self.genFullTypeSql(c6=c6)
+            self.resCmp(input_sql, stb_name)
+        # * limit set to 1.797693134862316*(10**308)
+        for c6 in [f'{-1.797693134862316*(10**308)}f64', f'{-1.797693134862316*(10**308)}f64']:
+            input_sql = self.genFullTypeSql(c6=c6)[0]
+            code = self._conn.insertLines([input_sql])
+            tdSql.checkNotEqual(code, 0)
+
+        # # binary 
+        stb_name = self.getLongName(7, "letters")
+        input_sql = f'{stb_name},t0=t c0=f,c1="{self.getLongName(16374, "letters")}" 1626006833639000000ns'
+        code = self._conn.insertLines([input_sql])
+        tdSql.checkEqual(code, 0)
+        input_sql = f'{stb_name},t0=t c0=f,c1="{self.getLongName(16375, "letters")}" 1626006833639000000ns'
+        code = self._conn.insertLines([input_sql])
+        tdSql.checkNotEqual(code, 0)
+
+        # nchar
+        # * legal nchar could not be larger than 16374/4
+        stb_name = self.getLongName(7, "letters")
+        input_sql = f'{stb_name},t0=t c0=f,c1=L"{self.getLongName(4093, "letters")}" 1626006833639000000ns'
+        code = self._conn.insertLines([input_sql])
+        tdSql.checkEqual(code, 0)
+        input_sql = f'{stb_name},t0=t c0=f,c1=L"{self.getLongName(4094, "letters")}" 1626006833639000000ns'
+        code = self._conn.insertLines([input_sql])
+        tdSql.checkNotEqual(code, 0)
+
+    def tagColIllegalValueCheckCase(self):
+
+        """
+            test illegal tag col value
+        """
+        self.cleanStb()
+        # bool
+        for i in ["TrUe", "tRue", "trUe", "truE", "FalsE", "fAlse", "faLse", "falSe", "falsE"]:
+            input_sql1 = self.genFullTypeSql(t0=i)[0]
+            code = self._conn.insertLines([input_sql1])
+            tdSql.checkNotEqual(code, 0)
+            input_sql2 = self.genFullTypeSql(c0=i)[0]
+            code = self._conn.insertLines([input_sql2])
+            tdSql.checkNotEqual(code, 0)
+
+        # i8 i16 i32 i64 f32 f64
+        for input_sql in [
+                self.genFullTypeSql(t1="1s2i8")[0], 
+                self.genFullTypeSql(t2="1s2i16")[0],
+                self.genFullTypeSql(t3="1s2i32")[0],
+                self.genFullTypeSql(t4="1s2i64")[0],
+                self.genFullTypeSql(t5="11.1s45f32")[0],
+                self.genFullTypeSql(t6="11.1s45f64")[0], 
+                self.genFullTypeSql(c1="1s2i8")[0], 
+                self.genFullTypeSql(c2="1s2i16")[0],
+                self.genFullTypeSql(c3="1s2i32")[0],
+                self.genFullTypeSql(c4="1s2i64")[0],
+                self.genFullTypeSql(c5="11.1s45f32")[0],
+                self.genFullTypeSql(c6="11.1s45f64")[0],
+                self.genFullTypeSql(c9="1s1u64")[0]
+            ]:
+            code = self._conn.insertLines([input_sql])
+            tdSql.checkNotEqual(code, 0)
+
+        # check binary and nchar blank
+        stb_name = self.getLongName(7, "letters")
+        input_sql1 = f'{stb_name},t0=t c0=f,c1="abc aaa" 1626006833639000000ns'
+        input_sql2 = f'{stb_name},t0=t c0=f,c1=L"abc aaa" 1626006833639000000ns'
+        input_sql3 = f'{stb_name},t0=t,t1="abc aaa" c0=f 1626006833639000000ns'
+        input_sql4 = f'{stb_name},t0=t,t1=L"abc aaa" c0=f 1626006833639000000ns'
+        for input_sql in [input_sql1, input_sql2, input_sql3, input_sql4]:
+            code = self._conn.insertLines([input_sql])
+            tdSql.checkNotEqual(code, 0)
+
+        # check accepted binary and nchar symbols 
+        # # * ~!@#$¥%^&*()-+={}|[]、「」:;
+        for symbol in list('~!@#$¥%^&*()-+={}|[]、「」:;'):
+            input_sql1 = f'{stb_name},t0=t c0=f,c1="abc{symbol}aaa" 1626006833639000000ns'
+            input_sql2 = f'{stb_name},t0=t,t1="abc{symbol}aaa" c0=f 1626006833639000000ns'
+            code = self._conn.insertLines([input_sql1])
+            tdSql.checkEqual(code, 0)
+            code = self._conn.insertLines([input_sql2])
+            tdSql.checkEqual(code, 0)
+        
+
+    def duplicateIdTagColInsertCheckCase(self):
+        """
+            check duplicate Id Tag Col
+        """
+        self.cleanStb()
+        input_sql_id = self.genFullTypeSql(id_double_tag=True)[0]
+        code = self._conn.insertLines([input_sql_id])
+        tdSql.checkNotEqual(code, 0)
+
+        input_sql = self.genFullTypeSql()[0]
+        input_sql_tag = input_sql.replace("t5", "t6")
+        code = self._conn.insertLines([input_sql_tag])
+        tdSql.checkNotEqual(code, 0)
+
+        input_sql = self.genFullTypeSql()[0]
+        input_sql_col = input_sql.replace("c5", "c6")
+        code = self._conn.insertLines([input_sql_col])
+        tdSql.checkNotEqual(code, 0)
+
+        input_sql = self.genFullTypeSql()[0]
+        input_sql_col = input_sql.replace("c5", "C6")
+        code = self._conn.insertLines([input_sql_col])
+        tdSql.checkNotEqual(code, 0)
+
+    ##### stb exist #####
+    def noIdStbExistCheckCase(self):
+        """
+            case no id when stb exist
+        """
+        self.cleanStb()
+        input_sql, stb_name = self.genFullTypeSql(t0="f", c0="f")
+        self.resCmp(input_sql, stb_name)
+        input_sql, stb_name = self.genFullTypeSql(stb_name=stb_name, id_noexist_tag=True, t0="f", c0="f")
+        self.resCmp(input_sql, stb_name, condition='where tbname like "t_%"')
+        tdSql.query(f"select * from {stb_name}")
+        tdSql.checkRows(2)
+        # TODO cover other case
+
+    def duplicateInsertExistCheckCase(self):
+        """
+            check duplicate insert when stb exist
+        """
+        self.cleanStb()
+        input_sql, stb_name = self.genFullTypeSql()
+        self.resCmp(input_sql, stb_name)
+        code = self._conn.insertLines([input_sql])
+        tdSql.checkEqual(code, 0)
+        self.resCmp(input_sql, stb_name)
+
+    def tagColBinaryNcharLengthCheckCase(self):
+        """
+            check length increase
+        """
+        self.cleanStb()
+        input_sql, stb_name = self.genFullTypeSql()
+        self.resCmp(input_sql, stb_name)
+        tb_name = self.getLongName(5, "letters")
+        input_sql, stb_name = self.genFullTypeSql(stb_name=stb_name, tb_name=tb_name,t7="\"binaryTagValuebinaryTagValue\"", t8="L\"ncharTagValuencharTagValue\"", c7="\"binaryTagValuebinaryTagValue\"", c8="L\"ncharTagValuencharTagValue\"")
+        self.resCmp(input_sql, stb_name, condition=f'where tbname like "{tb_name}"')
+
+    def tagColAddDupIDCheckCase(self):
+        """
+            check column and tag count add, stb and tb duplicate
+            * tag: alter table ...
+            * col: when update==0 and ts is same, unchange
+            * so this case tag&&value will be added, 
+            * col is added without value when update==0
+            * col is added with value when update==1
+        """
+        self.cleanStb()
+        tb_name = self.getLongName(7, "letters")
+        for db_update_tag in [0, 1]:
+            if db_update_tag == 1 :
+                self.createDb("test_update", db_update_tag=db_update_tag)
+            input_sql, stb_name = self.genFullTypeSql(tb_name=tb_name, t0="f", c0="f")
+            self.resCmp(input_sql, stb_name)
+            self.genFullTypeSql(stb_name=stb_name, tb_name=tb_name, t0="f", c0="f", ct_add_tag=True)
+            if db_update_tag == 1 :
+                self.resCmp(input_sql, stb_name, condition=f'where tbname like "{tb_name}"')
+            else:
+                self.resCmp(input_sql, stb_name, condition=f'where tbname like "{tb_name}"', none_check_tag=True)
+
+    def tagColAddCheckCase(self):
+        """
+            check column and tag count add
+        """
+        self.cleanStb()
+        tb_name = self.getLongName(7, "letters")
+        input_sql, stb_name = self.genFullTypeSql(tb_name=tb_name, t0="f", c0="f")
+        self.resCmp(input_sql, stb_name)
+        tb_name_1 = self.getLongName(7, "letters")
+        input_sql, stb_name = self.genFullTypeSql(stb_name=stb_name, tb_name=tb_name_1, t0="f", c0="f", ct_add_tag=True)
+        self.resCmp(input_sql, stb_name, condition=f'where tbname like "{tb_name_1}"')
+        res_row_list = self.resHandle(f"select c10,c11,t10,t11 from {tb_name}", True)[0]
+        tdSql.checkEqual(res_row_list[0], ['None', 'None', 'None', 'None'])
+        self.resCmp(input_sql, stb_name, condition=f'where tbname like "{tb_name}"', none_check_tag=True)
+
+    def tagMd5Check(self):
+        """
+            condition: stb not change
+            insert two table, keep tag unchange, change col
+        """
+        self.cleanStb()
+        input_sql, stb_name = self.genFullTypeSql(t0="f", c0="f", id_noexist_tag=True)
+        self.resCmp(input_sql, stb_name)
+        tb_name1 = self.getNoIdTbName(stb_name)
+        input_sql, stb_name = self.genFullTypeSql(stb_name=stb_name, t0="f", c0="f", id_noexist_tag=True)
+        self.resCmp(input_sql, stb_name)
+        tb_name2 = self.getNoIdTbName(stb_name)
+        tdSql.query(f"select * from {stb_name}")
+        tdSql.checkRows(1)
+        tdSql.checkEqual(tb_name1, tb_name2)
+        input_sql, stb_name = self.genFullTypeSql(stb_name=stb_name, t0="f", c0="f", id_noexist_tag=True, ct_add_tag=True)
+        self._conn.insertLines([input_sql])
+        tb_name3 = self.getNoIdTbName(stb_name)
+        tdSql.query(f"select * from {stb_name}")
+        tdSql.checkRows(2)
+        tdSql.checkNotEqual(tb_name1, tb_name3)
+
+    # * tag binary max is 16384, col+ts binary max  49151
+    def tagColBinaryMaxLengthCheckCase(self):
+        """
+            every binary and nchar must be length+2
+        """
+        self.cleanStb()
+        stb_name = self.getLongName(7, "letters")
+        tb_name = f'{stb_name}_1'
+        input_sql = f'{stb_name},id="{tb_name}",t0=t c0=f 1626006833639000000ns'
+        code = self._conn.insertLines([input_sql])
+
+        # * every binary and nchar must be length+2, so here is two tag, max length could not larger than 16384-2*2
+        input_sql = f'{stb_name},t0=t,t1="{self.getLongName(16374, "letters")}",t2="{self.getLongName(5, "letters")}" c0=f 1626006833639000000ns'
+        code = self._conn.insertLines([input_sql])
+        tdSql.checkEqual(code, 0)
+        tdSql.query(f"select * from {stb_name}")
+        tdSql.checkRows(2)
+        input_sql = f'{stb_name},t0=t,t1="{self.getLongName(16374, "letters")}",t2="{self.getLongName(6, "letters")}" c0=f 1626006833639000000ns'
+        code = self._conn.insertLines([input_sql])
+        tdSql.checkNotEqual(code, 0)
+        tdSql.query(f"select * from {stb_name}")
+        tdSql.checkRows(2)
+
+        # # * check col，col+ts max in describe ---> 16143
+        input_sql = f'{stb_name},t0=t c0=f,c1="{self.getLongName(16374, "letters")}",c2="{self.getLongName(16374, "letters")}",c3="{self.getLongName(16374, "letters")}",c4="{self.getLongName(12, "letters")}" 1626006833639000000ns'
+        code = self._conn.insertLines([input_sql])
+        tdSql.checkEqual(code, 0)
+        tdSql.query(f"select * from {stb_name}")
+        tdSql.checkRows(3)
+        input_sql = f'{stb_name},t0=t c0=f,c1="{self.getLongName(16374, "letters")}",c2="{self.getLongName(16374, "letters")}",c3="{self.getLongName(16374, "letters")}",c4="{self.getLongName(13, "letters")}" 1626006833639000000ns'
+        code = self._conn.insertLines([input_sql])
+        tdSql.checkNotEqual(code, 0)
+        tdSql.query(f"select * from {stb_name}")
+        tdSql.checkRows(3)
+    
+    # * tag nchar max is 16374/4, col+ts nchar max  49151
+    def tagColNcharMaxLengthCheckCase(self):
+        """
+            check nchar length limit
+        """
+        self.cleanStb()
+        stb_name = self.getLongName(7, "letters")
+        tb_name = f'{stb_name}_1'
+        input_sql = f'{stb_name},id="{tb_name}",t0=t c0=f 1626006833639000000ns'
+        code = self._conn.insertLines([input_sql])
+
+        # * legal nchar could not be larger than 16374/4
+        input_sql = f'{stb_name},t0=t,t1=L"{self.getLongName(4093, "letters")}",t2=L"{self.getLongName(1, "letters")}" c0=f 1626006833639000000ns'
+        code = self._conn.insertLines([input_sql])
+        tdSql.checkEqual(code, 0)
+        tdSql.query(f"select * from {stb_name}")
+        tdSql.checkRows(2)
+        input_sql = f'{stb_name},t0=t,t1=L"{self.getLongName(4093, "letters")}",t2=L"{self.getLongName(2, "letters")}" c0=f 1626006833639000000ns'
+        code = self._conn.insertLines([input_sql])
+        tdSql.checkNotEqual(code, 0)
+        tdSql.query(f"select * from {stb_name}")
+        tdSql.checkRows(2)
+
+        input_sql = f'{stb_name},t0=t c0=f,c1=L"{self.getLongName(4093, "letters")}",c2=L"{self.getLongName(4093, "letters")}",c3=L"{self.getLongName(4093, "letters")}",c4=L"{self.getLongName(4, "letters")}" 1626006833639000000ns'
+        code = self._conn.insertLines([input_sql])
+        tdSql.checkEqual(code, 0)
+        tdSql.query(f"select * from {stb_name}")
+        tdSql.checkRows(3)
+        input_sql = f'{stb_name},t0=t c0=f,c1=L"{self.getLongName(4093, "letters")}",c2=L"{self.getLongName(4093, "letters")}",c3=L"{self.getLongName(4093, "letters")}",c4=L"{self.getLongName(5, "letters")}" 1626006833639000000ns'
+        code = self._conn.insertLines([input_sql])
+        tdSql.checkNotEqual(code, 0)
+        tdSql.query(f"select * from {stb_name}")
+        tdSql.checkRows(3)
+
+    def batchInsertCheckCase(self):
+        """
+            test batch insert
+        """
+        self.cleanStb()
+        stb_name = self.getLongName(8, "letters")
+        tdSql.execute(f'create stable {stb_name}(ts timestamp, f int) tags(t1 bigint)')
+        lines = ["st123456,t1=3i64,t2=4f64,t3=\"t3\" c1=3i64,c3=L\"passit\",c2=false,c4=4f64 1626006833639000000ns",
+                "st123456,t1=4i64,t3=\"t4\",t2=5f64,t4=5f64 c1=3i64,c3=L\"passitagin\",c2=true,c4=5f64,c5=5f64 1626006833640000000ns",
+                f"{stb_name},t2=5f64,t3=L\"ste\" c1=true,c2=4i64,c3=\"iam\" 1626056811823316532ns",
+                "stf567890,t1=4i64,t3=\"t4\",t2=5f64,t4=5f64 c1=3i64,c3=L\"passitagin\",c2=true,c4=5f64,c5=5f64,c6=7u64 1626006933640000000ns",
+                "st123456,t1=4i64,t2=5f64,t3=\"t4\" c1=3i64,c3=L\"passitagain\",c2=true,c4=5f64 1626006833642000000ns",
+                f"{stb_name},t2=5f64,t3=L\"ste2\" c3=\"iamszhou\",c4=false 1626056811843316532ns",
+                f"{stb_name},t2=5f64,t3=L\"ste2\" c3=\"iamszhou\",c4=false,c5=32i8,c6=64i16,c7=32i32,c8=88.88f32 1626056812843316532ns",
+                "st123456,t1=4i64,t3=\"t4\",t2=5f64,t4=5f64 c1=3i64,c3=L\"passitagin\",c2=true,c4=5f64,c5=5f64,c6=7u64 1626006933640000000ns",
+                "st123456,t1=4i64,t3=\"t4\",t2=5f64,t4=5f64 c1=3i64,c3=L\"passitagin_stf\",c2=false,c5=5f64,c6=7u64 1626006933641000000ns"
+                ]
+        code = self._conn.insertLines(lines)
+        tdSql.checkEqual(code, 0)
+    
+    def multiInsertCheckCase(self, count):
+            """
+                test multi insert
+            """
+            self.cleanStb()
+            sql_list = []
+            stb_name = self.getLongName(8, "letters")
+            tdSql.execute(f'create stable {stb_name}(ts timestamp, f int) tags(t1 bigint)')
+            for i in range(count):
+                input_sql = self.genFullTypeSql(stb_name=stb_name, t7=f'"{self.getLongName(8, "letters")}"', c7=f'"{self.getLongName(8, "letters")}"', id_noexist_tag=True)[0]
+                sql_list.append(input_sql)
+            code = self._conn.insertLines(sql_list)
+            tdSql.checkEqual(code, 0)
+
+    def batchErrorInsertCheckCase(self):
+        """
+            test batch error insert
+        """
+        self.cleanStb()
+        stb_name = self.getLongName(8, "letters")
+        lines = ["st123456,t1=3i64,t2=4f64,t3=\"t3\" c1=3i64,c3=L\"passit\",c2=false,c4=4f64 1626006833639000000ns",
+                f"{stb_name},t2=5f64,t3=L\"ste\" c1=tRue,c2=4i64,c3=\"iam\" 1626056811823316532ns"]
+        code = self._conn.insertLines(lines)
+        tdSql.checkNotEqual(code, 0)
+
+    def genSqlList(self, count=5, stb_name="", tb_name=""):
+        """
+            stb --> supertable
+            tb  --> table
+            ts  --> timestamp, same default
+            col --> column, same default
+            tag --> tag, same default
+            d   --> different
+            s   --> same
+            a   --> add
+            m   --> minus
+        """
+        d_stb_d_tb_list = list()
+        s_stb_s_tb_list = list()
+        s_stb_s_tb_a_col_a_tag_list = list()
+        s_stb_s_tb_m_col_m_tag_list = list()
+        s_stb_d_tb_list = list()
+        s_stb_d_tb_a_col_m_tag_list = list()
+        s_stb_d_tb_a_tag_m_col_list = list()
+        s_stb_s_tb_d_ts_list = list()
+        s_stb_s_tb_d_ts_a_col_m_tag_list = list()
+        s_stb_s_tb_d_ts_a_tag_m_col_list = list()
+        s_stb_d_tb_d_ts_list = list()
+        s_stb_d_tb_d_ts_a_col_m_tag_list = list()
+        s_stb_d_tb_d_ts_a_tag_m_col_list = list()
+        for i in range(count):
+            d_stb_d_tb_list.append(self.genFullTypeSql(t0="f", c0="f"))
+            s_stb_s_tb_list.append(self.genFullTypeSql(stb_name=stb_name, tb_name=tb_name, t7=f'"{self.getLongName(8, "letters")}"', c7=f'"{self.getLongName(8, "letters")}"'))
+            s_stb_s_tb_a_col_a_tag_list.append(self.genFullTypeSql(stb_name=stb_name, tb_name=tb_name, t7=f'"{self.getLongName(8, "letters")}"', c7=f'"{self.getLongName(8, "letters")}"', ct_add_tag=True))
+            s_stb_s_tb_m_col_m_tag_list.append(self.genFullTypeSql(stb_name=stb_name, tb_name=tb_name, t7=f'"{self.getLongName(8, "letters")}"', c7=f'"{self.getLongName(8, "letters")}"', ct_min_tag=True))
+            s_stb_d_tb_list.append(self.genFullTypeSql(stb_name=stb_name, t7=f'"{self.getLongName(8, "letters")}"', c7=f'"{self.getLongName(8, "letters")}"', id_noexist_tag=True))
+            s_stb_d_tb_a_col_m_tag_list.append(self.genFullTypeSql(stb_name=stb_name, t7=f'"{self.getLongName(8, "letters")}"', c7=f'"{self.getLongName(8, "letters")}"', id_noexist_tag=True, ct_am_tag=True))
+            s_stb_d_tb_a_tag_m_col_list.append(self.genFullTypeSql(stb_name=stb_name, t7=f'"{self.getLongName(8, "letters")}"', c7=f'"{self.getLongName(8, "letters")}"', id_noexist_tag=True, ct_ma_tag=True))
+            s_stb_s_tb_d_ts_list.append(self.genFullTypeSql(stb_name=stb_name, tb_name=tb_name, t7=f'"{self.getLongName(8, "letters")}"', c7=f'"{self.getLongName(8, "letters")}"', ts=0))
+            s_stb_s_tb_d_ts_a_col_m_tag_list.append(self.genFullTypeSql(stb_name=stb_name, tb_name=tb_name, t7=f'"{self.getLongName(8, "letters")}"', c7=f'"{self.getLongName(8, "letters")}"', ts=0, ct_am_tag=True))
+            s_stb_s_tb_d_ts_a_tag_m_col_list.append(self.genFullTypeSql(stb_name=stb_name, tb_name=tb_name, t7=f'"{self.getLongName(8, "letters")}"', c7=f'"{self.getLongName(8, "letters")}"', ts=0, ct_ma_tag=True))
+            s_stb_d_tb_d_ts_list.append(self.genFullTypeSql(stb_name=stb_name, t7=f'"{self.getLongName(8, "letters")}"', c7=f'"{self.getLongName(8, "letters")}"', id_noexist_tag=True, ts=0))
+            s_stb_d_tb_d_ts_a_col_m_tag_list.append(self.genFullTypeSql(stb_name=stb_name, t7=f'"{self.getLongName(8, "letters")}"', c7=f'"{self.getLongName(8, "letters")}"', id_noexist_tag=True, ts=0, ct_am_tag=True))
+            s_stb_d_tb_d_ts_a_tag_m_col_list.append(self.genFullTypeSql(stb_name=stb_name, t7=f'"{self.getLongName(8, "letters")}"', c7=f'"{self.getLongName(8, "letters")}"', id_noexist_tag=True, ts=0, ct_ma_tag=True))
+
+        return d_stb_d_tb_list, s_stb_s_tb_list, s_stb_s_tb_a_col_a_tag_list, s_stb_s_tb_m_col_m_tag_list, \
+            s_stb_d_tb_list, s_stb_d_tb_a_col_m_tag_list, s_stb_d_tb_a_tag_m_col_list, s_stb_s_tb_d_ts_list, \
+            s_stb_s_tb_d_ts_a_col_m_tag_list, s_stb_s_tb_d_ts_a_tag_m_col_list, s_stb_d_tb_d_ts_list, \
+            s_stb_d_tb_d_ts_a_col_m_tag_list, s_stb_d_tb_d_ts_a_tag_m_col_list
+
+
+    def genMultiThreadSeq(self, sql_list):
+        tlist = list()
+        for insert_sql in sql_list:
+            t = threading.Thread(target=self._conn.insertLines,args=([insert_sql[0]],))
+            tlist.append(t)
+        return tlist
+
+    def multiThreadRun(self, tlist):
+        for t in tlist:
+            t.start()
+        for t in tlist:
+            t.join()
+
+    def stbInsertMultiThreadCheckCase(self):
+        """
+            thread input different stb
+        """
+        self.cleanStb()
+        input_sql = self.genSqlList()[0]
+        self.multiThreadRun(self.genMultiThreadSeq(input_sql))
+        tdSql.query(f"show tables;")
+        tdSql.checkRows(5)
+    
+    def sStbStbDdataInsertMultiThreadCheckCase(self):
+        """
+            thread input same stb tb, different data, result keep first data
+        """
+        self.cleanStb()
+        tb_name = self.getLongName(7, "letters")
+        input_sql, stb_name = self.genFullTypeSql(tb_name=tb_name)
+        self.resCmp(input_sql, stb_name)
+        s_stb_s_tb_list = self.genSqlList(stb_name=stb_name, tb_name=tb_name)[1]
+        self.multiThreadRun(self.genMultiThreadSeq(s_stb_s_tb_list))
+        tdSql.query(f"show tables;")
+        tdSql.checkRows(1)
+        expected_tb_name = self.getNoIdTbName(stb_name)[0]
+        tdSql.checkEqual(tb_name, expected_tb_name)
+        tdSql.query(f"select * from {stb_name};")
+        tdSql.checkRows(1)
+
+    def sStbStbDdataAtcInsertMultiThreadCheckCase(self):
+        """
+            thread input same stb tb, different data, add columes and tags,  result keep first data
+        """
+        self.cleanStb()
+        tb_name = self.getLongName(7, "letters")
+        input_sql, stb_name = self.genFullTypeSql(tb_name=tb_name)
+        self.resCmp(input_sql, stb_name)
+        s_stb_s_tb_a_col_a_tag_list = self.genSqlList(stb_name=stb_name, tb_name=tb_name)[2]
+        self.multiThreadRun(self.genMultiThreadSeq(s_stb_s_tb_a_col_a_tag_list))
+        tdSql.query(f"show tables;")
+        tdSql.checkRows(1)
+        expected_tb_name = self.getNoIdTbName(stb_name)[0]
+        tdSql.checkEqual(tb_name, expected_tb_name)
+        tdSql.query(f"select * from {stb_name};")
+        tdSql.checkRows(1)
+    
+    def sStbStbDdataMtcInsertMultiThreadCheckCase(self):
+        """
+            thread input same stb tb, different data, minus columes and tags,  result keep first data
+        """
+        self.cleanStb()
+        tb_name = self.getLongName(7, "letters")
+        input_sql, stb_name = self.genFullTypeSql(tb_name=tb_name)
+        self.resCmp(input_sql, stb_name)
+        s_stb_s_tb_m_col_m_tag_list = self.genSqlList(stb_name=stb_name, tb_name=tb_name)[3]
+        self.multiThreadRun(self.genMultiThreadSeq(s_stb_s_tb_m_col_m_tag_list))
+        tdSql.query(f"show tables;")
+        tdSql.checkRows(1)
+        expected_tb_name = self.getNoIdTbName(stb_name)[0]
+        tdSql.checkEqual(tb_name, expected_tb_name)
+        tdSql.query(f"select * from {stb_name};")
+        tdSql.checkRows(1)
+
+    def sStbDtbDdataInsertMultiThreadCheckCase(self):
+        """
+            thread input same stb, different tb, different data
+        """
+        self.cleanStb()
+        input_sql, stb_name = self.genFullTypeSql()
+        self.resCmp(input_sql, stb_name)
+        s_stb_d_tb_list = self.genSqlList(stb_name=stb_name)[4]
+        self.multiThreadRun(self.genMultiThreadSeq(s_stb_d_tb_list))
+        tdSql.query(f"show tables;")
+        tdSql.checkRows(6)
+
+    def sStbDtbDdataAcMtInsertMultiThreadCheckCase(self):
+        """
+            #! concurrency conflict
+        """
+        """
+            thread input same stb, different tb, different data, add col, mul tag
+        """
+        self.cleanStb()
+        input_sql, stb_name = self.genFullTypeSql()
+        self.resCmp(input_sql, stb_name)
+        s_stb_d_tb_a_col_m_tag_list = self.genSqlList(stb_name=stb_name)[5]
+        self.multiThreadRun(self.genMultiThreadSeq(s_stb_d_tb_a_col_m_tag_list))
+        tdSql.query(f"show tables;")
+        tdSql.checkRows(6)
+
+    def sStbDtbDdataAtMcInsertMultiThreadCheckCase(self):
+        """
+            #! concurrency conflict
+        """
+        """
+            thread input same stb, different tb, different data, add tag, mul col
+        """
+        self.cleanStb()
+        input_sql, stb_name = self.genFullTypeSql()
+        self.resCmp(input_sql, stb_name)
+        s_stb_d_tb_a_tag_m_col_list = self.genSqlList(stb_name=stb_name)[6]
+        self.multiThreadRun(self.genMultiThreadSeq(s_stb_d_tb_a_tag_m_col_list))
+        tdSql.query(f"show tables;")
+        tdSql.checkRows(6)
+
+    def sStbStbDdataDtsInsertMultiThreadCheckCase(self):
+        """
+            thread input same stb tb, different ts
+        """
+        self.cleanStb()
+        tb_name = self.getLongName(7, "letters")
+        input_sql, stb_name = self.genFullTypeSql(tb_name=tb_name)
+        self.resCmp(input_sql, stb_name)
+        s_stb_s_tb_d_ts_list = self.genSqlList(stb_name=stb_name, tb_name=tb_name)[7]
+        self.multiThreadRun(self.genMultiThreadSeq(s_stb_s_tb_d_ts_list))
+        tdSql.query(f"show tables;")
+        tdSql.checkRows(1)
+        tdSql.query(f"select * from {stb_name}")
+        tdSql.checkRows(6)
+
+    def sStbStbDdataDtsAcMtInsertMultiThreadCheckCase(self):
+        """
+            thread input same stb tb, different ts, add col, mul tag
+        """
+        self.cleanStb()
+        tb_name = self.getLongName(7, "letters")
+        input_sql, stb_name = self.genFullTypeSql(tb_name=tb_name)
+        self.resCmp(input_sql, stb_name)
+        s_stb_s_tb_d_ts_a_col_m_tag_list = self.genSqlList(stb_name=stb_name, tb_name=tb_name)[8]
+        self.multiThreadRun(self.genMultiThreadSeq(s_stb_s_tb_d_ts_a_col_m_tag_list))
+        tdSql.query(f"show tables;")
+        tdSql.checkRows(1)
+        tdSql.query(f"select * from {stb_name}")
+        tdSql.checkRows(6)
+        tdSql.query(f"select * from {stb_name} where t8 is not NULL")
+        tdSql.checkRows(6)
+        tdSql.query(f"select * from {tb_name} where c11 is not NULL;")
+        tdSql.checkRows(5)
+
+    def sStbStbDdataDtsAtMcInsertMultiThreadCheckCase(self):
+        """
+            thread input same stb tb, different ts, add tag, mul col
+        """
+        self.cleanStb()
+        tb_name = self.getLongName(7, "letters")
+        input_sql, stb_name = self.genFullTypeSql(tb_name=tb_name)
+        self.resCmp(input_sql, stb_name)
+        s_stb_s_tb_d_ts_a_tag_m_col_list = self.genSqlList(stb_name=stb_name, tb_name=tb_name)[9]
+        self.multiThreadRun(self.genMultiThreadSeq(s_stb_s_tb_d_ts_a_tag_m_col_list))
+        tdSql.query(f"show tables;")
+        tdSql.checkRows(1)
+        tdSql.query(f"select * from {stb_name}")
+        tdSql.checkRows(6)
+        for c in ["c7", "c8", "c9"]:
+            tdSql.query(f"select * from {stb_name} where {c} is NULL")
+            tdSql.checkRows(5)        
+        for t in ["t10", "t11"]:
+            tdSql.query(f"select * from {stb_name} where {t} is not NULL;")
+            tdSql.checkRows(6)
+
+    def sStbDtbDdataDtsInsertMultiThreadCheckCase(self):
+        """
+            thread input same stb, different tb, data, ts
+        """
+        self.cleanStb()
+        input_sql, stb_name = self.genFullTypeSql()
+        self.resCmp(input_sql, stb_name)
+        s_stb_d_tb_d_ts_list = self.genSqlList(stb_name=stb_name)[10]
+        self.multiThreadRun(self.genMultiThreadSeq(s_stb_d_tb_d_ts_list))
+        tdSql.query(f"show tables;")
+        tdSql.checkRows(6)
+
+    def sStbDtbDdataDtsAcMtInsertMultiThreadCheckCase(self):
+        """
+            # ! concurrency conflict
+        """
+        """
+            thread input same stb, different tb, data, ts, add col, mul tag
+        """
+        self.cleanStb()
+        input_sql, stb_name = self.genFullTypeSql()
+        self.resCmp(input_sql, stb_name)
+        s_stb_d_tb_d_ts_a_col_m_tag_list = self.genSqlList(stb_name=stb_name)[11]
+        self.multiThreadRun(self.genMultiThreadSeq(s_stb_d_tb_d_ts_a_col_m_tag_list))
+        tdSql.query(f"show tables;")
+        tdSql.checkRows(6)
+
+    def test(self):
+        input_sql1 = "rfasta,id=\"rfasta_1\",t0=true,t1=127i8,t2=32767i16,t3=2147483647i32,t4=9223372036854775807i64,t5=11.12345f32,t6=22.123456789f64,t7=\"ddzhiksj\",t8=L\"ncharTagValue\" c0=True,c1=127i8,c2=32767i16,c3=2147483647i32,c4=9223372036854775807i64,c5=11.12345f32,c6=22.123456789f64,c7=\"bnhwlgvj\",c8=L\"ncharTagValue\",c9=7u64 1626006933640000000ns"
+        input_sql2 = "rfasta,id=\"rfasta_1\",t0=true,t1=127i8,t2=32767i16,t3=2147483647i32,t4=9223372036854775807i64,t5=11.12345f32,t6=22.123456789f64 c0=True,c1=127i8,c2=32767i16,c3=2147483647i32,c4=9223372036854775807i64,c5=11.12345f32,c6=22.123456789f64 1626006933640000000ns"
+        code = self._conn.insertLines([input_sql1])
+        code = self._conn.insertLines([input_sql2])
+        print(code)
+        # self._conn.insertLines([input_sql2])
+        # input_sql3 = f'abcd,id="cc¥Ec",t0=True,t1=127i8,t2=32767i16,t3=2147483647i32,t4=9223372036854775807i64,t5=11.12345f32,t6=22.123456789f64,t7="ndsfdrum",t8=L"ncharTagValue" c0=f,c1=127i8,c2=32767i16,c3=2147483647i32,c4=9223372036854775807i64,c5=11.12345f32,c6=22.123456789f64,c7="igwoehkm",c8=L"ncharColValue",c9=7u64 0'
+        # print(input_sql3)
+        # input_sql4 = 'hmemeb,id="kilrcrldgf",t0=F,t1=127i8,t2=32767i16,t3=2147483647i32,t4=9223372036854775807i64,t5=11.12345f32,t6=22.123456789f64,t7="fysodjql",t8=L"ncharTagValue" c0=True,c1=127i8,c2=32767i16,c3=2147483647i32,c4=9223372036854775807i64,c5=11.12345f32,c6=22.123456789f64,c7="waszbfvc",c8=L"ncharColValue",c9=7u64 0'
+        # code = self._conn.insertLines([input_sql3])
+        # print(code)
+        # self._conn.insertLines([input_sql4])
+
+    def runAll(self):
+        self.initCheckCase()
+        self.boolTypeCheckCase()
+        self.symbolsCheckCase()
+        self.tsCheckCase()
+        self.idSeqCheckCase()
+        self.idUpperCheckCase()
+        self.noIdCheckCase()
+        self.maxColTagCheckCase()
+        self.idIllegalNameCheckCase()
+        self.idStartWithNumCheckCase()
+        self.nowTsCheckCase()
+        self.dateFormatTsCheckCase()
+        self.illegalTsCheckCase()
+        self.tagValueLengthCheckCase()
+        self.colValueLengthCheckCase()
+        self.tagColIllegalValueCheckCase()
+        self.duplicateIdTagColInsertCheckCase()
+        self.noIdStbExistCheckCase()
+        self.duplicateInsertExistCheckCase()
+        self.tagColBinaryNcharLengthCheckCase()
+        self.tagColAddDupIDCheckCase()
+        self.tagColAddCheckCase()
+        self.tagMd5Check()
+        self.tagColBinaryMaxLengthCheckCase()
+        # self.tagColNcharMaxLengthCheckCase()
+        self.batchInsertCheckCase()
+        self.multiInsertCheckCase(1000)
+        self.batchErrorInsertCheckCase()
+        # MultiThreads
+        self.stbInsertMultiThreadCheckCase()
+        self.sStbStbDdataInsertMultiThreadCheckCase()
+        self.sStbStbDdataAtcInsertMultiThreadCheckCase()
+        self.sStbStbDdataMtcInsertMultiThreadCheckCase()
+        self.sStbDtbDdataInsertMultiThreadCheckCase()
+
+        # # ! concurrency conflict
+        # self.sStbDtbDdataAcMtInsertMultiThreadCheckCase()
+        # self.sStbDtbDdataAtMcInsertMultiThreadCheckCase()
+
+        self.sStbStbDdataDtsInsertMultiThreadCheckCase()
+
+        # # ! concurrency conflict
+        # self.sStbStbDdataDtsAcMtInsertMultiThreadCheckCase()
+        # self.sStbStbDdataDtsAtMcInsertMultiThreadCheckCase()
+
+        self.sStbDtbDdataDtsInsertMultiThreadCheckCase()
+
+        # ! concurrency conflict
+        # self.sStbDtbDdataDtsAcMtInsertMultiThreadCheckCase()
+
+
+
+    def run(self):
+        print("running {}".format(__file__))
+        self.createDb()
+        self.runAll()
+        # self.tagColIllegalValueCheckCase()
+        # self.test()
+
+    def stop(self):
+        tdSql.close()
+        tdLog.success("%s successfully executed" % __file__)
+
+tdCases.addWindows(__file__, TDTestCase())
+tdCases.addLinux(__file__, TDTestCase())
diff --git a/tests/pytest/util/sql.py b/tests/pytest/util/sql.py
index 4a0455220637d0b2b99430008a62727a6ee70e30..b42af27d063aa9c8b08ac58374878a7153912142 100644
--- a/tests/pytest/util/sql.py
+++ b/tests/pytest/util/sql.py
@@ -65,7 +65,7 @@ class TDSql:
             self.queryResult = None
             tdLog.info("sql:%s, expect error occured" % (sql))
 
-    def query(self, sql):
+    def query(self, sql, row_tag=None):
         self.sql = sql
         try:
             self.cursor.execute(sql)
@@ -77,21 +77,27 @@ class TDSql:
             args = (caller.filename, caller.lineno, sql, repr(e))
             tdLog.notice("%s(%d) failed: sql:%s, %s" % args)
             raise Exception(repr(e))
+        if row_tag:
+            return self.queryResult
         return self.queryRows
 
-    def getColNameList(self, sql):
+    def getColNameList(self, sql, col_tag=None):
         self.sql = sql
         try:
             col_name_list = []
+            col_type_list = []
             self.cursor.execute(sql)
             self.queryCols = self.cursor.description
             for query_col in self.queryCols:
                 col_name_list.append(query_col[0])
+                col_type_list.append(query_col[1])
         except Exception as e:
             caller = inspect.getframeinfo(inspect.stack()[1][0])
             args = (caller.filename, caller.lineno, sql, repr(e))
             tdLog.notice("%s(%d) failed: sql:%s, %s" % args)
             raise Exception(repr(e))
+        if col_tag:
+            return col_name_list, col_type_list
         return col_name_list
 
     def waitedQuery(self, sql, expectRows, timeout):
@@ -245,6 +251,22 @@ class TDSql:
             args = (caller.filename, caller.lineno, self.sql, col_name_list, expect_col_name_list)
             tdLog.exit("%s(%d) failed: sql:%s, col_name_list:%s != expect_col_name_list:%s" % args)
 
+    def checkEqual(self, elm, expect_elm):
+        if elm == expect_elm:
+            tdLog.info("sql:%s, elm:%s == expect_elm:%s" % (self.sql, elm, expect_elm))
+        else:
+            caller = inspect.getframeinfo(inspect.stack()[1][0])
+            args = (caller.filename, caller.lineno, self.sql, elm, expect_elm)
+            tdLog.exit("%s(%d) failed: sql:%s, elm:%s != expect_elm:%s" % args)
+
+    def checkNotEqual(self, elm, expect_elm):
+        if elm != expect_elm:
+            tdLog.info("sql:%s, elm:%s != expect_elm:%s" % (self.sql, elm, expect_elm))
+        else:
+            caller = inspect.getframeinfo(inspect.stack()[1][0])
+            args = (caller.filename, caller.lineno, self.sql, elm, expect_elm)
+            tdLog.exit("%s(%d) failed: sql:%s, elm:%s == expect_elm:%s" % args)
+
     def taosdStatus(self, state):
         tdLog.sleep(5)
         pstate = 0
diff --git a/tests/script/general/field/2.sim b/tests/script/general/field/2.sim
index dc39e5ad602276e52bda3cce0e823a3deb3f124d..cc6889fd75441c9fa4913f8219ebc1b50710b0cb 100644
--- a/tests/script/general/field/2.sim
+++ b/tests/script/general/field/2.sim
@@ -30,7 +30,7 @@ while $i < 5
   $x = 0
   while $x < $rowNum
     $ms = $x . m 
-    sql insert into $tb values (now + $ms , 0, 0 ) 
+    sql insert into $tb values (1626739200000 + $ms , 0, 0 ) 
     $x = $x + 1
   endw  
   $i = $i + 1
@@ -41,7 +41,7 @@ while $i < 10
   $x = 0
   while $x < $rowNum
     $ms = $x . m 
-    sql insert into $tb values (now + $ms , 1, 1 ) 
+    sql insert into $tb values (1626739200000 + $ms , 1, 1 ) 
     $x = $x + 1
   endw  
   $i = $i + 1
@@ -116,103 +116,104 @@ if $rows != 100 then
 endi
 
 print =============== step4
-sql select * from $mt where ts > now + 4m and tbcol = 1
+# sql select * from $mt where ts > 1626739440001 and tbcol = 1
+sql select * from $mt where ts > 1626739440001 and tbcol = 1
 if $rows != 75 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and tbcol <> 1
+sql select * from $mt where ts > 1626739440001 and tbcol <> 1
 if $rows != 75 then 
   return -1
 endi
-sql select * from $mt where ts < now + 4m and tbcol = 0
+sql select * from $mt where ts < 1626739440001 and tbcol = 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts < now + 4m and tbcol <> 0
+sql select * from $mt where ts < 1626739440001 and tbcol <> 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts <= now + 4m and tbcol = 0
+sql select * from $mt where ts <= 1626739440001 and tbcol = 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts <= now + 4m and tbcol <> 0
+sql select * from $mt where ts <= 1626739440001 and tbcol <> 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and ts < now + 5m and tbcol <> 0
+sql select * from $mt where ts >= 1626739440001 and ts < 1626739500001 and tbcol <> 0
 if $rows != 5 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and tbcol <> 0 and ts < now + 5m
+sql select * from $mt where ts >= 1626739440001 and tbcol <> 0 and ts < 1626739500001
 if $rows != 5 then 
   return -1
 endi
 
 print =============== step5
-sql select * from $mt where ts > now + 4m and tbcol2 = 1
+sql select * from $mt where ts > 1626739440001 and tbcol2 = 1
 if $rows != 75 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and tbcol2 <> 1
+sql select * from $mt where ts > 1626739440001 and tbcol2 <> 1
 if $rows != 75 then 
   return -1
 endi
-sql select * from $mt where ts < now + 4m and tbcol2 = 0
+sql select * from $mt where ts <= 1626739440001 and tbcol2 = 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts < now + 4m and tbcol2 <> 0
+sql select * from $mt where ts <= 1626739440001 and tbcol2 <> 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts <= now + 4m and tbcol2 = 0
+sql select * from $mt where ts <= 1626739440001 and tbcol2 = 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts <= now + 4m and tbcol2 <> 0
+sql select * from $mt where ts <= 1626739440001 and tbcol2 <> 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and ts < now + 5m and tbcol2 <> 0
+sql select * from $mt where ts >= 1626739440001 and ts < 1626739500001 and tbcol2 <> 0
 if $rows != 5 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and tbcol2 <> 0 and ts < now + 5m
+sql select * from $mt where ts >= 1626739440001 and tbcol2 <> 0 and ts < 1626739500001
 if $rows != 5 then 
   return -1
 endi
 
 print =============== step6
-sql select * from $mt where ts > now + 4m and tbcol2 = 1 and tbcol = 1
+sql select * from $mt where ts > 1626739440001 and tbcol2 = 1 and tbcol = 1
 if $rows != 75 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and tbcol2 <> 1 and tbcol <> 1
+sql select * from $mt where ts > 1626739440001 and tbcol2 <> 1 and tbcol <> 1
 if $rows != 75 then 
   return -1
 endi
-sql select * from $mt where ts < now + 4m and tbcol2 = 0 and tbcol = 0
+sql select * from $mt where ts <= 1626739440001 and tbcol2 = 0 and tbcol = 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts < now + 4m and tbcol2 <> 0 and tbcol <> 0
+sql select * from $mt where ts <= 1626739440001 and tbcol2 <> 0 and tbcol <> 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts <= now + 4m and tbcol2 = 0 and tbcol = 0
+sql select * from $mt where ts <= 1626739440001 and tbcol2 = 0 and tbcol = 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts <= now + 4m and tbcol2 <> 0 and tbcol <> 0
+sql select * from $mt where ts <= 1626739440001 and tbcol2 <> 0 and tbcol <> 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and ts < now + 5m and tbcol2 <> 0 and tbcol <> 0
+sql select * from $mt where ts >= 1626739440001 and ts < 1626739500001 and tbcol2 <> 0 and tbcol <> 0
 if $rows != 5 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and tbcol2 <> 0 and ts < now + 5m and ts < now + 5m and tbcol <> 0
+sql select * from $mt where ts >= 1626739440001 and tbcol2 <> 0 and ts < 1626739500001 and ts < 1626739500001 and tbcol <> 0
 if $rows != 5 then 
   return -1
 endi
@@ -246,7 +247,7 @@ if $data00 != 100 then
 endi
 
 print =============== step9
-sql select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from $mt where ts < now + 4m
+sql select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from $mt where ts <= 1626739440001
 print $data00 $data01 $data02 $data03 $data04 $data05 $data06 
 if $data00 != 50 then 
   return -1
@@ -272,7 +273,7 @@ if $data00 != 100 then
 endi
 
 print =============== step11
-sql select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from $mt where ts < now + 4m and tbcol = 1 group by tgcol
+sql select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from $mt where ts <= 1626739440001 and tbcol = 1 group by tgcol
 print $data00 $data01 $data02 $data03 $data04 $data05 $data06 
 if $data00 != 25 then 
   return -1
diff --git a/tests/script/general/field/3.sim b/tests/script/general/field/3.sim
index b45e3a005b4af41494ef24cf93b130d2b41c8dc1..cb3c6621ac3723b09fba489d894657a457e12af1 100644
--- a/tests/script/general/field/3.sim
+++ b/tests/script/general/field/3.sim
@@ -30,7 +30,7 @@ while $i < 5
   $x = 0
   while $x < $rowNum
     $ms = $x . m 
-    sql insert into $tb values (now + $ms , 0, 0, 0 ) 
+    sql insert into $tb values (1626739200000 + $ms , 0, 0, 0 ) 
     $x = $x + 1
   endw  
   $i = $i + 1
@@ -41,7 +41,7 @@ while $i < 10
   $x = 0
   while $x < $rowNum
     $ms = $x . m 
-    sql insert into $tb values (now + $ms , 1, 1, 1 ) 
+    sql insert into $tb values (1626739200000 + $ms , 1, 1, 1 ) 
     $x = $x + 1
   endw  
   $i = $i + 1
@@ -53,19 +53,19 @@ if $rows != $totalNum then
   return -1
 endi
 
-sql select * from $mt where ts < now + 4m
+sql select * from $mt where ts <= 1626739440001
 if $rows != 50 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m
+sql select * from $mt where ts > 1626739440001
 if $rows != 150 then 
   return -1
 endi
-sql select * from $mt where ts = now + 4m
+sql select * from $mt where ts = 1626739440001
 if $rows != 0 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and ts < now + 5m
+sql select * from $mt where ts >= 1626739440001 and ts < 1626739500001
 if $rows != 10 then 
   return -1
 endi
@@ -141,239 +141,239 @@ if $rows != 100 then
 endi
 
 print =============== step6
-sql select * from $mt where ts > now + 4m and tbcol1 = 1
+sql select * from $mt where ts > 1626739440001 and tbcol1 = 1
 if $rows != 75 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and tbcol1 <> 1
+sql select * from $mt where ts > 1626739440001 and tbcol1 <> 1
 if $rows != 75 then 
   return -1
 endi
-sql select * from $mt where ts < now + 4m and tbcol1 = 0
+sql select * from $mt where ts <= 1626739440001 and tbcol1 = 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts < now + 4m and tbcol1 <> 0
+sql select * from $mt where ts <= 1626739440001 and tbcol1 <> 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts <= now + 4m and tbcol1 = 0
+sql select * from $mt where ts <= 1626739440001 and tbcol1 = 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts <= now + 4m and tbcol1 <> 0
+sql select * from $mt where ts <= 1626739440001 and tbcol1 <> 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and ts < now + 5m and tbcol1 <> 0
+sql select * from $mt where ts >= 1626739440001 and ts < 1626739500001 and tbcol1 <> 0
 if $rows != 5 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and tbcol1 <> 0 and ts < now + 5m
+sql select * from $mt where ts >= 1626739440001 and tbcol1 <> 0 and ts < 1626739500001
 if $rows != 5 then 
   return -1
 endi
 
 print =============== step7
-sql select * from $mt where ts > now + 4m and tbcol2 = 1
+sql select * from $mt where ts > 1626739440001 and tbcol2 = 1
 if $rows != 75 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and tbcol2 <> 1
+sql select * from $mt where ts > 1626739440001 and tbcol2 <> 1
 if $rows != 75 then 
   return -1
 endi
-sql select * from $mt where ts < now + 4m and tbcol2 = 0
+sql select * from $mt where ts <= 1626739440001 and tbcol2 = 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts < now + 4m and tbcol2 <> 0
+sql select * from $mt where ts <= 1626739440001 and tbcol2 <> 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts <= now + 4m and tbcol2 = 0
+sql select * from $mt where ts <= 1626739440001 and tbcol2 = 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts <= now + 4m and tbcol2 <> 0
+sql select * from $mt where ts <= 1626739440001 and tbcol2 <> 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and ts < now + 5m and tbcol2 <> 0
+sql select * from $mt where ts >= 1626739440001 and ts < 1626739500001 and tbcol2 <> 0
 if $rows != 5 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and tbcol2 <> 0 and ts < now + 5m
+sql select * from $mt where ts >= 1626739440001 and tbcol2 <> 0 and ts < 1626739500001
 if $rows != 5 then 
   return -1
 endi
 
 print =============== step8
-sql select * from $mt where ts > now + 4m and tbcol3 = 1
+sql select * from $mt where ts > 1626739440001 and tbcol3 = 1
 if $rows != 75 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and tbcol3 <> 1
+sql select * from $mt where ts > 1626739440001 and tbcol3 <> 1
 if $rows != 75 then 
   return -1
 endi
-sql select * from $mt where ts < now + 4m and tbcol3 = 0
+sql select * from $mt where ts < 1626739440001 and tbcol3 = 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts < now + 4m and tbcol3 <> 0
+sql select * from $mt where ts < 1626739440001 and tbcol3 <> 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts <= now + 4m and tbcol3 = 0
+sql select * from $mt where ts <= 1626739440001 and tbcol3 = 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts <= now + 4m and tbcol3 <> 0
+sql select * from $mt where ts <= 1626739440001 and tbcol3 <> 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and ts < now + 5m and tbcol3 <> 0
+sql select * from $mt where ts >= 1626739440001 and ts < 1626739500001 and tbcol3 <> 0
 if $rows != 5 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and tbcol3 <> 0 and ts < now + 5m
+sql select * from $mt where ts >= 1626739440001 and tbcol3 <> 0 and ts < 1626739500001
 if $rows != 5 then 
   return -1
 endi
 
 print =============== step9
-sql select * from $mt where ts > now + 4m and tbcol2 = 1 and tbcol1 = 1
+sql select * from $mt where ts > 1626739440001 and tbcol2 = 1 and tbcol1 = 1
 if $rows != 75 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and tbcol2 <> 1 and tbcol1 <> 1
+sql select * from $mt where ts > 1626739440001 and tbcol2 <> 1 and tbcol1 <> 1
 if $rows != 75 then 
   return -1
 endi
-sql select * from $mt where ts < now + 4m and tbcol2 = 0 and tbcol1 = 0
+sql select * from $mt where ts < 1626739440001 and tbcol2 = 0 and tbcol1 = 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts < now + 4m and tbcol2 <> 0 and tbcol1 <> 0
+sql select * from $mt where ts < 1626739440001 and tbcol2 <> 0 and tbcol1 <> 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts <= now + 4m and tbcol2 = 0 and tbcol1 = 0
+sql select * from $mt where ts <= 1626739440001 and tbcol2 = 0 and tbcol1 = 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts <= now + 4m and tbcol2 <> 0 and tbcol1 <> 0
+sql select * from $mt where ts <= 1626739440001 and tbcol2 <> 0 and tbcol1 <> 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and ts < now + 5m and tbcol2 <> 0 and tbcol1 <> 0
+sql select * from $mt where ts > 1626739440001 and ts < 1626739500001 and tbcol2 <> 0 and tbcol1 <> 0
 if $rows != 5 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and tbcol2 <> 0 and ts < now + 5m and ts < now + 5m and tbcol1 <> 0
+sql select * from $mt where ts > 1626739440001 and tbcol2 <> 0 and ts < 1626739500001 and ts < 1626739500001 and tbcol1 <> 0
 if $rows != 5 then 
   return -1
 endi
 
 print =============== step10
-sql select * from $mt where ts > now + 4m and tbcol3 = 1 and tbcol1 = 1
+sql select * from $mt where ts > 1626739440001 and tbcol3 = 1 and tbcol1 = 1
 if $rows != 75 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and tbcol3 <> 1 and tbcol1 <> 1
+sql select * from $mt where ts > 1626739440001 and tbcol3 <> 1 and tbcol1 <> 1
 if $rows != 75 then 
   return -1
 endi
-sql select * from $mt where ts < now + 4m and tbcol3 = 0 and tbcol1 = 0
+sql select * from $mt where ts < 1626739440001 and tbcol3 = 0 and tbcol1 = 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts < now + 4m and tbcol3 <> 0 and tbcol1 <> 0
+sql select * from $mt where ts < 1626739440001 and tbcol3 <> 0 and tbcol1 <> 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts <= now + 4m and tbcol3 = 0 and tbcol1 = 0
+sql select * from $mt where ts <= 1626739440001 and tbcol3 = 0 and tbcol1 = 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts <= now + 4m and tbcol3 <> 0 and tbcol1 <> 0
+sql select * from $mt where ts <= 1626739440001 and tbcol3 <> 0 and tbcol1 <> 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and ts < now + 5m and tbcol3 <> 0 and tbcol1 <> 0
+sql select * from $mt where ts > 1626739440001 and ts < 1626739500001 and tbcol3 <> 0 and tbcol1 <> 0
 if $rows != 5 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and tbcol3 <> 0 and ts < now + 5m and ts < now + 5m and tbcol1 <> 0
+sql select * from $mt where ts > 1626739440001 and tbcol3 <> 0 and ts < 1626739500001 and ts < 1626739500001 and tbcol1 <> 0
 if $rows != 5 then 
   return -1
 endi
 
 print =============== step11
-sql select * from $mt where ts > now + 4m and tbcol3 = 1 and tbcol2 = 1
+sql select * from $mt where ts > 1626739440001 and tbcol3 = 1 and tbcol2 = 1
 if $rows != 75 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and tbcol3 <> 1 and tbcol2 <> 1
+sql select * from $mt where ts > 1626739440001 and tbcol3 <> 1 and tbcol2 <> 1
 if $rows != 75 then 
   return -1
 endi
-sql select * from $mt where ts < now + 4m and tbcol3 = 0 and tbcol2 = 0
+sql select * from $mt where ts < 1626739440001 and tbcol3 = 0 and tbcol2 = 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts < now + 4m and tbcol3 <> 0 and tbcol2 <> 0
+sql select * from $mt where ts < 1626739440001 and tbcol3 <> 0 and tbcol2 <> 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts <= now + 4m and tbcol3 = 0 and tbcol2 = 0
+sql select * from $mt where ts <= 1626739440001 and tbcol3 = 0 and tbcol2 = 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts <= now + 4m and tbcol3 <> 0 and tbcol2 <> 0
+sql select * from $mt where ts <= 1626739440001 and tbcol3 <> 0 and tbcol2 <> 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and ts < now + 5m and tbcol3 <> 0 and tbcol2 <> 0
+sql select * from $mt where ts >= 1626739440001 and ts < 1626739500001 and tbcol3 <> 0 and tbcol2 <> 0
 if $rows != 5 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and tbcol3 <> 0 and ts < now + 5m and ts < now + 5m and tbcol2 <> 0
+sql select * from $mt where ts >= 1626739440001 and tbcol3 <> 0 and ts < 1626739500001 and ts < 1626739500001 and tbcol2 <> 0
 if $rows != 5 then 
   return -1
 endi
 
 print =============== step12
-sql select * from $mt where ts > now + 4m and tbcol1 = 1 and tbcol2 = 1 and tbcol3 = 1
+sql select * from $mt where ts > 1626739440001 and tbcol1 = 1 and tbcol2 = 1 and tbcol3 = 1
 if $rows != 75 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and tbcol1 <> 1 and tbcol2 <> 1  and tbcol3 <> 1
+sql select * from $mt where ts > 1626739440001 and tbcol1 <> 1 and tbcol2 <> 1  and tbcol3 <> 1
 if $rows != 75 then 
   return -1
 endi
-sql select * from $mt where ts < now + 4m and tbcol1 = 0 and tbcol2 = 0 and tbcol3 = 0
+sql select * from $mt where ts < 1626739440001 and tbcol1 = 0 and tbcol2 = 0 and tbcol3 = 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts < now + 4m and tbcol1 <> 0 and tbcol2 <> 0 and tbcol3 <> 0
+sql select * from $mt where ts < 1626739440001 and tbcol1 <> 0 and tbcol2 <> 0 and tbcol3 <> 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts <= now + 4m and tbcol1 = 0 and tbcol2 = 0 and tbcol3 = 0
+sql select * from $mt where ts <= 1626739440001 and tbcol1 = 0 and tbcol2 = 0 and tbcol3 = 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts <= now + 4m and tbcol1 <> 0 and tbcol2 <> 0 and tbcol3 <> 0
+sql select * from $mt where ts <= 1626739440001 and tbcol1 <> 0 and tbcol2 <> 0 and tbcol3 <> 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and ts < now + 5m and tbcol1 <> 0 and tbcol2 <> 0  and tbcol3 <> 0
+sql select * from $mt where ts >= 1626739440001 and ts < 1626739500001 and tbcol1 <> 0 and tbcol2 <> 0  and tbcol3 <> 0
 if $rows != 5 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and tbcol1 <> 0 and ts < now + 5m and ts < now + 5m and tbcol2 <> 0  and tbcol3 <> 0
+sql select * from $mt where ts >= 1626739440001 and tbcol1 <> 0 and ts < 1626739500001 and ts < 1626739500001 and tbcol2 <> 0  and tbcol3 <> 0
 if $rows != 5 then 
   return -1
 endi
@@ -405,25 +405,25 @@ if $data00 != 100 then
 endi
 
 print =============== step15
-sql select count(tbcol1), avg(tbcol1), sum(tbcol1), min(tbcol1), max(tbcol1), first(tbcol1), last(tbcol1) from $mt where ts < now + 4m
+sql select count(tbcol1), avg(tbcol1), sum(tbcol1), min(tbcol1), max(tbcol1), first(tbcol1), last(tbcol1) from $mt where ts <= 1626739440001
 print $data00 $data01 $data02 $data03 $data04 $data05 $data06 
 if $data00 != 50 then 
   return -1
 endi
 
-sql select count(tbcol1), avg(tbcol1), sum(tbcol1), min(tbcol1), max(tbcol1), first(tbcol1), last(tbcol1) from $mt where ts < now + 4m and tbcol1 = 1
+sql select count(tbcol1), avg(tbcol1), sum(tbcol1), min(tbcol1), max(tbcol1), first(tbcol1), last(tbcol1) from $mt where ts < 1626739440001 and tbcol1 = 1
 print $data00 $data01 $data02 $data03 $data04 $data05 $data06 
 if $data00 != 25 then 
   return -1
 endi
 
-sql select count(tbcol1), avg(tbcol1), sum(tbcol1), min(tbcol1), max(tbcol1), first(tbcol1), last(tbcol1) from $mt where ts < now + 4m and tbcol1 = 1 and tbcol2 = 1 
+sql select count(tbcol1), avg(tbcol1), sum(tbcol1), min(tbcol1), max(tbcol1), first(tbcol1), last(tbcol1) from $mt where ts < 1626739440001 and tbcol1 = 1 and tbcol2 = 1 
 print $data00 $data01 $data02 $data03 $data04 $data05 $data06 
 if $data00 != 25 then 
   return -1
 endi
 
-sql select count(tbcol1), avg(tbcol1), sum(tbcol1), min(tbcol1), max(tbcol1), first(tbcol1), last(tbcol1) from $mt where ts < now + 4m and tbcol1 = 1 and tbcol2 = 1 and tbcol3 = 1
+sql select count(tbcol1), avg(tbcol1), sum(tbcol1), min(tbcol1), max(tbcol1), first(tbcol1), last(tbcol1) from $mt where ts < 1626739440001 and tbcol1 = 1 and tbcol2 = 1 and tbcol3 = 1
 print $data00 $data01 $data02 $data03 $data04 $data05 $data06 
 if $data00 != 25 then 
   return -1
@@ -468,25 +468,25 @@ if $data00 != 100 then
 endi
 
 print =============== step18
-sql select count(tbcol1), avg(tbcol1), sum(tbcol1), min(tbcol1), max(tbcol1), first(tbcol1), last(tbcol1) from $mt where ts < now + 4m group by tgcol2
+sql select count(tbcol1), avg(tbcol1), sum(tbcol1), min(tbcol1), max(tbcol1), first(tbcol1), last(tbcol1) from $mt where ts < 1626739440001 group by tgcol2
 print $data00 $data01 $data02 $data03 $data04 $data05 $data06 
 if $data00 != 25 then 
   return -1
 endi
 
-sql select count(tbcol1), avg(tbcol1), sum(tbcol1), min(tbcol1), max(tbcol1), first(tbcol1), last(tbcol1) from $mt where ts < now + 4m and tbcol1 = 1 group by tgcol2
+sql select count(tbcol1), avg(tbcol1), sum(tbcol1), min(tbcol1), max(tbcol1), first(tbcol1), last(tbcol1) from $mt where ts < 1626739440001 and tbcol1 = 1 group by tgcol2
 print $data00 $data01 $data02 $data03 $data04 $data05 $data06 
 if $data00 != 25 then 
   return -1
 endi
 
-sql select count(tbcol1), avg(tbcol1), sum(tbcol1), min(tbcol1), max(tbcol1), first(tbcol1), last(tbcol1) from $mt where ts < now + 4m and tbcol1 = 1 and tbcol2 = 1  group by tgcol2
+sql select count(tbcol1), avg(tbcol1), sum(tbcol1), min(tbcol1), max(tbcol1), first(tbcol1), last(tbcol1) from $mt where ts < 1626739440001 and tbcol1 = 1 and tbcol2 = 1  group by tgcol2
 print $data00 $data01 $data02 $data03 $data04 $data05 $data06 
 if $data00 != 25 then 
   return -1
 endi
 
-sql select count(tbcol1), avg(tbcol1), sum(tbcol1), min(tbcol1), max(tbcol1), first(tbcol1), last(tbcol1) from $mt where ts < now + 4m and tbcol1 = 1 and tbcol2 = 1 and tbcol3 = 1 group by tgcol2
+sql select count(tbcol1), avg(tbcol1), sum(tbcol1), min(tbcol1), max(tbcol1), first(tbcol1), last(tbcol1) from $mt where ts < 1626739440001 and tbcol1 = 1 and tbcol2 = 1 and tbcol3 = 1 group by tgcol2
 print $data00 $data01 $data02 $data03 $data04 $data05 $data06 
 if $data00 != 25 then 
   return -1
diff --git a/tests/script/general/field/4.sim b/tests/script/general/field/4.sim
index e219be87783cfea2f071db481a1f8eb457f20f5e..2d893da777bea8260a333a957cf6f904b95eb6d0 100644
--- a/tests/script/general/field/4.sim
+++ b/tests/script/general/field/4.sim
@@ -30,7 +30,7 @@ while $i < 5
   $x = 0
   while $x < $rowNum
     $ms = $x . m 
-    sql insert into $tb values (now + $ms , 0, 0, 0, 0 ) 
+    sql insert into $tb values (1626739200000 + $ms , 0, 0, 0, 0 ) 
     $x = $x + 1
   endw  
   $i = $i + 1
@@ -41,7 +41,7 @@ while $i < 10
   $x = 0
   while $x < $rowNum
     $ms = $x . m 
-    sql insert into $tb values (now + $ms , 1, 1, 1, 1 ) 
+    sql insert into $tb values (1626739200000 + $ms , 1, 1, 1, 1 ) 
     $x = $x + 1
   endw  
   $i = $i + 1
@@ -53,19 +53,19 @@ if $rows != $totalNum then
   return -1
 endi
 
-sql select * from $mt where ts < now + 4m
+sql select * from $mt where ts < 1626739440001
 if $rows != 50 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m
+sql select * from $mt where ts > 1626739440001
 if $rows != 150 then 
   return -1
 endi
-sql select * from $mt where ts = now + 4m
+sql select * from $mt where ts = 1626739440001
 if $rows != 0 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and ts < now + 5m
+sql select * from $mt where ts > 1626739440001 and ts < 1626739500001
 if $rows != 10 then 
   return -1
 endi
@@ -159,375 +159,375 @@ if $rows != 100 then
 endi
 
 print =============== step7
-sql select * from $mt where ts > now + 4m and tbcol1 = 1
+sql select * from $mt where ts > 1626739440001 and tbcol1 = 1
 if $rows != 75 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and tbcol1 <> 1
+sql select * from $mt where ts > 1626739440001 and tbcol1 <> 1
 if $rows != 75 then 
   return -1
 endi
-sql select * from $mt where ts < now + 4m and tbcol1 = 0
+sql select * from $mt where ts < 1626739440001 and tbcol1 = 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts < now + 4m and tbcol1 <> 0
+sql select * from $mt where ts < 1626739440001 and tbcol1 <> 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts <= now + 4m and tbcol1 = 0
+sql select * from $mt where ts <= 1626739440001 and tbcol1 = 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts <= now + 4m and tbcol1 <> 0
+sql select * from $mt where ts <= 1626739440001 and tbcol1 <> 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and ts < now + 5m and tbcol1 <> 0
+sql select * from $mt where ts > 1626739440001 and ts < 1626739500001 and tbcol1 <> 0
 if $rows != 5 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and tbcol1 <> 0 and ts < now + 5m
+sql select * from $mt where ts > 1626739440001 and tbcol1 <> 0 and ts < 1626739500001
 if $rows != 5 then 
   return -1
 endi
 
 print =============== step8
-sql select * from $mt where ts > now + 4m and tbcol2 = 1
+sql select * from $mt where ts > 1626739440001 and tbcol2 = 1
 if $rows != 75 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and tbcol2 <> 1
+sql select * from $mt where ts > 1626739440001 and tbcol2 <> 1
 if $rows != 75 then 
   return -1
 endi
-sql select * from $mt where ts < now + 4m and tbcol2 = 0
+sql select * from $mt where ts < 1626739440001 and tbcol2 = 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts < now + 4m and tbcol2 <> 0
+sql select * from $mt where ts < 1626739440001 and tbcol2 <> 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts <= now + 4m and tbcol2 = 0
+sql select * from $mt where ts <= 1626739440001 and tbcol2 = 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts <= now + 4m and tbcol2 <> 0
+sql select * from $mt where ts <= 1626739440001 and tbcol2 <> 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and ts < now + 5m and tbcol2 <> 0
+sql select * from $mt where ts > 1626739440001 and ts < 1626739500001 and tbcol2 <> 0
 if $rows != 5 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and tbcol2 <> 0 and ts < now + 5m
+sql select * from $mt where ts > 1626739440001 and tbcol2 <> 0 and ts < 1626739500001
 if $rows != 5 then 
   return -1
 endi
 
 print =============== step9
-sql select * from $mt where ts > now + 4m and tbcol3 = 1
+sql select * from $mt where ts > 1626739440001 and tbcol3 = 1
 if $rows != 75 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and tbcol3 <> 1
+sql select * from $mt where ts > 1626739440001 and tbcol3 <> 1
 if $rows != 75 then 
   return -1
 endi
-sql select * from $mt where ts < now + 4m and tbcol3 = 0
+sql select * from $mt where ts < 1626739440001 and tbcol3 = 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts < now + 4m and tbcol3 <> 0
+sql select * from $mt where ts < 1626739440001 and tbcol3 <> 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts <= now + 4m and tbcol3 = 0
+sql select * from $mt where ts <= 1626739440001 and tbcol3 = 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts <= now + 4m and tbcol3 <> 0
+sql select * from $mt where ts <= 1626739440001 and tbcol3 <> 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and ts < now + 5m and tbcol3 <> 0
+sql select * from $mt where ts > 1626739440001 and ts < 1626739500001 and tbcol3 <> 0
 if $rows != 5 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and tbcol3 <> 0 and ts < now + 5m
+sql select * from $mt where ts > 1626739440001 and tbcol3 <> 0 and ts < 1626739500001
 if $rows != 5 then 
   return -1
 endi
 
 print =============== step10
-sql select * from $mt where ts > now + 4m and tbcol4 = 1
+sql select * from $mt where ts > 1626739440001 and tbcol4 = 1
 if $rows != 75 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and tbcol4 <> 1
+sql select * from $mt where ts > 1626739440001 and tbcol4 <> 1
 if $rows != 75 then 
   return -1
 endi
-sql select * from $mt where ts < now + 4m and tbcol4 = 0
+sql select * from $mt where ts < 1626739440001 and tbcol4 = 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts < now + 4m and tbcol4 <> 0
+sql select * from $mt where ts < 1626739440001 and tbcol4 <> 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts <= now + 4m and tbcol4 = 0
+sql select * from $mt where ts <= 1626739440001 and tbcol4 = 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts <= now + 4m and tbcol4 <> 0
+sql select * from $mt where ts <= 1626739440001 and tbcol4 <> 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and ts < now + 5m and tbcol4 <> 0
+sql select * from $mt where ts > 1626739440001 and ts < 1626739500001 and tbcol4 <> 0
 if $rows != 5 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and tbcol4 <> 0 and ts < now + 5m
+sql select * from $mt where ts > 1626739440001 and tbcol4 <> 0 and ts < 1626739500001
 if $rows != 5 then 
   return -1
 endi
 
 print =============== step11
-sql select * from $mt where ts > now + 4m and tbcol2 = 1 and tbcol1 = 1
+sql select * from $mt where ts > 1626739440001 and tbcol2 = 1 and tbcol1 = 1
 if $rows != 75 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and tbcol2 <> 1 and tbcol1 <> 1
+sql select * from $mt where ts > 1626739440001 and tbcol2 <> 1 and tbcol1 <> 1
 if $rows != 75 then 
   return -1
 endi
-sql select * from $mt where ts < now + 4m and tbcol2 = 0 and tbcol1 = 0
+sql select * from $mt where ts < 1626739440001 and tbcol2 = 0 and tbcol1 = 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts < now + 4m and tbcol2 <> 0 and tbcol1 <> 0
+sql select * from $mt where ts < 1626739440001 and tbcol2 <> 0 and tbcol1 <> 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts <= now + 4m and tbcol2 = 0 and tbcol1 = 0
+sql select * from $mt where ts <= 1626739440001 and tbcol2 = 0 and tbcol1 = 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts <= now + 4m and tbcol2 <> 0 and tbcol1 <> 0
+sql select * from $mt where ts <= 1626739440001 and tbcol2 <> 0 and tbcol1 <> 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and ts < now + 5m and tbcol2 <> 0 and tbcol1 <> 0
+sql select * from $mt where ts > 1626739440001 and ts < 1626739500001 and tbcol2 <> 0 and tbcol1 <> 0
 if $rows != 5 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and tbcol2 <> 0 and ts < now + 5m and ts < now + 5m and tbcol1 <> 0
+sql select * from $mt where ts > 1626739440001 and tbcol2 <> 0 and ts < 1626739500001 and ts < 1626739500001 and tbcol1 <> 0
 if $rows != 5 then 
   return -1
 endi
 
 print =============== step12
-sql select * from $mt where ts > now + 4m and tbcol3 = 1 and tbcol1 = 1
+sql select * from $mt where ts > 1626739440001 and tbcol3 = 1 and tbcol1 = 1
 if $rows != 75 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and tbcol3 <> 1 and tbcol1 <> 1
+sql select * from $mt where ts > 1626739440001 and tbcol3 <> 1 and tbcol1 <> 1
 if $rows != 75 then 
   return -1
 endi
-sql select * from $mt where ts < now + 4m and tbcol3 = 0 and tbcol1 = 0
+sql select * from $mt where ts < 1626739440001 and tbcol3 = 0 and tbcol1 = 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts < now + 4m and tbcol3 <> 0 and tbcol1 <> 0
+sql select * from $mt where ts < 1626739440001 and tbcol3 <> 0 and tbcol1 <> 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts <= now + 4m and tbcol3 = 0 and tbcol1 = 0
+sql select * from $mt where ts <= 1626739440001 and tbcol3 = 0 and tbcol1 = 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts <= now + 4m and tbcol3 <> 0 and tbcol1 <> 0
+sql select * from $mt where ts <= 1626739440001 and tbcol3 <> 0 and tbcol1 <> 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and ts < now + 5m and tbcol3 <> 0 and tbcol1 <> 0
+sql select * from $mt where ts > 1626739440001 and ts < 1626739500001 and tbcol3 <> 0 and tbcol1 <> 0
 if $rows != 5 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and tbcol3 <> 0 and ts < now + 5m and ts < now + 5m and tbcol1 <> 0
+sql select * from $mt where ts > 1626739440001 and tbcol3 <> 0 and ts < 1626739500001 and ts < 1626739500001 and tbcol1 <> 0
 if $rows != 5 then 
   return -1
 endi
 
 print =============== step13
-sql select * from $mt where ts > now + 4m and tbcol3 = 1 and tbcol2 = 1
+sql select * from $mt where ts > 1626739440001 and tbcol3 = 1 and tbcol2 = 1
 if $rows != 75 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and tbcol3 <> 1 and tbcol2 <> 1
+sql select * from $mt where ts > 1626739440001 and tbcol3 <> 1 and tbcol2 <> 1
 if $rows != 75 then 
   return -1
 endi
-sql select * from $mt where ts < now + 4m and tbcol3 = 0 and tbcol2 = 0
+sql select * from $mt where ts < 1626739440001 and tbcol3 = 0 and tbcol2 = 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts < now + 4m and tbcol3 <> 0 and tbcol2 <> 0
+sql select * from $mt where ts < 1626739440001 and tbcol3 <> 0 and tbcol2 <> 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts <= now + 4m and tbcol3 = 0 and tbcol2 = 0
+sql select * from $mt where ts <= 1626739440001 and tbcol3 = 0 and tbcol2 = 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts <= now + 4m and tbcol3 <> 0 and tbcol2 <> 0
+sql select * from $mt where ts <= 1626739440001 and tbcol3 <> 0 and tbcol2 <> 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and ts < now + 5m and tbcol3 <> 0 and tbcol2 <> 0
+sql select * from $mt where ts > 1626739440001 and ts < 1626739500001 and tbcol3 <> 0 and tbcol2 <> 0
 if $rows != 5 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and tbcol3 <> 0 and ts < now + 5m and ts < now + 5m and tbcol2 <> 0
+sql select * from $mt where ts > 1626739440001 and tbcol3 <> 0 and ts < 1626739500001 and ts < 1626739500001 and tbcol2 <> 0
 if $rows != 5 then 
   return -1
 endi
 
 print =============== step14
-sql select * from $mt where ts > now + 4m and tbcol3 = 1 and tbcol4 = 1
+sql select * from $mt where ts > 1626739440001 and tbcol3 = 1 and tbcol4 = 1
 if $rows != 75 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and tbcol3 <> 1 and tbcol4 <> 1
+sql select * from $mt where ts > 1626739440001 and tbcol3 <> 1 and tbcol4 <> 1
 if $rows != 75 then 
   return -1
 endi
-sql select * from $mt where ts < now + 4m and tbcol3 = 0 and tbcol4 = 0
+sql select * from $mt where ts < 1626739440001 and tbcol3 = 0 and tbcol4 = 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts < now + 4m and tbcol3 <> 0 and tbcol4 <> 0
+sql select * from $mt where ts < 1626739440001 and tbcol3 <> 0 and tbcol4 <> 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts <= now + 4m and tbcol3 = 0 and tbcol4 = 0
+sql select * from $mt where ts <= 1626739440001 and tbcol3 = 0 and tbcol4 = 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts <= now + 4m and tbcol3 <> 0 and tbcol4 <> 0
+sql select * from $mt where ts <= 1626739440001 and tbcol3 <> 0 and tbcol4 <> 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and ts < now + 5m and tbcol3 <> 0 and tbcol4 <> 0
+sql select * from $mt where ts > 1626739440001 and ts < 1626739500001 and tbcol3 <> 0 and tbcol4 <> 0
 if $rows != 5 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and tbcol3 <> 0 and ts < now + 5m and ts < now + 5m and tbcol4 <> 0
+sql select * from $mt where ts > 1626739440001 and tbcol3 <> 0 and ts < 1626739500001 and ts < 1626739500001 and tbcol4 <> 0
 if $rows != 5 then 
   return -1
 endi
 
 print =============== step15
-sql select * from $mt where ts > now + 4m and tbcol1 = 1 and tbcol2 = 1 and tbcol3 = 1
+sql select * from $mt where ts > 1626739440001 and tbcol1 = 1 and tbcol2 = 1 and tbcol3 = 1
 if $rows != 75 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and tbcol1 <> 1 and tbcol2 <> 1  and tbcol3 <> 1
+sql select * from $mt where ts > 1626739440001 and tbcol1 <> 1 and tbcol2 <> 1  and tbcol3 <> 1
 if $rows != 75 then 
   return -1
 endi
-sql select * from $mt where ts < now + 4m and tbcol1 = 0 and tbcol2 = 0 and tbcol3 = 0
+sql select * from $mt where ts < 1626739440001 and tbcol1 = 0 and tbcol2 = 0 and tbcol3 = 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts < now + 4m and tbcol1 <> 0 and tbcol2 <> 0 and tbcol3 <> 0
+sql select * from $mt where ts < 1626739440001 and tbcol1 <> 0 and tbcol2 <> 0 and tbcol3 <> 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts <= now + 4m and tbcol1 = 0 and tbcol2 = 0 and tbcol3 = 0
+sql select * from $mt where ts <= 1626739440001 and tbcol1 = 0 and tbcol2 = 0 and tbcol3 = 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts <= now + 4m and tbcol1 <> 0 and tbcol2 <> 0 and tbcol3 <> 0
+sql select * from $mt where ts <= 1626739440001 and tbcol1 <> 0 and tbcol2 <> 0 and tbcol3 <> 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and ts < now + 5m and tbcol1 <> 0 and tbcol2 <> 0  and tbcol3 <> 0
+sql select * from $mt where ts > 1626739440001 and ts < 1626739500001 and tbcol1 <> 0 and tbcol2 <> 0  and tbcol3 <> 0
 if $rows != 5 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and tbcol1 <> 0 and ts < now + 5m and ts < now + 5m and tbcol2 <> 0  and tbcol3 <> 0
+sql select * from $mt where ts > 1626739440001 and tbcol1 <> 0 and ts < 1626739500001 and ts < 1626739500001 and tbcol2 <> 0  and tbcol3 <> 0
 if $rows != 5 then 
   return -1
 endi
 
 print =============== step16
-sql select * from $mt where ts > now + 4m and tbcol4 = 1 and tbcol2 = 1 and tbcol3 = 1
+sql select * from $mt where ts > 1626739440001 and tbcol4 = 1 and tbcol2 = 1 and tbcol3 = 1
 if $rows != 75 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and tbcol4 <> 1 and tbcol2 <> 1  and tbcol3 <> 1
+sql select * from $mt where ts > 1626739440001 and tbcol4 <> 1 and tbcol2 <> 1  and tbcol3 <> 1
 if $rows != 75 then 
   return -1
 endi
-sql select * from $mt where ts < now + 4m and tbcol4 = 0 and tbcol2 = 0 and tbcol3 = 0
+sql select * from $mt where ts < 1626739440001 and tbcol4 = 0 and tbcol2 = 0 and tbcol3 = 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts < now + 4m and tbcol4 <> 0 and tbcol2 <> 0 and tbcol3 <> 0
+sql select * from $mt where ts < 1626739440001 and tbcol4 <> 0 and tbcol2 <> 0 and tbcol3 <> 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts <= now + 4m and tbcol4 = 0 and tbcol2 = 0 and tbcol3 = 0
+sql select * from $mt where ts <= 1626739440001 and tbcol4 = 0 and tbcol2 = 0 and tbcol3 = 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts <= now + 4m and tbcol4 <> 0 and tbcol2 <> 0 and tbcol3 <> 0
+sql select * from $mt where ts <= 1626739440001 and tbcol4 <> 0 and tbcol2 <> 0 and tbcol3 <> 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and ts < now + 5m and tbcol4 <> 0 and tbcol2 <> 0  and tbcol3 <> 0
+sql select * from $mt where ts > 1626739440001 and ts < 1626739500001 and tbcol4 <> 0 and tbcol2 <> 0  and tbcol3 <> 0
 if $rows != 5 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and tbcol4 <> 0 and ts < now + 5m and ts < now + 5m and tbcol2 <> 0  and tbcol3 <> 0
+sql select * from $mt where ts > 1626739440001 and tbcol4 <> 0 and ts < 1626739500001 and ts < 1626739500001 and tbcol2 <> 0  and tbcol3 <> 0
 if $rows != 5 then 
   return -1
 endi
 
 print =============== step17
-sql select * from $mt where ts > now + 4m and tbcol4 = 1 and tbcol2 = 1 and tbcol3 = 1 and tbcol1 = 1
+sql select * from $mt where ts > 1626739440001 and tbcol4 = 1 and tbcol2 = 1 and tbcol3 = 1 and tbcol1 = 1
 if $rows != 75 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and tbcol4 <> 1 and tbcol2 <> 1  and tbcol3 <> 1 and tbcol1 <> 1
+sql select * from $mt where ts > 1626739440001 and tbcol4 <> 1 and tbcol2 <> 1  and tbcol3 <> 1 and tbcol1 <> 1
 if $rows != 75 then 
   return -1
 endi
-sql select * from $mt where ts < now + 4m and tbcol4 = 0 and tbcol2 = 0 and tbcol3 = 0 and tbcol1 = 0
+sql select * from $mt where ts < 1626739440001 and tbcol4 = 0 and tbcol2 = 0 and tbcol3 = 0 and tbcol1 = 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts < now + 4m and tbcol4 <> 0 and tbcol2 <> 0 and tbcol3 <> 0 and tbcol1 <> 0
+sql select * from $mt where ts < 1626739440001 and tbcol4 <> 0 and tbcol2 <> 0 and tbcol3 <> 0 and tbcol1 <> 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts <= now + 4m and tbcol4 = 0 and tbcol2 = 0 and tbcol3 = 0 and tbcol1 = 0
+sql select * from $mt where ts <= 1626739440001 and tbcol4 = 0 and tbcol2 = 0 and tbcol3 = 0 and tbcol1 = 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts <= now + 4m and tbcol4 <> 0 and tbcol2 <> 0 and tbcol3 <> 0 and tbcol1 <> 0
+sql select * from $mt where ts <= 1626739440001 and tbcol4 <> 0 and tbcol2 <> 0 and tbcol3 <> 0 and tbcol1 <> 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and ts < now + 5m and tbcol4 <> 0 and tbcol2 <> 0  and tbcol3 <> 0 and tbcol1 <> 0
+sql select * from $mt where ts > 1626739440001 and ts < 1626739500001 and tbcol4 <> 0 and tbcol2 <> 0  and tbcol3 <> 0 and tbcol1 <> 0
 if $rows != 5 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and tbcol4 <> 0 and ts < now + 5m and ts < now + 5m and tbcol2 <> 0  and tbcol3 <> 0 and tbcol1 <> 0
+sql select * from $mt where ts > 1626739440001 and tbcol4 <> 0 and ts < 1626739500001 and ts < 1626739500001 and tbcol2 <> 0  and tbcol3 <> 0 and tbcol1 <> 0
 if $rows != 5 then 
   return -1
 endi
@@ -565,31 +565,31 @@ if $data00 != 100 then
 endi
 
 print =============== step20
-sql select count(tbcol1), avg(tbcol1), sum(tbcol1), min(tbcol1), max(tbcol1), first(tbcol1), last(tbcol1) from $mt where ts < now + 4m
+sql select count(tbcol1), avg(tbcol1), sum(tbcol1), min(tbcol1), max(tbcol1), first(tbcol1), last(tbcol1) from $mt where ts < 1626739440001
 print $data00 $data01 $data02 $data03 $data04 $data05 $data06 
 if $data00 != 50 then 
   return -1
 endi
 
-sql select count(tbcol1), avg(tbcol1), sum(tbcol1), min(tbcol1), max(tbcol1), first(tbcol1), last(tbcol1) from $mt where ts < now + 4m and tbcol1 = 1
+sql select count(tbcol1), avg(tbcol1), sum(tbcol1), min(tbcol1), max(tbcol1), first(tbcol1), last(tbcol1) from $mt where ts < 1626739440001 and tbcol1 = 1
 print $data00 $data01 $data02 $data03 $data04 $data05 $data06 
 if $data00 != 25 then 
   return -1
 endi
 
-sql select count(tbcol1), avg(tbcol1), sum(tbcol1), min(tbcol1), max(tbcol1), first(tbcol1), last(tbcol1) from $mt where ts < now + 4m and tbcol1 = 1 and tbcol2 = 1 
+sql select count(tbcol1), avg(tbcol1), sum(tbcol1), min(tbcol1), max(tbcol1), first(tbcol1), last(tbcol1) from $mt where ts < 1626739440001 and tbcol1 = 1 and tbcol2 = 1 
 print $data00 $data01 $data02 $data03 $data04 $data05 $data06 
 if $data00 != 25 then 
   return -1
 endi
 
-sql select count(tbcol1), avg(tbcol1), sum(tbcol1), min(tbcol1), max(tbcol1), first(tbcol1), last(tbcol1) from $mt where ts < now + 4m and tbcol1 = 1 and tbcol2 = 1 and tbcol3 = 1
+sql select count(tbcol1), avg(tbcol1), sum(tbcol1), min(tbcol1), max(tbcol1), first(tbcol1), last(tbcol1) from $mt where ts < 1626739440001 and tbcol1 = 1 and tbcol2 = 1 and tbcol3 = 1
 print $data00 $data01 $data02 $data03 $data04 $data05 $data06 
 if $data00 != 25 then 
   return -1
 endi
 
-sql select count(tbcol1), avg(tbcol1), sum(tbcol1), min(tbcol1), max(tbcol1), first(tbcol1), last(tbcol1) from $mt where ts < now + 4m and tbcol1 = 1 and tbcol2 = 1 and tbcol3 = 1 and tbcol4 = 1
+sql select count(tbcol1), avg(tbcol1), sum(tbcol1), min(tbcol1), max(tbcol1), first(tbcol1), last(tbcol1) from $mt where ts < 1626739440001 and tbcol1 = 1 and tbcol2 = 1 and tbcol3 = 1 and tbcol4 = 1
 print $data00 $data01 $data02 $data03 $data04 $data05 $data06 
 if $data00 != 25 then 
   return -1
@@ -646,31 +646,31 @@ if $data00 != 100 then
 endi
 
 print =============== step23
-sql select count(tbcol1), avg(tbcol1), sum(tbcol1), min(tbcol1), max(tbcol1), first(tbcol1), last(tbcol1) from $mt where ts < now + 4m group by tgcol2
+sql select count(tbcol1), avg(tbcol1), sum(tbcol1), min(tbcol1), max(tbcol1), first(tbcol1), last(tbcol1) from $mt where ts < 1626739440001 group by tgcol2
 print $data00 $data01 $data02 $data03 $data04 $data05 $data06 
 if $data00 != 25 then 
   return -1
 endi
 
-sql select count(tbcol1), avg(tbcol1), sum(tbcol1), min(tbcol1), max(tbcol1), first(tbcol1), last(tbcol1) from $mt where ts < now + 4m and tbcol1 = 1 group by tgcol2
+sql select count(tbcol1), avg(tbcol1), sum(tbcol1), min(tbcol1), max(tbcol1), first(tbcol1), last(tbcol1) from $mt where ts < 1626739440001 and tbcol1 = 1 group by tgcol2
 print $data00 $data01 $data02 $data03 $data04 $data05 $data06 
 if $data00 != 25 then 
   return -1
 endi
 
-sql select count(tbcol1), avg(tbcol1), sum(tbcol1), min(tbcol1), max(tbcol1), first(tbcol1), last(tbcol1) from $mt where ts < now + 4m and tbcol1 = 1 and tbcol2 = 1  group by tgcol2
+sql select count(tbcol1), avg(tbcol1), sum(tbcol1), min(tbcol1), max(tbcol1), first(tbcol1), last(tbcol1) from $mt where ts < 1626739440001 and tbcol1 = 1 and tbcol2 = 1  group by tgcol2
 print $data00 $data01 $data02 $data03 $data04 $data05 $data06 
 if $data00 != 25 then 
   return -1
 endi
 
-sql select count(tbcol1), avg(tbcol1), sum(tbcol1), min(tbcol1), max(tbcol1), first(tbcol1), last(tbcol1) from $mt where ts < now + 4m and tbcol1 = 1 and tbcol2 = 1 and tbcol3 = 1 group by tgcol2
+sql select count(tbcol1), avg(tbcol1), sum(tbcol1), min(tbcol1), max(tbcol1), first(tbcol1), last(tbcol1) from $mt where ts < 1626739440001 and tbcol1 = 1 and tbcol2 = 1 and tbcol3 = 1 group by tgcol2
 print $data00 $data01 $data02 $data03 $data04 $data05 $data06 
 if $data00 != 25 then 
   return -1
 endi
 
-sql select count(tbcol1), avg(tbcol1), sum(tbcol1), min(tbcol1), max(tbcol1), first(tbcol1), last(tbcol1) from $mt where ts < now + 4m and tbcol1 = 1 and tbcol2 = 1 and tbcol3 = 1 and tbcol4 = 1 group by tgcol2
+sql select count(tbcol1), avg(tbcol1), sum(tbcol1), min(tbcol1), max(tbcol1), first(tbcol1), last(tbcol1) from $mt where ts < 1626739440001 and tbcol1 = 1 and tbcol2 = 1 and tbcol3 = 1 and tbcol4 = 1 group by tgcol2
 print $data00 $data01 $data02 $data03 $data04 $data05 $data06 
 if $data00 != 25 then 
   return -1
diff --git a/tests/script/general/field/5.sim b/tests/script/general/field/5.sim
index e02bbd122ff00a0f727ff8706e4a5cc3cf28a57b..e1421bdb4f9e25b37deeafe699feb1ce8c0f6c0a 100644
--- a/tests/script/general/field/5.sim
+++ b/tests/script/general/field/5.sim
@@ -30,7 +30,7 @@ while $i < 5
   $x = 0
   while $x < $rowNum
     $ms = $x . m 
-    sql insert into $tb values (now + $ms , 0, 0, 0, 0, 0 ) 
+    sql insert into $tb values (1626739200000 + $ms , 0, 0, 0, 0, 0 ) 
     $x = $x + 1
   endw  
   $i = $i + 1
@@ -41,7 +41,7 @@ while $i < 10
   $x = 0
   while $x < $rowNum
     $ms = $x . m 
-    sql insert into $tb values (now + $ms , 1, 1, 1, 1, 1 ) 
+    sql insert into $tb values (1626739200000 + $ms , 1, 1, 1, 1, 1 ) 
     $x = $x + 1
   endw  
   $i = $i + 1
@@ -53,19 +53,19 @@ if $rows != $totalNum then
   return -1
 endi
 
-sql select * from $mt where ts < now + 4m
+sql select * from $mt where ts < 1626739440001
 if $rows != 50 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m
+sql select * from $mt where ts > 1626739440001
 if $rows != 150 then 
   return -1
 endi
-sql select * from $mt where ts = now + 4m
+sql select * from $mt where ts = 1626739440001
 if $rows != 0 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and ts < now + 5m
+sql select * from $mt where ts > 1626739440001 and ts < 1626739500001
 if $rows != 10 then 
   return -1
 endi
@@ -177,443 +177,443 @@ if $rows != 100 then
 endi
 
 print =============== step8
-sql select * from $mt where ts > now + 4m and tbcol1 = 1
+sql select * from $mt where ts > 1626739440001 and tbcol1 = 1
 if $rows != 75 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and tbcol1 <> 1
+sql select * from $mt where ts > 1626739440001 and tbcol1 <> 1
 if $rows != 75 then 
   return -1
 endi
-sql select * from $mt where ts < now + 4m and tbcol1 = 0
+sql select * from $mt where ts < 1626739440001 and tbcol1 = 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts < now + 4m and tbcol1 <> 0
+sql select * from $mt where ts < 1626739440001 and tbcol1 <> 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts <= now + 4m and tbcol1 = 0
+sql select * from $mt where ts <= 1626739440001 and tbcol1 = 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts <= now + 4m and tbcol1 <> 0
+sql select * from $mt where ts <= 1626739440001 and tbcol1 <> 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and ts < now + 5m and tbcol1 <> 0
+sql select * from $mt where ts > 1626739440001 and ts < 1626739500001 and tbcol1 <> 0
 if $rows != 5 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and tbcol1 <> 0 and ts < now + 5m
+sql select * from $mt where ts > 1626739440001 and tbcol1 <> 0 and ts < 1626739500001
 if $rows != 5 then 
   return -1
 endi
 
 print =============== step9
-sql select * from $mt where ts > now + 4m and tbcol2 = 1
+sql select * from $mt where ts > 1626739440001 and tbcol2 = 1
 if $rows != 75 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and tbcol2 <> 1
+sql select * from $mt where ts > 1626739440001 and tbcol2 <> 1
 if $rows != 75 then 
   return -1
 endi
-sql select * from $mt where ts < now + 4m and tbcol2 = 0
+sql select * from $mt where ts < 1626739440001 and tbcol2 = 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts < now + 4m and tbcol2 <> 0
+sql select * from $mt where ts < 1626739440001 and tbcol2 <> 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts <= now + 4m and tbcol2 = 0
+sql select * from $mt where ts <= 1626739440001 and tbcol2 = 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts <= now + 4m and tbcol2 <> 0
+sql select * from $mt where ts <= 1626739440001 and tbcol2 <> 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and ts < now + 5m and tbcol2 <> 0
+sql select * from $mt where ts > 1626739440001 and ts < 1626739500001 and tbcol2 <> 0
 if $rows != 5 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and tbcol2 <> 0 and ts < now + 5m
+sql select * from $mt where ts > 1626739440001 and tbcol2 <> 0 and ts < 1626739500001
 if $rows != 5 then 
   return -1
 endi
 
 print =============== step10
-sql select * from $mt where ts > now + 4m and tbcol3 = 1
+sql select * from $mt where ts > 1626739440001 and tbcol3 = 1
 if $rows != 75 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and tbcol3 <> 1
+sql select * from $mt where ts > 1626739440001 and tbcol3 <> 1
 if $rows != 75 then 
   return -1
 endi
-sql select * from $mt where ts < now + 4m and tbcol3 = 0
+sql select * from $mt where ts < 1626739440001 and tbcol3 = 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts < now + 4m and tbcol3 <> 0
+sql select * from $mt where ts < 1626739440001 and tbcol3 <> 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts <= now + 4m and tbcol3 = 0
+sql select * from $mt where ts <= 1626739440001 and tbcol3 = 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts <= now + 4m and tbcol3 <> 0
+sql select * from $mt where ts <= 1626739440001 and tbcol3 <> 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and ts < now + 5m and tbcol3 <> 0
+sql select * from $mt where ts > 1626739440001 and ts < 1626739500001 and tbcol3 <> 0
 if $rows != 5 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and tbcol3 <> 0 and ts < now + 5m
+sql select * from $mt where ts > 1626739440001 and tbcol3 <> 0 and ts < 1626739500001
 if $rows != 5 then 
   return -1
 endi
 
 print =============== step11
-sql select * from $mt where ts > now + 4m and tbcol4 = 1
+sql select * from $mt where ts > 1626739440001 and tbcol4 = 1
 if $rows != 75 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and tbcol4 <> 1
+sql select * from $mt where ts > 1626739440001 and tbcol4 <> 1
 if $rows != 75 then 
   return -1
 endi
-sql select * from $mt where ts < now + 4m and tbcol4 = 0
+sql select * from $mt where ts < 1626739440001 and tbcol4 = 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts < now + 4m and tbcol4 <> 0
+sql select * from $mt where ts < 1626739440001 and tbcol4 <> 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts <= now + 4m and tbcol4 = 0
+sql select * from $mt where ts <= 1626739440001 and tbcol4 = 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts <= now + 4m and tbcol4 <> 0
+sql select * from $mt where ts <= 1626739440001 and tbcol4 <> 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and ts < now + 5m and tbcol4 <> 0
+sql select * from $mt where ts > 1626739440001 and ts < 1626739500001 and tbcol4 <> 0
 if $rows != 5 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and tbcol4 <> 0 and ts < now + 5m
+sql select * from $mt where ts > 1626739440001 and tbcol4 <> 0 and ts < 1626739500001
 if $rows != 5 then 
   return -1
 endi
 
 print =============== step12
-sql select * from $mt where ts > now + 4m and tbcol5 = 1
+sql select * from $mt where ts > 1626739440001 and tbcol5 = 1
 if $rows != 75 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and tbcol5 <> 1
+sql select * from $mt where ts > 1626739440001 and tbcol5 <> 1
 if $rows != 75 then 
   return -1
 endi
-sql select * from $mt where ts < now + 4m and tbcol5 = 0
+sql select * from $mt where ts < 1626739440001 and tbcol5 = 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts < now + 4m and tbcol5 <> 0
+sql select * from $mt where ts < 1626739440001 and tbcol5 <> 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts <= now + 4m and tbcol5 = 0
+sql select * from $mt where ts <= 1626739440001 and tbcol5 = 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts <= now + 4m and tbcol5 <> 0
+sql select * from $mt where ts <= 1626739440001 and tbcol5 <> 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and ts < now + 5m and tbcol5 <> 0
+sql select * from $mt where ts > 1626739440001 and ts < 1626739500001 and tbcol5 <> 0
 if $rows != 5 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and tbcol5 <> 0 and ts < now + 5m
+sql select * from $mt where ts > 1626739440001 and tbcol5 <> 0 and ts < 1626739500001
 if $rows != 5 then 
   return -1
 endi
 
 print =============== step13
-sql select * from $mt where ts > now + 4m and tbcol2 = 1 and tbcol1 = 1
+sql select * from $mt where ts > 1626739440001 and tbcol2 = 1 and tbcol1 = 1
 if $rows != 75 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and tbcol2 <> 1 and tbcol1 <> 1
+sql select * from $mt where ts > 1626739440001 and tbcol2 <> 1 and tbcol1 <> 1
 if $rows != 75 then 
   return -1
 endi
-sql select * from $mt where ts < now + 4m and tbcol2 = 0 and tbcol1 = 0
+sql select * from $mt where ts < 1626739440001 and tbcol2 = 0 and tbcol1 = 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts < now + 4m and tbcol2 <> 0 and tbcol1 <> 0
+sql select * from $mt where ts < 1626739440001 and tbcol2 <> 0 and tbcol1 <> 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts <= now + 4m and tbcol2 = 0 and tbcol1 = 0
+sql select * from $mt where ts <= 1626739440001 and tbcol2 = 0 and tbcol1 = 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts <= now + 4m and tbcol2 <> 0 and tbcol1 <> 0
+sql select * from $mt where ts <= 1626739440001 and tbcol2 <> 0 and tbcol1 <> 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and ts < now + 5m and tbcol2 <> 0 and tbcol1 <> 0
+sql select * from $mt where ts > 1626739440001 and ts < 1626739500001 and tbcol2 <> 0 and tbcol1 <> 0
 if $rows != 5 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and tbcol2 <> 0 and ts < now + 5m and ts < now + 5m and tbcol1 <> 0
+sql select * from $mt where ts > 1626739440001 and tbcol2 <> 0 and ts < 1626739500001 and ts < 1626739500001 and tbcol1 <> 0
 if $rows != 5 then 
   return -1
 endi
 
 print =============== step14
-sql select * from $mt where ts > now + 4m and tbcol3 = 1 and tbcol2 = 1
+sql select * from $mt where ts > 1626739440001 and tbcol3 = 1 and tbcol2 = 1
 if $rows != 75 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and tbcol3 <> 1 and tbcol2 <> 1
+sql select * from $mt where ts > 1626739440001 and tbcol3 <> 1 and tbcol2 <> 1
 if $rows != 75 then 
   return -1
 endi
-sql select * from $mt where ts < now + 4m and tbcol3 = 0 and tbcol2 = 0
+sql select * from $mt where ts < 1626739440001 and tbcol3 = 0 and tbcol2 = 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts < now + 4m and tbcol3 <> 0 and tbcol2 <> 0
+sql select * from $mt where ts < 1626739440001 and tbcol3 <> 0 and tbcol2 <> 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts <= now + 4m and tbcol3 = 0 and tbcol2 = 0
+sql select * from $mt where ts <= 1626739440001 and tbcol3 = 0 and tbcol2 = 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts <= now + 4m and tbcol3 <> 0 and tbcol2 <> 0
+sql select * from $mt where ts <= 1626739440001 and tbcol3 <> 0 and tbcol2 <> 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and ts < now + 5m and tbcol3 <> 0 and tbcol2 <> 0
+sql select * from $mt where ts > 1626739440001 and ts < 1626739500001 and tbcol3 <> 0 and tbcol2 <> 0
 if $rows != 5 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and tbcol3 <> 0 and ts < now + 5m and ts < now + 5m and tbcol2 <> 0
+sql select * from $mt where ts > 1626739440001 and tbcol3 <> 0 and ts < 1626739500001 and ts < 1626739500001 and tbcol2 <> 0
 if $rows != 5 then 
   return -1
 endi
 
 print =============== step15
-sql select * from $mt where ts > now + 4m and tbcol3 = 1 and tbcol4 = 1
+sql select * from $mt where ts > 1626739440001 and tbcol3 = 1 and tbcol4 = 1
 if $rows != 75 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and tbcol3 <> 1 and tbcol4 <> 1
+sql select * from $mt where ts > 1626739440001 and tbcol3 <> 1 and tbcol4 <> 1
 if $rows != 75 then 
   return -1
 endi
-sql select * from $mt where ts < now + 4m and tbcol3 = 0 and tbcol4 = 0
+sql select * from $mt where ts < 1626739440001 and tbcol3 = 0 and tbcol4 = 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts < now + 4m and tbcol3 <> 0 and tbcol4 <> 0
+sql select * from $mt where ts < 1626739440001 and tbcol3 <> 0 and tbcol4 <> 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts <= now + 4m and tbcol3 = 0 and tbcol4 = 0
+sql select * from $mt where ts <= 1626739440001 and tbcol3 = 0 and tbcol4 = 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts <= now + 4m and tbcol3 <> 0 and tbcol4 <> 0
+sql select * from $mt where ts <= 1626739440001 and tbcol3 <> 0 and tbcol4 <> 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and ts < now + 5m and tbcol3 <> 0 and tbcol4 <> 0
+sql select * from $mt where ts > 1626739440001 and ts < 1626739500001 and tbcol3 <> 0 and tbcol4 <> 0
 if $rows != 5 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and tbcol3 <> 0 and ts < now + 5m and ts < now + 5m and tbcol4 <> 0
+sql select * from $mt where ts > 1626739440001 and tbcol3 <> 0 and ts < 1626739500001 and ts < 1626739500001 and tbcol4 <> 0
 if $rows != 5 then 
   return -1
 endi
 
 print =============== step16
-sql select * from $mt where ts > now + 4m and tbcol5 = 1 and tbcol4 = 1
+sql select * from $mt where ts > 1626739440001 and tbcol5 = 1 and tbcol4 = 1
 if $rows != 75 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and tbcol5 <> 1 and tbcol4 <> 1
+sql select * from $mt where ts > 1626739440001 and tbcol5 <> 1 and tbcol4 <> 1
 if $rows != 75 then 
   return -1
 endi
-sql select * from $mt where ts < now + 4m and tbcol5 = 0 and tbcol4 = 0
+sql select * from $mt where ts < 1626739440001 and tbcol5 = 0 and tbcol4 = 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts < now + 4m and tbcol5 <> 0 and tbcol4 <> 0
+sql select * from $mt where ts < 1626739440001 and tbcol5 <> 0 and tbcol4 <> 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts <= now + 4m and tbcol5 = 0 and tbcol4 = 0
+sql select * from $mt where ts <= 1626739440001 and tbcol5 = 0 and tbcol4 = 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts <= now + 4m and tbcol5 <> 0 and tbcol4 <> 0
+sql select * from $mt where ts <= 1626739440001 and tbcol5 <> 0 and tbcol4 <> 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and ts < now + 5m and tbcol5 <> 0 and tbcol4 <> 0
+sql select * from $mt where ts > 1626739440001 and ts < 1626739500001 and tbcol5 <> 0 and tbcol4 <> 0
 if $rows != 5 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and tbcol5 <> 0 and ts < now + 5m and ts < now + 5m and tbcol4 <> 0
+sql select * from $mt where ts > 1626739440001 and tbcol5 <> 0 and ts < 1626739500001 and ts < 1626739500001 and tbcol4 <> 0
 if $rows != 5 then 
   return -1
 endi
 
 print =============== step17
-sql select * from $mt where ts > now + 4m and tbcol1 = 1 and tbcol2 = 1 and tbcol3 = 1
+sql select * from $mt where ts > 1626739440001 and tbcol1 = 1 and tbcol2 = 1 and tbcol3 = 1
 if $rows != 75 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and tbcol1 <> 1 and tbcol2 <> 1  and tbcol3 <> 1
+sql select * from $mt where ts > 1626739440001 and tbcol1 <> 1 and tbcol2 <> 1  and tbcol3 <> 1
 if $rows != 75 then 
   return -1
 endi
-sql select * from $mt where ts < now + 4m and tbcol1 = 0 and tbcol2 = 0 and tbcol3 = 0
+sql select * from $mt where ts < 1626739440001 and tbcol1 = 0 and tbcol2 = 0 and tbcol3 = 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts < now + 4m and tbcol1 <> 0 and tbcol2 <> 0 and tbcol3 <> 0
+sql select * from $mt where ts < 1626739440001 and tbcol1 <> 0 and tbcol2 <> 0 and tbcol3 <> 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts <= now + 4m and tbcol1 = 0 and tbcol2 = 0 and tbcol3 = 0
+sql select * from $mt where ts <= 1626739440001 and tbcol1 = 0 and tbcol2 = 0 and tbcol3 = 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts <= now + 4m and tbcol1 <> 0 and tbcol2 <> 0 and tbcol3 <> 0
+sql select * from $mt where ts <= 1626739440001 and tbcol1 <> 0 and tbcol2 <> 0 and tbcol3 <> 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and ts < now + 5m and tbcol1 <> 0 and tbcol2 <> 0  and tbcol3 <> 0
+sql select * from $mt where ts > 1626739440001 and ts < 1626739500001 and tbcol1 <> 0 and tbcol2 <> 0  and tbcol3 <> 0
 if $rows != 5 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and tbcol1 <> 0 and ts < now + 5m and ts < now + 5m and tbcol2 <> 0  and tbcol3 <> 0
+sql select * from $mt where ts > 1626739440001 and tbcol1 <> 0 and ts < 1626739500001 and ts < 1626739500001 and tbcol2 <> 0  and tbcol3 <> 0
 if $rows != 5 then 
   return -1
 endi
 
 print =============== step18
-sql select * from $mt where ts > now + 4m and tbcol4 = 1 and tbcol2 = 1 and tbcol3 = 1
+sql select * from $mt where ts > 1626739440001 and tbcol4 = 1 and tbcol2 = 1 and tbcol3 = 1
 if $rows != 75 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and tbcol4 <> 1 and tbcol2 <> 1  and tbcol3 <> 1
+sql select * from $mt where ts > 1626739440001 and tbcol4 <> 1 and tbcol2 <> 1  and tbcol3 <> 1
 if $rows != 75 then 
   return -1
 endi
-sql select * from $mt where ts < now + 4m and tbcol4 = 0 and tbcol2 = 0 and tbcol3 = 0
+sql select * from $mt where ts < 1626739440001 and tbcol4 = 0 and tbcol2 = 0 and tbcol3 = 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts < now + 4m and tbcol4 <> 0 and tbcol2 <> 0 and tbcol3 <> 0
+sql select * from $mt where ts < 1626739440001 and tbcol4 <> 0 and tbcol2 <> 0 and tbcol3 <> 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts <= now + 4m and tbcol4 = 0 and tbcol2 = 0 and tbcol3 = 0
+sql select * from $mt where ts <= 1626739440001 and tbcol4 = 0 and tbcol2 = 0 and tbcol3 = 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts <= now + 4m and tbcol4 <> 0 and tbcol2 <> 0 and tbcol3 <> 0
+sql select * from $mt where ts <= 1626739440001 and tbcol4 <> 0 and tbcol2 <> 0 and tbcol3 <> 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and ts < now + 5m and tbcol4 <> 0 and tbcol2 <> 0  and tbcol3 <> 0
+sql select * from $mt where ts > 1626739440001 and ts < 1626739500001 and tbcol4 <> 0 and tbcol2 <> 0  and tbcol3 <> 0
 if $rows != 5 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and tbcol4 <> 0 and ts < now + 5m and ts < now + 5m and tbcol2 <> 0  and tbcol3 <> 0
+sql select * from $mt where ts > 1626739440001 and tbcol4 <> 0 and ts < 1626739500001 and ts < 1626739500001 and tbcol2 <> 0  and tbcol3 <> 0
 if $rows != 5 then 
   return -1
 endi
 
 print =============== step19
-sql select * from $mt where ts > now + 4m and tbcol4 = 1 and tbcol2 = 1 and tbcol3 = 1 and tbcol1 = 1
+sql select * from $mt where ts > 1626739440001 and tbcol4 = 1 and tbcol2 = 1 and tbcol3 = 1 and tbcol1 = 1
 if $rows != 75 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and tbcol4 <> 1 and tbcol2 <> 1  and tbcol3 <> 1 and tbcol1 <> 1
+sql select * from $mt where ts > 1626739440001 and tbcol4 <> 1 and tbcol2 <> 1  and tbcol3 <> 1 and tbcol1 <> 1
 if $rows != 75 then 
   return -1
 endi
-sql select * from $mt where ts < now + 4m and tbcol4 = 0 and tbcol2 = 0 and tbcol3 = 0 and tbcol1 = 0
+sql select * from $mt where ts < 1626739440001 and tbcol4 = 0 and tbcol2 = 0 and tbcol3 = 0 and tbcol1 = 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts < now + 4m and tbcol4 <> 0 and tbcol2 <> 0 and tbcol3 <> 0 and tbcol1 <> 0
+sql select * from $mt where ts < 1626739440001 and tbcol4 <> 0 and tbcol2 <> 0 and tbcol3 <> 0 and tbcol1 <> 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts <= now + 4m and tbcol4 = 0 and tbcol2 = 0 and tbcol3 = 0 and tbcol1 = 0
+sql select * from $mt where ts <= 1626739440001 and tbcol4 = 0 and tbcol2 = 0 and tbcol3 = 0 and tbcol1 = 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts <= now + 4m and tbcol4 <> 0 and tbcol2 <> 0 and tbcol3 <> 0 and tbcol1 <> 0
+sql select * from $mt where ts <= 1626739440001 and tbcol4 <> 0 and tbcol2 <> 0 and tbcol3 <> 0 and tbcol1 <> 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and ts < now + 5m and tbcol4 <> 0 and tbcol2 <> 0  and tbcol3 <> 0 and tbcol1 <> 0
+sql select * from $mt where ts > 1626739440001 and ts < 1626739500001 and tbcol4 <> 0 and tbcol2 <> 0  and tbcol3 <> 0 and tbcol1 <> 0
 if $rows != 5 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and tbcol4 <> 0 and ts < now + 5m and ts < now + 5m and tbcol2 <> 0  and tbcol3 <> 0 and tbcol1 <> 0
+sql select * from $mt where ts > 1626739440001 and tbcol4 <> 0 and ts < 1626739500001 and ts < 1626739500001 and tbcol2 <> 0  and tbcol3 <> 0 and tbcol1 <> 0
 if $rows != 5 then 
   return -1
 endi
 
 print =============== step20
-sql select * from $mt where ts > now + 4m and tbcol4 = 1 and tbcol2 = 1 and tbcol3 = 1 and tbcol1 = 1 and tbcol5 = 1
+sql select * from $mt where ts > 1626739440001 and tbcol4 = 1 and tbcol2 = 1 and tbcol3 = 1 and tbcol1 = 1 and tbcol5 = 1
 if $rows != 75 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and tbcol4 <> 1 and tbcol2 <> 1  and tbcol3 <> 1 and tbcol1 <> 1 and tbcol5 <> 1
+sql select * from $mt where ts > 1626739440001 and tbcol4 <> 1 and tbcol2 <> 1  and tbcol3 <> 1 and tbcol1 <> 1 and tbcol5 <> 1
 if $rows != 75 then 
   return -1
 endi
-sql select * from $mt where ts < now + 4m and tbcol4 = 0 and tbcol2 = 0 and tbcol3 = 0 and tbcol1 = 0 and tbcol5 = 0
+sql select * from $mt where ts < 1626739440001 and tbcol4 = 0 and tbcol2 = 0 and tbcol3 = 0 and tbcol1 = 0 and tbcol5 = 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts < now + 4m and tbcol4 <> 0 and tbcol2 <> 0 and tbcol3 <> 0 and tbcol1 <> 0 and tbcol5 <> 0
+sql select * from $mt where ts < 1626739440001 and tbcol4 <> 0 and tbcol2 <> 0 and tbcol3 <> 0 and tbcol1 <> 0 and tbcol5 <> 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts <= now + 4m and tbcol4 = 0 and tbcol2 = 0 and tbcol3 = 0 and tbcol1 = 0 and tbcol5 = 0
+sql select * from $mt where ts <= 1626739440001 and tbcol4 = 0 and tbcol2 = 0 and tbcol3 = 0 and tbcol1 = 0 and tbcol5 = 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts <= now + 4m and tbcol4 <> 0 and tbcol2 <> 0 and tbcol3 <> 0 and tbcol1 <> 0 and tbcol5 <> 0
+sql select * from $mt where ts <= 1626739440001 and tbcol4 <> 0 and tbcol2 <> 0 and tbcol3 <> 0 and tbcol1 <> 0 and tbcol5 <> 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and ts < now + 5m and tbcol4 <> 0 and tbcol2 <> 0  and tbcol3 <> 0 and tbcol1 <> 0 and tbcol5 <> 0
+sql select * from $mt where ts > 1626739440001 and ts < 1626739500001 and tbcol4 <> 0 and tbcol2 <> 0  and tbcol3 <> 0 and tbcol1 <> 0 and tbcol5 <> 0
 if $rows != 5 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and tbcol4 <> 0 and ts < now + 5m and ts < now + 5m and tbcol2 <> 0 and tbcol3 <> 0 and tbcol1 <> 0 and tbcol5 <> 0
+sql select * from $mt where ts > 1626739440001 and tbcol4 <> 0 and ts < 1626739500001 and ts < 1626739500001 and tbcol2 <> 0 and tbcol3 <> 0 and tbcol1 <> 0 and tbcol5 <> 0
 if $rows != 5 then 
   return -1
 endi
@@ -657,37 +657,37 @@ if $data00 != 100 then
 endi
 
 print =============== step23
-sql select count(tbcol1), avg(tbcol1), sum(tbcol1), min(tbcol1), max(tbcol1), first(tbcol1), last(tbcol1) from $mt where ts < now + 4m
+sql select count(tbcol1), avg(tbcol1), sum(tbcol1), min(tbcol1), max(tbcol1), first(tbcol1), last(tbcol1) from $mt where ts < 1626739440001
 print $data00 $data01 $data02 $data03 $data04 $data05 $data06 
 if $data00 != 50 then 
   return -1
 endi
 
-sql select count(tbcol1), avg(tbcol1), sum(tbcol1), min(tbcol1), max(tbcol1), first(tbcol1), last(tbcol1) from $mt where ts < now + 4m and tbcol1 = 1
+sql select count(tbcol1), avg(tbcol1), sum(tbcol1), min(tbcol1), max(tbcol1), first(tbcol1), last(tbcol1) from $mt where ts < 1626739440001 and tbcol1 = 1
 print $data00 $data01 $data02 $data03 $data04 $data05 $data06 
 if $data00 != 25 then 
   return -1
 endi
 
-sql select count(tbcol1), avg(tbcol1), sum(tbcol1), min(tbcol1), max(tbcol1), first(tbcol1), last(tbcol1) from $mt where ts < now + 4m and tbcol1 = 1 and tbcol2 = 1 
+sql select count(tbcol1), avg(tbcol1), sum(tbcol1), min(tbcol1), max(tbcol1), first(tbcol1), last(tbcol1) from $mt where ts < 1626739440001 and tbcol1 = 1 and tbcol2 = 1 
 print $data00 $data01 $data02 $data03 $data04 $data05 $data06 
 if $data00 != 25 then 
   return -1
 endi
 
-sql select count(tbcol1), avg(tbcol1), sum(tbcol1), min(tbcol1), max(tbcol1), first(tbcol1), last(tbcol1) from $mt where ts < now + 4m and tbcol1 = 1 and tbcol2 = 1 and tbcol3 = 1
+sql select count(tbcol1), avg(tbcol1), sum(tbcol1), min(tbcol1), max(tbcol1), first(tbcol1), last(tbcol1) from $mt where ts < 1626739440001 and tbcol1 = 1 and tbcol2 = 1 and tbcol3 = 1
 print $data00 $data01 $data02 $data03 $data04 $data05 $data06 
 if $data00 != 25 then 
   return -1
 endi
 
-sql select count(tbcol1), avg(tbcol1), sum(tbcol1), min(tbcol1), max(tbcol1), first(tbcol1), last(tbcol1) from $mt where ts < now + 4m and tbcol1 = 1 and tbcol2 = 1 and tbcol3 = 1 and tbcol4 = 1
+sql select count(tbcol1), avg(tbcol1), sum(tbcol1), min(tbcol1), max(tbcol1), first(tbcol1), last(tbcol1) from $mt where ts < 1626739440001 and tbcol1 = 1 and tbcol2 = 1 and tbcol3 = 1 and tbcol4 = 1
 print $data00 $data01 $data02 $data03 $data04 $data05 $data06 
 if $data00 != 25 then 
   return -1
 endi
 
-sql select count(tbcol1), avg(tbcol1), sum(tbcol1), min(tbcol1), max(tbcol1), first(tbcol1), last(tbcol1) from $mt where ts < now + 4m and tbcol1 = 1 and tbcol2 = 1 and tbcol3 = 1 and tbcol4 = 1 and tbcol5 = 1
+sql select count(tbcol1), avg(tbcol1), sum(tbcol1), min(tbcol1), max(tbcol1), first(tbcol1), last(tbcol1) from $mt where ts < 1626739440001 and tbcol1 = 1 and tbcol2 = 1 and tbcol3 = 1 and tbcol4 = 1 and tbcol5 = 1
 print $data00 $data01 $data02 $data03 $data04 $data05 $data06 
 if $data00 != 25 then 
   return -1
@@ -756,37 +756,37 @@ if $data00 != 100 then
 endi
 
 print =============== step26
-sql select count(tbcol1), avg(tbcol1), sum(tbcol1), min(tbcol1), max(tbcol1), first(tbcol1), last(tbcol1) from $mt where ts < now + 4m group by tgcol2
+sql select count(tbcol1), avg(tbcol1), sum(tbcol1), min(tbcol1), max(tbcol1), first(tbcol1), last(tbcol1) from $mt where ts < 1626739440001 group by tgcol2
 print $data00 $data01 $data02 $data03 $data04 $data05 $data06 
 if $data00 != 25 then 
   return -1
 endi
 
-sql select count(tbcol1), avg(tbcol1), sum(tbcol1), min(tbcol1), max(tbcol1), first(tbcol1), last(tbcol1) from $mt where ts < now + 4m and tbcol1 = 1 group by tgcol2
+sql select count(tbcol1), avg(tbcol1), sum(tbcol1), min(tbcol1), max(tbcol1), first(tbcol1), last(tbcol1) from $mt where ts < 1626739440001 and tbcol1 = 1 group by tgcol2
 print $data00 $data01 $data02 $data03 $data04 $data05 $data06 
 if $data00 != 25 then 
   return -1
 endi
 
-sql select count(tbcol1), avg(tbcol1), sum(tbcol1), min(tbcol1), max(tbcol1), first(tbcol1), last(tbcol1) from $mt where ts < now + 4m and tbcol1 = 1 and tbcol2 = 1  group by tgcol2
+sql select count(tbcol1), avg(tbcol1), sum(tbcol1), min(tbcol1), max(tbcol1), first(tbcol1), last(tbcol1) from $mt where ts < 1626739440001 and tbcol1 = 1 and tbcol2 = 1  group by tgcol2
 print $data00 $data01 $data02 $data03 $data04 $data05 $data06 
 if $data00 != 25 then 
   return -1
 endi
 
-sql select count(tbcol1), avg(tbcol1), sum(tbcol1), min(tbcol1), max(tbcol1), first(tbcol1), last(tbcol1) from $mt where ts < now + 4m and tbcol1 = 1 and tbcol2 = 1 and tbcol3 = 1 group by tgcol2
+sql select count(tbcol1), avg(tbcol1), sum(tbcol1), min(tbcol1), max(tbcol1), first(tbcol1), last(tbcol1) from $mt where ts < 1626739440001 and tbcol1 = 1 and tbcol2 = 1 and tbcol3 = 1 group by tgcol2
 print $data00 $data01 $data02 $data03 $data04 $data05 $data06 
 if $data00 != 25 then 
   return -1
 endi
 
-sql select count(tbcol1), avg(tbcol1), sum(tbcol1), min(tbcol1), max(tbcol1), first(tbcol1), last(tbcol1) from $mt where ts < now + 4m and tbcol1 = 1 and tbcol2 = 1 and tbcol3 = 1 and tbcol4 = 1 group by tgcol2
+sql select count(tbcol1), avg(tbcol1), sum(tbcol1), min(tbcol1), max(tbcol1), first(tbcol1), last(tbcol1) from $mt where ts < 1626739440001 and tbcol1 = 1 and tbcol2 = 1 and tbcol3 = 1 and tbcol4 = 1 group by tgcol2
 print $data00 $data01 $data02 $data03 $data04 $data05 $data06 
 if $data00 != 25 then 
   return -1
 endi
 
-sql select count(tbcol1), avg(tbcol1), sum(tbcol1), min(tbcol1), max(tbcol1), first(tbcol1), last(tbcol1) from $mt where ts < now + 4m and tbcol1 = 1 and tbcol2 = 1 and tbcol3 = 1 and tbcol4 = 1  and tbcol5 = 1 group by tgcol2
+sql select count(tbcol1), avg(tbcol1), sum(tbcol1), min(tbcol1), max(tbcol1), first(tbcol1), last(tbcol1) from $mt where ts < 1626739440001 and tbcol1 = 1 and tbcol2 = 1 and tbcol3 = 1 and tbcol4 = 1  and tbcol5 = 1 group by tgcol2
 print $data00 $data01 $data02 $data03 $data04 $data05 $data06 
 if $data00 != 25 then 
   return -1
diff --git a/tests/script/general/field/6.sim b/tests/script/general/field/6.sim
index a852230cea7fd53f1fbc8e6cd44a67ba137ab3b3..27475d591fc6acaffb4e1f985f59d9a3c8778df5 100644
--- a/tests/script/general/field/6.sim
+++ b/tests/script/general/field/6.sim
@@ -30,7 +30,7 @@ while $i < 5
   $x = 0
   while $x < $rowNum
     $ms = $x . m 
-    sql insert into $tb values (now + $ms , 0, 0, 0, 0, 0, 0 ) 
+    sql insert into $tb values (1626739200000 + $ms , 0, 0, 0, 0, 0, 0 ) 
     $x = $x + 1
   endw  
   $i = $i + 1
@@ -41,7 +41,7 @@ while $i < 10
   $x = 0
   while $x < $rowNum
     $ms = $x . m 
-    sql insert into $tb values (now + $ms , 1, 1, 1, 1, 1, 1  ) 
+    sql insert into $tb values (1626739200000 + $ms , 1, 1, 1, 1, 1, 1  ) 
     $x = $x + 1
   endw  
   $i = $i + 1
@@ -53,19 +53,19 @@ if $rows != $totalNum then
   return -1
 endi
 
-sql select * from $mt where ts < now + 4m
+sql select * from $mt where ts < 1626739440001
 if $rows != 50 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m
+sql select * from $mt where ts > 1626739440001
 if $rows != 150 then 
   return -1
 endi
-sql select * from $mt where ts = now + 4m
+sql select * from $mt where ts = 1626739440001
 if $rows != 0 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and ts < now + 5m
+sql select * from $mt where ts > 1626739440001 and ts < 1626739500001
 if $rows != 10 then 
   return -1
 endi
@@ -195,545 +195,545 @@ if $rows != 100 then
 endi
 
 print =============== step9
-sql select * from $mt where ts > now + 4m and tbcol1 = 1
+sql select * from $mt where ts > 1626739440001 and tbcol1 = 1
 if $rows != 75 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and tbcol1 <> 1
+sql select * from $mt where ts > 1626739440001 and tbcol1 <> 1
 if $rows != 75 then 
   return -1
 endi
-sql select * from $mt where ts < now + 4m and tbcol1 = 0
+sql select * from $mt where ts < 1626739440001 and tbcol1 = 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts < now + 4m and tbcol1 <> 0
+sql select * from $mt where ts < 1626739440001 and tbcol1 <> 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts <= now + 4m and tbcol1 = 0
+sql select * from $mt where ts <= 1626739440001 and tbcol1 = 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts <= now + 4m and tbcol1 <> 0
+sql select * from $mt where ts <= 1626739440001 and tbcol1 <> 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and ts < now + 5m and tbcol1 <> 0
+sql select * from $mt where ts > 1626739440001 and ts < 1626739500001 and tbcol1 <> 0
 if $rows != 5 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and tbcol1 <> 0 and ts < now + 5m
+sql select * from $mt where ts > 1626739440001 and tbcol1 <> 0 and ts < 1626739500001
 if $rows != 5 then 
   return -1
 endi
 
 print =============== step10
-sql select * from $mt where ts > now + 4m and tbcol2 = 1
+sql select * from $mt where ts > 1626739440001 and tbcol2 = 1
 if $rows != 75 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and tbcol2 <> 1
+sql select * from $mt where ts > 1626739440001 and tbcol2 <> 1
 if $rows != 75 then 
   return -1
 endi
-sql select * from $mt where ts < now + 4m and tbcol2 = 0
+sql select * from $mt where ts < 1626739440001 and tbcol2 = 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts < now + 4m and tbcol2 <> 0
+sql select * from $mt where ts < 1626739440001 and tbcol2 <> 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts <= now + 4m and tbcol2 = 0
+sql select * from $mt where ts <= 1626739440001 and tbcol2 = 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts <= now + 4m and tbcol2 <> 0
+sql select * from $mt where ts <= 1626739440001 and tbcol2 <> 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and ts < now + 5m and tbcol2 <> 0
+sql select * from $mt where ts > 1626739440001 and ts < 1626739500001 and tbcol2 <> 0
 if $rows != 5 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and tbcol2 <> 0 and ts < now + 5m
+sql select * from $mt where ts > 1626739440001 and tbcol2 <> 0 and ts < 1626739500001
 if $rows != 5 then 
   return -1
 endi
 
 print =============== step11
-sql select * from $mt where ts > now + 4m and tbcol3 = 1
+sql select * from $mt where ts > 1626739440001 and tbcol3 = 1
 if $rows != 75 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and tbcol3 <> 1
+sql select * from $mt where ts > 1626739440001 and tbcol3 <> 1
 if $rows != 75 then 
   return -1
 endi
-sql select * from $mt where ts < now + 4m and tbcol3 = 0
+sql select * from $mt where ts < 1626739440001 and tbcol3 = 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts < now + 4m and tbcol3 <> 0
+sql select * from $mt where ts < 1626739440001 and tbcol3 <> 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts <= now + 4m and tbcol3 = 0
+sql select * from $mt where ts <= 1626739440001 and tbcol3 = 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts <= now + 4m and tbcol3 <> 0
+sql select * from $mt where ts <= 1626739440001 and tbcol3 <> 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and ts < now + 5m and tbcol3 <> 0
+sql select * from $mt where ts > 1626739440001 and ts < 1626739500001 and tbcol3 <> 0
 if $rows != 5 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and tbcol3 <> 0 and ts < now + 5m
+sql select * from $mt where ts > 1626739440001 and tbcol3 <> 0 and ts < 1626739500001
 if $rows != 5 then 
   return -1
 endi
 
 print =============== step12
-sql select * from $mt where ts > now + 4m and tbcol4 = 1
+sql select * from $mt where ts > 1626739440001 and tbcol4 = 1
 if $rows != 75 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and tbcol4 <> 1
+sql select * from $mt where ts > 1626739440001 and tbcol4 <> 1
 if $rows != 75 then 
   return -1
 endi
-sql select * from $mt where ts < now + 4m and tbcol4 = 0
+sql select * from $mt where ts < 1626739440001 and tbcol4 = 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts < now + 4m and tbcol4 <> 0
+sql select * from $mt where ts < 1626739440001 and tbcol4 <> 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts <= now + 4m and tbcol4 = 0
+sql select * from $mt where ts <= 1626739440001 and tbcol4 = 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts <= now + 4m and tbcol4 <> 0
+sql select * from $mt where ts <= 1626739440001 and tbcol4 <> 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and ts < now + 5m and tbcol4 <> 0
+sql select * from $mt where ts > 1626739440001 and ts < 1626739500001 and tbcol4 <> 0
 if $rows != 5 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and tbcol4 <> 0 and ts < now + 5m
+sql select * from $mt where ts > 1626739440001 and tbcol4 <> 0 and ts < 1626739500001
 if $rows != 5 then 
   return -1
 endi
 
 print =============== step13
-sql select * from $mt where ts > now + 4m and tbcol5 = 1
+sql select * from $mt where ts > 1626739440001 and tbcol5 = 1
 if $rows != 75 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and tbcol5 <> 1
+sql select * from $mt where ts > 1626739440001 and tbcol5 <> 1
 if $rows != 75 then 
   return -1
 endi
-sql select * from $mt where ts < now + 4m and tbcol5 = 0
+sql select * from $mt where ts < 1626739440001 and tbcol5 = 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts < now + 4m and tbcol5 <> 0
+sql select * from $mt where ts < 1626739440001 and tbcol5 <> 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts <= now + 4m and tbcol5 = 0
+sql select * from $mt where ts <= 1626739440001 and tbcol5 = 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts <= now + 4m and tbcol5 <> 0
+sql select * from $mt where ts <= 1626739440001 and tbcol5 <> 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and ts < now + 5m and tbcol5 <> 0
+sql select * from $mt where ts > 1626739440001 and ts < 1626739500001 and tbcol5 <> 0
 if $rows != 5 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and tbcol5 <> 0 and ts < now + 5m
+sql select * from $mt where ts > 1626739440001 and tbcol5 <> 0 and ts < 1626739500001
 if $rows != 5 then 
   return -1
 endi
 
 print =============== step14
-sql select * from $mt where ts > now + 4m and tbcol6 = 1
+sql select * from $mt where ts > 1626739440001 and tbcol6 = 1
 if $rows != 75 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and tbcol6 <> 1
+sql select * from $mt where ts > 1626739440001 and tbcol6 <> 1
 if $rows != 75 then 
   return -1
 endi
-sql select * from $mt where ts < now + 4m and tbcol6 = 0
+sql select * from $mt where ts < 1626739440001 and tbcol6 = 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts < now + 4m and tbcol6 <> 0
+sql select * from $mt where ts < 1626739440001 and tbcol6 <> 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts <= now + 4m and tbcol6 = 0
+sql select * from $mt where ts <= 1626739440001 and tbcol6 = 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts <= now + 4m and tbcol6 <> 0
+sql select * from $mt where ts <= 1626739440001 and tbcol6 <> 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and ts < now + 5m and tbcol6 <> 0
+sql select * from $mt where ts > 1626739440001 and ts < 1626739500001 and tbcol6 <> 0
 if $rows != 5 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and tbcol6 <> 0 and ts < now + 5m
+sql select * from $mt where ts > 1626739440001 and tbcol6 <> 0 and ts < 1626739500001
 if $rows != 5 then 
   return -1
 endi
 
 print =============== step15
-sql select * from $mt where ts > now + 4m and tbcol2 = 1 and tbcol1 = 1
+sql select * from $mt where ts > 1626739440001 and tbcol2 = 1 and tbcol1 = 1
 if $rows != 75 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and tbcol2 <> 1 and tbcol1 <> 1
+sql select * from $mt where ts > 1626739440001 and tbcol2 <> 1 and tbcol1 <> 1
 if $rows != 75 then 
   return -1
 endi
-sql select * from $mt where ts < now + 4m and tbcol2 = 0 and tbcol1 = 0
+sql select * from $mt where ts < 1626739440001 and tbcol2 = 0 and tbcol1 = 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts < now + 4m and tbcol2 <> 0 and tbcol1 <> 0
+sql select * from $mt where ts < 1626739440001 and tbcol2 <> 0 and tbcol1 <> 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts <= now + 4m and tbcol2 = 0 and tbcol1 = 0
+sql select * from $mt where ts <= 1626739440001 and tbcol2 = 0 and tbcol1 = 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts <= now + 4m and tbcol2 <> 0 and tbcol1 <> 0
+sql select * from $mt where ts <= 1626739440001 and tbcol2 <> 0 and tbcol1 <> 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and ts < now + 5m and tbcol2 <> 0 and tbcol1 <> 0
+sql select * from $mt where ts > 1626739440001 and ts < 1626739500001 and tbcol2 <> 0 and tbcol1 <> 0
 if $rows != 5 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and tbcol2 <> 0 and ts < now + 5m and ts < now + 5m and tbcol1 <> 0
+sql select * from $mt where ts > 1626739440001 and tbcol2 <> 0 and ts < 1626739500001 and ts < 1626739500001 and tbcol1 <> 0
 if $rows != 5 then 
   return -1
 endi
 
 print =============== step16
-sql select * from $mt where ts > now + 4m and tbcol3 = 1 and tbcol2 = 1
+sql select * from $mt where ts > 1626739440001 and tbcol3 = 1 and tbcol2 = 1
 if $rows != 75 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and tbcol3 <> 1 and tbcol2 <> 1
+sql select * from $mt where ts > 1626739440001 and tbcol3 <> 1 and tbcol2 <> 1
 if $rows != 75 then 
   return -1
 endi
-sql select * from $mt where ts < now + 4m and tbcol3 = 0 and tbcol2 = 0
+sql select * from $mt where ts < 1626739440001 and tbcol3 = 0 and tbcol2 = 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts < now + 4m and tbcol3 <> 0 and tbcol2 <> 0
+sql select * from $mt where ts < 1626739440001 and tbcol3 <> 0 and tbcol2 <> 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts <= now + 4m and tbcol3 = 0 and tbcol2 = 0
+sql select * from $mt where ts <= 1626739440001 and tbcol3 = 0 and tbcol2 = 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts <= now + 4m and tbcol3 <> 0 and tbcol2 <> 0
+sql select * from $mt where ts <= 1626739440001 and tbcol3 <> 0 and tbcol2 <> 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and ts < now + 5m and tbcol3 <> 0 and tbcol2 <> 0
+sql select * from $mt where ts > 1626739440001 and ts < 1626739500001 and tbcol3 <> 0 and tbcol2 <> 0
 if $rows != 5 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and tbcol3 <> 0 and ts < now + 5m and ts < now + 5m and tbcol2 <> 0
+sql select * from $mt where ts > 1626739440001 and tbcol3 <> 0 and ts < 1626739500001 and ts < 1626739500001 and tbcol2 <> 0
 if $rows != 5 then 
   return -1
 endi
 
 print =============== step17
-sql select * from $mt where ts > now + 4m and tbcol3 = 1 and tbcol4 = 1
+sql select * from $mt where ts > 1626739440001 and tbcol3 = 1 and tbcol4 = 1
 if $rows != 75 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and tbcol3 <> 1 and tbcol4 <> 1
+sql select * from $mt where ts > 1626739440001 and tbcol3 <> 1 and tbcol4 <> 1
 if $rows != 75 then 
   return -1
 endi
-sql select * from $mt where ts < now + 4m and tbcol3 = 0 and tbcol4 = 0
+sql select * from $mt where ts < 1626739440001 and tbcol3 = 0 and tbcol4 = 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts < now + 4m and tbcol3 <> 0 and tbcol4 <> 0
+sql select * from $mt where ts < 1626739440001 and tbcol3 <> 0 and tbcol4 <> 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts <= now + 4m and tbcol3 = 0 and tbcol4 = 0
+sql select * from $mt where ts <= 1626739440001 and tbcol3 = 0 and tbcol4 = 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts <= now + 4m and tbcol3 <> 0 and tbcol4 <> 0
+sql select * from $mt where ts <= 1626739440001 and tbcol3 <> 0 and tbcol4 <> 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and ts < now + 5m and tbcol3 <> 0 and tbcol4 <> 0
+sql select * from $mt where ts > 1626739440001 and ts < 1626739500001 and tbcol3 <> 0 and tbcol4 <> 0
 if $rows != 5 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and tbcol3 <> 0 and ts < now + 5m and ts < now + 5m and tbcol4 <> 0
+sql select * from $mt where ts > 1626739440001 and tbcol3 <> 0 and ts < 1626739500001 and ts < 1626739500001 and tbcol4 <> 0
 if $rows != 5 then 
   return -1
 endi
 
 print =============== step18
-sql select * from $mt where ts > now + 4m and tbcol5 = 1 and tbcol4 = 1
+sql select * from $mt where ts > 1626739440001 and tbcol5 = 1 and tbcol4 = 1
 if $rows != 75 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and tbcol5 <> 1 and tbcol4 <> 1
+sql select * from $mt where ts > 1626739440001 and tbcol5 <> 1 and tbcol4 <> 1
 if $rows != 75 then 
   return -1
 endi
-sql select * from $mt where ts < now + 4m and tbcol5 = 0 and tbcol4 = 0
+sql select * from $mt where ts < 1626739440001 and tbcol5 = 0 and tbcol4 = 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts < now + 4m and tbcol5 <> 0 and tbcol4 <> 0
+sql select * from $mt where ts < 1626739440001 and tbcol5 <> 0 and tbcol4 <> 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts <= now + 4m and tbcol5 = 0 and tbcol4 = 0
+sql select * from $mt where ts <= 1626739440001 and tbcol5 = 0 and tbcol4 = 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts <= now + 4m and tbcol5 <> 0 and tbcol4 <> 0
+sql select * from $mt where ts <= 1626739440001 and tbcol5 <> 0 and tbcol4 <> 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and ts < now + 5m and tbcol5 <> 0 and tbcol4 <> 0
+sql select * from $mt where ts > 1626739440001 and ts < 1626739500001 and tbcol5 <> 0 and tbcol4 <> 0
 if $rows != 5 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and tbcol5 <> 0 and ts < now + 5m and ts < now + 5m and tbcol4 <> 0
+sql select * from $mt where ts > 1626739440001 and tbcol5 <> 0 and ts < 1626739500001 and ts < 1626739500001 and tbcol4 <> 0
 if $rows != 5 then 
   return -1
 endi
 
 print =============== step19
-sql select * from $mt where ts > now + 4m and tbcol5 = 1 and tbcol6 = 1
+sql select * from $mt where ts > 1626739440001 and tbcol5 = 1 and tbcol6 = 1
 if $rows != 75 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and tbcol5 <> 1 and tbcol6 <> 1
+sql select * from $mt where ts > 1626739440001 and tbcol5 <> 1 and tbcol6 <> 1
 if $rows != 75 then 
   return -1
 endi
-sql select * from $mt where ts < now + 4m and tbcol5 = 0 and tbcol6 = 0
+sql select * from $mt where ts < 1626739440001 and tbcol5 = 0 and tbcol6 = 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts < now + 4m and tbcol5 <> 0 and tbcol6 <> 0
+sql select * from $mt where ts < 1626739440001 and tbcol5 <> 0 and tbcol6 <> 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts <= now + 4m and tbcol5 = 0 and tbcol6 = 0
+sql select * from $mt where ts <= 1626739440001 and tbcol5 = 0 and tbcol6 = 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts <= now + 4m and tbcol5 <> 0 and tbcol6 <> 0
+sql select * from $mt where ts <= 1626739440001 and tbcol5 <> 0 and tbcol6 <> 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and ts < now + 5m and tbcol5 <> 0 and tbcol6 <> 0
+sql select * from $mt where ts > 1626739440001 and ts < 1626739500001 and tbcol5 <> 0 and tbcol6 <> 0
 if $rows != 5 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and tbcol5 <> 0 and ts < now + 5m and ts < now + 5m and tbcol6 <> 0
+sql select * from $mt where ts > 1626739440001 and tbcol5 <> 0 and ts < 1626739500001 and ts < 1626739500001 and tbcol6 <> 0
 if $rows != 5 then 
   return -1
 endi
 
 print =============== step20
-sql select * from $mt where ts > now + 4m and tbcol1 = 1 and tbcol2 = 1 and tbcol3 = 1
+sql select * from $mt where ts > 1626739440001 and tbcol1 = 1 and tbcol2 = 1 and tbcol3 = 1
 if $rows != 75 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and tbcol1 <> 1 and tbcol2 <> 1  and tbcol3 <> 1
+sql select * from $mt where ts > 1626739440001 and tbcol1 <> 1 and tbcol2 <> 1  and tbcol3 <> 1
 if $rows != 75 then 
   return -1
 endi
-sql select * from $mt where ts < now + 4m and tbcol1 = 0 and tbcol2 = 0 and tbcol3 = 0
+sql select * from $mt where ts < 1626739440001 and tbcol1 = 0 and tbcol2 = 0 and tbcol3 = 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts < now + 4m and tbcol1 <> 0 and tbcol2 <> 0 and tbcol3 <> 0
+sql select * from $mt where ts < 1626739440001 and tbcol1 <> 0 and tbcol2 <> 0 and tbcol3 <> 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts <= now + 4m and tbcol1 = 0 and tbcol2 = 0 and tbcol3 = 0
+sql select * from $mt where ts <= 1626739440001 and tbcol1 = 0 and tbcol2 = 0 and tbcol3 = 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts <= now + 4m and tbcol1 <> 0 and tbcol2 <> 0 and tbcol3 <> 0
+sql select * from $mt where ts <= 1626739440001 and tbcol1 <> 0 and tbcol2 <> 0 and tbcol3 <> 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and ts < now + 5m and tbcol1 <> 0 and tbcol2 <> 0  and tbcol3 <> 0
+sql select * from $mt where ts > 1626739440001 and ts < 1626739500001 and tbcol1 <> 0 and tbcol2 <> 0  and tbcol3 <> 0
 if $rows != 5 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and tbcol1 <> 0 and ts < now + 5m and ts < now + 5m and tbcol2 <> 0  and tbcol3 <> 0
+sql select * from $mt where ts > 1626739440001 and tbcol1 <> 0 and ts < 1626739500001 and ts < 1626739500001 and tbcol2 <> 0  and tbcol3 <> 0
 if $rows != 5 then 
   return -1
 endi
 
 print =============== step21
-sql select * from $mt where ts > now + 4m and tbcol4 = 1 and tbcol2 = 1 and tbcol3 = 1
+sql select * from $mt where ts > 1626739440001 and tbcol4 = 1 and tbcol2 = 1 and tbcol3 = 1
 if $rows != 75 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and tbcol4 <> 1 and tbcol2 <> 1  and tbcol3 <> 1
+sql select * from $mt where ts > 1626739440001 and tbcol4 <> 1 and tbcol2 <> 1  and tbcol3 <> 1
 if $rows != 75 then 
   return -1
 endi
-sql select * from $mt where ts < now + 4m and tbcol4 = 0 and tbcol2 = 0 and tbcol3 = 0
+sql select * from $mt where ts < 1626739440001 and tbcol4 = 0 and tbcol2 = 0 and tbcol3 = 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts < now + 4m and tbcol4 <> 0 and tbcol2 <> 0 and tbcol3 <> 0
+sql select * from $mt where ts < 1626739440001 and tbcol4 <> 0 and tbcol2 <> 0 and tbcol3 <> 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts <= now + 4m and tbcol4 = 0 and tbcol2 = 0 and tbcol3 = 0
+sql select * from $mt where ts <= 1626739440001 and tbcol4 = 0 and tbcol2 = 0 and tbcol3 = 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts <= now + 4m and tbcol4 <> 0 and tbcol2 <> 0 and tbcol3 <> 0
+sql select * from $mt where ts <= 1626739440001 and tbcol4 <> 0 and tbcol2 <> 0 and tbcol3 <> 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and ts < now + 5m and tbcol4 <> 0 and tbcol2 <> 0  and tbcol3 <> 0
+sql select * from $mt where ts > 1626739440001 and ts < 1626739500001 and tbcol4 <> 0 and tbcol2 <> 0  and tbcol3 <> 0
 if $rows != 5 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and tbcol4 <> 0 and ts < now + 5m and ts < now + 5m and tbcol2 <> 0  and tbcol3 <> 0
+sql select * from $mt where ts > 1626739440001 and tbcol4 <> 0 and ts < 1626739500001 and ts < 1626739500001 and tbcol2 <> 0  and tbcol3 <> 0
 if $rows != 5 then 
   return -1
 endi
 
 print =============== step22
-sql select * from $mt where ts > now + 4m and tbcol4 = 1 and tbcol2 = 1 and tbcol3 = 1 and tbcol1 = 1
+sql select * from $mt where ts > 1626739440001 and tbcol4 = 1 and tbcol2 = 1 and tbcol3 = 1 and tbcol1 = 1
 if $rows != 75 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and tbcol4 <> 1 and tbcol2 <> 1  and tbcol3 <> 1 and tbcol1 <> 1
+sql select * from $mt where ts > 1626739440001 and tbcol4 <> 1 and tbcol2 <> 1  and tbcol3 <> 1 and tbcol1 <> 1
 if $rows != 75 then 
   return -1
 endi
-sql select * from $mt where ts < now + 4m and tbcol4 = 0 and tbcol2 = 0 and tbcol3 = 0 and tbcol1 = 0
+sql select * from $mt where ts < 1626739440001 and tbcol4 = 0 and tbcol2 = 0 and tbcol3 = 0 and tbcol1 = 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts < now + 4m and tbcol4 <> 0 and tbcol2 <> 0 and tbcol3 <> 0 and tbcol1 <> 0
+sql select * from $mt where ts < 1626739440001 and tbcol4 <> 0 and tbcol2 <> 0 and tbcol3 <> 0 and tbcol1 <> 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts <= now + 4m and tbcol4 = 0 and tbcol2 = 0 and tbcol3 = 0 and tbcol1 = 0
+sql select * from $mt where ts <= 1626739440001 and tbcol4 = 0 and tbcol2 = 0 and tbcol3 = 0 and tbcol1 = 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts <= now + 4m and tbcol4 <> 0 and tbcol2 <> 0 and tbcol3 <> 0 and tbcol1 <> 0
+sql select * from $mt where ts <= 1626739440001 and tbcol4 <> 0 and tbcol2 <> 0 and tbcol3 <> 0 and tbcol1 <> 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and ts < now + 5m and tbcol4 <> 0 and tbcol2 <> 0  and tbcol3 <> 0 and tbcol1 <> 0
+sql select * from $mt where ts > 1626739440001 and ts < 1626739500001 and tbcol4 <> 0 and tbcol2 <> 0  and tbcol3 <> 0 and tbcol1 <> 0
 if $rows != 5 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and tbcol4 <> 0 and ts < now + 5m and ts < now + 5m and tbcol2 <> 0  and tbcol3 <> 0 and tbcol1 <> 0
+sql select * from $mt where ts > 1626739440001 and tbcol4 <> 0 and ts < 1626739500001 and ts < 1626739500001 and tbcol2 <> 0  and tbcol3 <> 0 and tbcol1 <> 0
 if $rows != 5 then 
   return -1
 endi
 
 print =============== step23
-sql select * from $mt where ts > now + 4m and tbcol4 = 1 and tbcol2 = 1 and tbcol3 = 1 and tbcol1 = 1 and tbcol5 = 1
+sql select * from $mt where ts > 1626739440001 and tbcol4 = 1 and tbcol2 = 1 and tbcol3 = 1 and tbcol1 = 1 and tbcol5 = 1
 if $rows != 75 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and tbcol4 <> 1 and tbcol2 <> 1  and tbcol3 <> 1 and tbcol1 <> 1 and tbcol5 <> 1
+sql select * from $mt where ts > 1626739440001 and tbcol4 <> 1 and tbcol2 <> 1  and tbcol3 <> 1 and tbcol1 <> 1 and tbcol5 <> 1
 if $rows != 75 then 
   return -1
 endi
-sql select * from $mt where ts < now + 4m and tbcol4 = 0 and tbcol2 = 0 and tbcol3 = 0 and tbcol1 = 0 and tbcol5 = 0
+sql select * from $mt where ts < 1626739440001 and tbcol4 = 0 and tbcol2 = 0 and tbcol3 = 0 and tbcol1 = 0 and tbcol5 = 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts < now + 4m and tbcol4 <> 0 and tbcol2 <> 0 and tbcol3 <> 0 and tbcol1 <> 0 and tbcol5 <> 0
+sql select * from $mt where ts < 1626739440001 and tbcol4 <> 0 and tbcol2 <> 0 and tbcol3 <> 0 and tbcol1 <> 0 and tbcol5 <> 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts <= now + 4m and tbcol4 = 0 and tbcol2 = 0 and tbcol3 = 0 and tbcol1 = 0 and tbcol5 = 0
+sql select * from $mt where ts <= 1626739440001 and tbcol4 = 0 and tbcol2 = 0 and tbcol3 = 0 and tbcol1 = 0 and tbcol5 = 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts <= now + 4m and tbcol4 <> 0 and tbcol2 <> 0 and tbcol3 <> 0 and tbcol1 <> 0 and tbcol5 <> 0
+sql select * from $mt where ts <= 1626739440001 and tbcol4 <> 0 and tbcol2 <> 0 and tbcol3 <> 0 and tbcol1 <> 0 and tbcol5 <> 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and ts < now + 5m and tbcol4 <> 0 and tbcol2 <> 0  and tbcol3 <> 0 and tbcol1 <> 0 and tbcol5 <> 0
+sql select * from $mt where ts > 1626739440001 and ts < 1626739500001 and tbcol4 <> 0 and tbcol2 <> 0  and tbcol3 <> 0 and tbcol1 <> 0 and tbcol5 <> 0
 if $rows != 5 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and tbcol4 <> 0 and ts < now + 5m and ts < now + 5m and tbcol2 <> 0  and tbcol3 <> 0 and tbcol1 <> 0 and tbcol5 <> 0
+sql select * from $mt where ts > 1626739440001 and tbcol4 <> 0 and ts < 1626739500001 and ts < 1626739500001 and tbcol2 <> 0  and tbcol3 <> 0 and tbcol1 <> 0 and tbcol5 <> 0
 if $rows != 5 then 
   return -1
 endi
 
 print =============== step24
-sql select * from $mt where ts > now + 4m and tbcol4 = 1 and tbcol2 = 1 and tbcol3 = 1 and tbcol1 = 1 and tbcol5 = 1 and tbcol6 = 1
+sql select * from $mt where ts > 1626739440001 and tbcol4 = 1 and tbcol2 = 1 and tbcol3 = 1 and tbcol1 = 1 and tbcol5 = 1 and tbcol6 = 1
 if $rows != 75 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and tbcol4 <> 1 and tbcol2 <> 1  and tbcol3 <> 1 and tbcol1 <> 1 and tbcol5 <> 1 and tbcol6 <> 1
+sql select * from $mt where ts > 1626739440001 and tbcol4 <> 1 and tbcol2 <> 1  and tbcol3 <> 1 and tbcol1 <> 1 and tbcol5 <> 1 and tbcol6 <> 1
 if $rows != 75 then 
   return -1
 endi
-sql select * from $mt where ts < now + 4m and tbcol4 = 0 and tbcol2 = 0 and tbcol3 = 0 and tbcol1 = 0 and tbcol5 = 0 and tbcol6 = 0
+sql select * from $mt where ts < 1626739440001 and tbcol4 = 0 and tbcol2 = 0 and tbcol3 = 0 and tbcol1 = 0 and tbcol5 = 0 and tbcol6 = 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts < now + 4m and tbcol4 <> 0 and tbcol2 <> 0 and tbcol3 <> 0 and tbcol1 <> 0 and tbcol5 <> 0 and tbcol6 <> 0
+sql select * from $mt where ts < 1626739440001 and tbcol4 <> 0 and tbcol2 <> 0 and tbcol3 <> 0 and tbcol1 <> 0 and tbcol5 <> 0 and tbcol6 <> 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts <= now + 4m and tbcol4 = 0 and tbcol2 = 0 and tbcol3 = 0 and tbcol1 = 0 and tbcol5 = 0 and tbcol6 = 0
+sql select * from $mt where ts <= 1626739440001 and tbcol4 = 0 and tbcol2 = 0 and tbcol3 = 0 and tbcol1 = 0 and tbcol5 = 0 and tbcol6 = 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts <= now + 4m and tbcol4 <> 0 and tbcol2 <> 0 and tbcol3 <> 0 and tbcol1 <> 0 and tbcol5 <> 0 and tbcol6 <> 0
+sql select * from $mt where ts <= 1626739440001 and tbcol4 <> 0 and tbcol2 <> 0 and tbcol3 <> 0 and tbcol1 <> 0 and tbcol5 <> 0 and tbcol6 <> 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and ts < now + 5m and tbcol4 <> 0 and tbcol2 <> 0  and tbcol3 <> 0 and tbcol1 <> 0 and tbcol5 <> 0 and tbcol6 <> 0
+sql select * from $mt where ts > 1626739440001 and ts < 1626739500001 and tbcol4 <> 0 and tbcol2 <> 0  and tbcol3 <> 0 and tbcol1 <> 0 and tbcol5 <> 0 and tbcol6 <> 0
 if $rows != 5 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and tbcol4 <> 0 and ts < now + 5m and ts < now + 5m and tbcol2 <> 0  and tbcol3 <> 0 and tbcol1 <> 0 and tbcol5 <> 0 and tbcol6 <> 0
+sql select * from $mt where ts > 1626739440001 and tbcol4 <> 0 and ts < 1626739500001 and ts < 1626739500001 and tbcol2 <> 0  and tbcol3 <> 0 and tbcol1 <> 0 and tbcol5 <> 0 and tbcol6 <> 0
 if $rows != 5 then 
   return -1
 endi
@@ -783,43 +783,43 @@ if $data00 != 100 then
 endi
 
 print =============== step27
-sql select count(tbcol1), avg(tbcol1), sum(tbcol1), min(tbcol1), max(tbcol1), first(tbcol1), last(tbcol1) from $mt where ts < now + 4m
+sql select count(tbcol1), avg(tbcol1), sum(tbcol1), min(tbcol1), max(tbcol1), first(tbcol1), last(tbcol1) from $mt where ts < 1626739440001
 print $data00 $data01 $data02 $data03 $data04 $data05 $data06 
 if $data00 != 50 then 
   return -1
 endi
 
-sql select count(tbcol1), avg(tbcol1), sum(tbcol1), min(tbcol1), max(tbcol1), first(tbcol1), last(tbcol1) from $mt where ts < now + 4m and tbcol1 = 1
+sql select count(tbcol1), avg(tbcol1), sum(tbcol1), min(tbcol1), max(tbcol1), first(tbcol1), last(tbcol1) from $mt where ts < 1626739440001 and tbcol1 = 1
 print $data00 $data01 $data02 $data03 $data04 $data05 $data06 
 if $data00 != 25 then 
   return -1
 endi
 
-sql select count(tbcol1), avg(tbcol1), sum(tbcol1), min(tbcol1), max(tbcol1), first(tbcol1), last(tbcol1) from $mt where ts < now + 4m and tbcol1 = 1 and tbcol2 = 1 
+sql select count(tbcol1), avg(tbcol1), sum(tbcol1), min(tbcol1), max(tbcol1), first(tbcol1), last(tbcol1) from $mt where ts < 1626739440001 and tbcol1 = 1 and tbcol2 = 1 
 print $data00 $data01 $data02 $data03 $data04 $data05 $data06 
 if $data00 != 25 then 
   return -1
 endi
 
-sql select count(tbcol1), avg(tbcol1), sum(tbcol1), min(tbcol1), max(tbcol1), first(tbcol1), last(tbcol1) from $mt where ts < now + 4m and tbcol1 = 1 and tbcol2 = 1 and tbcol3 = 1
+sql select count(tbcol1), avg(tbcol1), sum(tbcol1), min(tbcol1), max(tbcol1), first(tbcol1), last(tbcol1) from $mt where ts < 1626739440001 and tbcol1 = 1 and tbcol2 = 1 and tbcol3 = 1
 print $data00 $data01 $data02 $data03 $data04 $data05 $data06 
 if $data00 != 25 then 
   return -1
 endi
 
-sql select count(tbcol1), avg(tbcol1), sum(tbcol1), min(tbcol1), max(tbcol1), first(tbcol1), last(tbcol1) from $mt where ts < now + 4m and tbcol1 = 1 and tbcol2 = 1 and tbcol3 = 1 and tbcol4 = 1
+sql select count(tbcol1), avg(tbcol1), sum(tbcol1), min(tbcol1), max(tbcol1), first(tbcol1), last(tbcol1) from $mt where ts < 1626739440001 and tbcol1 = 1 and tbcol2 = 1 and tbcol3 = 1 and tbcol4 = 1
 print $data00 $data01 $data02 $data03 $data04 $data05 $data06 
 if $data00 != 25 then 
   return -1
 endi
 
-sql select count(tbcol1), avg(tbcol1), sum(tbcol1), min(tbcol1), max(tbcol1), first(tbcol1), last(tbcol1) from $mt where ts < now + 4m and tbcol1 = 1 and tbcol2 = 1 and tbcol3 = 1 and tbcol4 = 1 and tbcol5 = 1
+sql select count(tbcol1), avg(tbcol1), sum(tbcol1), min(tbcol1), max(tbcol1), first(tbcol1), last(tbcol1) from $mt where ts < 1626739440001 and tbcol1 = 1 and tbcol2 = 1 and tbcol3 = 1 and tbcol4 = 1 and tbcol5 = 1
 print $data00 $data01 $data02 $data03 $data04 $data05 $data06 
 if $data00 != 25 then 
   return -1
 endi
 
-sql select count(tbcol1), avg(tbcol1), sum(tbcol1), min(tbcol1), max(tbcol1), first(tbcol1), last(tbcol1) from $mt where ts < now + 4m and tbcol1 = 1 and tbcol2 = 1 and tbcol3 = 1 and tbcol4 = 1 and tbcol5 = 1 and tbcol6 = 1
+sql select count(tbcol1), avg(tbcol1), sum(tbcol1), min(tbcol1), max(tbcol1), first(tbcol1), last(tbcol1) from $mt where ts < 1626739440001 and tbcol1 = 1 and tbcol2 = 1 and tbcol3 = 1 and tbcol4 = 1 and tbcol5 = 1 and tbcol6 = 1
 print $data00 $data01 $data02 $data03 $data04 $data05 $data06 
 if $data00 != 25 then 
   return -1
@@ -900,43 +900,43 @@ if $data00 != 100 then
 endi
 
 print =============== step30
-sql select count(tbcol1), avg(tbcol1), sum(tbcol1), min(tbcol1), max(tbcol1), first(tbcol1), last(tbcol1) from $mt where ts < now + 4m group by tgcol2
+sql select count(tbcol1), avg(tbcol1), sum(tbcol1), min(tbcol1), max(tbcol1), first(tbcol1), last(tbcol1) from $mt where ts < 1626739440001 group by tgcol2
 print $data00 $data01 $data02 $data03 $data04 $data05 $data06 
 if $data00 != 25 then 
   return -1
 endi
 
-sql select count(tbcol1), avg(tbcol1), sum(tbcol1), min(tbcol1), max(tbcol1), first(tbcol1), last(tbcol1) from $mt where ts < now + 4m and tbcol1 = 1 group by tgcol2
+sql select count(tbcol1), avg(tbcol1), sum(tbcol1), min(tbcol1), max(tbcol1), first(tbcol1), last(tbcol1) from $mt where ts < 1626739440001 and tbcol1 = 1 group by tgcol2
 print $data00 $data01 $data02 $data03 $data04 $data05 $data06 
 if $data00 != 25 then 
   return -1
 endi
 
-sql select count(tbcol1), avg(tbcol1), sum(tbcol1), min(tbcol1), max(tbcol1), first(tbcol1), last(tbcol1) from $mt where ts < now + 4m and tbcol1 = 1 and tbcol2 = 1  group by tgcol2
+sql select count(tbcol1), avg(tbcol1), sum(tbcol1), min(tbcol1), max(tbcol1), first(tbcol1), last(tbcol1) from $mt where ts < 1626739440001 and tbcol1 = 1 and tbcol2 = 1  group by tgcol2
 print $data00 $data01 $data02 $data03 $data04 $data05 $data06 
 if $data00 != 25 then 
   return -1
 endi
 
-sql select count(tbcol1), avg(tbcol1), sum(tbcol1), min(tbcol1), max(tbcol1), first(tbcol1), last(tbcol1) from $mt where ts < now + 4m and tbcol1 = 1 and tbcol2 = 1 and tbcol3 = 1 group by tgcol2
+sql select count(tbcol1), avg(tbcol1), sum(tbcol1), min(tbcol1), max(tbcol1), first(tbcol1), last(tbcol1) from $mt where ts < 1626739440001 and tbcol1 = 1 and tbcol2 = 1 and tbcol3 = 1 group by tgcol2
 print $data00 $data01 $data02 $data03 $data04 $data05 $data06 
 if $data00 != 25 then 
   return -1
 endi
 
-sql select count(tbcol1), avg(tbcol1), sum(tbcol1), min(tbcol1), max(tbcol1), first(tbcol1), last(tbcol1) from $mt where ts < now + 4m and tbcol1 = 1 and tbcol2 = 1 and tbcol3 = 1 and tbcol4 = 1 group by tgcol2
+sql select count(tbcol1), avg(tbcol1), sum(tbcol1), min(tbcol1), max(tbcol1), first(tbcol1), last(tbcol1) from $mt where ts < 1626739440001 and tbcol1 = 1 and tbcol2 = 1 and tbcol3 = 1 and tbcol4 = 1 group by tgcol2
 print $data00 $data01 $data02 $data03 $data04 $data05 $data06 
 if $data00 != 25 then 
   return -1
 endi
 
-sql select count(tbcol1), avg(tbcol1), sum(tbcol1), min(tbcol1), max(tbcol1), first(tbcol1), last(tbcol1) from $mt where ts < now + 4m and tbcol1 = 1 and tbcol2 = 1 and tbcol3 = 1 and tbcol4 = 1  and tbcol5 = 1 group by tgcol2
+sql select count(tbcol1), avg(tbcol1), sum(tbcol1), min(tbcol1), max(tbcol1), first(tbcol1), last(tbcol1) from $mt where ts < 1626739440001 and tbcol1 = 1 and tbcol2 = 1 and tbcol3 = 1 and tbcol4 = 1  and tbcol5 = 1 group by tgcol2
 print $data00 $data01 $data02 $data03 $data04 $data05 $data06 
 if $data00 != 25 then 
   return -1
 endi
 
-sql select count(tbcol1), avg(tbcol1), sum(tbcol1), min(tbcol1), max(tbcol1), first(tbcol1), last(tbcol1) from $mt where ts < now + 4m and tbcol1 = 1 and tbcol2 = 1 and tbcol3 = 1 and tbcol4 = 1  and tbcol5 = 1 and tbcol6 = 1 group by tgcol2
+sql select count(tbcol1), avg(tbcol1), sum(tbcol1), min(tbcol1), max(tbcol1), first(tbcol1), last(tbcol1) from $mt where ts < 1626739440001 and tbcol1 = 1 and tbcol2 = 1 and tbcol3 = 1 and tbcol4 = 1  and tbcol5 = 1 and tbcol6 = 1 group by tgcol2
 print $data00 $data01 $data02 $data03 $data04 $data05 $data06 
 if $data00 != 25 then 
   return -1
diff --git a/tests/script/general/field/bigint.sim b/tests/script/general/field/bigint.sim
index 538f966c49cc3eefb8516c4bac4a49b9efd78d37..cfe8c561f0d852133267f7dd597f7796aee951f0 100644
--- a/tests/script/general/field/bigint.sim
+++ b/tests/script/general/field/bigint.sim
@@ -30,7 +30,7 @@ while $i < 5
   $x = 0
   while $x < $rowNum
     $ms = $x . m 
-    sql insert into $tb values (now + $ms , 0 ) 
+    sql insert into $tb values (1626739200000 + $ms , 0 ) 
     $x = $x + 1
   endw  
   $i = $i + 1
@@ -41,7 +41,7 @@ while $i < 10
   $x = 0
   while $x < $rowNum
     $ms = $x . m 
-    sql insert into $tb values (now + $ms , 1 ) 
+    sql insert into $tb values (1626739200000 + $ms , 1 ) 
     $x = $x + 1
   endw  
   $i = $i + 1
@@ -82,35 +82,35 @@ if $rows != 100 then
 endi
 
 print =============== step3
-sql select * from $mt where ts > now + 4m and tbcol = 1
+sql select * from $mt where ts > 1626739440001 and tbcol = 1
 if $rows != 75 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and tbcol <> 1
+sql select * from $mt where ts > 1626739440001 and tbcol <> 1
 if $rows != 75 then 
   return -1
 endi
-sql select * from $mt where ts < now + 4m and tbcol = 0
+sql select * from $mt where ts < 1626739440001 and tbcol = 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts < now + 4m and tbcol <> 0
+sql select * from $mt where ts < 1626739440001 and tbcol <> 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts <= now + 4m and tbcol = 0
+sql select * from $mt where ts <= 1626739440001 and tbcol = 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts <= now + 4m and tbcol <> 0
+sql select * from $mt where ts <= 1626739440001 and tbcol <> 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and ts < now + 5m and tbcol <> 0
+sql select * from $mt where ts > 1626739440001 and ts < 1626739500001 and tbcol <> 0
 if $rows != 5 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and tbcol <> 0 and ts < now + 5m
+sql select * from $mt where ts > 1626739440001 and tbcol <> 0 and ts < 1626739500001
 if $rows != 5 then 
   return -1
 endi
@@ -139,7 +139,7 @@ if $data00 != 100 then
 endi
 
 print =============== step7
-sql select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from $mt where ts < now + 4m and tbcol = 1 group by tgcol
+sql select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from $mt where ts < 1626739440001 and tbcol = 1 group by tgcol
 print $data00 $data01 $data02 $data03 $data04 $data05 $data06 
 if $data00 != 25 then 
   return -1
diff --git a/tests/script/general/field/binary.sim b/tests/script/general/field/binary.sim
index d601750b0d96b94bd60751de62c7fd139e1882be..821dbc9a82f7d8e6e21be419d6c28a7b67f1271d 100644
--- a/tests/script/general/field/binary.sim
+++ b/tests/script/general/field/binary.sim
@@ -30,7 +30,7 @@ while $i < 5
   $x = 0
   while $x < $rowNum
     $ms = $x . m 
-    sql insert into $tb values (now + $ms , '0' ) 
+    sql insert into $tb values (1626739200000 + $ms , '0' ) 
     $x = $x + 1
   endw  
   $i = $i + 1
@@ -41,7 +41,7 @@ while $i < 10
   $x = 0
   while $x < $rowNum
     $ms = $x . m 
-    sql insert into $tb values (now + $ms , '1' ) 
+    sql insert into $tb values (1626739200000 + $ms , '1' ) 
     $x = $x + 1
   endw  
   $i = $i + 1
@@ -55,14 +55,14 @@ if $rows != 100 then
   return -1
 endi
 
-sql select * from $mt where ts > now + 4m and tbcol = '1'
+sql select * from $mt where ts > 1626739440001 and tbcol = '1'
 if $rows != 75 then
   return -1
 endi
 
 print select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from $mt where tbcol = '1'
 sql_error select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from $mt where tbcol = '1' group by tgcol 
-sql_error select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from $mt where ts < now + 4m and tbcol = '1' group by tgcol 
+sql_error select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from $mt where ts < 1626739440001 and tbcol = '1' group by tgcol 
 sql_error select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from $mt where tbcol = '1' interval(1d) group by tgcol 
 
 #can't filter binary fields
diff --git a/tests/script/general/field/bool.sim b/tests/script/general/field/bool.sim
index 796ed4e0aaa4c1b0b61462ef95ffaf98a671f2ed..d94071b3282613a51c7580fc23f0bdc700cea03f 100644
--- a/tests/script/general/field/bool.sim
+++ b/tests/script/general/field/bool.sim
@@ -30,7 +30,7 @@ while $i < 5
   $x = 0
   while $x < $rowNum
     $ms = $x . m 
-    sql insert into $tb values (now + $ms , 0 ) 
+    sql insert into $tb values (1626739200000 + $ms , 0 ) 
     $x = $x + 1
   endw  
   $i = $i + 1
@@ -41,7 +41,7 @@ while $i < 10
   $x = 0
   while $x < $rowNum
     $ms = $x . m 
-    sql insert into $tb values (now + $ms , 1 ) 
+    sql insert into $tb values (1626739200000 + $ms , 1 ) 
     $x = $x + 1
   endw  
   $i = $i + 1
@@ -82,35 +82,35 @@ if $rows != 100 then
 endi
 
 print =============== step3
-sql select * from $mt where ts > now + 4m and tbcol = true
+sql select * from $mt where ts > 1626739440001 and tbcol = true
 if $rows != 75 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and tbcol <> true
+sql select * from $mt where ts > 1626739440001 and tbcol <> true
 if $rows != 75 then 
   return -1
 endi
-sql select * from $mt where ts < now + 4m and tbcol = false
+sql select * from $mt where ts < 1626739440001 and tbcol = false
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts < now + 4m and tbcol <> false
+sql select * from $mt where ts < 1626739440001 and tbcol <> false
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts <= now + 4m and tbcol = false
+sql select * from $mt where ts <= 1626739440001 and tbcol = false
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts <= now + 4m and tbcol <> false
+sql select * from $mt where ts <= 1626739440001 and tbcol <> false
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and ts < now + 5m and tbcol <> false
+sql select * from $mt where ts > 1626739440001 and ts < 1626739500001 and tbcol <> false
 if $rows != 5 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and tbcol <> false and ts < now + 5m
+sql select * from $mt where ts > 1626739440001 and tbcol <> false and ts < 1626739500001
 if $rows != 5 then 
   return -1
 endi
@@ -137,7 +137,7 @@ if $data00 != 100 then
 endi
 
 print =============== step7
-sql select count(tbcol), first(tbcol), last(tbcol) from $mt where ts < now + 4m and tbcol = true group by tgcol
+sql select count(tbcol), first(tbcol), last(tbcol) from $mt where ts < 1626739440001 and tbcol = true group by tgcol
 print $data00 $data01 $data02 $data03 $data04 $data05 $data06 
 if $data00 != 25 then 
   return -1
diff --git a/tests/script/general/field/double.sim b/tests/script/general/field/double.sim
index ef86585e5f69fdd63c417ef823a57f3502436e40..0c9c23e3047466da264fd2ac3b2624ff22a5d0b0 100644
--- a/tests/script/general/field/double.sim
+++ b/tests/script/general/field/double.sim
@@ -30,7 +30,7 @@ while $i < 5
   $x = 0
   while $x < $rowNum
     $ms = $x . m 
-    sql insert into $tb values (now + $ms , 0 ) 
+    sql insert into $tb values (1626739200000 + $ms , 0 ) 
     $x = $x + 1
   endw  
   $i = $i + 1
@@ -41,7 +41,7 @@ while $i < 10
   $x = 0
   while $x < $rowNum
     $ms = $x . m 
-    sql insert into $tb values (now + $ms , 1 ) 
+    sql insert into $tb values (1626739200000 + $ms , 1 ) 
     $x = $x + 1
   endw  
   $i = $i + 1
@@ -82,35 +82,35 @@ if $rows != 100 then
 endi
 
 print =============== step3
-sql select * from $mt where ts > now + 4m and tbcol = 1
+sql select * from $mt where ts > 1626739440001 and tbcol = 1
 if $rows != 75 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and tbcol <> 1
+sql select * from $mt where ts > 1626739440001 and tbcol <> 1
 if $rows != 75 then 
   return -1
 endi
-sql select * from $mt where ts < now + 4m and tbcol = 0
+sql select * from $mt where ts < 1626739440001 and tbcol = 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts < now + 4m and tbcol <> 0
+sql select * from $mt where ts < 1626739440001 and tbcol <> 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts <= now + 4m and tbcol = 0
+sql select * from $mt where ts <= 1626739440001 and tbcol = 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts <= now + 4m and tbcol <> 0
+sql select * from $mt where ts <= 1626739440001 and tbcol <> 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and ts < now + 5m and tbcol <> 0
+sql select * from $mt where ts > 1626739440001 and ts < 1626739500001 and tbcol <> 0
 if $rows != 5 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and tbcol <> 0 and ts < now + 5m
+sql select * from $mt where ts > 1626739440001 and tbcol <> 0 and ts < 1626739500001
 if $rows != 5 then 
   return -1
 endi
@@ -137,7 +137,7 @@ if $data00 != 100 then
 endi
 
 print =============== step7
-sql select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from $mt where ts < now + 4m and tbcol = 1 group by tgcol
+sql select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from $mt where ts < 1626739440001 and tbcol = 1 group by tgcol
 print $data00 $data01 $data02 $data03 $data04 $data05 $data06 
 if $data00 != 25 then 
   return -1
diff --git a/tests/script/general/field/float.sim b/tests/script/general/field/float.sim
index a01bcbdd4ca2a7a7b7009ded641cd88357fbcc07..00423c00b8515bafb7974604e1211c15868512d7 100644
--- a/tests/script/general/field/float.sim
+++ b/tests/script/general/field/float.sim
@@ -30,7 +30,7 @@ while $i < 5
   $x = 0
   while $x < $rowNum
     $ms = $x . m 
-    sql insert into $tb values (now + $ms , 0 ) 
+    sql insert into $tb values (1626739200000 + $ms , 0 ) 
     $x = $x + 1
   endw  
   $i = $i + 1
@@ -41,7 +41,7 @@ while $i < 10
   $x = 0
   while $x < $rowNum
     $ms = $x . m 
-    sql insert into $tb values (now + $ms , 1 ) 
+    sql insert into $tb values (1626739200000 + $ms , 1 ) 
     $x = $x + 1
   endw  
   $i = $i + 1
@@ -82,35 +82,35 @@ if $rows != 100 then
 endi
 
 print =============== step3
-sql select * from $mt where ts > now + 4m and tbcol = 1
+sql select * from $mt where ts > 1626739440001 and tbcol = 1
 if $rows != 75 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and tbcol <> 1
+sql select * from $mt where ts > 1626739440001 and tbcol <> 1
 if $rows != 75 then 
   return -1
 endi
-sql select * from $mt where ts < now + 4m and tbcol = 0
+sql select * from $mt where ts < 1626739440001 and tbcol = 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts < now + 4m and tbcol <> 0
+sql select * from $mt where ts < 1626739440001 and tbcol <> 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts <= now + 4m and tbcol = 0
+sql select * from $mt where ts <= 1626739440001 and tbcol = 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts <= now + 4m and tbcol <> 0
+sql select * from $mt where ts <= 1626739440001 and tbcol <> 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and ts < now + 5m and tbcol <> 0
+sql select * from $mt where ts > 1626739440001 and ts < 1626739500001 and tbcol <> 0
 if $rows != 5 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and tbcol <> 0 and ts < now + 5m
+sql select * from $mt where ts > 1626739440001 and tbcol <> 0 and ts < 1626739500001
 if $rows != 5 then 
   return -1
 endi
@@ -137,7 +137,7 @@ if $data00 != 100 then
 endi
 
 print =============== step7
-sql select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from $mt where ts < now + 4m and tbcol = 1 group by tgcol
+sql select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from $mt where ts < 1626739440001 and tbcol = 1 group by tgcol
 print $data00 $data01 $data02 $data03 $data04 $data05 $data06 
 if $data00 != 25 then 
   return -1
diff --git a/tests/script/general/field/int.sim b/tests/script/general/field/int.sim
index c04fe5d2b1d4cc2d43de0111d3e22dcd177fa8fc..0e322e4f120d6eef933023467d1246a127780529 100644
--- a/tests/script/general/field/int.sim
+++ b/tests/script/general/field/int.sim
@@ -30,7 +30,7 @@ while $i < 5
   $x = 0
   while $x < $rowNum
     $ms = $x . m 
-    sql insert into $tb values (now + $ms , 0 ) 
+    sql insert into $tb values (1626739200000 + $ms , 0 ) 
     $x = $x + 1
   endw  
   $i = $i + 1
@@ -41,7 +41,7 @@ while $i < 10
   $x = 0
   while $x < $rowNum
     $ms = $x . m 
-    sql insert into $tb values (now + $ms , 1 ) 
+    sql insert into $tb values (1626739200000 + $ms , 1 ) 
     $x = $x + 1
   endw  
   $i = $i + 1
@@ -82,35 +82,35 @@ if $rows != 100 then
 endi
 
 print =============== step3
-sql select * from $mt where ts > now + 4m and tbcol = 1
+sql select * from $mt where ts > 1626739440001 and tbcol = 1
 if $rows != 75 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and tbcol <> 1
+sql select * from $mt where ts > 1626739440001 and tbcol <> 1
 if $rows != 75 then 
   return -1
 endi
-sql select * from $mt where ts < now + 4m and tbcol = 0
+sql select * from $mt where ts < 1626739440001 and tbcol = 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts < now + 4m and tbcol <> 0
+sql select * from $mt where ts < 1626739440001 and tbcol <> 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts <= now + 4m and tbcol = 0
+sql select * from $mt where ts <= 1626739440001 and tbcol = 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts <= now + 4m and tbcol <> 0
+sql select * from $mt where ts <= 1626739440001 and tbcol <> 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and ts < now + 5m and tbcol <> 0
+sql select * from $mt where ts > 1626739440001 and ts < 1626739500001 and tbcol <> 0
 if $rows != 5 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and tbcol <> 0 and ts < now + 5m
+sql select * from $mt where ts > 1626739440001 and tbcol <> 0 and ts < 1626739500001
 if $rows != 5 then 
   return -1
 endi
@@ -137,7 +137,7 @@ if $data00 != 100 then
 endi
 
 print =============== step7
-sql select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from $mt where ts < now + 4m and tbcol = 1 group by tgcol
+sql select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from $mt where ts < 1626739440001 and tbcol = 1 group by tgcol
 print $data00 $data01 $data02 $data03 $data04 $data05 $data06 
 if $data00 != 25 then 
   return -1
diff --git a/tests/script/general/field/single.sim b/tests/script/general/field/single.sim
index 0cfb92aad5c795e14a304146419a97157176c3ac..3f6bf4309fac7ce45577094f3316c34edcd954c1 100644
--- a/tests/script/general/field/single.sim
+++ b/tests/script/general/field/single.sim
@@ -25,7 +25,7 @@ sql create table $tb (ts timestamp, tbcol int)
   $x = 0
   while $x < $rowNum
     $ms = $x . m 
-    sql insert into $tb values (now + $ms , $x ) 
+    sql insert into $tb values (1626739200000 + $ms , $x ) 
     $x = $x + 1
   endw  
  
@@ -111,18 +111,18 @@ if $rows != 0 then
 endi
 
 print =============== step3
-sql select * from $tb where ts < now + 4m
+sql select * from $tb where ts < 1626739440001
 if $rows != 5 then 
   return -1
 endi
 
-sql select * from $tb where tbcol = 10 and ts < now + 4m
-print  select * from $tb where tbcol = 10 and ts < now + 4m
+sql select * from $tb where tbcol = 10 and ts < 1626739440001
+print  select * from $tb where tbcol = 10 and ts < 1626739440001
 if $rows != 0 then 
   return -1
 endi
 
-sql select * from $tb where tbcol = 4 and ts < now + 4m order by ts desc
+sql select * from $tb where tbcol = 4 and ts < 1626739440001 order by ts desc
 if $rows != 1 then 
   return -1
 endi
@@ -130,7 +130,7 @@ if $data01 != 4 then
   return -1
 endi
 
-sql select * from $tb where tbcol < 10  and ts < now + 4m order by ts desc
+sql select * from $tb where tbcol < 10  and ts < 1626739440001 order by ts desc
 if $rows != 5 then 
   return -1
 endi
@@ -138,7 +138,7 @@ if $data01 != 4 then
   return -1
 endi
 
-sql select * from $tb where tbcol < 10 and ts > now + 4m and ts < now + 5m order by ts desc
+sql select * from $tb where tbcol < 10 and ts > 1626739440001 and ts < 1626739500001 order by ts desc
 print $rows $data00 $data01
 if $rows != 1 then 
   return -1
@@ -183,27 +183,27 @@ sql select count(*) from $tb where tbcol < 10 and tbcol > 5 order by ts asc -x s
 step4:
 
 print =============== step5
-sql select count(*) from $tb where ts < now + 4m
+sql select count(*) from $tb where ts < 1626739440001
 if $data00 != 5 then 
   return -1
 endi
 
-#sql select count(*) from $tb where tbcol = 10 and ts < now + 4m
+#sql select count(*) from $tb where tbcol = 10 and ts < 1626739440001
 #if $data00 != 0 then 
 #  return -1
 #endi
 
-sql select count(*) from $tb where tbcol = 4 and ts < now + 4m
+sql select count(*) from $tb where tbcol = 4 and ts < 1626739440001
 if $data00 != 1 then 
   return -1
 endi
 
-sql select count(*) from $tb where tbcol < 10  and ts < now + 4m
+sql select count(*) from $tb where tbcol < 10  and ts < 1626739440001
 if $data00 != 5 then 
   return -1
 endi
 
-sql select count(*) from $tb where tbcol < 10 and ts > now + 4m and ts < now + 5m
+sql select count(*) from $tb where tbcol < 10 and ts > 1626739440001 and ts < 1626739500001
 if $data00 != 1 then 
   return -1
 endi
diff --git a/tests/script/general/field/smallint.sim b/tests/script/general/field/smallint.sim
index 1d5566812efcd8e59ccc339e53577246c61c7a63..78b2b998cfa56f368b1480716dabe8be38a45b9a 100644
--- a/tests/script/general/field/smallint.sim
+++ b/tests/script/general/field/smallint.sim
@@ -30,7 +30,7 @@ while $i < 5
   $x = 0
   while $x < $rowNum
     $ms = $x . m 
-    sql insert into $tb values (now + $ms , 0 ) 
+    sql insert into $tb values (1626739200000 + $ms , 0 ) 
     $x = $x + 1
   endw  
   $i = $i + 1
@@ -41,7 +41,7 @@ while $i < 10
   $x = 0
   while $x < $rowNum
     $ms = $x . m 
-    sql insert into $tb values (now + $ms , 1 ) 
+    sql insert into $tb values (1626739200000 + $ms , 1 ) 
     $x = $x + 1
   endw  
   $i = $i + 1
@@ -82,35 +82,35 @@ if $rows != 100 then
 endi
 
 print =============== step3
-sql select * from $mt where ts > now + 4m and tbcol = 1
+sql select * from $mt where ts > 1626739440001 and tbcol = 1
 if $rows != 75 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and tbcol <> 1
+sql select * from $mt where ts > 1626739440001 and tbcol <> 1
 if $rows != 75 then 
   return -1
 endi
-sql select * from $mt where ts < now + 4m and tbcol = 0
+sql select * from $mt where ts < 1626739440001 and tbcol = 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts < now + 4m and tbcol <> 0
+sql select * from $mt where ts < 1626739440001 and tbcol <> 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts <= now + 4m and tbcol = 0
+sql select * from $mt where ts <= 1626739440001 and tbcol = 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts <= now + 4m and tbcol <> 0
+sql select * from $mt where ts <= 1626739440001 and tbcol <> 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and ts < now + 5m and tbcol <> 0
+sql select * from $mt where ts > 1626739440001 and ts < 1626739500001 and tbcol <> 0
 if $rows != 5 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and tbcol <> 0 and ts < now + 5m
+sql select * from $mt where ts > 1626739440001 and tbcol <> 0 and ts < 1626739500001
 if $rows != 5 then 
   return -1
 endi
@@ -137,7 +137,7 @@ if $data00 != 100 then
 endi
 
 print =============== step7
-sql select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from $mt where ts < now + 4m and tbcol = 1 group by tgcol
+sql select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from $mt where ts < 1626739440001 and tbcol = 1 group by tgcol
 print $data00 $data01 $data02 $data03 $data04 $data05 $data06 
 if $data00 != 25 then 
   return -1
diff --git a/tests/script/general/field/tinyint.sim b/tests/script/general/field/tinyint.sim
index f10e3d293a9d847f4f71a585603598a69ddc5e1c..7e1a0c6e80022435a50c48398ee9098ce9ec43aa 100644
--- a/tests/script/general/field/tinyint.sim
+++ b/tests/script/general/field/tinyint.sim
@@ -31,7 +31,7 @@ while $i < 5
   $x = 0
   while $x < $rowNum
     $ms = $x . m 
-    sql insert into $tb values (now + $ms , 0 ) 
+    sql insert into $tb values (1626739200000 + $ms , 0 ) 
     $x = $x + 1
   endw  
   $i = $i + 1
@@ -42,7 +42,7 @@ while $i < 10
   $x = 0
   while $x < $rowNum
     $ms = $x . m 
-    sql insert into $tb values (now + $ms , 1 ) 
+    sql insert into $tb values (1626739200000 + $ms , 1 ) 
     $x = $x + 1
   endw  
   $i = $i + 1
@@ -83,35 +83,35 @@ if $rows != 100 then
 endi
 
 print =============== step3
-sql select * from $mt where ts > now + 4m and tbcol = 1
+sql select * from $mt where ts > 1626739440001 and tbcol = 1
 if $rows != 75 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and tbcol <> 1
+sql select * from $mt where ts > 1626739440001 and tbcol <> 1
 if $rows != 75 then 
   return -1
 endi
-sql select * from $mt where ts < now + 4m and tbcol = 0
+sql select * from $mt where ts < 1626739440001 and tbcol = 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts < now + 4m and tbcol <> 0
+sql select * from $mt where ts < 1626739440001 and tbcol <> 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts <= now + 4m and tbcol = 0
+sql select * from $mt where ts <= 1626739440001 and tbcol = 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts <= now + 4m and tbcol <> 0
+sql select * from $mt where ts <= 1626739440001 and tbcol <> 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and ts < now + 5m and tbcol <> 0
+sql select * from $mt where ts > 1626739440001 and ts < 1626739500001 and tbcol <> 0
 if $rows != 5 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and tbcol <> 0 and ts < now + 5m
+sql select * from $mt where ts > 1626739440001 and tbcol <> 0 and ts < 1626739500001
 if $rows != 5 then 
   return -1
 endi
@@ -138,7 +138,7 @@ if $data00 != 100 then
 endi
 
 print =============== step7
-sql select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from $mt where ts < now + 4m and tbcol = 1 group by tgcol
+sql select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from $mt where ts < 1626739440001 and tbcol = 1 group by tgcol
 print $data00 $data01 $data02 $data03 $data04 $data05 $data06 
 if $data00 != 25 then 
   return -1
diff --git a/tests/script/general/field/unsigined_bigint.sim b/tests/script/general/field/unsigined_bigint.sim
index 1cfe8ad15b31f38d2fc72d429a0c9af2cb5732fb..260128b5c2476911e8e1d809e63c7f89b4fd300a 100644
--- a/tests/script/general/field/unsigined_bigint.sim
+++ b/tests/script/general/field/unsigined_bigint.sim
@@ -31,11 +31,11 @@ while $i < 5
   $x = 0
   while $x < $rowNum
     $ms = $x . m 
-    sql insert into $tb values (now + $ms , 0 ) 
+    sql insert into $tb values (1626739200000 + $ms , 0 ) 
     $x = $x + 1
-    sql_error insert into $tb values (now + $ms , -10) 
-    sql_error insert into $tb values (now + $ms ,        -1000) 
-    sql_error insert into $tb values (now + $ms ,        -10000000) 
+    sql_error insert into $tb values (1626739200000 + $ms , -10) 
+    sql_error insert into $tb values (1626739200000 + $ms ,        -1000) 
+    sql_error insert into $tb values (1626739200000 + $ms ,        -10000000) 
   endw  
   $i = $i + 1
 endw 
@@ -45,7 +45,7 @@ while $i < 10
   $x = 0
   while $x < $rowNum
     $ms = $x . m 
-    sql insert into $tb values (now + $ms , 1 ) 
+    sql insert into $tb values (1626739200000 + $ms , 1 ) 
     $x = $x + 1
   endw  
   $i = $i + 1
@@ -86,35 +86,35 @@ if $rows != 100 then
 endi
 
 print =============== step3
-sql select * from $mt where ts > now + 4m and tbcol = 1
+sql select * from $mt where ts > 1626739440001 and tbcol = 1
 if $rows != 75 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and tbcol <> 1
+sql select * from $mt where ts > 1626739440001 and tbcol <> 1
 if $rows != 75 then 
   return -1
 endi
-sql select * from $mt where ts < now + 4m and tbcol = 0
+sql select * from $mt where ts < 1626739440001 and tbcol = 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts < now + 4m and tbcol <> 0
+sql select * from $mt where ts < 1626739440001 and tbcol <> 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts <= now + 4m and tbcol = 0
+sql select * from $mt where ts <= 1626739440001 and tbcol = 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts <= now + 4m and tbcol <> 0
+sql select * from $mt where ts <= 1626739440001 and tbcol <> 0
 if $rows != 25 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and ts < now + 5m and tbcol <> 0
+sql select * from $mt where ts > 1626739440001 and ts < 1626739500001 and tbcol <> 0
 if $rows != 5 then 
   return -1
 endi
-sql select * from $mt where ts > now + 4m and tbcol <> 0 and ts < now + 5m
+sql select * from $mt where ts > 1626739440001 and tbcol <> 0 and ts < 1626739500001
 if $rows != 5 then 
   return -1
 endi
@@ -143,7 +143,7 @@ if $data00 != 100 then
 endi
 
 print =============== step7
-sql select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from $mt where ts < now + 4m and tbcol = 1 group by tgcol
+sql select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from $mt where ts < 1626739440001 and tbcol = 1 group by tgcol
 print $data00 $data01 $data02 $data03 $data04 $data05 $data06 
 if $data00 != 25 then 
   return -1
diff --git a/tests/script/general/tag/3.sim b/tests/script/general/rm_bak/tag/3.sim
similarity index 100%
rename from tests/script/general/tag/3.sim
rename to tests/script/general/rm_bak/tag/3.sim
diff --git a/tests/script/general/tag/4.sim b/tests/script/general/rm_bak/tag/4.sim
similarity index 100%
rename from tests/script/general/tag/4.sim
rename to tests/script/general/rm_bak/tag/4.sim
diff --git a/tests/script/general/tag/5.sim b/tests/script/general/rm_bak/tag/5.sim
similarity index 100%
rename from tests/script/general/tag/5.sim
rename to tests/script/general/rm_bak/tag/5.sim
diff --git a/tests/script/general/tag/6.sim b/tests/script/general/rm_bak/tag/6.sim
similarity index 100%
rename from tests/script/general/tag/6.sim
rename to tests/script/general/rm_bak/tag/6.sim
diff --git a/tests/script/general/tag/add.sim b/tests/script/general/rm_bak/tag/add.sim
similarity index 100%
rename from tests/script/general/tag/add.sim
rename to tests/script/general/rm_bak/tag/add.sim
diff --git a/tests/script/general/tag/bigint.sim b/tests/script/general/rm_bak/tag/bigint.sim
similarity index 100%
rename from tests/script/general/tag/bigint.sim
rename to tests/script/general/rm_bak/tag/bigint.sim
diff --git a/tests/script/general/tag/binary.sim b/tests/script/general/rm_bak/tag/binary.sim
similarity index 100%
rename from tests/script/general/tag/binary.sim
rename to tests/script/general/rm_bak/tag/binary.sim
diff --git a/tests/script/general/tag/binary_binary.sim b/tests/script/general/rm_bak/tag/binary_binary.sim
similarity index 100%
rename from tests/script/general/tag/binary_binary.sim
rename to tests/script/general/rm_bak/tag/binary_binary.sim
diff --git a/tests/script/general/tag/bool.sim b/tests/script/general/rm_bak/tag/bool.sim
similarity index 100%
rename from tests/script/general/tag/bool.sim
rename to tests/script/general/rm_bak/tag/bool.sim
diff --git a/tests/script/general/tag/bool_binary.sim b/tests/script/general/rm_bak/tag/bool_binary.sim
similarity index 100%
rename from tests/script/general/tag/bool_binary.sim
rename to tests/script/general/rm_bak/tag/bool_binary.sim
diff --git a/tests/script/general/tag/bool_int.sim b/tests/script/general/rm_bak/tag/bool_int.sim
similarity index 100%
rename from tests/script/general/tag/bool_int.sim
rename to tests/script/general/rm_bak/tag/bool_int.sim
diff --git a/tests/script/general/tag/change.sim b/tests/script/general/rm_bak/tag/change.sim
similarity index 100%
rename from tests/script/general/tag/change.sim
rename to tests/script/general/rm_bak/tag/change.sim
diff --git a/tests/script/general/tag/column.sim b/tests/script/general/rm_bak/tag/column.sim
similarity index 100%
rename from tests/script/general/tag/column.sim
rename to tests/script/general/rm_bak/tag/column.sim
diff --git a/tests/script/general/tag/commit.sim b/tests/script/general/rm_bak/tag/commit.sim
similarity index 100%
rename from tests/script/general/tag/commit.sim
rename to tests/script/general/rm_bak/tag/commit.sim
diff --git a/tests/script/general/tag/create.sim b/tests/script/general/rm_bak/tag/create.sim
similarity index 100%
rename from tests/script/general/tag/create.sim
rename to tests/script/general/rm_bak/tag/create.sim
diff --git a/tests/script/general/tag/delete.sim b/tests/script/general/rm_bak/tag/delete.sim
similarity index 100%
rename from tests/script/general/tag/delete.sim
rename to tests/script/general/rm_bak/tag/delete.sim
diff --git a/tests/script/general/tag/double.sim b/tests/script/general/rm_bak/tag/double.sim
similarity index 100%
rename from tests/script/general/tag/double.sim
rename to tests/script/general/rm_bak/tag/double.sim
diff --git a/tests/script/general/tag/filter.sim b/tests/script/general/rm_bak/tag/filter.sim
similarity index 100%
rename from tests/script/general/tag/filter.sim
rename to tests/script/general/rm_bak/tag/filter.sim
diff --git a/tests/script/general/tag/float.sim b/tests/script/general/rm_bak/tag/float.sim
similarity index 100%
rename from tests/script/general/tag/float.sim
rename to tests/script/general/rm_bak/tag/float.sim
diff --git a/tests/script/general/tag/int.sim b/tests/script/general/rm_bak/tag/int.sim
similarity index 100%
rename from tests/script/general/tag/int.sim
rename to tests/script/general/rm_bak/tag/int.sim
diff --git a/tests/script/general/tag/int_binary.sim b/tests/script/general/rm_bak/tag/int_binary.sim
similarity index 100%
rename from tests/script/general/tag/int_binary.sim
rename to tests/script/general/rm_bak/tag/int_binary.sim
diff --git a/tests/script/general/tag/int_float.sim b/tests/script/general/rm_bak/tag/int_float.sim
similarity index 100%
rename from tests/script/general/tag/int_float.sim
rename to tests/script/general/rm_bak/tag/int_float.sim
diff --git a/tests/script/general/tag/set.sim b/tests/script/general/rm_bak/tag/set.sim
similarity index 100%
rename from tests/script/general/tag/set.sim
rename to tests/script/general/rm_bak/tag/set.sim
diff --git a/tests/script/general/tag/smallint.sim b/tests/script/general/rm_bak/tag/smallint.sim
similarity index 100%
rename from tests/script/general/tag/smallint.sim
rename to tests/script/general/rm_bak/tag/smallint.sim
diff --git a/tests/script/general/tag/testSuite.sim b/tests/script/general/rm_bak/tag/testSuite.sim
similarity index 100%
rename from tests/script/general/tag/testSuite.sim
rename to tests/script/general/rm_bak/tag/testSuite.sim
diff --git a/tests/script/general/tag/tinyint.sim b/tests/script/general/rm_bak/tag/tinyint.sim
similarity index 100%
rename from tests/script/general/tag/tinyint.sim
rename to tests/script/general/rm_bak/tag/tinyint.sim
diff --git a/tests/script/general/stream/agg_stream.sim b/tests/script/general/stream/agg_stream.sim
index 65657fc33be88152040ce68c46d559e8b2c119a5..548f59cab7e6b3a81c5b01a62e02456f3c209720 100644
--- a/tests/script/general/stream/agg_stream.sim
+++ b/tests/script/general/stream/agg_stream.sim
@@ -20,7 +20,7 @@ print =============== step2
 sql create database d4 precision 'us'
 sql use d4
 sql create table t1 (ts timestamp, i int)
-sql insert into d4.t1 values(now, 1)
+sql insert into d4.t1 values(1626739200000, 1)
 
 sql create table d4.s001 as select count(cpu_taosd), count(cpu_system), avg(cpu_taosd), avg(cpu_system), sum(cpu_taosd), max(cpu_taosd), min(cpu_taosd) from log.dn_192_168_0_1 interval(5s)
 sql create table d4.s002 as select count(mem_taosd), count(mem_system), avg(mem_taosd), avg(mem_system), sum(mem_taosd), max(mem_taosd), min(mem_taosd) from log.dn_192_168_0_1 interval(5s)
diff --git a/tests/script/general/stream/column_stream.sim b/tests/script/general/stream/column_stream.sim
index c43ca1fd5ac7cfc5e477c970b313414469e9a29c..59a65f0969ebc6e2fd6d62c5b3fcc1bf66c420b7 100644
--- a/tests/script/general/stream/column_stream.sim
+++ b/tests/script/general/stream/column_stream.sim
@@ -23,7 +23,7 @@ print =============== step2
 sql create database d4 precision 'us'
 sql use d4
 sql create table t1 (ts timestamp, i int)
-sql insert into d4.t1 values(now, 1)
+sql insert into d4.t1 values(1626739200000, 1)
 
 sql create table d4.s1 as select count(cpu_taosd), count(cpu_system), avg(cpu_taosd), avg(cpu_system), sum(cpu_taosd), max(cpu_taosd), min(cpu_taosd), stddev(cpu_taosd), count(*) as c1, count(*) as c2, count(*) as c3, count(*) as c4, count(*) as c5, count(*) as c6, count(*) as c7, count(*) as c8, count(*) as c9, count(*) as c10, count(*) as c11, count(*) as c12, count(*) as c13, count(*) as c14, count(*) as c15, count(*) as c16, count(*) as c17, count(*) as c18, count(*) as c19, count(*) as c20, count(*) as c21, count(*) as c22, count(*) as c23, count(*) as c24, count(*) as c25, count(*) as c26, count(*) as c27, count(*) as c28, count(*) as c29, count(*) as c30 from log.dn_192_168_0_1 interval(5s)
 
diff --git a/tests/script/general/stream/metrics_replica1_vnoden.sim b/tests/script/general/stream/metrics_replica1_vnoden.sim
index 4629063c4460c10dccc844b6b39e512012638379..db1044a597510048c4b812d8a3a16d53ff4e5ac0 100644
--- a/tests/script/general/stream/metrics_replica1_vnoden.sim
+++ b/tests/script/general/stream/metrics_replica1_vnoden.sim
@@ -37,11 +37,11 @@ while $i < $tbNum
   $tb = $tbPrefix . $i
   sql create table $tb using $mt tags( $i )
   
-  $x = -1440
+  $x = -400
   $y = 0
   while $y < $rowNum
     $ms = $x . m 
-    sql insert into $tb values (now $ms , $y , $y ) 
+    sql insert into $tb values (1626739200000 $ms , $y , $y ) 
     $x = $x + 1
 	$y = $y + 1
   endw 
@@ -143,14 +143,14 @@ $st = $stPrefix . la
 sql create table $st as select last(tbcol) from $mt interval(1d)
 
 print =============== step11 wh
-sql select count(tbcol) from $mt where ts < now + 4m interval(1d)
-print select count(tbcol) from $mt where ts < now + 4m interval(1d) ===> $data00 $data01
+sql select count(tbcol) from $mt where ts < 1626739440001 interval(1d)
+print select count(tbcol) from $mt where ts < 1626739440000 interval(1d) ===> $data00 $data01
 if $data01 != 200 then 
   return -1
 endi
 
 $st = $stPrefix . wh
-#sql create table $st as select count(tbcol) from $mt where ts < now + 4m interval(1d)
+#sql create table $st as select count(tbcol) from $mt where ts < 1626739200000 + 4m interval(1d)
 
 print =============== step12 as
 sql select count(tbcol) from $mt interval(1d)
diff --git a/tests/script/general/stream/restart_stream.sim b/tests/script/general/stream/restart_stream.sim
index c8be10103d16a856fb0c083546cfaf8b939a1b98..62e47f9b3a6c12668409293769ee7c5a12a718ac 100644
--- a/tests/script/general/stream/restart_stream.sim
+++ b/tests/script/general/stream/restart_stream.sim
@@ -34,11 +34,11 @@ while $i < 10
   $tb = $tbPrefix . $i
   sql create table $tb using $mt tags( 0 )  
 
-  $x = -1440
+  $x = -400
   $y = 0
   while $y < $rowNum
-    $ms = $x . m 
-    sql insert into $tb values (now $ms , $y , $y ) 
+    $ms = $x . m
+    sql insert into $tb values (1626739200000 $ms , $y , $y ) 
     $x = $x + 1
 	$y = $y + 1
   endw 
@@ -54,7 +54,7 @@ sql select count(*) from $tb interval(1d)
 print ===>rows $rows, data $data01
 if $rows != 1 then
   return -1
-endi  
+endi 
 if $data01 != 20 then
   return -1
 endi  
@@ -114,11 +114,11 @@ while $i < 5
   $tb = $tbPrefix . $i
   sql create table $tb using $mt tags( 0 )  
   
-  $x = -1440
+  $x = -400
   $y = 0
   while $y < $rowNum
     $ms = $x . m 
-    sql insert into $tb values (now $ms , $y , $y ) 
+    sql insert into $tb values (1626739200000 $ms , $y , $y ) 
     $x = $x + 1
 	$y = $y + 1
   endw 
diff --git a/tests/script/general/stream/stream_3.sim b/tests/script/general/stream/stream_3.sim
index 31490dc5ac44b93f0daf02cd0ba3b4d77a3be20b..b043993814db2ea5bf8c6a3513317efca50b51d3 100644
--- a/tests/script/general/stream/stream_3.sim
+++ b/tests/script/general/stream/stream_3.sim
@@ -34,11 +34,11 @@ while $i < $tbNum
   $tb = $tbPrefix . $i
   sql create table $tb using $mt tags( $i )
   
-  $x = -1440
+  $x = -400
   $y = 0
   while $y < $rowNum
     $ms = $x . m 
-    sql insert into $tb values (now $ms , $y , $y ) 
+    sql insert into $tb values (1626739200000 $ms , $y , $y ) 
     $x = $x + 1
 	$y = $y + 1
   endw 
@@ -139,11 +139,11 @@ while $i < $tbNum
   $tb = $tbPrefix . $i
   sql create table $tb using $mt tags( $i )
   
-  $x = -1440
+  $x = -400
   $y = 0
   while $y < $rowNum
     $ms = $x . m 
-    sql insert into $tb values (now $ms , $y , $y ) 
+    sql insert into $tb values (1626739200000 $ms , $y , $y ) 
     $x = $x + 1
 	$y = $y + 1
   endw 
diff --git a/tests/script/general/stream/stream_restart.sim b/tests/script/general/stream/stream_restart.sim
index 4bf6760703ef744572a0b172cb860141f8768ff5..54a60a00811de0253d1ad1110b69f2587f707aa1 100644
--- a/tests/script/general/stream/stream_restart.sim
+++ b/tests/script/general/stream/stream_restart.sim
@@ -37,7 +37,7 @@ while $i < $tbNum
   $y = 0
   while $y < $rowNum
     $ms = $x . s
-    sql insert into $tb values (now + $ms , $y , $y ) 
+    sql insert into $tb values (1626739200000 + $ms , $y , $y ) 
     $x = $x + 1
 	$y = $y + 1
   endw 
diff --git a/tests/script/general/stream/table_del.sim b/tests/script/general/stream/table_del.sim
index 3cbce538d5a87553289b834bd15dea1f43da35fb..34673605d63b39b9fd809aaedd94f4e6ef80f5b7 100644
--- a/tests/script/general/stream/table_del.sim
+++ b/tests/script/general/stream/table_del.sim
@@ -34,11 +34,11 @@ while $i < $tbNum
   $tb = $tbPrefix . $i
   sql create table $tb using $mt tags( $i )
   
-  $x = -1440
+  $x = -400
   $y = 0
   while $y < $rowNum
     $ms = $x . m 
-    sql insert into $tb values (now $ms , $y , $y ) 
+    sql insert into $tb values (1626739200000 $ms , $y , $y ) 
     $x = $x + 1
 	$y = $y + 1
   endw 
diff --git a/tests/script/general/stream/table_replica1_vnoden.sim b/tests/script/general/stream/table_replica1_vnoden.sim
index be67a31b4e6782e81289b03fb267db501f341520..4a6c4fe0462fc675e13785905ff1b707815fd168 100644
--- a/tests/script/general/stream/table_replica1_vnoden.sim
+++ b/tests/script/general/stream/table_replica1_vnoden.sim
@@ -37,11 +37,11 @@ while $i < $tbNum
   $tb = $tbPrefix . $i
   sql create table $tb using $mt tags( $i )
   
-  $x = -1440
+  $x = -400
   $y = 0
   while $y < $rowNum
     $ms = $x . m 
-    sql insert into $tb values (now $ms , $y , $y ) 
+    sql insert into $tb values (1626739200000 $ms , $y , $y ) 
     $x = $x + 1
 	$y = $y + 1
   endw 
@@ -176,14 +176,14 @@ $st = $stPrefix . pe
 sql create table $st as select percentile(tbcol, 1) from $tb interval(1d)
 
 print =============== step14 wh
-sql select count(tbcol) from $tb where ts < now + 4m interval(1d)
-print select count(tbcol) from $tb where ts < now + 4m interval(1d) ===> $data00 $data01
+sql select count(tbcol) from $tb where ts < 1626739440001 interval(1d)
+print select count(tbcol) from $tb where ts < 1626739440001 interval(1d) ===> $data00 $data01
 if $data01 != $rowNum then 
   return -1
 endi
 
 $st = $stPrefix . wh
-#sql create table $st as select count(tbcol) from $tb where ts < now + 4m interval(1d)
+#sql create table $st as select count(tbcol) from $tb where ts < 1626739200000 + 4m interval(1d)
 
 print =============== step15 as
 sql select count(tbcol) from $tb interval(1d)
diff --git a/tests/script/general/table/fill.sim b/tests/script/general/table/fill.sim
deleted file mode 100644
index 069eeff6cf0cdf35a55f33fa3e5bbf8135cc7921..0000000000000000000000000000000000000000
--- a/tests/script/general/table/fill.sim
+++ /dev/null
@@ -1,63 +0,0 @@
-system sh/stop_dnodes.sh
-
-system sh/deploy.sh -n dnode1 -i 1
-system sh/cfg.sh -n dnode1 -c walLevel -v 1
-system sh/exec.sh -n dnode1 -s start
-
-sleep 2000
-sql connect
-
-print =================== step1
-sql create database db
-sql use db
-sql create table mt (ts timestamp, k int, h binary(20), t bigint, s float, f double, x smallint, y tinyint, z bool) tags (a int, b binary(20), c bigint)
-sql create table tb using mt tags (0, '1', 2)
-
-sql insert into tb values(now -200d, 200, '1', 2, 3, 4, 5, 6, true);
-sql insert into tb values(now -100d, 100, '1', 2, 3, 4, 5, 6, true);
-sql insert into tb values(now -30d,  30,  '1', 2, 3, 4, 5, 6, true);
-sql insert into tb values(now -20d,  20,  '1', 2, 3, 4, 5, 6, true);
-sql insert into tb values(now -10d,  10,  '1', 2, 3, 4, 5, 6, true);
-sql insert into tb values(now -5d,   5,   '1', 2, 3, 4, 5, 6, true);
-sql insert into tb values(now -1d,   1,   '1', 2, 3, 4, 5, 6, true);
-sql insert into tb values(now,       0,   '1', 2, 3, 4, 5, 6, true);
-
-sql select * from db.mt
-if $rows != 8 then 
-  return -1
-endi
-
-sql select * from db.tb
-if $rows != 8 then 
-  return -1
-endi
-
-sql select count(*) from db.mt
-if $data00 != 8 then 
-  return -1
-endi
-
-sql select count(*), last(ts), min(k), max(k), avg(k) from db.mt where a=0 and ts>="2016-4-29 8:0:0" and ts < "2018-7-18 8:9:0" interval(1d) fill(value, 1)
-sql select count(*), last(ts), min(k), max(k), avg(k) from db.mt where a=0 and ts>="2016-4-29 8:0:0" and ts < "2018-7-18 8:9:0" interval(1d) fill(value, 1)
-
-print =================== step2
-system sh/exec.sh -n dnode1 -s stop -x SIGINT
-sleep 3000
-system sh/exec.sh -n dnode1 -s start
-sleep 2000
-
-print =================== step3
-sql select * from db.mt
-if $rows != 8 then 
-  return -1
-endi
-
-sql select * from db.tb
-if $rows != 8 then 
-  return -1
-endi
-
-sql select count(*) from db.mt
-if $data00 != 8 then 
-  return -1
-endi
diff --git a/tests/script/jenkins/basic.txt b/tests/script/jenkins/basic.txt
index daac2caf5da086d538d0ec4845737a819f6fa1cd..6ad6a74eed76765a11e3cc875b7ff1ae51be648b 100644
--- a/tests/script/jenkins/basic.txt
+++ b/tests/script/jenkins/basic.txt
@@ -93,31 +93,7 @@ cd ../../../debug; make
 #======================b1-end===============
 #======================b2-start===============
 
-./test.sh -f general/tag/3.sim
-./test.sh -f general/tag/4.sim
-./test.sh -f general/tag/5.sim
-./test.sh -f general/tag/6.sim
-./test.sh -f general/tag/add.sim
-./test.sh -f general/tag/bigint.sim
-./test.sh -f general/tag/binary_binary.sim
-./test.sh -f general/tag/binary.sim
-./test.sh -f general/tag/bool_binary.sim
-./test.sh -f general/tag/bool_int.sim
-./test.sh -f general/tag/bool.sim
-./test.sh -f general/tag/change.sim
-./test.sh -f general/tag/column.sim
-./test.sh -f general/tag/commit.sim
-./test.sh -f general/tag/create.sim
-./test.sh -f general/tag/delete.sim
-./test.sh -f general/tag/double.sim
-./test.sh -f general/tag/filter.sim
-./test.sh -f general/tag/float.sim
-./test.sh -f general/tag/int_binary.sim
-./test.sh -f general/tag/int_float.sim
-./test.sh -f general/tag/int.sim
-./test.sh -f general/tag/set.sim
-./test.sh -f general/tag/smallint.sim
-./test.sh -f general/tag/tinyint.sim
+
 ./test.sh -f general/wal/sync.sim
 ./test.sh -f general/wal/kill.sim
 ./test.sh -f general/wal/maxtables.sim
@@ -397,7 +373,6 @@ cd ../../../debug; make
 ./test.sh -f general/table/delete_writing.sim
 ./test.sh -f general/table/describe.sim
 ./test.sh -f general/table/double.sim
-./test.sh -f general/table/fill.sim
 ./test.sh -f general/table/float.sim
 ./test.sh -f general/table/int.sim
 ./test.sh -f general/table/limit.sim