Merge branch 'develop' into feature/td-4647-2

.gitmodules

@@ -13,3 +13,6 @@
 [submodule "deps/jemalloc"]
 	path = deps/jemalloc
 	url = https://github.com/jemalloc/jemalloc
+[submodule "deps/TSZ"]
+	path = deps/TSZ
+	url = https://github.com/taosdata/TSZ.git

cmake/input.inc

@@ -91,3 +91,12 @@ SET(TD_MEMORY_SANITIZER FALSE)
 IF (${MEMORY_SANITIZER} MATCHES "true")
   SET(TD_MEMORY_SANITIZER TRUE)
 ENDIF ()
+
+IF (${TSZ_ENABLED} MATCHES "true")
+  # define add 
+  MESSAGE(STATUS "build with TSZ enabled")
+  ADD_DEFINITIONS(-DTD_TSZ)
+  set(VAR_TSZ "TSZ" CACHE INTERNAL "global variant tsz" )
+ELSE()
+  set(VAR_TSZ "" CACHE INTERNAL "global variant empty" )
+ENDIF()  

deps/CMakeLists.txt

@@ -15,7 +15,6 @@ ADD_SUBDIRECTORY(cJson)
 ADD_SUBDIRECTORY(wepoll)
 ADD_SUBDIRECTORY(MsvcLibX)
 ADD_SUBDIRECTORY(rmonotonic)
-
 ADD_SUBDIRECTORY(lua)
 
 IF (TD_LINUX AND TD_MQTT)
@@ -38,3 +37,7 @@ IF (TD_LINUX_64 AND JEMALLOC_ENABLED)
     BUILD_COMMAND       ${MAKE}
   )
 ENDIF ()
+
+IF (${TSZ_ENABLED} MATCHES "true")
+  ADD_SUBDIRECTORY(TSZ)  
+ENDIF()
\ No newline at end of file

TSZ @ 0ca5b15a

+Subproject commit 0ca5b15a8eac40327dd737be52c926fa5675712c

src/balance/src/bnThread.c

@@ -23,6 +23,8 @@
 static SBnThread tsBnThread;
 
 static void *bnThreadFunc(void *arg) {
+  setThreadName("bnThreadd");
+
   while (1) {
     pthread_mutex_lock(&tsBnThread.mutex);
     if (tsBnThread.stop) {

src/client/CMakeLists.txt

@@ -11,7 +11,7 @@ IF (TD_LINUX)
 
   # set the static lib name
   ADD_LIBRARY(taos_static STATIC ${SRC})
-  TARGET_LINK_LIBRARIES(taos_static common query trpc tutil pthread m rt)
+  TARGET_LINK_LIBRARIES(taos_static common query trpc tutil pthread m rt ${VAR_TSZ})
   SET_TARGET_PROPERTIES(taos_static PROPERTIES OUTPUT_NAME "taos_static")
   SET_TARGET_PROPERTIES(taos_static PROPERTIES CLEAN_DIRECT_OUTPUT 1)
 

src/client/inc/tscUtil.h

@@ -108,7 +108,9 @@ int32_t converToStr(char *str, int type, void *buf, int32_t bufSize, int32_t *le
 
 int32_t tscCreateDataBlock(size_t initialSize, int32_t rowSize, int32_t startOffset, SName* name, STableMeta* pTableMeta, STableDataBlocks** dataBlocks);
 void tscDestroyDataBlock(STableDataBlocks* pDataBlock, bool removeMeta);
+void    tscSortRemoveDataBlockDupRowsRaw(STableDataBlocks* dataBuf);
 int     tscSortRemoveDataBlockDupRows(STableDataBlocks* dataBuf, SBlockKeyInfo* pBlkKeyInfo);
+int32_t tsSetBlockInfo(SSubmitBlk *pBlocks, const STableMeta *pTableMeta, int32_t numOfRows);
 
 void tscDestroyBoundColumnInfo(SParsedDataColInfo* pColInfo);
 void doRetrieveSubqueryData(SSchedMsg *pMsg);

src/client/inc/tsclient.h

@@ -138,6 +138,7 @@ typedef struct STableDataBlocks {
   uint32_t    size;
   STableMeta *pTableMeta;   // the tableMeta of current table, the table meta will be used during submit, keep a ref to avoid to be removed from cache
   char       *pData;
+  bool        cloned;
   
   SParsedDataColInfo boundColumnInfo;
 
@@ -159,6 +160,7 @@ typedef struct SInsertStatementParam {
   SHashObj    *pTableBlockHashList;     // data block for each table
   SArray      *pDataBlocks;             // SArray<STableDataBlocks*>. Merged submit block for each vgroup
   int8_t       schemaAttached;          // denote if submit block is built with table schema or not
+  uint8_t      payloadType;             // EPayloadType. 0: K-V payload for non-prepare insert, 1: rawPayload for prepare insert
   STagData     tagData;                 // NOTE: pTagData->data is used as a variant length array
 
   int32_t      batchSize;               // for parameter ('?') binding and batch processing
@@ -170,6 +172,14 @@ typedef struct SInsertStatementParam {
   char        *sql;                     // current sql statement position
 } SInsertStatementParam;
 
+typedef enum {
+  PAYLOAD_TYPE_KV = 0,
+  PAYLOAD_TYPE_RAW = 1,
+} EPayloadType;
+
+#define IS_RAW_PAYLOAD(t) \
+  (((int)(t)) == PAYLOAD_TYPE_RAW)  // 0: K-V payload for non-prepare insert, 1: rawPayload for prepare insert
+
 // TODO extract sql parser supporter
 typedef struct {
   int     command;

src/client/src/taos.def

@@ -7,11 +7,16 @@ taos_connect_auth
 taos_close
 taos_stmt_init
 taos_stmt_prepare
+taos_stmt_set_tbname_tags
+taos_stmt_set_tbname
+taos_stmt_is_insert
+taos_stmt_num_params
 taos_stmt_bind_param
 taos_stmt_add_batch
 taos_stmt_execute
 taos_stmt_use_result
 taos_stmt_close
+taos_stmt_errstr
 taos_query
 taos_fetch_row
 taos_result_precision
@@ -37,6 +42,4 @@ taos_consume
 taos_unsubscribe
 taos_open_stream
 taos_close_stream
-taos_fetch_block
 taos_load_table_info
-

src/client/src/tscParseInsert.c

@@ -425,7 +425,7 @@ static int32_t tsParseOneColumnKV(SSchema *pSchema, SStrToken *pToken, char *pay
     case TSDB_DATA_TYPE_BOOL: {  // bool
       if (isNullStr(pToken)) {
         *sizeAppend = tsSetPayloadColValue(payloadStart, payload, pSchema->colId, pSchema->type,
-                                           tdGetNullVal(TSDB_DATA_TYPE_BOOL), TYPE_BYTES[TSDB_DATA_TYPE_BOOL], tOffset);
+                                           getNullValue(TSDB_DATA_TYPE_BOOL), TYPE_BYTES[TSDB_DATA_TYPE_BOOL], tOffset);
       } else {
         if ((pToken->type == TK_BOOL || pToken->type == TK_STRING) && (pToken->n != 0)) {
           if (strncmp(pToken->z, "true", pToken->n) == 0) {
@@ -459,7 +459,7 @@ static int32_t tsParseOneColumnKV(SSchema *pSchema, SStrToken *pToken, char *pay
     case TSDB_DATA_TYPE_TINYINT:
       if (isNullStr(pToken)) {
         *sizeAppend = tsSetPayloadColValue(payloadStart, payload, pSchema->colId, pSchema->type,
-                                           tdGetNullVal(TSDB_DATA_TYPE_TINYINT), TYPE_BYTES[TSDB_DATA_TYPE_TINYINT], tOffset);
+                                           getNullValue(TSDB_DATA_TYPE_TINYINT), TYPE_BYTES[TSDB_DATA_TYPE_TINYINT], tOffset);
       } else {
         ret = tStrToInteger(pToken->z, pToken->type, pToken->n, &iv, true);
         if (ret != TSDB_CODE_SUCCESS) {
@@ -479,7 +479,7 @@ static int32_t tsParseOneColumnKV(SSchema *pSchema, SStrToken *pToken, char *pay
     case TSDB_DATA_TYPE_UTINYINT:
       if (isNullStr(pToken)) {
         *sizeAppend = tsSetPayloadColValue(payloadStart, payload, pSchema->colId, pSchema->type,
-                                           tdGetNullVal(TSDB_DATA_TYPE_UTINYINT), TYPE_BYTES[TSDB_DATA_TYPE_UTINYINT], tOffset);
+                                           getNullValue(TSDB_DATA_TYPE_UTINYINT), TYPE_BYTES[TSDB_DATA_TYPE_UTINYINT], tOffset);
       } else {
         ret = tStrToInteger(pToken->z, pToken->type, pToken->n, &iv, false);
         if (ret != TSDB_CODE_SUCCESS) {
@@ -499,7 +499,7 @@ static int32_t tsParseOneColumnKV(SSchema *pSchema, SStrToken *pToken, char *pay
     case TSDB_DATA_TYPE_SMALLINT:
       if (isNullStr(pToken)) {
         *sizeAppend = tsSetPayloadColValue(payloadStart, payload, pSchema->colId, pSchema->type,
-                                           tdGetNullVal(TSDB_DATA_TYPE_SMALLINT), TYPE_BYTES[TSDB_DATA_TYPE_SMALLINT], tOffset);
+                                           getNullValue(TSDB_DATA_TYPE_SMALLINT), TYPE_BYTES[TSDB_DATA_TYPE_SMALLINT], tOffset);
       } else {
         ret = tStrToInteger(pToken->z, pToken->type, pToken->n, &iv, true);
         if (ret != TSDB_CODE_SUCCESS) {
@@ -520,7 +520,7 @@ static int32_t tsParseOneColumnKV(SSchema *pSchema, SStrToken *pToken, char *pay
       if (isNullStr(pToken)) {
         *sizeAppend =
             tsSetPayloadColValue(payloadStart, payload, pSchema->colId, pSchema->type,
-                                 tdGetNullVal(TSDB_DATA_TYPE_USMALLINT), TYPE_BYTES[TSDB_DATA_TYPE_USMALLINT], tOffset);
+                                 getNullValue(TSDB_DATA_TYPE_USMALLINT), TYPE_BYTES[TSDB_DATA_TYPE_USMALLINT], tOffset);
       } else {
         ret = tStrToInteger(pToken->z, pToken->type, pToken->n, &iv, false);
         if (ret != TSDB_CODE_SUCCESS) {
@@ -540,7 +540,7 @@ static int32_t tsParseOneColumnKV(SSchema *pSchema, SStrToken *pToken, char *pay
     case TSDB_DATA_TYPE_INT:
       if (isNullStr(pToken)) {
         *sizeAppend = tsSetPayloadColValue(payloadStart, payload, pSchema->colId, pSchema->type,
-                                           tdGetNullVal(TSDB_DATA_TYPE_INT), TYPE_BYTES[TSDB_DATA_TYPE_INT], tOffset);
+                                           getNullValue(TSDB_DATA_TYPE_INT), TYPE_BYTES[TSDB_DATA_TYPE_INT], tOffset);
       } else {
         ret = tStrToInteger(pToken->z, pToken->type, pToken->n, &iv, true);
         if (ret != TSDB_CODE_SUCCESS) {
@@ -560,7 +560,7 @@ static int32_t tsParseOneColumnKV(SSchema *pSchema, SStrToken *pToken, char *pay
     case TSDB_DATA_TYPE_UINT:
       if (isNullStr(pToken)) {
         *sizeAppend = tsSetPayloadColValue(payloadStart, payload, pSchema->colId, pSchema->type,
-                                           tdGetNullVal(TSDB_DATA_TYPE_UINT), TYPE_BYTES[TSDB_DATA_TYPE_UINT], tOffset);
+                                           getNullValue(TSDB_DATA_TYPE_UINT), TYPE_BYTES[TSDB_DATA_TYPE_UINT], tOffset);
       } else {
         ret = tStrToInteger(pToken->z, pToken->type, pToken->n, &iv, false);
         if (ret != TSDB_CODE_SUCCESS) {
@@ -580,7 +580,7 @@ static int32_t tsParseOneColumnKV(SSchema *pSchema, SStrToken *pToken, char *pay
     case TSDB_DATA_TYPE_BIGINT:
       if (isNullStr(pToken)) {
         *sizeAppend = tsSetPayloadColValue(payloadStart, payload, pSchema->colId, pSchema->type,
-                                           tdGetNullVal(TSDB_DATA_TYPE_BIGINT), TYPE_BYTES[TSDB_DATA_TYPE_BIGINT], tOffset);
+                                           getNullValue(TSDB_DATA_TYPE_BIGINT), TYPE_BYTES[TSDB_DATA_TYPE_BIGINT], tOffset);
       } else {
         ret = tStrToInteger(pToken->z, pToken->type, pToken->n, &iv, true);
         if (ret != TSDB_CODE_SUCCESS) {
@@ -598,7 +598,7 @@ static int32_t tsParseOneColumnKV(SSchema *pSchema, SStrToken *pToken, char *pay
     case TSDB_DATA_TYPE_UBIGINT:
       if (isNullStr(pToken)) {
         *sizeAppend = tsSetPayloadColValue(payloadStart, payload, pSchema->colId, pSchema->type,
-                                           tdGetNullVal(TSDB_DATA_TYPE_UBIGINT), TYPE_BYTES[TSDB_DATA_TYPE_UBIGINT], tOffset);
+                                           getNullValue(TSDB_DATA_TYPE_UBIGINT), TYPE_BYTES[TSDB_DATA_TYPE_UBIGINT], tOffset);
       } else {
         ret = tStrToInteger(pToken->z, pToken->type, pToken->n, &iv, false);
         if (ret != TSDB_CODE_SUCCESS) {
@@ -639,7 +639,7 @@ static int32_t tsParseOneColumnKV(SSchema *pSchema, SStrToken *pToken, char *pay
     case TSDB_DATA_TYPE_DOUBLE:
       if (isNullStr(pToken)) {
         *sizeAppend = tsSetPayloadColValue(payloadStart, payload, pSchema->colId, pSchema->type,
-                                           tdGetNullVal(TSDB_DATA_TYPE_DOUBLE), TYPE_BYTES[TSDB_DATA_TYPE_DOUBLE], tOffset);
+                                           getNullValue(TSDB_DATA_TYPE_DOUBLE), TYPE_BYTES[TSDB_DATA_TYPE_DOUBLE], tOffset);
       } else {
         double dv;
         if (TK_ILLEGAL == tscToDouble(pToken, &dv, &endptr)) {
@@ -661,7 +661,7 @@ static int32_t tsParseOneColumnKV(SSchema *pSchema, SStrToken *pToken, char *pay
       if (pToken->type == TK_NULL) {
         payloadColSetId(payload, pSchema->colId);
         payloadColSetType(payload, pSchema->type);
-        memcpy(POINTER_SHIFT(payloadStart, tOffset), tdGetNullVal(TSDB_DATA_TYPE_BINARY), VARSTR_HEADER_SIZE + CHAR_BYTES);
+        memcpy(POINTER_SHIFT(payloadStart, tOffset), getNullValue(TSDB_DATA_TYPE_BINARY), VARSTR_HEADER_SIZE + CHAR_BYTES);
         *sizeAppend = (TDRowLenT)(VARSTR_HEADER_SIZE + CHAR_BYTES);
       } else {  // too long values will return invalid sql, not be truncated automatically
         if (pToken->n + VARSTR_HEADER_SIZE > pSchema->bytes) {  // todo refactor
@@ -684,7 +684,7 @@ static int32_t tsParseOneColumnKV(SSchema *pSchema, SStrToken *pToken, char *pay
       if (pToken->type == TK_NULL) {
         payloadColSetId(payload, pSchema->colId);
         payloadColSetType(payload, pSchema->type);
-        memcpy(POINTER_SHIFT(payloadStart,tOffset), tdGetNullVal(TSDB_DATA_TYPE_NCHAR), VARSTR_HEADER_SIZE + TSDB_NCHAR_SIZE);
+        memcpy(POINTER_SHIFT(payloadStart,tOffset), getNullValue(TSDB_DATA_TYPE_NCHAR), VARSTR_HEADER_SIZE + TSDB_NCHAR_SIZE);
         *sizeAppend = (TDRowLenT)(VARSTR_HEADER_SIZE + TSDB_NCHAR_SIZE);
       } else {
         // if the converted output len is over than pColumnModel->bytes, return error: 'Argument list too long'
@@ -716,7 +716,7 @@ static int32_t tsParseOneColumnKV(SSchema *pSchema, SStrToken *pToken, char *pay
           *kvRowColLen += (TDRowLenT)(sizeof(SColIdx) + TYPE_BYTES[TSDB_DATA_TYPE_TIMESTAMP]);
         } else {
           *sizeAppend = tsSetPayloadColValue(payloadStart, payload, pSchema->colId, pSchema->type,
-                                             tdGetNullVal(TSDB_DATA_TYPE_TIMESTAMP),
+                                             getNullValue(TSDB_DATA_TYPE_TIMESTAMP),
                                              TYPE_BYTES[TSDB_DATA_TYPE_TIMESTAMP], tOffset);
         }
       } else {
@@ -1056,7 +1056,7 @@ int32_t tscAllocateMemIfNeed(STableDataBlocks *pDataBlock, int32_t rowSize, int3
   return TSDB_CODE_SUCCESS;
 }
 
-int32_t tsSetBlockInfo(SSubmitBlk *pBlocks, const STableMeta *pTableMeta, int32_t numOfRows) {
+int32_t FORCE_INLINE tsSetBlockInfo(SSubmitBlk *pBlocks, const STableMeta *pTableMeta, int32_t numOfRows) {
   pBlocks->tid = pTableMeta->id.tid;
   pBlocks->uid = pTableMeta->id.uid;
   pBlocks->sversion = pTableMeta->sversion;
@@ -1069,9 +1069,8 @@ int32_t tsSetBlockInfo(SSubmitBlk *pBlocks, const STableMeta *pTableMeta, int32_
   }
 }
 
-#if 0
 // data block is disordered, sort it in ascending order
-static void tscSortRemoveDataBlockDupRowsOld(STableDataBlocks *dataBuf) {
+void tscSortRemoveDataBlockDupRowsRaw(STableDataBlocks *dataBuf) {
   SSubmitBlk *pBlocks = (SSubmitBlk *)dataBuf->pData;
 
   // size is less than the total size, since duplicated rows may be removed yet.
@@ -1114,7 +1113,6 @@ static void tscSortRemoveDataBlockDupRowsOld(STableDataBlocks *dataBuf) {
 
   dataBuf->prevTS = INT64_MIN;
 }
-#endif
 
 // data block is disordered, sort it in ascending order
 int tscSortRemoveDataBlockDupRows(STableDataBlocks *dataBuf, SBlockKeyInfo *pBlkKeyInfo) {

src/client/src/tscPrepare.c

@@ -47,6 +47,7 @@ typedef struct SNormalStmt {
 typedef struct SMultiTbStmt {
   bool      nameSet;
   bool      tagSet;
+  bool      subSet;
   uint64_t  currentUid;
   char     *sqlstr;
   uint32_t  tbNum;
@@ -54,6 +55,7 @@ typedef struct SMultiTbStmt {
   SStrToken stbname;
   SStrToken values;
   SArray   *tags;
+  STableDataBlocks *lastBlock;
   SHashObj *pTableHash;
   SHashObj *pTableBlockHashList;     // data block for each table
 } SMultiTbStmt;
@@ -291,7 +293,6 @@ static char* normalStmtBuildSql(STscStmt* stmt) {
   return taosStringBuilderGetResult(&sb, NULL);
 }
 
-#if 0
 static int fillColumnsNull(STableDataBlocks* pBlock, int32_t rowNum) {
   SParsedDataColInfo* spd = &pBlock->boundColumnInfo;
   int32_t offset = 0;
@@ -319,129 +320,8 @@ static int fillColumnsNull(STableDataBlocks* pBlock, int32_t rowNum) {
 
   return TSDB_CODE_SUCCESS;
 }
-#endif
-
-/**
- * input:
- * - schema:
- * - payload:
- * - spd:
- * output:
- * - pBlock with data block replaced by K-V format
- */
-static int refactorPayload(STableDataBlocks* pBlock, int32_t rowNum) {
-  SParsedDataColInfo* spd = &pBlock->boundColumnInfo;
-  SSchema*            schema = (SSchema*)pBlock->pTableMeta->schema;
-  SMemRowHelper*      pHelper = &pBlock->rowHelper;
-  STableMeta*         pTableMeta = pBlock->pTableMeta;
-  STableComInfo       tinfo = tscGetTableInfo(pTableMeta);
-  int                 code = TSDB_CODE_SUCCESS;
-  int32_t             extendedRowSize = getExtendedRowSize(&tinfo);
-  TDRowTLenT          destPayloadSize = sizeof(SSubmitBlk);
-
-  ASSERT(pHelper->allNullLen >= 8);
-
-  TDRowTLenT  destAllocSize = sizeof(SSubmitBlk) + rowNum * extendedRowSize;
-  SSubmitBlk* pDestBlock = tcalloc(destAllocSize, 1);
-  if (pDestBlock == NULL) {
-    return TSDB_CODE_TSC_OUT_OF_MEMORY;
-  }
-  memcpy(pDestBlock, pBlock->pData, sizeof(SSubmitBlk));
-  char* destPayload = (char*)pDestBlock + sizeof(SSubmitBlk);
 
-  char* srcPayload = (char*)pBlock->pData + sizeof(SSubmitBlk);
 
-  for (int n = 0; n < rowNum; ++n) {
-    payloadSetNCols(destPayload, spd->numOfBound);
-
-    TDRowTLenT dataRowLen = pHelper->allNullLen;
-    TDRowTLenT kvRowLen = TD_MEM_ROW_KV_VER_SIZE + sizeof(SColIdx) * spd->numOfBound;
-    TDRowTLenT payloadValOffset = payloadValuesOffset(destPayload);  // rely on payloadNCols
-    TDRowLenT  colValOffset = 0;
-
-    char* kvPrimaryKeyStart = destPayload + PAYLOAD_HEADER_LEN;  // primaryKey in 1st column tuple
-    char* kvStart = kvPrimaryKeyStart + PAYLOAD_COL_HEAD_LEN;    // the column tuple behind the primaryKey
-
-    for (int32_t i = 0; i < spd->numOfBound; ++i) {
-      int32_t colIndex = spd->boundedColumns[i];
-      ASSERT(spd->cols[colIndex].hasVal);
-      char*    start = srcPayload + spd->cols[colIndex].offset;
-      SSchema* pSchema = &schema[colIndex];  // get colId here
-      bool     isPrimaryKey = (colIndex == PRIMARYKEY_TIMESTAMP_COL_INDEX);
-
-      // the primary key locates in 1st column
-      if (!IS_DATA_COL_ORDERED(spd->orderStatus)) {
-        ASSERT(spd->colIdxInfo != NULL);
-        if (!isPrimaryKey) {
-          kvStart = POINTER_SHIFT(kvPrimaryKeyStart, spd->colIdxInfo[i].finalIdx * PAYLOAD_COL_HEAD_LEN);
-        } else {
-          ASSERT(spd->colIdxInfo[i].finalIdx == 0);
-        }
-      }
-      if (isPrimaryKey) {
-        payloadColSetId(kvPrimaryKeyStart, pSchema->colId);
-        payloadColSetType(kvPrimaryKeyStart, pSchema->type);
-        payloadColSetOffset(kvPrimaryKeyStart, colValOffset);
-        memcpy(POINTER_SHIFT(destPayload, payloadValOffset + colValOffset), start, TYPE_BYTES[pSchema->type]);
-        colValOffset += TYPE_BYTES[pSchema->type];
-        kvRowLen += TYPE_BYTES[pSchema->type];
-      } else {
-        payloadColSetId(kvStart, pSchema->colId);
-        payloadColSetType(kvStart, pSchema->type);
-        payloadColSetOffset(kvStart, colValOffset);
-        if (IS_VAR_DATA_TYPE(pSchema->type)) {
-          varDataCopy(POINTER_SHIFT(destPayload, payloadValOffset + colValOffset), start);
-          colValOffset += varDataTLen(start);
-          kvRowLen += varDataTLen(start);
-          if (pSchema->type == TSDB_DATA_TYPE_BINARY) {
-            dataRowLen += (varDataLen(start) - CHAR_BYTES);
-          } else if (pSchema->type == TSDB_DATA_TYPE_NCHAR) {
-            dataRowLen += (varDataLen(start) - TSDB_NCHAR_SIZE);
-          } else {
-            ASSERT(0);
-          }
-        } else {
-          memcpy(POINTER_SHIFT(destPayload, payloadValOffset + colValOffset), start, TYPE_BYTES[pSchema->type]);
-          colValOffset += TYPE_BYTES[pSchema->type];
-          kvRowLen += TYPE_BYTES[pSchema->type];
-        }
-
-        if (IS_DATA_COL_ORDERED(spd->orderStatus)) {
-          kvStart += PAYLOAD_COL_HEAD_LEN;  // move to next column
-        }
-      }
-
-
-    }  // end of column
-
-    if (kvRowLen < dataRowLen) {
-      payloadSetType(destPayload, SMEM_ROW_KV);
-    } else {
-      payloadSetType(destPayload, SMEM_ROW_DATA);
-    }
-
-    ASSERT(colValOffset <= TSDB_MAX_BYTES_PER_ROW);
-
-    TDRowTLenT len = payloadValOffset + colValOffset;
-    payloadSetTLen(destPayload, len);
-
-    // next loop
-    srcPayload += pBlock->rowSize;
-    destPayload += len;
-
-    destPayloadSize += len;
-  }  // end of row
-  
-  ASSERT(destPayloadSize <= destAllocSize);
-
-  tfree(pBlock->pData);
-  pBlock->pData = (char*)pDestBlock;
-  pBlock->nAllocSize = destAllocSize;
-  pBlock->size = destPayloadSize;
-
-  return code;
-}
-#if 0
 int32_t fillTablesColumnsNull(SSqlObj* pSql) {
   SSqlCmd* pCmd = &pSql->cmd;
 
@@ -464,93 +344,12 @@ int32_t fillTablesColumnsNull(SSqlObj* pSql) {
 
   return TSDB_CODE_SUCCESS;
 }
-#endif
-
-/**
- * check and sort
- */
-static int initPayloadEnv(STableDataBlocks* pBlock, int32_t rowNum) {
-  SParsedDataColInfo* spd = &pBlock->boundColumnInfo;
-  if (spd->orderStatus != ORDER_STATUS_UNKNOWN) {
-    return TSDB_CODE_SUCCESS;
-  }
-
-  bool isOrdered = true;
-  int32_t lastColIdx = -1;
-  for (int32_t i = 0; i < spd->numOfBound; ++i) {
-    ASSERT(spd->cols[i].hasVal);
-    int32_t colIdx = spd->boundedColumns[i];
-    if (isOrdered) {
-      if (lastColIdx > colIdx) {
-        isOrdered = false;
-        break;
-      } else {
-        lastColIdx = colIdx;
-      }
-    }
-  }
 
-  spd->orderStatus = isOrdered ? ORDER_STATUS_ORDERED : ORDER_STATUS_DISORDERED;
 
-  if (isOrdered) {
-    spd->colIdxInfo = NULL;
-  } else {
-    spd->colIdxInfo = calloc(spd->numOfBound, sizeof(SBoundIdxInfo));
-    if (spd->colIdxInfo == NULL) {
-      return TSDB_CODE_TSC_OUT_OF_MEMORY;
-    }
-    SBoundIdxInfo* pColIdx = spd->colIdxInfo;
-    for (uint16_t i = 0; i < spd->numOfBound; ++i) {
-      pColIdx[i].schemaColIdx = (uint16_t)spd->boundedColumns[i];
-      pColIdx[i].boundIdx = i;
-    }
-    qsort(pColIdx, spd->numOfBound, sizeof(SBoundIdxInfo), schemaIdxCompar);
-    for (uint16_t i = 0; i < spd->numOfBound; ++i) {
-      pColIdx[i].finalIdx = i;
-    }
-    qsort(pColIdx, spd->numOfBound, sizeof(SBoundIdxInfo), boundIdxCompar);
-  }
 
-  return TSDB_CODE_SUCCESS;
-}
-
-/**
- *  Refactor the raw payload structure to K-V format as the in tsParseOneRow()
- */
-int32_t fillTablesPayload(SSqlObj* pSql) {
-  SSqlCmd* pCmd = &pSql->cmd;
-  int      code = TSDB_CODE_SUCCESS;
-
-  STableDataBlocks** p = taosHashIterate(pCmd->insertParam.pTableBlockHashList, NULL);
-
-  STableDataBlocks* pOneTableBlock = *p;
-  while (pOneTableBlock) {
-    SSubmitBlk* pBlocks = (SSubmitBlk*)pOneTableBlock->pData;
-
-    if (pBlocks->numOfRows > 0) {
-      initSMemRowHelper(&pOneTableBlock->rowHelper, tscGetTableSchema(pOneTableBlock->pTableMeta),
-                        tscGetNumOfColumns(pOneTableBlock->pTableMeta), 0);
-      if ((code = initPayloadEnv(pOneTableBlock, pBlocks->numOfRows)) != TSDB_CODE_SUCCESS) {
-        return code;
-      }
-      if ((code = refactorPayload(pOneTableBlock, pBlocks->numOfRows)) != TSDB_CODE_SUCCESS) {
-        return code;
-      };
-    }
-
-    p = taosHashIterate(pCmd->insertParam.pTableBlockHashList, p);
-    if (p == NULL) {
-      break;
-    }
-
-    pOneTableBlock = *p;
-  }
-
-  return code;
-}
-  ////////////////////////////////////////////////////////////////////////////////
-  // functions for insertion statement preparation
-  static int doBindParam(STableDataBlocks* pBlock, char* data, SParamInfo* param, TAOS_BIND* bind, int32_t colNum) {
+////////////////////////////////////////////////////////////////////////////////
+// functions for insertion statement preparation
+static FORCE_INLINE int doBindParam(STableDataBlocks* pBlock, char* data, SParamInfo* param, TAOS_BIND* bind, int32_t colNum) {
     if (bind->is_null != NULL && *(bind->is_null)) {
       setNull(data + param->offset, param->type, param->bytes);
       return TSDB_CODE_SUCCESS;
@@ -949,25 +748,25 @@ int32_t fillTablesPayload(SSqlObj* pSql) {
     case TSDB_DATA_TYPE_BOOL:
     case TSDB_DATA_TYPE_TINYINT:
     case TSDB_DATA_TYPE_UTINYINT:
-      size = 1;
+      *(uint8_t *)(data + param->offset) = *(uint8_t *)bind->buffer;
       break;
 
     case TSDB_DATA_TYPE_SMALLINT:
     case TSDB_DATA_TYPE_USMALLINT:
-      size = 2;
+      *(uint16_t *)(data + param->offset) = *(uint16_t *)bind->buffer;
       break;
 
     case TSDB_DATA_TYPE_INT:
     case TSDB_DATA_TYPE_UINT:
     case TSDB_DATA_TYPE_FLOAT:
-      size = 4;
+      *(uint32_t *)(data + param->offset) = *(uint32_t *)bind->buffer;
       break;
 
     case TSDB_DATA_TYPE_BIGINT:
     case TSDB_DATA_TYPE_UBIGINT:
     case TSDB_DATA_TYPE_DOUBLE:
     case TSDB_DATA_TYPE_TIMESTAMP:
-      size = 8;
+      *(uint64_t *)(data + param->offset) = *(uint64_t *)bind->buffer;
       break;
 
     case TSDB_DATA_TYPE_BINARY:
@@ -993,7 +792,6 @@ int32_t fillTablesPayload(SSqlObj* pSql) {
       return TSDB_CODE_TSC_INVALID_VALUE;
   }
 
-  memcpy(data + param->offset, bind->buffer, size);
   if (param->offset == 0) {
     if (tsCheckTimestamp(pBlock, data + param->offset) != TSDB_CODE_SUCCESS) {
       tscError("invalid timestamp");
@@ -1004,6 +802,58 @@ int32_t fillTablesPayload(SSqlObj* pSql) {
   return TSDB_CODE_SUCCESS;
 }
 
+static int32_t insertStmtGenLastBlock(STableDataBlocks** lastBlock, STableDataBlocks* pBlock) {
+  *lastBlock = (STableDataBlocks*)malloc(sizeof(STableDataBlocks));
+  memcpy(*lastBlock, pBlock, sizeof(STableDataBlocks));
+  (*lastBlock)->cloned = true;
+  
+  (*lastBlock)->pData    = NULL;
+  (*lastBlock)->ordered  = true;
+  (*lastBlock)->prevTS   = INT64_MIN;
+  (*lastBlock)->size     = sizeof(SSubmitBlk);
+  (*lastBlock)->tsSource = -1;
+
+  return TSDB_CODE_SUCCESS;
+}
+
+
+static int32_t insertStmtGenBlock(STscStmt* pStmt, STableDataBlocks** pBlock, STableMeta* pTableMeta, SName* name) {
+  int32_t code = 0;
+  
+  if (pStmt->mtb.lastBlock == NULL) {
+    tscError("no previous data block");
+    return TSDB_CODE_TSC_APP_ERROR;
+  }
+
+  int32_t msize = tscGetTableMetaSize(pTableMeta);
+  int32_t tsize = sizeof(STableDataBlocks) + msize;
+
+  void *t = malloc(tsize);
+  *pBlock = t;
+
+  memcpy(*pBlock, pStmt->mtb.lastBlock, sizeof(STableDataBlocks));
+
+  t = (char *)t + sizeof(STableDataBlocks);
+  (*pBlock)->pTableMeta = t;
+  memcpy((*pBlock)->pTableMeta, pTableMeta, msize);
+
+  (*pBlock)->pData = malloc((*pBlock)->nAllocSize);
+
+  (*pBlock)->vgId     = (*pBlock)->pTableMeta->vgId;
+
+  tNameAssign(&(*pBlock)->tableName, name);
+  
+  SSubmitBlk* blk = (SSubmitBlk*)(*pBlock)->pData;
+  memset(blk, 0, sizeof(*blk));
+  
+  code = tsSetBlockInfo(blk, pTableMeta, 0);
+  if (code != TSDB_CODE_SUCCESS) {
+    STMT_RET(code);
+  }
+
+  return TSDB_CODE_SUCCESS;
+}
+
 
 static int doBindBatchParam(STableDataBlocks* pBlock, SParamInfo* param, TAOS_MULTI_BIND* bind, int32_t rowNum) {
   if (bind->buffer_type != param->type || !isValidDataType(param->type)) {
@@ -1309,12 +1159,9 @@ static int insertStmtExecute(STscStmt* stmt) {
   pBlk->uid = pTableMeta->id.uid;
   pBlk->tid = pTableMeta->id.tid;
 
-  int code = fillTablesPayload(stmt->pSql);
-  if (code != TSDB_CODE_SUCCESS) {
-    return code;
-  }
+  fillTablesColumnsNull(stmt->pSql);
 
-  code = tscMergeTableDataBlocks(&stmt->pSql->cmd.insertParam, false);
+  int code = tscMergeTableDataBlocks(&stmt->pSql->cmd.insertParam, false);
   if (code != TSDB_CODE_SUCCESS) {
     return code;
   }
@@ -1391,7 +1238,7 @@ static int insertBatchStmtExecute(STscStmt* pStmt) {
     return TSDB_CODE_TSC_APP_ERROR;
   }
 
-  fillTablesPayload(pStmt->pSql);
+  fillTablesColumnsNull(pStmt->pSql);
 
   if ((code = tscMergeTableDataBlocks(&pStmt->pSql->cmd.insertParam, false)) != TSDB_CODE_SUCCESS) {
     return code;
@@ -1433,11 +1280,11 @@ int stmtParseInsertTbTags(SSqlObj* pSql, STscStmt* pStmt) {
     pStmt->mtb.tbname = sToken;
     pStmt->mtb.nameSet = false;
     if (pStmt->mtb.pTableHash == NULL) {
-      pStmt->mtb.pTableHash = taosHashInit(16, taosGetDefaultHashFunction(TSDB_DATA_TYPE_BINARY), true, false);
+      pStmt->mtb.pTableHash = taosHashInit(128, taosGetDefaultHashFunction(TSDB_DATA_TYPE_BINARY), true, false);
     }
 
     if (pStmt->mtb.pTableBlockHashList == NULL) {
-      pStmt->mtb.pTableBlockHashList = taosHashInit(16, taosGetDefaultHashFunction(TSDB_DATA_TYPE_BIGINT), true, false);
+      pStmt->mtb.pTableBlockHashList = taosHashInit(128, taosGetDefaultHashFunction(TSDB_DATA_TYPE_BIGINT), true, false);
     }
 
     pStmt->mtb.tagSet = true;
@@ -1728,6 +1575,7 @@ int taos_stmt_prepare(TAOS_STMT* stmt, const char* sql, unsigned long length) {
 
 int taos_stmt_set_tbname_tags(TAOS_STMT* stmt, const char* name, TAOS_BIND* tags) {
   STscStmt* pStmt = (STscStmt*)stmt;
+  int32_t code = 0;
 
   if (stmt == NULL || pStmt->pSql == NULL || pStmt->taos == NULL) {
     STMT_RET(TSDB_CODE_TSC_DISCONNECTED);
@@ -1765,6 +1613,9 @@ int taos_stmt_set_tbname_tags(TAOS_STMT* stmt, const char* name, TAOS_BIND* tags
 
     SSubmitBlk* pBlk = (SSubmitBlk*) (*t1)->pData;
     pCmd->batchSize = pBlk->numOfRows;
+    if (pBlk->numOfRows == 0) {
+      (*t1)->prevTS = INT64_MIN;
+    }
 
     tsSetBlockInfo(pBlk, (*t1)->pTableMeta, pBlk->numOfRows);
 
@@ -1774,6 +1625,51 @@ int taos_stmt_set_tbname_tags(TAOS_STMT* stmt, const char* name, TAOS_BIND* tags
     STMT_RET(TSDB_CODE_SUCCESS);
   }
 
+  if (pStmt->mtb.subSet && taosHashGetSize(pStmt->mtb.pTableHash) > 0) {
+    STableMetaInfo* pTableMetaInfo = tscGetTableMetaInfoFromCmd(pCmd, 0);
+    STableMeta* pTableMeta = pTableMetaInfo->pTableMeta;
+    char sTableName[TSDB_TABLE_FNAME_LEN];
+    strncpy(sTableName, pTableMeta->sTableName, sizeof(sTableName));
+
+    SStrToken tname = {0};
+    tname.type = TK_STRING;
+    tname.z = (char *)name;
+    tname.n = (uint32_t)strlen(name);
+    SName fullname = {0};
+    tscSetTableFullName(&fullname, &tname, pSql);
+
+    memcpy(&pTableMetaInfo->name, &fullname, sizeof(fullname));
+
+    code = tscGetTableMeta(pSql, pTableMetaInfo);
+    if (code != TSDB_CODE_SUCCESS) {
+      STMT_RET(code);
+    }
+
+    pTableMeta = pTableMetaInfo->pTableMeta;
+
+    if (strcmp(sTableName, pTableMeta->sTableName)) {
+      tscError("0x%"PRIx64" only tables belongs to one stable is allowed", pSql->self);
+      STMT_RET(TSDB_CODE_TSC_APP_ERROR);
+    }
+
+    STableDataBlocks* pBlock = NULL;
+
+    insertStmtGenBlock(pStmt, &pBlock, pTableMeta, &pTableMetaInfo->name);
+
+    pCmd->batchSize = 0;
+    
+    pStmt->mtb.currentUid = pTableMeta->id.uid;
+    pStmt->mtb.tbNum++;
+    
+    taosHashPut(pCmd->insertParam.pTableBlockHashList, (void *)&pStmt->mtb.currentUid, sizeof(pStmt->mtb.currentUid), (void*)&pBlock, POINTER_BYTES);
+    taosHashPut(pStmt->mtb.pTableBlockHashList, (void *)&pStmt->mtb.currentUid, sizeof(pStmt->mtb.currentUid), (void*)&pBlock, POINTER_BYTES);
+    taosHashPut(pStmt->mtb.pTableHash, name, strlen(name), (char*) &pTableMeta->id.uid, sizeof(pTableMeta->id.uid));
+
+    tscDebug("0x%"PRIx64" table:%s is prepared, uid:%" PRIx64, pSql->self, name, pStmt->mtb.currentUid);
+    
+    STMT_RET(TSDB_CODE_SUCCESS);
+  }
+
   if (pStmt->mtb.tagSet) {
     pStmt->mtb.tbname = tscReplaceStrToken(&pSql->sqlstr, &pStmt->mtb.tbname, name);
   } else {
@@ -1802,7 +1698,7 @@ int taos_stmt_set_tbname_tags(TAOS_STMT* stmt, const char* name, TAOS_BIND* tags
     pCmd->insertParam.pTableBlockHashList = hashList;
   }
 
-  int32_t code = tsParseSql(pStmt->pSql, true);
+  code = tsParseSql(pStmt->pSql, true);
   if (code == TSDB_CODE_TSC_ACTION_IN_PROGRESS) {
     // wait for the callback function to post the semaphore
     tsem_wait(&pStmt->pSql->rspSem);
@@ -1830,6 +1726,10 @@ int taos_stmt_set_tbname_tags(TAOS_STMT* stmt, const char* name, TAOS_BIND* tags
     taosHashPut(pStmt->mtb.pTableBlockHashList, (void *)&pStmt->mtb.currentUid, sizeof(pStmt->mtb.currentUid), (void*)&pBlock, POINTER_BYTES);
     taosHashPut(pStmt->mtb.pTableHash, name, strlen(name), (char*) &pTableMeta->id.uid, sizeof(pTableMeta->id.uid));
 
+    if (pStmt->mtb.lastBlock == NULL) {
+      insertStmtGenLastBlock(&pStmt->mtb.lastBlock, pBlock);
+    }
+
     tscDebug("0x%"PRIx64" table:%s is prepared, uid:%" PRIx64, pSql->self, name, pStmt->mtb.currentUid);
   }
 
@@ -1837,7 +1737,17 @@ int taos_stmt_set_tbname_tags(TAOS_STMT* stmt, const char* name, TAOS_BIND* tags
 }
 
 
+int taos_stmt_set_sub_tbname(TAOS_STMT* stmt, const char* name) {
+  STscStmt* pStmt = (STscStmt*)stmt;
+  pStmt->mtb.subSet = true;
+  return taos_stmt_set_tbname_tags(stmt, name, NULL);
+}
+
+
+
 int taos_stmt_set_tbname(TAOS_STMT* stmt, const char* name) {
+  STscStmt* pStmt = (STscStmt*)stmt;
+  pStmt->mtb.subSet = false;
   return taos_stmt_set_tbname_tags(stmt, name, NULL);
 }
 
@@ -1861,6 +1771,7 @@ int taos_stmt_close(TAOS_STMT* stmt) {
       if (pStmt->pSql && pStmt->pSql->res.code != 0) {
         rmMeta = true;
       }
+      tscDestroyDataBlock(pStmt->mtb.lastBlock, rmMeta);
       pStmt->mtb.pTableBlockHashList = tscDestroyBlockHashTable(pStmt->mtb.pTableBlockHashList, rmMeta);
       taosHashCleanup(pStmt->pSql->cmd.insertParam.pTableBlockHashList);
       pStmt->pSql->cmd.insertParam.pTableBlockHashList = NULL;
@@ -1895,6 +1806,8 @@ int taos_stmt_bind_param(TAOS_STMT* stmt, TAOS_BIND* bind) {
 
     pStmt->last = STMT_BIND;
 
+    tscDebug("tableId:%" PRIu64 ", try to bind one row", pStmt->mtb.currentUid);
+
     STMT_RET(insertStmtBindParam(pStmt, bind));
   } else {
     STMT_RET(normalStmtBindParam(pStmt, bind));
@@ -2014,6 +1927,7 @@ int taos_stmt_execute(TAOS_STMT* stmt) {
 
     pStmt->last = STMT_EXECUTE;
 
+    pStmt->pSql->cmd.insertParam.payloadType = PAYLOAD_TYPE_RAW;
     if (pStmt->multiTbInsert) {
       ret = insertBatchStmtExecute(pStmt);
     } else {

src/client/src/tscSQLParser.c

@@ -8037,6 +8037,28 @@ static void freeElem(void* p) {
   tfree(*(char**)p);
 }
 
+int32_t tnameComparFn(const void* p1, const void* p2) {
+  SName* pn1 = (SName*)p1;
+  SName* pn2 = (SName*)p2;
+
+  int32_t ret = strncmp(pn1->acctId, pn2->acctId, tListLen(pn1->acctId));
+  if (ret != 0) {
+    return ret > 0? 1:-1;
+  } else {
+    ret = strncmp(pn1->dbname, pn2->dbname, tListLen(pn1->dbname));
+    if (ret != 0) {
+      return ret > 0? 1:-1;
+    } else {
+      ret = strncmp(pn1->tname, pn2->tname, tListLen(pn1->tname));
+      if (ret != 0) {
+        return ret > 0? 1:-1;
+      } else {
+        return 0;
+      }
+    }
+  }
+}
+
 int32_t loadAllTableMeta(SSqlObj* pSql, struct SSqlInfo* pInfo) {
   SSqlCmd* pCmd = &pSql->cmd;
 
@@ -8091,6 +8113,9 @@ int32_t loadAllTableMeta(SSqlObj* pSql, struct SSqlInfo* pInfo) {
   plist = taosArrayInit(4, POINTER_BYTES);
   pVgroupList = taosArrayInit(4, POINTER_BYTES);
 
+  taosArraySort(tableNameList, tnameComparFn);
+  taosArrayRemoveDuplicate(tableNameList, tnameComparFn, NULL);
+
   size_t numOfTables = taosArrayGetSize(tableNameList);
   for (int32_t i = 0; i < numOfTables; ++i) {
     SName* pname = taosArrayGet(tableNameList, i);
@@ -8111,8 +8136,7 @@ int32_t loadAllTableMeta(SSqlObj* pSql, struct SSqlInfo* pInfo) {
           continue;
         }
       } else if (pTableMeta->tableType == TSDB_SUPER_TABLE) {
-        // the vgroup list of a super table is not kept in local buffer, so here need retrieve it
-        // from the mnode each time
+        // the vgroup list of super table is not kept in local buffer, so here need retrieve it from the mnode each time
         char* t = strdup(name);
         taosArrayPush(pVgroupList, &t);
       }
@@ -8139,6 +8163,7 @@ int32_t loadAllTableMeta(SSqlObj* pSql, struct SSqlInfo* pInfo) {
   if (pInfo->funcs) {
     funcSize = taosArrayGetSize(pInfo->funcs);
   }
+
   if (funcSize > 0) {
     for (size_t i = 0; i < funcSize; ++i) {
       SStrToken* t = taosArrayGet(pInfo->funcs, i);

src/client/src/tscUtil.c

@@ -1315,8 +1315,7 @@ void tscFreeQueryInfo(SSqlCmd* pCmd, bool removeMeta) {
     return;
   }
 
-  SQueryInfo* pQueryInfo = tscGetQueryInfo(pCmd);
-
+  SQueryInfo* pQueryInfo = pCmd->pQueryInfo;
   while(pQueryInfo != NULL) {
     SQueryInfo* p = pQueryInfo->sibling;
 
@@ -1518,12 +1517,6 @@ void tscDestroyDataBlock(STableDataBlocks* pDataBlock, bool removeMeta) {
   }
 
   tfree(pDataBlock->pData);
-  tfree(pDataBlock->params);
-
-  // free the refcount for metermeta
-  if (pDataBlock->pTableMeta != NULL) {
-    tfree(pDataBlock->pTableMeta);
-  }
 
   if (removeMeta) {
     char name[TSDB_TABLE_FNAME_LEN] = {0};
@@ -1532,7 +1525,17 @@ void tscDestroyDataBlock(STableDataBlocks* pDataBlock, bool removeMeta) {
     taosHashRemove(tscTableMetaInfo, name, strnlen(name, TSDB_TABLE_FNAME_LEN));
   }
 
+  if (!pDataBlock->cloned) {
+    tfree(pDataBlock->params);
+
+    // free the refcount for metermeta
+    if (pDataBlock->pTableMeta != NULL) {
+      tfree(pDataBlock->pTableMeta);
+    }
+
     tscDestroyBoundColumnInfo(&pDataBlock->boundColumnInfo);
+  }
+
   tfree(pDataBlock);
 }
 
@@ -1598,7 +1601,7 @@ void freeUdfInfo(SUdfInfo* pUdfInfo) {
   taosCloseDll(pUdfInfo->handle);
 }
 
-
+// todo refactor
 void*  tscDestroyUdfArrayList(SArray* pUdfList) {
   if (pUdfList == NULL) {
     return NULL;
@@ -1711,12 +1714,14 @@ int32_t tscCreateDataBlock(size_t defaultSize, int32_t rowSize, int32_t startOff
     dataBuf->nAllocSize = dataBuf->headerSize * 2;
   }
   
-  dataBuf->pData = calloc(1, dataBuf->nAllocSize);
+  //dataBuf->pData = calloc(1, dataBuf->nAllocSize);
+  dataBuf->pData = malloc(dataBuf->nAllocSize);
   if (dataBuf->pData == NULL) {
     tscError("failed to allocated memory, reason:%s", strerror(errno));
     tfree(dataBuf);
     return TSDB_CODE_TSC_OUT_OF_MEMORY;
   }
+  memset(dataBuf->pData, 0, sizeof(SSubmitBlk));
 
   //Here we keep the tableMeta to avoid it to be remove by other threads.
   dataBuf->pTableMeta = tscTableMetaDup(pTableMeta);
@@ -1813,14 +1818,14 @@ static SMemRow tdGenMemRowFromBuilder(SMemRowBuilder* pBuilder) {
         p = payloadNextCol(p);
         ++i;
       } else {
-        tdAppendColVal(trow, tdGetNullVal(pSchema[j].type), pSchema[j].type, toffset);
+        tdAppendColVal(trow, getNullValue(pSchema[j].type), pSchema[j].type, toffset);
         toffset += TYPE_BYTES[pSchema[j].type];
         ++j;
       }
     }
 
     while (j < nCols) {
-      tdAppendColVal(trow, tdGetNullVal(pSchema[j].type), pSchema[j].type, toffset);
+      tdAppendColVal(trow, getNullValue(pSchema[j].type), pSchema[j].type, toffset);
       toffset += TYPE_BYTES[pSchema[j].type];
       ++j;
     }
@@ -1860,7 +1865,8 @@ static SMemRow tdGenMemRowFromBuilder(SMemRowBuilder* pBuilder) {
 }
 
 // Erase the empty space reserved for binary data
-static int trimDataBlock(void* pDataBlock, STableDataBlocks* pTableDataBlock, bool includeSchema, SBlockKeyTuple *blkKeyTuple) {
+static int trimDataBlock(void* pDataBlock, STableDataBlocks* pTableDataBlock, SInsertStatementParam* insertParam,
+                         SBlockKeyTuple* blkKeyTuple) {
   // TODO: optimize this function, handle the case while binary is not presented
   STableMeta*     pTableMeta = pTableDataBlock->pTableMeta;
   STableComInfo   tinfo = tscGetTableInfo(pTableMeta);
@@ -1873,7 +1879,7 @@ static int trimDataBlock(void* pDataBlock, STableDataBlocks* pTableDataBlock, bo
   int32_t flen = 0;  // original total length of row
 
   // schema needs to be included into the submit data block
-  if (includeSchema) {
+  if (insertParam->schemaAttached) {
     int32_t numOfCols = tscGetNumOfColumns(pTableDataBlock->pTableMeta);
     for(int32_t j = 0; j < numOfCols; ++j) {
       STColumn* pCol = (STColumn*) pDataBlock;
@@ -1900,6 +1906,25 @@ static int trimDataBlock(void* pDataBlock, STableDataBlocks* pTableDataBlock, bo
   pBlock->dataLen = 0;
   int32_t numOfRows = htons(pBlock->numOfRows);
 
+  if (IS_RAW_PAYLOAD(insertParam->payloadType)) {
+    for (int32_t i = 0; i < numOfRows; ++i) {
+      SMemRow memRow = (SMemRow)pDataBlock;
+      memRowSetType(memRow, SMEM_ROW_DATA);
+      SDataRow trow = memRowDataBody(memRow);
+      dataRowSetLen(trow, (uint16_t)(TD_DATA_ROW_HEAD_SIZE + flen));
+      dataRowSetVersion(trow, pTableMeta->sversion);
+
+      int toffset = 0;
+      for (int32_t j = 0; j < tinfo.numOfColumns; j++) {
+        tdAppendColVal(trow, p, pSchema[j].type, toffset);
+        toffset += TYPE_BYTES[pSchema[j].type];
+        p += pSchema[j].bytes;
+      }
+
+      pDataBlock = (char*)pDataBlock + memRowTLen(memRow);
+      pBlock->dataLen += memRowTLen(memRow);
+    }
+  } else {
     SMemRowBuilder rowBuilder;
     rowBuilder.pSchema = pSchema;
     rowBuilder.sversion = pTableMeta->sversion;
@@ -1913,6 +1938,7 @@ static int trimDataBlock(void* pDataBlock, STableDataBlocks* pTableDataBlock, bo
       rowBuilder.buf = (blkKeyTuple + i)->payloadAddr;
       tdGenMemRowFromBuilder(&rowBuilder);
     }
+  }
 
   int32_t len = pBlock->dataLen + pBlock->schemaLen;
   pBlock->dataLen = htonl(pBlock->dataLen);
@@ -1936,16 +1962,14 @@ static int32_t getRowExpandSize(STableMeta* pTableMeta) {
 static void extractTableNameList(SInsertStatementParam *pInsertParam, bool freeBlockMap) {
   pInsertParam->numOfTables = (int32_t) taosHashGetSize(pInsertParam->pTableBlockHashList);
   if (pInsertParam->pTableNameList == NULL) {
-    pInsertParam->pTableNameList = calloc(pInsertParam->numOfTables, POINTER_BYTES);
-  } else {
-    memset(pInsertParam->pTableNameList, 0, pInsertParam->numOfTables * POINTER_BYTES);
+    pInsertParam->pTableNameList = malloc(pInsertParam->numOfTables * POINTER_BYTES);
   }
 
   STableDataBlocks **p1 = taosHashIterate(pInsertParam->pTableBlockHashList, NULL);
   int32_t i = 0;
   while(p1) {
     STableDataBlocks* pBlocks = *p1;
-    tfree(pInsertParam->pTableNameList[i]);
+    //tfree(pInsertParam->pTableNameList[i]);
 
     pInsertParam->pTableNameList[i++] = tNameDup(&pBlocks->tableName);
     p1 = taosHashIterate(pInsertParam->pTableBlockHashList, p1);
@@ -1959,6 +1983,7 @@ static void extractTableNameList(SInsertStatementParam *pInsertParam, bool freeB
 int32_t tscMergeTableDataBlocks(SInsertStatementParam *pInsertParam, bool freeBlockMap) {
   const int INSERT_HEAD_SIZE = sizeof(SMsgDesc) + sizeof(SSubmitMsg);
   int       code = 0;
+  bool      isRawPayload = IS_RAW_PAYLOAD(pInsertParam->payloadType);
   void*     pVnodeDataBlockHashList = taosHashInit(128, taosGetDefaultHashFunction(TSDB_DATA_TYPE_BIGINT), true, false);
   SArray*   pVnodeDataBlockList = taosArrayInit(8, POINTER_BYTES);
 
@@ -1988,14 +2013,12 @@ int32_t tscMergeTableDataBlocks(SInsertStatementParam *pInsertParam, bool freeBl
       int64_t destSize = dataBuf->size + pOneTableBlock->size + pBlocks->numOfRows * expandSize + sizeof(STColumn) * tscGetNumOfColumns(pOneTableBlock->pTableMeta);
 
       if (dataBuf->nAllocSize < destSize) {
-        while (dataBuf->nAllocSize < destSize) {
-          dataBuf->nAllocSize = (uint32_t)(dataBuf->nAllocSize * 1.5);
-        }
+        dataBuf->nAllocSize = (uint32_t)(destSize * 1.5);
 
         char* tmp = realloc(dataBuf->pData, dataBuf->nAllocSize);
         if (tmp != NULL) {
           dataBuf->pData = tmp;
-          memset(dataBuf->pData + dataBuf->size, 0, dataBuf->nAllocSize - dataBuf->size);
+          //memset(dataBuf->pData + dataBuf->size, 0, dataBuf->nAllocSize - dataBuf->size);
         } else {  // failed to allocate memory, free already allocated memory and return error code
           tscError("0x%"PRIx64" failed to allocate memory for merging submit block, size:%d", pInsertParam->objectId, dataBuf->nAllocSize);
 
@@ -2008,6 +2031,14 @@ int32_t tscMergeTableDataBlocks(SInsertStatementParam *pInsertParam, bool freeBl
         }
       }
 
+      if (isRawPayload) {
+        tscSortRemoveDataBlockDupRowsRaw(pOneTableBlock);
+        char* ekey = (char*)pBlocks->data + pOneTableBlock->rowSize * (pBlocks->numOfRows - 1);
+
+        tscDebug("0x%" PRIx64 " name:%s, tid:%d rows:%d sversion:%d skey:%" PRId64 ", ekey:%" PRId64,
+                 pInsertParam->objectId, tNameGetTableName(&pOneTableBlock->tableName), pBlocks->tid,
+                 pBlocks->numOfRows, pBlocks->sversion, GET_INT64_VAL(pBlocks->data), GET_INT64_VAL(ekey));
+      } else {
         if ((code = tscSortRemoveDataBlockDupRows(pOneTableBlock, &blkKeyInfo)) != 0) {
           taosHashCleanup(pVnodeDataBlockHashList);
           tscDestroyBlockArrayList(pVnodeDataBlockList);
@@ -2015,13 +2046,13 @@ int32_t tscMergeTableDataBlocks(SInsertStatementParam *pInsertParam, bool freeBl
           tfree(blkKeyInfo.pKeyTuple);
           return code;
         }
-
         ASSERT(blkKeyInfo.pKeyTuple != NULL && pBlocks->numOfRows > 0);
 
         SBlockKeyTuple* pLastKeyTuple = blkKeyInfo.pKeyTuple + pBlocks->numOfRows - 1;
         tscDebug("0x%" PRIx64 " name:%s, tid:%d rows:%d sversion:%d skey:%" PRId64 ", ekey:%" PRId64,
-               pInsertParam->objectId, tNameGetTableName(&pOneTableBlock->tableName), pBlocks->tid, pBlocks->numOfRows,
-               pBlocks->sversion, blkKeyInfo.pKeyTuple->skey, pLastKeyTuple->skey);
+                 pInsertParam->objectId, tNameGetTableName(&pOneTableBlock->tableName), pBlocks->tid,
+                 pBlocks->numOfRows, pBlocks->sversion, blkKeyInfo.pKeyTuple->skey, pLastKeyTuple->skey);
+      }
       
       int32_t len = pBlocks->numOfRows * (pOneTableBlock->rowSize + expandSize) + sizeof(STColumn) * tscGetNumOfColumns(pOneTableBlock->pTableMeta);
 
@@ -2032,7 +2063,7 @@ int32_t tscMergeTableDataBlocks(SInsertStatementParam *pInsertParam, bool freeBl
       pBlocks->schemaLen = 0;
 
       // erase the empty space reserved for binary data
-      int32_t finalLen = trimDataBlock(dataBuf->pData + dataBuf->size, pOneTableBlock, pInsertParam->schemaAttached, blkKeyInfo.pKeyTuple);
+      int32_t finalLen = trimDataBlock(dataBuf->pData + dataBuf->size, pOneTableBlock, pInsertParam, blkKeyInfo.pKeyTuple);
       assert(finalLen <= len);
 
       dataBuf->size += (finalLen + sizeof(SSubmitBlk));
@@ -3097,6 +3128,7 @@ void tscInitQueryInfo(SQueryInfo* pQueryInfo) {
 int32_t tscAddQueryInfo(SSqlCmd* pCmd) {
   assert(pCmd != NULL);
   SQueryInfo* pQueryInfo = calloc(1, sizeof(SQueryInfo));
+
   if (pQueryInfo == NULL) {
     return TSDB_CODE_TSC_OUT_OF_MEMORY;
   }
@@ -3889,7 +3921,7 @@ bool tscIsUpdateQuery(SSqlObj* pSql) {
   }
 
   SSqlCmd* pCmd = &pSql->cmd;
-  return ((pCmd->command >= TSDB_SQL_INSERT && pCmd->command <= TSDB_SQL_DROP_DNODE) || TSDB_SQL_USE_DB == pCmd->command);
+  return ((pCmd->command >= TSDB_SQL_INSERT && pCmd->command <= TSDB_SQL_DROP_DNODE) || TSDB_SQL_RESET_CACHE == pCmd->command || TSDB_SQL_USE_DB == pCmd->command);
 }
 
 char* tscGetSqlStr(SSqlObj* pSql) {
@@ -4079,17 +4111,21 @@ void tscTryQueryNextClause(SSqlObj* pSql, __async_cb_func_t fp) {
   //backup the total number of result first
   int64_t num = pRes->numOfTotal + pRes->numOfClauseTotal;
 
-
   // DON't free final since it may be recoreded and used later in APP
   TAOS_FIELD* finalBk = pRes->final;
   pRes->final = NULL;
   tscFreeSqlResult(pSql);
-  pRes->final = finalBk;
 
+  pRes->final = finalBk;
   pRes->numOfTotal = num;
 
+  for(int32_t i = 0; i < pSql->subState.numOfSub; ++i) {
+    taos_free_result(pSql->pSubs[i]);
+  }
+
   tfree(pSql->pSubs);
   pSql->subState.numOfSub = 0;
+
   pSql->fp = fp;
 
   tscDebug("0x%"PRIx64" try data in the next subclause", pSql->self);
@@ -4350,7 +4386,7 @@ STableMeta* tscTableMetaDup(STableMeta* pTableMeta) {
   assert(pTableMeta != NULL);
   size_t size = tscGetTableMetaSize(pTableMeta);
 
-  STableMeta* p = calloc(1, size);
+  STableMeta* p = malloc(size);
   memcpy(p, pTableMeta, size);
   return p;
 }
@@ -4729,6 +4765,20 @@ int32_t nameComparFn(const void* n1, const void* n2) {
   }
 }
 
+static void freeContent(void* p) {
+  char* ptr = *(char**)p;
+  tfree(ptr);
+}
+
+static int32_t contCompare(const void* p1, const void* p2) {
+  int32_t ret = strcmp(p1, p2);
+  if (ret == 0) {
+    return 0;
+  } else {
+    return ret > 0 ? 1:-1;
+  }
+}
+
 int tscTransferTableNameList(SSqlObj *pSql, const char *pNameList, int32_t length, SArray* pNameArray) {
   SSqlCmd *pCmd = &pSql->cmd;
 
@@ -4776,32 +4826,7 @@ int tscTransferTableNameList(SSqlObj *pSql, const char *pNameList, int32_t lengt
   }
 
   taosArraySort(pNameArray, nameComparFn);
-
-  int32_t pos = 0;
-  for(int32_t i = 1; i < len; ++i) {
-    char** p1 = taosArrayGet(pNameArray, pos);
-    char** p2 = taosArrayGet(pNameArray, i);
-
-    if (strcmp(*p1, *p2) == 0) {
-      // do nothing
-    } else {
-      if (pos + 1 != i) {
-        char* p = taosArrayGetP(pNameArray, pos + 1);
-        tfree(p);
-        taosArraySet(pNameArray, pos + 1, p2);
-        pos += 1;
-      } else {
-        pos += 1;
-      }
-    }
-  }
-
-  for(int32_t i = pos + 1; i < pNameArray->size; ++i) {
-    char* p = taosArrayGetP(pNameArray, i);
-    tfree(p);
-  }
-
-  pNameArray->size = pos + 1;
+  taosArrayRemoveDuplicate(pNameArray, contCompare, freeContent);
   return TSDB_CODE_SUCCESS;
 }
 

src/common/inc/tdataformat.h

@@ -24,35 +24,6 @@
 extern "C" {
 #endif
 
-#pragma pack(push, 1)
-typedef struct {
-  VarDataLenT len;
-  uint8_t     data;
-} SBinaryNullT;
-
-typedef struct {
-  VarDataLenT len;
-  uint32_t    data;
-} SNCharNullT;
-#pragma pack(pop)
-
-extern const uint8_t      BoolNull;
-extern const uint8_t      TinyintNull;
-extern const uint16_t     SmallintNull;
-extern const uint32_t     IntNull;
-extern const uint64_t     BigintNull;
-extern const uint64_t     TimestampNull;
-extern const uint8_t      UTinyintNull;
-extern const uint16_t     USmallintNull;
-extern const uint32_t     UIntNull;
-extern const uint64_t     UBigintNull;
-extern const uint32_t     FloatNull;
-extern const uint64_t     DoubleNull;
-extern const SBinaryNullT BinaryNull;
-extern const SNCharNullT  NcharNull;
-
-const void *tdGetNullVal(int8_t type);
-
 #define STR_TO_VARSTR(x, str)                     \
   do {                                            \
     VarDataLenT __len = (VarDataLenT)strlen(str); \
@@ -287,7 +258,7 @@ void dataColSetNEleNull(SDataCol *pCol, int nEle, int maxPoints);
 // Get the data pointer from a column-wised data
 static FORCE_INLINE const void *tdGetColDataOfRow(SDataCol *pCol, int row) {
   if (isAllRowsNull(pCol)) {
-    return tdGetNullVal(pCol->type);
+    return getNullValue(pCol->type);
   }
   if (IS_VAR_DATA_TYPE(pCol->type)) {
     return POINTER_SHIFT(pCol->pData, pCol->dataOff[row]);

src/common/inc/tglobal.h

@@ -205,6 +205,16 @@ extern int32_t wDebugFlag;
 extern int32_t cqDebugFlag;
 extern int32_t debugFlag;
 
+#ifdef TD_TSZ
+// lossy 
+extern char lossyColumns[];
+extern double fPrecision;
+extern double dPrecision;
+extern uint32_t maxIntervals;
+extern uint32_t intervals;
+extern char Compressor[];
+#endif
+
 typedef struct {
   char dir[TSDB_FILENAME_LEN];
   int  level;

src/common/src/tdataformat.c

@@ -18,21 +18,6 @@
 #include "tcoding.h"
 #include "wchar.h"
 
-const uint8_t      BoolNull = TSDB_DATA_BOOL_NULL;
-const uint8_t      TinyintNull = TSDB_DATA_TINYINT_NULL;
-const uint16_t     SmallintNull = TSDB_DATA_SMALLINT_NULL;
-const uint32_t     IntNull = TSDB_DATA_INT_NULL;
-const uint64_t     BigintNull = TSDB_DATA_BIGINT_NULL;
-const uint64_t     TimestampNull = TSDB_DATA_BIGINT_NULL;
-const uint8_t      UTinyintNull = TSDB_DATA_UTINYINT_NULL;
-const uint16_t     USmallintNull = TSDB_DATA_USMALLINT_NULL;
-const uint32_t     UIntNull = TSDB_DATA_UINT_NULL;
-const uint64_t     UBigintNull = TSDB_DATA_UBIGINT_NULL;
-const uint32_t     FloatNull = TSDB_DATA_FLOAT_NULL;
-const uint64_t     DoubleNull = TSDB_DATA_DOUBLE_NULL;
-const SBinaryNullT BinaryNull = {1, TSDB_DATA_BINARY_NULL};
-const SNCharNullT  NcharNull = {4, TSDB_DATA_NCHAR_NULL};
-
 static void tdMergeTwoDataCols(SDataCols *target, SDataCols *src1, int *iter1, int limit1, SDataCols *src2, int *iter2,
                                int limit2, int tRows);
 
@@ -453,7 +438,7 @@ static void tdAppendDataRowToDataCol(SDataRow row, STSchema *pSchema, SDataCols
       SDataCol *pDataCol = &(pCols->cols[dcol]);
       if (rcol >= schemaNCols(pSchema)) {
         // dataColSetNullAt(pDataCol, pCols->numOfRows);
-        dataColAppendVal(pDataCol, tdGetNullVal(pDataCol->type), pCols->numOfRows, pCols->maxPoints);
+        dataColAppendVal(pDataCol, getNullValue(pDataCol->type), pCols->numOfRows, pCols->maxPoints);
         dcol++;
         continue;
       }
@@ -468,7 +453,7 @@ static void tdAppendDataRowToDataCol(SDataRow row, STSchema *pSchema, SDataCols
         rcol++;
       } else {
         // dataColSetNullAt(pDataCol, pCols->numOfRows);
-        dataColAppendVal(pDataCol, tdGetNullVal(pDataCol->type), pCols->numOfRows, pCols->maxPoints);
+        dataColAppendVal(pDataCol, getNullValue(pDataCol->type), pCols->numOfRows, pCols->maxPoints);
         dcol++;
       }
     }
@@ -498,7 +483,7 @@ static void tdAppendKvRowToDataCol(SKVRow row, STSchema *pSchema, SDataCols *pCo
       SDataCol *pDataCol = &(pCols->cols[dcol]);
       if (rcol >= nRowCols || rcol >= schemaNCols(pSchema)) {
         // dataColSetNullAt(pDataCol, pCols->numOfRows);
-        dataColAppendVal(pDataCol, tdGetNullVal(pDataCol->type), pCols->numOfRows, pCols->maxPoints);
+        dataColAppendVal(pDataCol, getNullValue(pDataCol->type), pCols->numOfRows, pCols->maxPoints);
         ++dcol;
         continue;
       }
@@ -514,7 +499,7 @@ static void tdAppendKvRowToDataCol(SKVRow row, STSchema *pSchema, SDataCols *pCo
         ++rcol;
       } else {
         // dataColSetNullAt(pDataCol, pCols->numOfRows);
-        dataColAppendVal(pDataCol, tdGetNullVal(pDataCol->type), pCols->numOfRows, pCols->maxPoints);
+        dataColAppendVal(pDataCol, getNullValue(pDataCol->type), pCols->numOfRows, pCols->maxPoints);
         ++dcol;
       }
     }
@@ -800,39 +785,3 @@ SKVRow tdGetKVRowFromBuilder(SKVRowBuilder *pBuilder) {
 
   return row;
 }
\ No newline at end of file
-
-const void *tdGetNullVal(int8_t type) {
-  switch (type) {
-    case TSDB_DATA_TYPE_BOOL:
-      return &BoolNull;
-    case TSDB_DATA_TYPE_TINYINT:
-      return &TinyintNull;
-    case TSDB_DATA_TYPE_SMALLINT:
-      return &SmallintNull;
-    case TSDB_DATA_TYPE_INT:
-      return &IntNull;
-    case TSDB_DATA_TYPE_BIGINT:
-      return &BigintNull;
-    case TSDB_DATA_TYPE_FLOAT:
-      return &FloatNull;
-    case TSDB_DATA_TYPE_DOUBLE:
-      return &DoubleNull;
-    case TSDB_DATA_TYPE_BINARY:
-      return &BinaryNull;
-    case TSDB_DATA_TYPE_TIMESTAMP:
-      return &TimestampNull;
-    case TSDB_DATA_TYPE_NCHAR:
-      return &NcharNull;
-    case TSDB_DATA_TYPE_UTINYINT:
-      return &UTinyintNull;
-    case TSDB_DATA_TYPE_USMALLINT:
-      return &USmallintNull;
-    case TSDB_DATA_TYPE_UINT:
-      return &UIntNull;
-    case TSDB_DATA_TYPE_UBIGINT:
-      return &UBigintNull;
-    default:
-      ASSERT(0);
-      return NULL;
-  }
-}
\ No newline at end of file

src/common/src/tglobal.c

@@ -244,6 +244,19 @@ int32_t tsdbDebugFlag = 131;
 int32_t cqDebugFlag = 131;
 int32_t fsDebugFlag = 135;
 
+#ifdef TD_TSZ
+//
+// lossy compress 6
+//
+char lossyColumns[32] = "";  // "float|double" means all float and double columns can be lossy compressed.  set empty can close lossy compress.
+// below option can take effect when tsLossyColumns not empty 
+double   fPrecision   = 1E-8;   // float column precision
+double   dPrecision   = 1E-16;  // double column precision
+uint32_t maxIntervals = 500;    // max intervals
+uint32_t intervals    = 100;    // intervals
+char     Compressor[32] = "ZSTD_COMPRESSOR"; // ZSTD_COMPRESSOR or GZIP_COMPRESSOR 
+#endif
+
 int32_t (*monStartSystemFp)() = NULL;
 void (*monStopSystemFp)() = NULL;
 void (*monExecuteSQLFp)(char *sql) = NULL;
@@ -1517,6 +1530,62 @@ static void doInitGlobalConfig(void) {
   cfg.ptrLength = tListLen(tsTempDir);
   cfg.unitType = TAOS_CFG_UTYPE_NONE;
   taosInitConfigOption(cfg);
+
+#ifdef TD_TSZ
+  // lossy compress
+  cfg.option = "lossyColumns";
+  cfg.ptr = lossyColumns;
+  cfg.valType = TAOS_CFG_VTYPE_STRING;
+  cfg.cfgType = TSDB_CFG_CTYPE_B_CONFIG;
+  cfg.minValue = 0;
+  cfg.maxValue = 0;
+  cfg.ptrLength = tListLen(lossyColumns);
+  cfg.unitType = TAOS_CFG_UTYPE_NONE;
+  taosInitConfigOption(cfg);
+
+  cfg.option = "fPrecision";
+  cfg.ptr = &fPrecision;
+  cfg.valType = TAOS_CFG_VTYPE_DOUBLE;
+  cfg.cfgType = TSDB_CFG_CTYPE_B_CONFIG;
+  cfg.minValue = MIN_FLOAT;
+  cfg.maxValue = MAX_FLOAT;
+  cfg.ptrLength = 0;
+  cfg.unitType = TAOS_CFG_UTYPE_NONE;
+
+  
+  taosInitConfigOption(cfg);
+
+  cfg.option = "dPrecision";
+  cfg.ptr = &dPrecision;
+  cfg.valType = TAOS_CFG_VTYPE_DOUBLE;
+  cfg.cfgType = TSDB_CFG_CTYPE_B_CONFIG;
+  cfg.minValue = MIN_FLOAT;
+  cfg.maxValue = MAX_FLOAT;
+  cfg.ptrLength = 0;
+  cfg.unitType = TAOS_CFG_UTYPE_NONE;
+  taosInitConfigOption(cfg);
+
+  cfg.option = "maxIntervals";
+  cfg.ptr = &maxIntervals;
+  cfg.valType = TAOS_CFG_VTYPE_INT32;
+  cfg.cfgType = TSDB_CFG_CTYPE_B_CONFIG;
+  cfg.minValue = 0;
+  cfg.maxValue = 65536;
+  cfg.ptrLength = 0;
+  cfg.unitType = TAOS_CFG_UTYPE_NONE;
+  taosInitConfigOption(cfg);
+
+  cfg.option = "intervals";
+  cfg.ptr = &intervals;
+  cfg.valType = TAOS_CFG_VTYPE_INT32;
+  cfg.cfgType = TSDB_CFG_CTYPE_B_CONFIG;
+  cfg.minValue = 0;
+  cfg.maxValue = 65536;
+  cfg.ptrLength = 0;
+  cfg.unitType = TAOS_CFG_UTYPE_NONE;
+  taosInitConfigOption(cfg);
+#endif
+
 }
 
 void taosInitGlobalCfg() {

src/common/src/tname.c

@@ -306,7 +306,7 @@ bool tIsValidName(const SName* name) {
 SName* tNameDup(const SName* name) {
   assert(name != NULL);
 
-  SName* p = calloc(1, sizeof(SName));
+  SName* p = malloc(sizeof(SName));
   memcpy(p, name, sizeof(SName));
   return p;
 }

src/common/src/ttypes.c

@@ -503,19 +503,21 @@ static uint8_t   nullTinyIntu = TSDB_DATA_UTINYINT_NULL;
 static uint16_t     nullSmallIntu = TSDB_DATA_USMALLINT_NULL;
 static uint32_t     nullIntu = TSDB_DATA_UINT_NULL;
 static uint64_t     nullBigIntu = TSDB_DATA_UBIGINT_NULL;
+static SBinaryNullT nullBinary = {1, TSDB_DATA_BINARY_NULL};
+static SNCharNullT  nullNchar = {4, TSDB_DATA_NCHAR_NULL};
 
-static union {
-  tstr str;
-  char pad[sizeof(tstr) + 4];
-} nullBinary = {.str = {.len = 1}}, nullNchar = {.str = {.len = 4}};
+// static union {
+//   tstr str;
+//   char pad[sizeof(tstr) + 4];
+// } nullBinary = {.str = {.len = 1}}, nullNchar = {.str = {.len = 4}};
 
-static void *nullValues[] = {
+static const void *nullValues[] = {
     &nullBool,     &nullTinyInt,   &nullSmallInt, &nullInt,    &nullBigInt,
     &nullFloat,    &nullDouble,    &nullBinary,   &nullBigInt, &nullNchar,
     &nullTinyIntu, &nullSmallIntu, &nullIntu,     &nullBigIntu,
 };
 
-void *getNullValue(int32_t type) {
+const void *getNullValue(int32_t type) {
   assert(type >= TSDB_DATA_TYPE_BOOL && type <= TSDB_DATA_TYPE_UBIGINT);
   return nullValues[type - 1];
 }

src/connector/jdbc/pom.xml

@@ -37,13 +37,6 @@
         <maven.test.jvmargs></maven.test.jvmargs>
     </properties>
     <dependencies>
-        <dependency>
-            <groupId>junit</groupId>
-            <artifactId>junit</artifactId>
-            <version>4.13.1</version>
-            <scope>test</scope>
-        </dependency>
-        <!-- for restful -->
         <dependency>
             <groupId>org.apache.httpcomponents</groupId>
             <artifactId>httpclient</artifactId>
@@ -52,12 +45,18 @@
         <dependency>
             <groupId>com.alibaba</groupId>
             <artifactId>fastjson</artifactId>
-            <version>1.2.58</version>
+            <version>1.2.76</version>
         </dependency>
         <dependency>
             <groupId>com.google.guava</groupId>
             <artifactId>guava</artifactId>
-            <version>30.0-jre</version>
+            <version>30.1.1-jre</version>
+        </dependency>
+        <dependency>
+            <groupId>junit</groupId>
+            <artifactId>junit</artifactId>
+            <version>4.13.1</version>
+            <scope>test</scope>
         </dependency>
     </dependencies>
 

src/connector/jdbc/src/main/java/com/taosdata/jdbc/AbstractConnection.java

@@ -171,11 +171,7 @@ public abstract class AbstractConnection extends WrapperImpl implements Connecti
         // do nothing
     }
 
-    @Override
-    public Statement createStatement(int resultSetType, int resultSetConcurrency) throws SQLException {
-        if (isClosed())
-            throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_CONNECTION_CLOSED);
-
+    private void checkResultSetTypeAndResultSetConcurrency(int resultSetType, int resultSetConcurrency) throws SQLException {
         switch (resultSetType) {
             case ResultSet.TYPE_FORWARD_ONLY:
                 break;
@@ -194,7 +190,14 @@ public abstract class AbstractConnection extends WrapperImpl implements Connecti
             default:
                 throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_INVALID_VARIABLE);
         }
+    }
 
+    @Override
+    public Statement createStatement(int resultSetType, int resultSetConcurrency) throws SQLException {
+        if (isClosed())
+            throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_CONNECTION_CLOSED);
+
+        checkResultSetTypeAndResultSetConcurrency(resultSetType, resultSetConcurrency);
         return createStatement();
     }
 
@@ -203,24 +206,7 @@ public abstract class AbstractConnection extends WrapperImpl implements Connecti
         if (isClosed())
             throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_CONNECTION_CLOSED);
 
-        switch (resultSetType) {
-            case ResultSet.TYPE_FORWARD_ONLY:
-                break;
-            case ResultSet.TYPE_SCROLL_INSENSITIVE:
-            case ResultSet.TYPE_SCROLL_SENSITIVE:
-                throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_UNSUPPORTED_METHOD);
-            default:
-                throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_INVALID_VARIABLE);
-        }
-
-        switch (resultSetConcurrency) {
-            case ResultSet.CONCUR_READ_ONLY:
-                break;
-            case ResultSet.CONCUR_UPDATABLE:
-                throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_UNSUPPORTED_METHOD);
-            default:
-                throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_INVALID_VARIABLE);
-        }
+        checkResultSetTypeAndResultSetConcurrency(resultSetType, resultSetConcurrency);
         return prepareStatement(sql);
     }
 

src/connector/jdbc/src/main/java/com/taosdata/jdbc/EmptyResultSet.java

@@ -326,7 +326,7 @@ public class EmptyResultSet implements ResultSet {
 
     @Override
     public int getFetchDirection() throws SQLException {
-        return 0;
+        return ResultSet.FETCH_FORWARD;
     }
 
     @Override
@@ -341,12 +341,12 @@ public class EmptyResultSet implements ResultSet {
 
     @Override
     public int getType() throws SQLException {
-        return 0;
+        return ResultSet.TYPE_FORWARD_ONLY;
     }
 
     @Override
     public int getConcurrency() throws SQLException {
-        return 0;
+        return ResultSet.CONCUR_READ_ONLY;
     }
 
     @Override
@@ -746,7 +746,7 @@ public class EmptyResultSet implements ResultSet {
 
     @Override
     public int getHoldability() throws SQLException {
-        return 0;
+        return ResultSet.CLOSE_CURSORS_AT_COMMIT;
     }
 
     @Override

src/connector/jdbc/src/main/java/com/taosdata/jdbc/TSDBErrorNumbers.java

@@ -40,7 +40,7 @@ public class TSDBErrorNumbers {
     public static final int ERROR_JNI_FETCH_END = 0x2358;       // fetch to the end of resultSet
     public static final int ERROR_JNI_OUT_OF_MEMORY = 0x2359;   // JNI alloc memory failed
 
-    private static final Set<Integer> errorNumbers = new HashSet();
+    private static final Set<Integer> errorNumbers = new HashSet<>();
 
     static {
         errorNumbers.add(ERROR_CONNECTION_CLOSED);

src/connector/jdbc/src/main/java/com/taosdata/jdbc/rs/RestfulResultSet.java

@@ -61,7 +61,7 @@ public class RestfulResultSet extends AbstractResultSet implements ResultSet {
             return;
         // parse row data
         for (int rowIndex = 0; rowIndex < data.size(); rowIndex++) {
-            List<Object> row = new ArrayList();
+            List<Object> row = new ArrayList<>();
             JSONArray jsonRow = data.getJSONArray(rowIndex);
             for (int colIndex = 0; colIndex < this.metaData.getColumnCount(); colIndex++) {
                 row.add(parseColumnData(jsonRow, colIndex, columns.get(colIndex).taos_type));

src/connector/jdbc/src/main/java/com/taosdata/jdbc/utils/HttpClientPoolUtil.java

@@ -9,6 +9,7 @@ import org.apache.http.client.protocol.HttpClientContext;
 import org.apache.http.conn.ConnectionKeepAliveStrategy;
 import org.apache.http.entity.StringEntity;
 import org.apache.http.impl.client.CloseableHttpClient;
+import org.apache.http.impl.client.DefaultHttpRequestRetryHandler;
 import org.apache.http.impl.client.HttpClients;
 import org.apache.http.impl.conn.PoolingHttpClientConnectionManager;
 import org.apache.http.message.BasicHeaderElementIterator;
@@ -34,7 +35,11 @@ public class HttpClientPoolUtil {
             PoolingHttpClientConnectionManager connectionManager = new PoolingHttpClientConnectionManager();
             connectionManager.setDefaultMaxPerRoute(DEFAULT_MAX_PER_ROUTE);
             connectionManager.setMaxTotal(DEFAULT_MAX_TOTAL);
-            httpClient = HttpClients.custom().setKeepAliveStrategy(DEFAULT_KEEP_ALIVE_STRATEGY).setConnectionManager(connectionManager).build();
+            httpClient = HttpClients.custom()
+                    .setKeepAliveStrategy(DEFAULT_KEEP_ALIVE_STRATEGY)
+                    .setConnectionManager(connectionManager)
+                    .setRetryHandler(new DefaultHttpRequestRetryHandler(3, true))
+                    .build();
         }
     }
 

src/connector/jdbc/src/main/java/com/taosdata/jdbc/utils/OSUtils.java

@@ -4,14 +4,14 @@ public class OSUtils {
     private static final String OS = System.getProperty("os.name").toLowerCase();
 
     public static boolean isWindows() {
-        return OS.indexOf("win") >= 0;
+        return OS.contains("win");
     }
 
     public static boolean isMac() {
-        return OS.indexOf("mac") >= 0;
+        return OS.contains("mac");
     }
 
     public static boolean isLinux() {
-        return OS.indexOf("nux") >= 0;
+        return OS.contains("nux");
     }
 }

src/connector/jdbc/src/main/java/com/taosdata/jdbc/utils/SqlSyntaxValidator.java

@@ -16,7 +16,7 @@ package com.taosdata.jdbc.utils;
 
 public class SqlSyntaxValidator {
 
-    private static final String[] SQL = {"select", "insert", "import", "create", "use", "alter", "drop", "set", "show", "describe"};
+    private static final String[] SQL = {"select", "insert", "import", "create", "use", "alter", "drop", "set", "show", "describe", "reset"};
     private static final String[] updateSQL = {"insert", "import", "create", "use", "alter", "drop", "set"};
     private static final String[] querySQL = {"select", "show", "describe"};
 
@@ -61,29 +61,11 @@ public class SqlSyntaxValidator {
 
     public static boolean isUseSql(String sql) {
         return sql.trim().toLowerCase().startsWith("use");
-//                || sql.trim().toLowerCase().matches("create\\s*database.*") || sql.toLowerCase().toLowerCase().matches("drop\\s*database.*");
-    }
-
-    public static boolean isShowSql(String sql) {
-        return sql.trim().toLowerCase().startsWith("show");
-    }
-
-    public static boolean isDescribeSql(String sql) {
-        return sql.trim().toLowerCase().startsWith("describe");
-    }
-
-
-    public static boolean isInsertSql(String sql) {
-        return sql.trim().toLowerCase().startsWith("insert") || sql.trim().toLowerCase().startsWith("import");
     }
 
     public static boolean isSelectSql(String sql) {
         return sql.trim().toLowerCase().startsWith("select");
     }
 
-    public static boolean isShowDatabaseSql(String sql) {
-        return sql.trim().toLowerCase().matches("show\\s*databases");
-    }
-
 
 }

src/connector/jdbc/src/main/java/com/taosdata/jdbc/utils/TaosInfo.java

@@ -7,9 +7,9 @@ import java.util.concurrent.atomic.AtomicLong;
 public class TaosInfo implements TaosInfoMBean {
 
     private static volatile TaosInfo instance;
-    private AtomicLong connect_open = new AtomicLong();
-    private AtomicLong connect_close = new AtomicLong();
-    private AtomicLong statement_count = new AtomicLong();
+    private final AtomicLong connect_open = new AtomicLong();
+    private final AtomicLong connect_close = new AtomicLong();
+    private final AtomicLong statement_count = new AtomicLong();
 
     static {
         try {

src/connector/jdbc/src/main/java/com/taosdata/jdbc/utils/Utils.java

@@ -22,8 +22,7 @@ import java.util.stream.IntStream;
 
 public class Utils {
 
-    private static Pattern ptn = Pattern.compile(".*?'");
-
+    private static final Pattern ptn = Pattern.compile(".*?'");
     private static final DateTimeFormatter milliSecFormatter = new DateTimeFormatterBuilder().appendPattern("yyyy-MM-dd HH:mm:ss.SSS").toFormatter();
     private static final DateTimeFormatter microSecFormatter = new DateTimeFormatterBuilder().appendPattern("yyyy-MM-dd HH:mm:ss.SSSSSS").toFormatter();
     private static final DateTimeFormatter nanoSecFormatter = new DateTimeFormatterBuilder().appendPattern("yyyy-MM-dd HH:mm:ss.SSSSSSSSS").toFormatter();
@@ -74,7 +73,7 @@ public class Utils {
 
     public static String escapeSingleQuota(String origin) {
         Matcher m = ptn.matcher(origin);
-        StringBuffer sb = new StringBuffer();
+        StringBuilder sb = new StringBuilder();
         int end = 0;
         while (m.find()) {
             end = m.end();
@@ -87,7 +86,7 @@ public class Utils {
                     sb.append(seg);
                 }
             } else { // len > 1
-                sb.append(seg.substring(0, seg.length() - 2));
+                sb.append(seg, 0, seg.length() - 2);
                 char lastcSec = seg.charAt(seg.length() - 2);
                 if (lastcSec == '\\') {
                     sb.append("\\'");
@@ -195,7 +194,7 @@ public class Utils {
 
     public static String formatTimestamp(Timestamp timestamp) {
         int nanos = timestamp.getNanos();
-        if (nanos % 1000000l != 0)
+        if (nanos % 1000000L != 0)
             return timestamp.toLocalDateTime().format(microSecFormatter);
         return timestamp.toLocalDateTime().format(milliSecFormatter);
     }

src/connector/jdbc/src/test/java/com/taosdata/jdbc/TSDBConnectionTest.java

@@ -5,7 +5,6 @@ import org.junit.Assert;
 import org.junit.BeforeClass;
 import org.junit.Test;
 
-import javax.management.OperationsException;
 import java.sql.*;
 import java.util.Properties;
 

src/connector/jdbc/src/test/java/com/taosdata/jdbc/TSDBJNIConnectorTest.java

 package com.taosdata.jdbc;
 
 import org.junit.Test;
-import static org.junit.Assert.*;
 
+import java.lang.management.ManagementFactory;
+import java.lang.management.RuntimeMXBean;
 import java.sql.SQLException;
 import java.sql.SQLWarning;
 import java.util.ArrayList;
 import java.util.List;
 
-import java.lang.management.ManagementFactory;
-import java.lang.management.RuntimeMXBean;
-import java.lang.management.ThreadMXBean;
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertTrue;
 
 public class TSDBJNIConnectorTest {
 

src/connector/jdbc/src/test/java/com/taosdata/jdbc/TSDBParameterMetaDataTest.java

 package com.taosdata.jdbc;
 
-import com.taosdata.jdbc.rs.RestfulParameterMetaData;
 import org.junit.AfterClass;
 import org.junit.Assert;
 import org.junit.BeforeClass;

src/connector/jdbc/src/test/java/com/taosdata/jdbc/TSDBPreparedStatementTest.java

@@ -2,7 +2,6 @@ package com.taosdata.jdbc;
 
 import org.junit.*;
 
-import java.io.IOException;
 import java.math.BigDecimal;
 import java.sql.*;
 import java.util.ArrayList;
@@ -26,7 +25,7 @@ public class TSDBPreparedStatementTest {
         long ts = System.currentTimeMillis();
         pstmt_insert.setTimestamp(1, new Timestamp(ts));
         pstmt_insert.setInt(2, 2);
-        pstmt_insert.setLong(3, 3l);
+        pstmt_insert.setLong(3, 3L);
         pstmt_insert.setFloat(4, 3.14f);
         pstmt_insert.setDouble(5, 3.1415);
         pstmt_insert.setShort(6, (short) 6);
@@ -53,8 +52,8 @@ public class TSDBPreparedStatementTest {
             Assert.assertEquals(ts, rs.getTimestamp(1).getTime());
             Assert.assertEquals(2, rs.getInt(2));
             Assert.assertEquals(2, rs.getInt("f1"));
-            Assert.assertEquals(3l, rs.getLong(3));
-            Assert.assertEquals(3l, rs.getLong("f2"));
+            Assert.assertEquals(3L, rs.getLong(3));
+            Assert.assertEquals(3L, rs.getLong("f2"));
             Assert.assertEquals(3.14f, rs.getFloat(4), 0.0);
             Assert.assertEquals(3.14f, rs.getFloat("f3"), 0.0);
             Assert.assertEquals(3.1415, rs.getDouble(5), 0.0);
@@ -312,14 +311,14 @@ public class TSDBPreparedStatementTest {
             Random r = new Random();
             s.setTableName("weather_test");
 
-            ArrayList<Long> ts = new ArrayList<Long>();
+            ArrayList<Long> ts = new ArrayList<>();
             for (int i = 0; i < numOfRows; i++) {
                 ts.add(System.currentTimeMillis() + i);
             }
             s.setTimestamp(0, ts);
 
             int random = 10 + r.nextInt(5);
-            ArrayList<String> s2 = new ArrayList<String>();
+            ArrayList<String> s2 = new ArrayList<>();
             for (int i = 0; i < numOfRows; i++) {
                 if (i % random == 0) {
                     s2.add(null);
@@ -330,7 +329,7 @@ public class TSDBPreparedStatementTest {
             s.setNString(1, s2, 4);
 
             random = 10 + r.nextInt(5);
-            ArrayList<Float> s3 = new ArrayList<Float>();
+            ArrayList<Float> s3 = new ArrayList<>();
             for (int i = 0; i < numOfRows; i++) {
                 if (i % random == 0) {
                     s3.add(null);
@@ -341,7 +340,7 @@ public class TSDBPreparedStatementTest {
             s.setFloat(2, s3);
 
             random = 10 + r.nextInt(5);
-            ArrayList<Double> s4 = new ArrayList<Double>();
+            ArrayList<Double> s4 = new ArrayList<>();
             for (int i = 0; i < numOfRows; i++) {
                 if (i % random == 0) {
                     s4.add(null);
@@ -352,7 +351,7 @@ public class TSDBPreparedStatementTest {
             s.setDouble(3, s4);
 
             random = 10 + r.nextInt(5);
-            ArrayList<Long> ts2 = new ArrayList<Long>();
+            ArrayList<Long> ts2 = new ArrayList<>();
             for (int i = 0; i < numOfRows; i++) {
                 if (i % random == 0) {
                     ts2.add(null);
@@ -379,13 +378,13 @@ public class TSDBPreparedStatementTest {
                 if (i % random == 0) {
                     sb.add(null);
                 } else {
-                    sb.add(i % 2 == 0 ? true : false);
+                    sb.add(i % 2 == 0);
                 }
             }
             s.setBoolean(6, sb);
 
             random = 10 + r.nextInt(5);
-            ArrayList<String> s5 = new ArrayList<String>();
+            ArrayList<String> s5 = new ArrayList<>();
             for (int i = 0; i < numOfRows; i++) {
                 if (i % random == 0) {
                     s5.add(null);
@@ -424,14 +423,14 @@ public class TSDBPreparedStatementTest {
             Random r = new Random();
             s.setTableName("weather_test");
 
-            ArrayList<Long> ts = new ArrayList<Long>();
+            ArrayList<Long> ts = new ArrayList<>();
             for (int i = 0; i < numOfRows; i++) {
                 ts.add(System.currentTimeMillis() + i);
             }
             s.setTimestamp(0, ts);
 
             int random = 10 + r.nextInt(5);
-            ArrayList<String> s2 = new ArrayList<String>();
+            ArrayList<String> s2 = new ArrayList<>();
             for (int i = 0; i < numOfRows; i++) {
                 if (i % random == 0) {
                     s2.add(null);
@@ -442,7 +441,7 @@ public class TSDBPreparedStatementTest {
             s.setNString(1, s2, 4);
 
             random = 10 + r.nextInt(5);
-            ArrayList<String> s3 = new ArrayList<String>();
+            ArrayList<String> s3 = new ArrayList<>();
             for (int i = 0; i < numOfRows; i++) {
                 if (i % random == 0) {
                     s3.add(null);
@@ -471,7 +470,7 @@ public class TSDBPreparedStatementTest {
     public void bindDataWithSingleTagTest() throws SQLException {
         Statement stmt = conn.createStatement();
 
-        String types[] = new String[]{"tinyint", "smallint", "int", "bigint", "bool", "float", "double", "binary(10)", "nchar(10)"};
+        String[] types = new String[]{"tinyint", "smallint", "int", "bigint", "bool", "float", "double", "binary(10)", "nchar(10)"};
 
         for (String type : types) {
             stmt.execute("drop table if exists weather_test");
@@ -510,21 +509,21 @@ public class TSDBPreparedStatementTest {
             }
 
 
-            ArrayList<Long> ts = new ArrayList<Long>();
+            ArrayList<Long> ts = new ArrayList<>();
             for (int i = 0; i < numOfRows; i++) {
                 ts.add(System.currentTimeMillis() + i);
             }
             s.setTimestamp(0, ts);
 
             int random = 10 + r.nextInt(5);
-            ArrayList<String> s2 = new ArrayList<String>();
+            ArrayList<String> s2 = new ArrayList<>();
             for (int i = 0; i < numOfRows; i++) {
                 s2.add("分支" + i % 4);
             }
             s.setNString(1, s2, 10);
 
             random = 10 + r.nextInt(5);
-            ArrayList<String> s3 = new ArrayList<String>();
+            ArrayList<String> s3 = new ArrayList<>();
             for (int i = 0; i < numOfRows; i++) {
                 s3.add("test" + i % 4);
             }
@@ -561,13 +560,13 @@ public class TSDBPreparedStatementTest {
         s.setTagString(1, "test");
 
 
-        ArrayList<Long> ts = new ArrayList<Long>();
+        ArrayList<Long> ts = new ArrayList<>();
         for (int i = 0; i < numOfRows; i++) {
             ts.add(System.currentTimeMillis() + i);
         }
         s.setTimestamp(0, ts);
 
-        ArrayList<String> s2 = new ArrayList<String>();
+        ArrayList<String> s2 = new ArrayList<>();
         for (int i = 0; i < numOfRows; i++) {
             s2.add("test" + i % 4);
         }
@@ -788,7 +787,7 @@ public class TSDBPreparedStatementTest {
     public void setBigDecimal() throws SQLException {
         // given
         long ts = System.currentTimeMillis();
-        BigDecimal bigDecimal = new BigDecimal(3.14444);
+        BigDecimal bigDecimal = new BigDecimal("3.14444");
 
         // when
         pstmt_insert.setTimestamp(1, new Timestamp(ts));
@@ -999,7 +998,7 @@ public class TSDBPreparedStatementTest {
         long ts = System.currentTimeMillis();
         pstmt_insert.setTimestamp(1, new Timestamp(ts));
         pstmt_insert.setInt(2, 2);
-        pstmt_insert.setLong(3, 3l);
+        pstmt_insert.setLong(3, 3L);
         pstmt_insert.setFloat(4, 3.14f);
         pstmt_insert.setDouble(5, 3.1415);
         pstmt_insert.setShort(6, (short) 6);

src/connector/jdbc/src/test/java/com/taosdata/jdbc/TSDBResultSetTest.java

@@ -95,13 +95,13 @@ public class TSDBResultSetTest {
     @Test
     public void getBigDecimal() throws SQLException {
         BigDecimal f1 = rs.getBigDecimal("f1");
-        Assert.assertEquals(1609430400000l, f1.longValue());
+        Assert.assertEquals(1609430400000L, f1.longValue());
 
         BigDecimal f2 = rs.getBigDecimal("f2");
         Assert.assertEquals(1, f2.intValue());
 
         BigDecimal f3 = rs.getBigDecimal("f3");
-        Assert.assertEquals(100l, f3.longValue());
+        Assert.assertEquals(100L, f3.longValue());
 
         BigDecimal f4 = rs.getBigDecimal("f4");
         Assert.assertEquals(3.1415f, f4.floatValue(), 0.00000f);
@@ -125,13 +125,13 @@ public class TSDBResultSetTest {
         Assert.assertEquals(1, Ints.fromByteArray(f2));
 
         byte[] f3 = rs.getBytes("f3");
-        Assert.assertEquals(100l, Longs.fromByteArray(f3));
+        Assert.assertEquals(100L, Longs.fromByteArray(f3));
 
         byte[] f4 = rs.getBytes("f4");
-        Assert.assertEquals(3.1415f, Float.valueOf(new String(f4)), 0.000000f);
+        Assert.assertEquals(3.1415f, Float.parseFloat(new String(f4)), 0.000000f);
 
         byte[] f5 = rs.getBytes("f5");
-        Assert.assertEquals(3.1415926, Double.valueOf(new String(f5)), 0.000000f);
+        Assert.assertEquals(3.1415926, Double.parseDouble(new String(f5)), 0.000000f);
 
         byte[] f6 = rs.getBytes("f6");
         Assert.assertTrue(Arrays.equals("abc".getBytes(), f6));
@@ -223,7 +223,7 @@ public class TSDBResultSetTest {
 
         Object f3 = rs.getObject("f3");
         Assert.assertEquals(Long.class, f3.getClass());
-        Assert.assertEquals(100l, f3);
+        Assert.assertEquals(100L, f3);
 
         Object f4 = rs.getObject("f4");
         Assert.assertEquals(Float.class, f4.getClass());
@@ -421,7 +421,7 @@ public class TSDBResultSetTest {
 
     @Test(expected = SQLFeatureNotSupportedException.class)
     public void updateLong() throws SQLException {
-        rs.updateLong(1, 1l);
+        rs.updateLong(1, 1L);
     }
 
     @Test(expected = SQLFeatureNotSupportedException.class)

src/connector/jdbc/src/test/java/com/taosdata/jdbc/cases/BadLocaleSettingTest.java

@@ -3,12 +3,13 @@ package com.taosdata.jdbc.cases;
 
 import com.taosdata.jdbc.TSDBDriver;
 import org.junit.AfterClass;
-import org.junit.Assert;
 import org.junit.BeforeClass;
 import org.junit.Test;
-import java.io.IOException;
 
-import java.sql.*;
+import java.sql.Connection;
+import java.sql.DriverManager;
+import java.sql.SQLException;
+import java.sql.Statement;
 import java.util.Properties;
 
 public class BadLocaleSettingTest {

src/connector/jdbc/src/test/java/com/taosdata/jdbc/cases/ConnectMultiTaosdByRestfulWithDifferentTokenTest.java

 package com.taosdata.jdbc.cases;
 
 import com.taosdata.jdbc.TSDBDriver;
+import org.junit.Assert;
 import org.junit.Before;
 import org.junit.Test;
 
@@ -9,13 +10,13 @@ import java.util.Properties;
 
 public class ConnectMultiTaosdByRestfulWithDifferentTokenTest {
 
-    private static String host1 = "192.168.17.156";
-    private static String user1 = "root";
-    private static String password1 = "tqueue";
+    private static final String host1 = "192.168.17.156";
+    private static final String user1 = "root";
+    private static final String password1 = "tqueue";
     private Connection conn1;
-    private static String host2 = "192.168.17.82";
-    private static String user2 = "root";
-    private static String password2 = "taosdata";
+    private static final String host2 = "192.168.17.82";
+    private static final String user2 = "root";
+    private static final String password2 = "taosdata";
     private Connection conn2;
 
     @Test
@@ -30,6 +31,7 @@ public class ConnectMultiTaosdByRestfulWithDifferentTokenTest {
         try (Statement stmt = connection.createStatement()) {
             ResultSet rs = stmt.executeQuery("select server_status()");
             ResultSetMetaData meta = rs.getMetaData();
+            Assert.assertNotNull(meta);
             while (rs.next()) {
             }
         } catch (SQLException e) {

src/connector/jdbc/src/test/java/com/taosdata/jdbc/cases/DriverAutoloadTest.java

@@ -13,7 +13,7 @@ import java.util.Properties;
 public class DriverAutoloadTest {
 
     private Properties properties;
-    private String host = "127.0.0.1";
+    private final String host = "127.0.0.1";
 
     @Test
     public void testRestful() throws SQLException {

src/connector/jdbc/src/test/java/com/taosdata/jdbc/cases/InsertDbwithoutUseDbTest.java

@@ -13,9 +13,9 @@ import java.util.Random;
 @FixMethodOrder(MethodSorters.NAME_ASCENDING)
 public class InsertDbwithoutUseDbTest {
 
-    private static String host = "127.0.0.1";
+    private static final String host = "127.0.0.1";
     private static Properties properties;
-    private static Random random = new Random(System.currentTimeMillis());
+    private static final Random random = new Random(System.currentTimeMillis());
 
     @Test
     public void case001() throws ClassNotFoundException, SQLException {

src/connector/jdbc/src/test/java/com/taosdata/jdbc/cases/InsertSpecialCharacterJniTest.java

@@ -8,14 +8,14 @@ public class InsertSpecialCharacterJniTest {
 
     private static final String host = "127.0.0.1";
     private static Connection conn;
-    private static String dbName = "spec_char_test";
-    private static String tbname1 = "test";
-    private static String tbname2 = "weather";
-    private static String special_character_str_1 = "$asd$$fsfsf$";
-    private static String special_character_str_2 = "\\\\asdfsfsf\\\\";
-    private static String special_character_str_3 = "\\\\asdfsfsf\\";
-    private static String special_character_str_4 = "?asd??fsf?sf?";
-    private static String special_character_str_5 = "?#sd@$f(('<(s[P)>\"){]}f?s[]{}%vaew|\"fsfs^a&d*jhg)(j))(f@~!?$";
+    private static final String dbName = "spec_char_test";
+    private static final String tbname1 = "test";
+    private static final String tbname2 = "weather";
+    private static final String special_character_str_1 = "$asd$$fsfsf$";
+    private static final String special_character_str_2 = "\\\\asdfsfsf\\\\";
+    private static final String special_character_str_3 = "\\\\asdfsfsf\\";
+    private static final String special_character_str_4 = "?asd??fsf?sf?";
+    private static final String special_character_str_5 = "?#sd@$f(('<(s[P)>\"){]}f?s[]{}%vaew|\"fsfs^a&d*jhg)(j))(f@~!?$";
 
     @Test
     public void testCase01() throws SQLException {

src/connector/jdbc/src/test/java/com/taosdata/jdbc/cases/InsertSpecialCharacterRestfulTest.java

@@ -8,14 +8,14 @@ public class InsertSpecialCharacterRestfulTest {
 
     private static final String host = "127.0.0.1";
     private static Connection conn;
-    private static String dbName = "spec_char_test";
-    private static String tbname1 = "test";
-    private static String tbname2 = "weather";
-    private static String special_character_str_1 = "$asd$$fsfsf$";
-    private static String special_character_str_2 = "\\\\asdfsfsf\\\\";
-    private static String special_character_str_3 = "\\\\asdfsfsf\\";
-    private static String special_character_str_4 = "?asd??fsf?sf?";
-    private static String special_character_str_5 = "?#sd@$f(('<(s[P)>\"){]}f?s[]{}%vaew|\"fsfs^a&d*jhg)(j))(f@~!?$";
+    private static final String dbName = "spec_char_test";
+    private static final String tbname1 = "test";
+    private static final String tbname2 = "weather";
+    private static final String special_character_str_1 = "$asd$$fsfsf$";
+    private static final String special_character_str_2 = "\\\\asdfsfsf\\\\";
+    private static final String special_character_str_3 = "\\\\asdfsfsf\\";
+    private static final String special_character_str_4 = "?asd??fsf?sf?";
+    private static final String special_character_str_5 = "?#sd@$f(('<(s[P)>\"){]}f?s[]{}%vaew|\"fsfs^a&d*jhg)(j))(f@~!?$";
 
     @Test
     public void testCase01() throws SQLException {

src/connector/jdbc/src/test/java/com/taosdata/jdbc/cases/InvalidResultSetPointerTest.java

@@ -8,13 +8,13 @@ import java.util.Properties;
 
 public class InvalidResultSetPointerTest {
 
-    private static String host = "127.0.0.1";
+    private static final String host = "127.0.0.1";
     private static final String dbName = "test";
     private static final String stbName = "stb";
     private static final String tbName = "tb";
     private static Connection connection;
-    private static int numOfSTb = 30000;
-    private static int numOfTb = 3;
+    private static final int numOfSTb = 30000;
+    private static final int numOfTb = 3;
     private static int numOfThreads = 100;
 
     @Test
@@ -74,7 +74,7 @@ public class InvalidResultSetPointerTest {
             b = numOfSTb % numOfThreads;
         }
 
-        multiThreadingClass instance[] = new multiThreadingClass[numOfThreads];
+        multiThreadingClass[] instance = new multiThreadingClass[numOfThreads];
 
         int last = 0;
         for (int i = 0; i < numOfThreads; i++) {

src/connector/jdbc/src/test/java/com/taosdata/jdbc/cases/MultiThreadsWithSameStatementTest.java

@@ -9,8 +9,7 @@ import java.util.concurrent.TimeUnit;
 
 public class MultiThreadsWithSameStatementTest {
 
-
-    private class Service {
+    private static class Service {
         public Connection conn;
         public Statement stmt;
 

src/connector/jdbc/src/test/java/com/taosdata/jdbc/cases/ResetQueryCacheTest.java

+package com.taosdata.jdbc.cases;
+
+import com.taosdata.jdbc.TSDBDriver;
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Test;
+
+import java.sql.*;
+import java.util.Properties;
+
+import static org.junit.Assert.assertEquals;
+
+public class ResetQueryCacheTest {
+
+    static Connection connection;
+    static Statement statement;
+    static String host = "127.0.0.1";
+
+    @Before
+    public void init() {
+        try {
+            Properties properties = new Properties();
+            properties.setProperty(TSDBDriver.PROPERTY_KEY_CHARSET, "UTF-8");
+            properties.setProperty(TSDBDriver.PROPERTY_KEY_LOCALE, "en_US.UTF-8");
+            properties.setProperty(TSDBDriver.PROPERTY_KEY_TIME_ZONE, "UTC-8");
+            connection = DriverManager.getConnection("jdbc:TAOS://" + host + ":0/", properties);
+            statement = connection.createStatement();
+        } catch (SQLException e) {
+            return;
+        }
+    }
+
+    @Test
+    public void testResetQueryCache() throws SQLException {
+        String resetSql = "reset query cache";
+        statement.execute(resetSql);
+    }
+
+    @After
+    public void close() {
+        try {
+            if (statement != null)
+                statement.close();
+            if (connection != null)
+                connection.close();
+        } catch (SQLException e) {
+            e.printStackTrace();
+        }
+    }
+
+}
\ No newline at end of file

src/connector/jdbc/src/test/java/com/taosdata/jdbc/cases/StableTest.java

@@ -16,9 +16,9 @@ import static org.junit.Assert.assertEquals;
 public class StableTest {
 
     private static Connection connection;
-    private static String dbName = "test";
-    private static String stbName = "st";
-    private static String host = "127.0.0.1";
+    private static final String dbName = "test";
+    private static final String stbName = "st";
+    private static final String host = "127.0.0.1";
 
     @BeforeClass
     public static void createDatabase() {

src/connector/jdbc/src/test/java/com/taosdata/jdbc/cases/TaosInfoMonitorTest.java

@@ -25,7 +25,7 @@ public class TaosInfoMonitorTest {
             return null;
         }).collect(Collectors.toList());
 
-        connectionList.stream().forEach(conn -> {
+        connectionList.forEach(conn -> {
             try (Statement stmt = conn.createStatement()) {
                 ResultSet rs = stmt.executeQuery("show databases");
                 while (rs.next()) {
@@ -37,7 +37,7 @@ public class TaosInfoMonitorTest {
             }
         });
 
-        connectionList.stream().forEach(conn -> {
+        connectionList.forEach(conn -> {
             try {
                 conn.close();
                 TimeUnit.MILLISECONDS.sleep(100);

src/connector/jdbc/src/test/java/com/taosdata/jdbc/cases/TimestampPrecisionInNanoInJniTest.java

@@ -22,7 +22,7 @@ public class TimestampPrecisionInNanoInJniTest {
     private static final long timestamp3 = (timestamp1 + 10) * 1000_000 + 123456;
     private static final Format format = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss.SSS");
     private static final String date1 = format.format(new Date(timestamp1));
-    private static final String date4 = format.format(new Date(timestamp1 + 10l));
+    private static final String date4 = format.format(new Date(timestamp1 + 10L));
     private static final String date2 = date1 + "123455";
     private static final String date3 = date4 + "123456";
     

src/connector/jdbc/src/test/java/com/taosdata/jdbc/cases/UnsignedNumberJniTest.java

@@ -44,7 +44,7 @@ public class UnsignedNumberJniTest {
                 Assert.assertEquals(127, rs.getByte(2));
                 Assert.assertEquals(32767, rs.getShort(3));
                 Assert.assertEquals(2147483647, rs.getInt(4));
-                Assert.assertEquals(9223372036854775807l, rs.getLong(5));
+                Assert.assertEquals(9223372036854775807L, rs.getLong(5));
             }
         } catch (SQLException e) {
             e.printStackTrace();

src/connector/jdbc/src/test/java/com/taosdata/jdbc/cases/UnsignedNumberRestfulTest.java

@@ -45,7 +45,7 @@ public class UnsignedNumberRestfulTest {
                 Assert.assertEquals(127, rs.getByte(2));
                 Assert.assertEquals(32767, rs.getShort(3));
                 Assert.assertEquals(2147483647, rs.getInt(4));
-                Assert.assertEquals(9223372036854775807l, rs.getLong(5));
+                Assert.assertEquals(9223372036854775807L, rs.getLong(5));
             }
         } catch (SQLException e) {
             e.printStackTrace();

src/connector/jdbc/src/test/java/com/taosdata/jdbc/rs/RestfulResultSetTest.java

@@ -95,13 +95,13 @@ public class RestfulResultSetTest {
     public void getBigDecimal() throws SQLException {
         BigDecimal f1 = rs.getBigDecimal("f1");
         long actual = (f1 == null) ? 0 : f1.longValue();
-        Assert.assertEquals(1609430400000l, actual);
+        Assert.assertEquals(1609430400000L, actual);
 
         BigDecimal f2 = rs.getBigDecimal("f2");
         Assert.assertEquals(1, f2.intValue());
 
         BigDecimal f3 = rs.getBigDecimal("f3");
-        Assert.assertEquals(100l, f3.longValue());
+        Assert.assertEquals(100L, f3.longValue());
 
         BigDecimal f4 = rs.getBigDecimal("f4");
         Assert.assertEquals(3.1415f, f4.floatValue(), 0.00000f);
@@ -125,13 +125,13 @@ public class RestfulResultSetTest {
         Assert.assertEquals(1, Ints.fromByteArray(f2));
 
         byte[] f3 = rs.getBytes("f3");
-        Assert.assertEquals(100l, Longs.fromByteArray(f3));
+        Assert.assertEquals(100L, Longs.fromByteArray(f3));
 
         byte[] f4 = rs.getBytes("f4");
-        Assert.assertEquals(3.1415f, Float.valueOf(new String(f4)), 0.000000f);
+        Assert.assertEquals(3.1415f, Float.parseFloat(new String(f4)), 0.000000f);
 
         byte[] f5 = rs.getBytes("f5");
-        Assert.assertEquals(3.1415926, Double.valueOf(new String(f5)), 0.000000f);
+        Assert.assertEquals(3.1415926, Double.parseDouble(new String(f5)), 0.000000f);
 
         byte[] f6 = rs.getBytes("f6");
         Assert.assertEquals("abc", new String(f6));
@@ -222,7 +222,7 @@ public class RestfulResultSetTest {
 
         Object f3 = rs.getObject("f3");
         Assert.assertEquals(Long.class, f3.getClass());
-        Assert.assertEquals(100l, f3);
+        Assert.assertEquals(100L, f3);
 
         Object f4 = rs.getObject("f4");
         Assert.assertEquals(Float.class, f4.getClass());
@@ -434,7 +434,7 @@ public class RestfulResultSetTest {
 
     @Test(expected = SQLFeatureNotSupportedException.class)
     public void updateLong() throws SQLException {
-        rs.updateLong(1, 1l);
+        rs.updateLong(1, 1L);
     }
 
     @Test(expected = SQLFeatureNotSupportedException.class)

src/connector/jdbc/src/test/java/com/taosdata/jdbc/utils/OSUtilsTest.java

@@ -10,17 +10,17 @@ public class OSUtilsTest {
 
     @Test
     public void inWindows() {
-        Assert.assertEquals(OS.indexOf("win") >= 0, OSUtils.isWindows());
+        Assert.assertEquals(OS.contains("win"), OSUtils.isWindows());
     }
 
     @Test
     public void isMac() {
-        Assert.assertEquals(OS.indexOf("mac") >= 0, OSUtils.isMac());
+        Assert.assertEquals(OS.contains("mac"), OSUtils.isMac());
     }
 
     @Test
     public void isLinux() {
-        Assert.assertEquals(OS.indexOf("nux") >= 0, OSUtils.isLinux());
+        Assert.assertEquals(OS.contains("nux"), OSUtils.isLinux());
     }
 
     @Before

src/connector/jdbc/src/test/java/com/taosdata/jdbc/utils/TimestampUtil.java

@@ -21,47 +21,4 @@ public class TimestampUtil {
         SimpleDateFormat sdf = new SimpleDateFormat(datetimeFormat);
         return sdf.format(new Date(time));
     }
-
-    public static class TimeTuple {
-        public Long start;
-        public Long end;
-        public Long timeGap;
-
-        TimeTuple(long start, long end, long timeGap) {
-            this.start = start;
-            this.end = end;
-            this.timeGap = timeGap;
-        }
-    }
-
-    public static TimeTuple range(long start, long timeGap, long size) {
-        long now = System.currentTimeMillis();
-        if (timeGap < 1)
-            timeGap = 1;
-        if (start == 0)
-            start = now - size * timeGap;
-
-        // 如果size小于1异常
-        if (size < 1)
-            throw new IllegalArgumentException("size less than 1.");
-        // 如果timeGap为1，已经超长，需要前移start
-        if (start + size > now) {
-            start = now - size;
-            return new TimeTuple(start, now, 1);
-        }
-        long end = start + (long) (timeGap * size);
-        if (end > now) {
-            //压缩timeGap
-            end = now;
-            double gap = (end - start) / (size * 1.0f);
-            if (gap < 1.0f) {
-                timeGap = 1;
-                start = end - size;
-            } else {
-                timeGap = (long) gap;
-                end = start + (long) (timeGap * size);
-            }
-        }
-        return new TimeTuple(start, end, timeGap);
-    }
 }

src/connector/jdbc/src/test/java/com/taosdata/jdbc/utils/UtilsTest.java

@@ -3,8 +3,6 @@ package com.taosdata.jdbc.utils;
 import org.junit.Assert;
 import org.junit.Test;
 
-import java.util.regex.Matcher;
-import java.util.regex.Pattern;
 import java.util.stream.Stream;
 
 public class UtilsTest {
@@ -19,14 +17,14 @@ public class UtilsTest {
         Assert.assertEquals("\\'\\'\\'\\'\\'a\\'", news);
 
         // given
-        s = "\'''''a\\'";
+        s = "'''''a\\'";
         // when
         news = Utils.escapeSingleQuota(s);
         // then
         Assert.assertEquals("\\'\\'\\'\\'\\'a\\'", news);
 
         // given
-        s = "\'\'\'\''a\\'";
+        s = "'''''a\\'";
         // when
         news = Utils.escapeSingleQuota(s);
         // then

src/cq/src/cqMain.c

@@ -490,9 +490,9 @@ static void cqProcessStreamRes(void *param, TAOS_RES *tres, TAOS_ROW row) {
 
   for (int32_t i = 0; i < pSchema->numOfCols; i++) {
     STColumn *c = pSchema->columns + i;
-    void* val = row[i];
+    void *val = row[i];
     if (val == NULL) {
-      val = getNullValue(c->type);
+      val = (void *)getNullValue(c->type);
     } else if (c->type == TSDB_DATA_TYPE_BINARY) {
       val = ((char*)val) - sizeof(VarDataLenT);
     } else if (c->type == TSDB_DATA_TYPE_NCHAR) {

src/dnode/src/dnodeMPeer.c

@@ -151,6 +151,8 @@ static void *dnodeProcessMPeerQueue(void *param) {
   int32_t    type;
   void *     unUsed;
 
+  setThreadName("dnodeMPeerQ");
+  
   while (1) {
     if (taosReadQitemFromQset(tsMPeerQset, &type, (void **)&pPeerMsg, &unUsed) == 0) {
       dDebug("qset:%p, mnode peer got no message from qset, exiting", tsMPeerQset);

src/dnode/src/dnodeMRead.c

@@ -155,6 +155,8 @@ static void *dnodeProcessMReadQueue(void *param) {
   int32_t    type;
   void *     unUsed;
 
+  setThreadName("dnodeMReadQ");
+
   while (1) {
     if (taosReadQitemFromQset(tsMReadQset, &type, (void **)&pRead, &unUsed) == 0) {
       dDebug("qset:%p, mnode read got no message from qset, exiting", tsMReadQset);

src/dnode/src/dnodeMWrite.c

@@ -169,6 +169,8 @@ static void *dnodeProcessMWriteQueue(void *param) {
   int32_t    type;
   void *     unUsed;
 
+  setThreadName("dnodeMWriteQ");
+
   while (1) {
     if (taosReadQitemFromQset(tsMWriteQset, &type, (void **)&pWrite, &unUsed) == 0) {
       dDebug("qset:%p, mnode write got no message from qset, exiting", tsMWriteQset);

src/dnode/src/dnodeMain.c

@@ -42,6 +42,7 @@
 #include "module.h"
 #include "qScript.h"
 #include "mnode.h"
+#include "tscompression.h"
 
 #if !defined(_MODULE) || !defined(_TD_LINUX)
 int32_t moduleStart() { return 0; }
@@ -236,6 +237,12 @@ static void dnodeCheckDataDirOpenned(char *dir) {
 }
 
 static int32_t dnodeInitStorage() {
+#ifdef TD_TSZ
+  // compress module init
+  tsCompressInit();
+#endif
+
+  // storage module init
   if (tsDiskCfgNum == 1 && dnodeCreateDir(tsDataDir) < 0) {
     dError("failed to create dir: %s, reason: %s", tsDataDir, strerror(errno));
     return -1;
@@ -311,7 +318,15 @@ static int32_t dnodeInitStorage() {
   return 0;
 }
 
-static void dnodeCleanupStorage() { tfsDestroy(); }
+static void dnodeCleanupStorage() {
+  // storage destroy
+  tfsDestroy(); 
+
+ #ifdef TD_TSZ 
+  // compress destroy
+  tsCompressExit();
+ #endif 
+}
 
 bool  dnodeIsFirstDeploy() {
   return strcmp(tsFirst, tsLocalEp) == 0;

src/dnode/src/dnodeTelemetry.c

@@ -245,6 +245,8 @@ static void* telemetryThread(void* param) {
   clock_gettime(CLOCK_REALTIME, &end);
   end.tv_sec += 300; // wait 5 minutes before send first report
 
+  setThreadName("telemetryThrd");
+
   while (!tsExit) {
     int r = 0;
     struct timespec ts = end;

src/dnode/src/dnodeVMgmt.c

@@ -103,6 +103,8 @@ static void *dnodeProcessMgmtQueue(void *wparam) {
   int32_t      qtype;
   void *       handle;
 
+  setThreadName("dnodeMgmtQ");
+
   while (1) {
     if (taosReadQitemFromQset(pPool->qset, &qtype, (void **)&pMgmt, &handle) == 0) {
       dDebug("qdnode mgmt got no message from qset:%p, , exit", pPool->qset);

src/dnode/src/dnodeVRead.c

@@ -118,6 +118,11 @@ static void *dnodeProcessReadQueue(void *wparam) {
   SVReadMsg *  pRead;
   int32_t      qtype;
   void *       pVnode;
+  char         name[16];
+
+  memset(name, 0, 16);
+  snprintf(name, 16, "%s-dnReadQ", pPool->name);
+  setThreadName(name);
 
   while (1) {
     if (taosReadQitemFromQset(pPool->qset, &qtype, (void **)&pRead, &pVnode) == 0) {

src/dnode/src/dnodeVWrite.c

@@ -191,6 +191,8 @@ static void *dnodeProcessVWriteQueue(void *wparam) {
   taosBlockSIGPIPE();
   dDebug("dnode vwrite worker:%d is running", pWorker->workerId);
 
+  setThreadName("dnodeWriteQ");
+
   while (1) {
     numOfMsgs = taosReadAllQitemsFromQset(pWorker->qset, pWorker->qall, &pVnode);
     if (numOfMsgs == 0) {

src/dnode/src/dnodeVnodes.c

@@ -91,6 +91,8 @@ static void *dnodeOpenVnode(void *param) {
 
   dDebug("thread:%d, start to open %d vnodes", pThread->threadIndex, pThread->vnodeNum);
 
+  setThreadName("dnodeOpenVnode");
+
   for (int32_t v = 0; v < pThread->vnodeNum; ++v) {
     int32_t vgId = pThread->vnodeList[v];
     snprintf(stepDesc, TSDB_STEP_DESC_LEN, "vgId:%d, start to restore, %d of %d have been opened", vgId, tsOpenVnodes, tsTotalVnodes);

src/inc/taos.h

@@ -72,6 +72,7 @@ DLL_EXPORT int  taos_init();
 DLL_EXPORT void  taos_cleanup(void);
 DLL_EXPORT int   taos_options(TSDB_OPTION option, const void *arg, ...);
 DLL_EXPORT TAOS *taos_connect(const char *ip, const char *user, const char *pass, const char *db, uint16_t port);
+DLL_EXPORT TAOS *taos_connect_auth(const char *ip, const char *user, const char *auth, const char *db, uint16_t port);
 DLL_EXPORT void  taos_close(TAOS *taos);
 
 const char *taos_data_type(int type);
@@ -110,21 +111,23 @@ typedef struct TAOS_MULTI_BIND {
 } TAOS_MULTI_BIND;
 
 
-TAOS_STMT *taos_stmt_init(TAOS *taos);
-int        taos_stmt_prepare(TAOS_STMT *stmt, const char *sql, unsigned long length);
-int        taos_stmt_set_tbname_tags(TAOS_STMT* stmt, const char* name, TAOS_BIND* tags);
-int        taos_stmt_set_tbname(TAOS_STMT* stmt, const char* name);
-int        taos_stmt_is_insert(TAOS_STMT *stmt, int *insert);
-int        taos_stmt_num_params(TAOS_STMT *stmt, int *nums);
+
+DLL_EXPORT TAOS_STMT *taos_stmt_init(TAOS *taos);
+DLL_EXPORT int        taos_stmt_prepare(TAOS_STMT *stmt, const char *sql, unsigned long length);
+DLL_EXPORT int        taos_stmt_set_tbname_tags(TAOS_STMT* stmt, const char* name, TAOS_BIND* tags);
+DLL_EXPORT int        taos_stmt_set_tbname(TAOS_STMT* stmt, const char* name);
+DLL_EXPORT int        taos_stmt_set_sub_tbname(TAOS_STMT* stmt, const char* name);
+DLL_EXPORT int        taos_stmt_is_insert(TAOS_STMT *stmt, int *insert);
+DLL_EXPORT int        taos_stmt_num_params(TAOS_STMT *stmt, int *nums);
 int        taos_stmt_get_param(TAOS_STMT *stmt, int idx, int *type, int *bytes);
-int        taos_stmt_bind_param(TAOS_STMT *stmt, TAOS_BIND *bind);
+DLL_EXPORT int        taos_stmt_bind_param(TAOS_STMT *stmt, TAOS_BIND *bind);
 int        taos_stmt_bind_param_batch(TAOS_STMT* stmt, TAOS_MULTI_BIND* bind);
 int        taos_stmt_bind_single_param_batch(TAOS_STMT* stmt, TAOS_MULTI_BIND* bind, int colIdx);
-int        taos_stmt_add_batch(TAOS_STMT *stmt);
-int        taos_stmt_execute(TAOS_STMT *stmt);
-TAOS_RES * taos_stmt_use_result(TAOS_STMT *stmt);
-int        taos_stmt_close(TAOS_STMT *stmt);
-char *     taos_stmt_errstr(TAOS_STMT *stmt);
+DLL_EXPORT int        taos_stmt_add_batch(TAOS_STMT *stmt);
+DLL_EXPORT int        taos_stmt_execute(TAOS_STMT *stmt);
+DLL_EXPORT TAOS_RES * taos_stmt_use_result(TAOS_STMT *stmt);
+DLL_EXPORT int        taos_stmt_close(TAOS_STMT *stmt);
+DLL_EXPORT char *     taos_stmt_errstr(TAOS_STMT *stmt);
 
 DLL_EXPORT TAOS_RES *taos_query(TAOS *taos, const char *sql);
 DLL_EXPORT TAOS_ROW taos_fetch_row(TAOS_RES *res);
@@ -139,10 +142,10 @@ DLL_EXPORT int taos_print_row(char *str, TAOS_ROW row, TAOS_FIELD *fields, int n
 DLL_EXPORT void taos_stop_query(TAOS_RES *res);
 DLL_EXPORT bool taos_is_null(TAOS_RES *res, int32_t row, int32_t col);
 
-int taos_fetch_block(TAOS_RES *res, TAOS_ROW *rows);
-int taos_validate_sql(TAOS *taos, const char *sql);
+DLL_EXPORT int taos_fetch_block(TAOS_RES *res, TAOS_ROW *rows);
+DLL_EXPORT int taos_validate_sql(TAOS *taos, const char *sql);
 
-int* taos_fetch_lengths(TAOS_RES *res);
+DLL_EXPORT int* taos_fetch_lengths(TAOS_RES *res);
 
 // TAOS_RES   *taos_list_tables(TAOS *mysql, const char *wild);
 // TAOS_RES   *taos_list_dbs(TAOS *mysql, const char *wild);

src/inc/ttype.h

@@ -20,6 +20,18 @@ typedef struct tstr {
   char        data[];
 } tstr;
 
+#pragma pack(push, 1)
+typedef struct {
+  VarDataLenT len;
+  uint8_t     data;
+} SBinaryNullT;
+
+typedef struct {
+  VarDataLenT len;
+  uint32_t    data;
+} SNCharNullT;
+#pragma pack(pop)
+
 #define VARSTR_HEADER_SIZE  sizeof(VarDataLenT)
 
 #define varDataLen(v)       ((VarDataLenT *)(v))[0]
@@ -182,7 +194,7 @@ bool isValidDataType(int32_t type);
 void  setVardataNull(char* val, int32_t type);
 void  setNull(char *val, int32_t type, int32_t bytes);
 void  setNullN(char *val, int32_t type, int32_t bytes, int32_t numOfElems);
-void *getNullValue(int32_t type);
+const void *getNullValue(int32_t type);
 
 void assignVal(char *val, const char *src, int32_t len, int32_t type);
 void tsDataSwap(void *pLeft, void *pRight, int32_t type, int32_t size, void* buf);

src/kit/CMakeLists.txt

@@ -4,3 +4,4 @@ PROJECT(TDengine)
 ADD_SUBDIRECTORY(shell)
 ADD_SUBDIRECTORY(taosdemo)
 ADD_SUBDIRECTORY(taosdump)
+ADD_SUBDIRECTORY(taospack)

src/kit/shell/src/shellCheck.c

@@ -104,6 +104,8 @@ static void shellFreeTbnames() {
 static void *shellCheckThreadFp(void *arg) {
   ShellThreadObj *pThread = (ShellThreadObj *)arg;
 
+  setThreadName("shellCheckThrd");
+
   int32_t interval = tbNum / pThread->totalThreads + 1;
   int32_t start = pThread->threadIndex * interval;
   int32_t end = (pThread->threadIndex + 1) * interval;

src/kit/shell/src/shellDarwin.c

@@ -336,6 +336,8 @@ void *shellLoopQuery(void *arg) {
 
   TAOS *con = (TAOS *)arg;
 
+  setThreadName("shellLoopQuery");
+
   pthread_cleanup_push(cleanup_handler, NULL);
 
     char *command = malloc(MAX_COMMAND_SIZE);

src/kit/shell/src/shellImport.c

@@ -223,6 +223,8 @@ static void shellSourceFile(TAOS *con, char *fptr) {
 void* shellImportThreadFp(void *arg)
 {
   ShellThreadObj *pThread = (ShellThreadObj*)arg;
+  setThreadName("shellImportThrd");
+
   for (int f = 0; f < shellSQLFileNum; ++f) {
     if (f % pThread->totalThreads == pThread->threadIndex) {
       char *SQLFileName = shellSQLFiles[f];

src/kit/shell/src/shellLinux.c

@@ -336,6 +336,8 @@ void *shellLoopQuery(void *arg) {
 
   TAOS *con = (TAOS *)arg;
 
+  setThreadName("shellLoopQuery");
+
   pthread_cleanup_push(cleanup_handler, NULL);
 
   char *command = malloc(MAX_COMMAND_SIZE);

src/kit/shell/src/shellMain.c

@@ -26,6 +26,8 @@ void shellQueryInterruptHandler(int32_t signum, void *sigInfo, void *context) {
 }
 
 void *cancelHandler(void *arg) {
+  setThreadName("cancelHandler");
+
   while(1) {
     if (tsem_wait(&cancelSem) != 0) {
       taosMsleep(10);

src/kit/taosdemo/taosdemo.c

@@ -55,6 +55,11 @@
 
 #define STMT_IFACE_ENABLED  1
 #define NANO_SECOND_ENABLED  1
+#define SET_THREADNAME_ENABLED  1
+
+#if SET_THREADNAME_ENABLED == 0
+#define setThreadName(name)
+#endif
 
 #define REQ_EXTRA_BUF_LEN   1024
 #define RESP_BUF_LEN        4096
@@ -71,9 +76,9 @@ extern char configDir[];
 
 #define HEAD_BUFF_LEN       TSDB_MAX_COLUMNS*24  // 16*MAX_COLUMNS + (192+32)*2 + insert into ..
 
-#define COL_BUFFER_LEN      (TSDB_MAX_BYTES_PER_ROW - 50)
-#define BUFFER_SIZE         (50 + TSDB_DB_NAME_LEN + TSDB_TABLE_NAME_LEN + TSDB_MAX_BYTES_PER_ROW + TSDB_MAX_TAGS_LEN)
+#define BUFFER_SIZE         TSDB_MAX_ALLOWED_SQL_LEN
 #define COND_BUF_LEN        (BUFFER_SIZE - 30)
+#define COL_BUFFER_LEN      ((TSDB_COL_NAME_LEN + 15) * TSDB_MAX_COLUMNS)
 #define MAX_USERNAME_SIZE  64
 #define MAX_PASSWORD_SIZE  64
 #define MAX_HOSTNAME_SIZE  64
@@ -90,7 +95,7 @@ extern char configDir[];
 #define MAX_SUPER_TABLE_COUNT   200
 
 #define MAX_QUERY_SQL_COUNT     100
-#define MAX_QUERY_SQL_LENGTH    1024
+#define MAX_QUERY_SQL_LENGTH    BUFFER_SIZE
 
 #define MAX_DATABASE_COUNT      256
 #define INPUT_BUF_LEN           256
@@ -2367,7 +2372,25 @@ static char* getTagValueFromTagSample(SSuperTable* stbInfo, int tagUsePos) {
     return dataBuf;
 }
 
-static char* generateTagVaulesForStb(SSuperTable* stbInfo, int32_t tableSeq) {
+static char *generateBinaryNCharTagValues(int64_t tableSeq, uint32_t len)
+{
+    char* buf = (char*)calloc(len, 1);
+    if (NULL == buf) {
+        printf("calloc failed! size:%d\n", len);
+        return NULL;
+    }
+
+    if (tableSeq % 2) {
+        tstrncpy(buf, "beijing", len);
+    } else {
+        tstrncpy(buf, "shanghai", len);
+    }
+    //rand_string(buf, stbInfo->tags[i].dataLen);
+
+    return buf;
+}
+
+static char* generateTagValuesForStb(SSuperTable* stbInfo, int64_t tableSeq) {
     char*  dataBuf = (char*)calloc(TSDB_MAX_SQL_LEN+1, 1);
     if (NULL == dataBuf) {
         printf("calloc failed! size:%d\n", TSDB_MAX_SQL_LEN+1);
@@ -2388,70 +2411,62 @@ static char* generateTagVaulesForStb(SSuperTable* stbInfo, int32_t tableSeq) {
                 return NULL;
             }
 
-            int tagBufLen = stbInfo->tags[i].dataLen + 1;
-            char* buf = (char*)calloc(tagBufLen, 1);
+            int32_t tagBufLen = stbInfo->tags[i].dataLen + 1;
+            char *buf = generateBinaryNCharTagValues(tableSeq, tagBufLen);
             if (NULL == buf) {
-                printf("calloc failed! size:%d\n", stbInfo->tags[i].dataLen);
                 tmfree(dataBuf);
                 return NULL;
             }
-
-            if (tableSeq % 2) {
-                tstrncpy(buf, "beijing", tagBufLen);
-            } else {
-                tstrncpy(buf, "shanghai", tagBufLen);
-            }
-            //rand_string(buf, stbInfo->tags[i].dataLen);
             dataLen += snprintf(dataBuf + dataLen, TSDB_MAX_SQL_LEN - dataLen,
-                    "\'%s\', ", buf);
+                    "\'%s\',", buf);
             tmfree(buf);
         } else if (0 == strncasecmp(stbInfo->tags[i].dataType,
                     "int", strlen("int"))) {
             if ((g_args.demo_mode) && (i == 0)) {
                 dataLen += snprintf(dataBuf + dataLen,
                         TSDB_MAX_SQL_LEN - dataLen,
-                    "%d, ", tableSeq % 10);
+                    "%"PRId64",", tableSeq % 10);
             } else {
                 dataLen += snprintf(dataBuf + dataLen,
                         TSDB_MAX_SQL_LEN - dataLen,
-                    "%d, ", tableSeq);
+                    "%"PRId64",", tableSeq);
             }
         } else if (0 == strncasecmp(stbInfo->tags[i].dataType,
                     "bigint", strlen("bigint"))) {
             dataLen += snprintf(dataBuf + dataLen, TSDB_MAX_SQL_LEN - dataLen,
-                    "%"PRId64", ", rand_bigint());
+                    "%"PRId64",", rand_bigint());
         }  else if (0 == strncasecmp(stbInfo->tags[i].dataType,
                     "float", strlen("float"))) {
             dataLen += snprintf(dataBuf + dataLen, TSDB_MAX_SQL_LEN - dataLen,
-                    "%f, ", rand_float());
+                    "%f,", rand_float());
         }  else if (0 == strncasecmp(stbInfo->tags[i].dataType,
                     "double", strlen("double"))) {
             dataLen += snprintf(dataBuf + dataLen, TSDB_MAX_SQL_LEN - dataLen,
-                    "%f, ", rand_double());
+                    "%f,", rand_double());
         }  else if (0 == strncasecmp(stbInfo->tags[i].dataType,
                     "smallint", strlen("smallint"))) {
             dataLen += snprintf(dataBuf + dataLen, TSDB_MAX_SQL_LEN - dataLen,
-                    "%d, ", rand_smallint());
+                    "%d,", rand_smallint());
         }  else if (0 == strncasecmp(stbInfo->tags[i].dataType,
                     "tinyint", strlen("tinyint"))) {
             dataLen += snprintf(dataBuf + dataLen, TSDB_MAX_SQL_LEN - dataLen,
-                    "%d, ", rand_tinyint());
+                    "%d,", rand_tinyint());
         }  else if (0 == strncasecmp(stbInfo->tags[i].dataType,
                     "bool", strlen("bool"))) {
             dataLen += snprintf(dataBuf + dataLen, TSDB_MAX_SQL_LEN - dataLen,
-                    "%d, ", rand_bool());
+                    "%d,", rand_bool());
         }  else if (0 == strncasecmp(stbInfo->tags[i].dataType,
                     "timestamp", strlen("timestamp"))) {
             dataLen += snprintf(dataBuf + dataLen, TSDB_MAX_SQL_LEN - dataLen,
-                    "%"PRId64", ", rand_bigint());
+                    "%"PRId64",", rand_bigint());
         }  else {
-            printf("No support data type: %s\n", stbInfo->tags[i].dataType);
+            errorPrint("No support data type: %s\n", stbInfo->tags[i].dataType);
             tmfree(dataBuf);
             return NULL;
         }
     }
 
-    dataLen -= 2;
+    dataLen -= 1;
     dataLen += snprintf(dataBuf + dataLen, TSDB_MAX_SQL_LEN - dataLen, ")");
     return dataBuf;
 }
@@ -2723,12 +2738,12 @@ static int createSuperTable(
 
         if (strcasecmp(dataType, "BINARY") == 0) {
             len += snprintf(cols + len, COL_BUFFER_LEN - len,
-                    ", C%d %s(%d)", colIndex, "BINARY",
+                    ",C%d %s(%d)", colIndex, "BINARY",
                     superTbl->columns[colIndex].dataLen);
             lenOfOneRow += superTbl->columns[colIndex].dataLen + 3;
         } else if (strcasecmp(dataType, "NCHAR") == 0) {
             len += snprintf(cols + len, COL_BUFFER_LEN - len,
-                    ", C%d %s(%d)", colIndex, "NCHAR",
+                    ",C%d %s(%d)", colIndex, "NCHAR",
                     superTbl->columns[colIndex].dataLen);
             lenOfOneRow += superTbl->columns[colIndex].dataLen + 3;
         } else if (strcasecmp(dataType, "INT") == 0)  {
@@ -2736,22 +2751,22 @@ static int createSuperTable(
                     len += snprintf(cols + len, COL_BUFFER_LEN - len,
                             ", VOLTAGE INT");
             } else {
-                len += snprintf(cols + len, COL_BUFFER_LEN - len, ", C%d %s", colIndex, "INT");
+                len += snprintf(cols + len, COL_BUFFER_LEN - len, ",C%d %s", colIndex, "INT");
             }
             lenOfOneRow += 11;
         } else if (strcasecmp(dataType, "BIGINT") == 0)  {
-            len += snprintf(cols + len, COL_BUFFER_LEN - len, ", C%d %s",
+            len += snprintf(cols + len, COL_BUFFER_LEN - len, ",C%d %s",
                     colIndex, "BIGINT");
             lenOfOneRow += 21;
         } else if (strcasecmp(dataType, "SMALLINT") == 0)  {
-            len += snprintf(cols + len, COL_BUFFER_LEN - len, ", C%d %s",
+            len += snprintf(cols + len, COL_BUFFER_LEN - len, ",C%d %s",
                     colIndex, "SMALLINT");
             lenOfOneRow += 6;
         } else if (strcasecmp(dataType, "TINYINT") == 0)  {
-            len += snprintf(cols + len, COL_BUFFER_LEN - len, ", C%d %s", colIndex, "TINYINT");
+            len += snprintf(cols + len, COL_BUFFER_LEN - len, ",C%d %s", colIndex, "TINYINT");
             lenOfOneRow += 4;
         } else if (strcasecmp(dataType, "BOOL") == 0)  {
-            len += snprintf(cols + len, COL_BUFFER_LEN - len, ", C%d %s", colIndex, "BOOL");
+            len += snprintf(cols + len, COL_BUFFER_LEN - len, ",C%d %s", colIndex, "BOOL");
             lenOfOneRow += 6;
         } else if (strcasecmp(dataType, "FLOAT") == 0) {
             if (g_args.demo_mode) {
@@ -2761,16 +2776,16 @@ static int createSuperTable(
                     len += snprintf(cols + len, COL_BUFFER_LEN - len, ", PHASE FLOAT");
                 }
             } else {
-                len += snprintf(cols + len, COL_BUFFER_LEN - len, ", C%d %s", colIndex, "FLOAT");
+                len += snprintf(cols + len, COL_BUFFER_LEN - len, ",C%d %s", colIndex, "FLOAT");
             }
 
             lenOfOneRow += 22;
         } else if (strcasecmp(dataType, "DOUBLE") == 0) {
-            len += snprintf(cols + len, COL_BUFFER_LEN - len, ", C%d %s",
+            len += snprintf(cols + len, COL_BUFFER_LEN - len, ",C%d %s",
                     colIndex, "DOUBLE");
             lenOfOneRow += 42;
         }  else if (strcasecmp(dataType, "TIMESTAMP") == 0) {
-            len += snprintf(cols + len, COL_BUFFER_LEN - len, ", C%d %s",
+            len += snprintf(cols + len, COL_BUFFER_LEN - len, ",C%d %s",
                     colIndex, "TIMESTAMP");
             lenOfOneRow += 21;
         } else {
@@ -2814,17 +2829,17 @@ static int createSuperTable(
         if (strcasecmp(dataType, "BINARY") == 0) {
             if ((g_args.demo_mode) && (tagIndex == 1)) {
                 len += snprintf(tags + len, TSDB_MAX_TAGS_LEN - len,
-                        "location BINARY(%d), ",
+                        "location BINARY(%d),",
                         superTbl->tags[tagIndex].dataLen);
             } else {
                 len += snprintf(tags + len, TSDB_MAX_TAGS_LEN - len,
-                        "t%d %s(%d), ", tagIndex, "BINARY",
+                        "T%d %s(%d),", tagIndex, "BINARY",
                         superTbl->tags[tagIndex].dataLen);
             }
             lenOfTagOfOneRow += superTbl->tags[tagIndex].dataLen + 3;
         } else if (strcasecmp(dataType, "NCHAR") == 0) {
             len += snprintf(tags + len, TSDB_MAX_TAGS_LEN - len,
-                    "t%d %s(%d), ", tagIndex,
+                    "T%d %s(%d),", tagIndex,
                     "NCHAR", superTbl->tags[tagIndex].dataLen);
             lenOfTagOfOneRow += superTbl->tags[tagIndex].dataLen + 3;
         } else if (strcasecmp(dataType, "INT") == 0)  {
@@ -2833,32 +2848,32 @@ static int createSuperTable(
                         "groupId INT, ");
             } else {
                 len += snprintf(tags + len, TSDB_MAX_TAGS_LEN - len,
-                        "t%d %s, ", tagIndex, "INT");
+                        "T%d %s,", tagIndex, "INT");
             }
             lenOfTagOfOneRow += superTbl->tags[tagIndex].dataLen + 11;
         } else if (strcasecmp(dataType, "BIGINT") == 0)  {
             len += snprintf(tags + len, TSDB_MAX_TAGS_LEN - len,
-                    "t%d %s, ", tagIndex, "BIGINT");
+                    "T%d %s,", tagIndex, "BIGINT");
             lenOfTagOfOneRow += superTbl->tags[tagIndex].dataLen + 21;
         } else if (strcasecmp(dataType, "SMALLINT") == 0)  {
             len += snprintf(tags + len, TSDB_MAX_TAGS_LEN - len,
-                    "t%d %s, ", tagIndex, "SMALLINT");
+                    "T%d %s,", tagIndex, "SMALLINT");
             lenOfTagOfOneRow += superTbl->tags[tagIndex].dataLen + 6;
         } else if (strcasecmp(dataType, "TINYINT") == 0)  {
             len += snprintf(tags + len, TSDB_MAX_TAGS_LEN - len,
-                    "t%d %s, ", tagIndex, "TINYINT");
+                    "T%d %s,", tagIndex, "TINYINT");
             lenOfTagOfOneRow += superTbl->tags[tagIndex].dataLen + 4;
         } else if (strcasecmp(dataType, "BOOL") == 0)  {
             len += snprintf(tags + len, TSDB_MAX_TAGS_LEN - len,
-                    "t%d %s, ", tagIndex, "BOOL");
+                    "T%d %s,", tagIndex, "BOOL");
             lenOfTagOfOneRow += superTbl->tags[tagIndex].dataLen + 6;
         } else if (strcasecmp(dataType, "FLOAT") == 0) {
             len += snprintf(tags + len, TSDB_MAX_TAGS_LEN - len,
-                    "t%d %s, ", tagIndex, "FLOAT");
+                    "T%d %s,", tagIndex, "FLOAT");
             lenOfTagOfOneRow += superTbl->tags[tagIndex].dataLen + 22;
         } else if (strcasecmp(dataType, "DOUBLE") == 0) {
             len += snprintf(tags + len, TSDB_MAX_TAGS_LEN - len,
-                    "t%d %s, ", tagIndex, "DOUBLE");
+                    "T%d %s,", tagIndex, "DOUBLE");
             lenOfTagOfOneRow += superTbl->tags[tagIndex].dataLen + 42;
         } else {
             taos_close(taos);
@@ -2868,7 +2883,7 @@ static int createSuperTable(
         }
     }
 
-    len -= 2;
+    len -= 1;
     len += snprintf(tags + len, TSDB_MAX_TAGS_LEN - len, ")");
 
     superTbl->lenOfTagOfOneRow = lenOfTagOfOneRow;
@@ -3025,10 +3040,11 @@ static void* createTable(void *sarg)
     threadInfo *pThreadInfo = (threadInfo *)sarg;
     SSuperTable* superTblInfo = pThreadInfo->superTblInfo;
 
+    setThreadName("createTable");
+
     uint64_t  lastPrintTime = taosGetTimestampMs();
 
-    int buff_len;
-    buff_len = BUFFER_SIZE;
+    int buff_len = BUFFER_SIZE;
 
     pThreadInfo->buffer = calloc(buff_len, 1);
     if (pThreadInfo->buffer == NULL) {
@@ -3066,7 +3082,7 @@ static void* createTable(void *sarg)
                 }
                 char* tagsValBuf = NULL;
                 if (0 == superTblInfo->tagSource) {
-                    tagsValBuf = generateTagVaulesForStb(superTblInfo, i);
+                    tagsValBuf = generateTagValuesForStb(superTblInfo, i);
                 } else {
                     tagsValBuf = getTagValueFromTagSample(
                             superTblInfo,
@@ -5318,7 +5334,7 @@ static int generateSQLHeadWithoutStb(char *tableName,
 
 static int generateStbSQLHead(
         SSuperTable* superTblInfo,
-        char *tableName, int32_t tableSeq,
+        char *tableName, int64_t tableSeq,
         char *dbName,
         char *buffer, int remainderBufLen)
 {
@@ -5329,7 +5345,7 @@ static int generateStbSQLHead(
     if (AUTO_CREATE_SUBTBL == superTblInfo->autoCreateTable) {
         char* tagsValBuf = NULL;
         if (0 == superTblInfo->tagSource) {
-            tagsValBuf = generateTagVaulesForStb(superTblInfo, tableSeq);
+            tagsValBuf = generateTagValuesForStb(superTblInfo, tableSeq);
         } else {
             tagsValBuf = getTagValueFromTagSample(
                     superTblInfo,
@@ -5344,7 +5360,7 @@ static int generateStbSQLHead(
         len = snprintf(
                 headBuf,
                 HEAD_BUFF_LEN,
-                  "%s.%s using %s.%s tags %s values",
+                "%s.%s using %s.%s TAGS%s values",
                 dbName,
                 tableName,
                 dbName,
@@ -5650,8 +5666,7 @@ static int32_t prepareStmtBindArrayByType(TAOS_BIND *bind,
 
         *ptr += bind->buffer_length;
     }  else {
-        errorPrint( "No support data type: %s\n",
-                dataType);
+        errorPrint( "No support data type: %s\n", dataType);
         return -1;
     }
 
@@ -5737,64 +5752,40 @@ static int32_t prepareStmtWithoutStb(
     return k;
 }
 
-static int32_t prepareStbStmt(
-        SSuperTable *stbInfo,
-        TAOS_STMT *stmt,
-        char *tableName, uint32_t batch,
-        uint64_t insertRows,
-        uint64_t recordFrom,
-        int64_t startTime,
-        int64_t *pSamplePos)
+static int32_t prepareStbStmtBind(
+        char *bindArray, SSuperTable *stbInfo, bool sourceRand,
+        int64_t startTime, int32_t recSeq,
+        bool isColumn)
 {
-    int ret = taos_stmt_set_tbname(stmt, tableName);
-    if (ret != 0) {
-        errorPrint("failed to execute taos_stmt_set_tbname(%s). return 0x%x. reason: %s\n",
-                tableName, ret, taos_errstr(NULL));
-        return ret;
-    }
-
-    char *bindArray = malloc(sizeof(TAOS_BIND) * (stbInfo->columnCount + 1));
-    if (bindArray == NULL) {
-        errorPrint("%s() LN%d, Failed to allocate %d bind params\n",
-                __func__, __LINE__, (stbInfo->columnCount + 1));
-        return -1;
-    }
-
-    bool sourceRand;
-    if (0 == strncasecmp(stbInfo->dataSource, "rand", strlen("rand"))) {
-        sourceRand = true;
-    } else {
-        sourceRand = false;     // from sample data file
-    }
-
-    char *bindBuffer = malloc(g_args.len_of_binary);
+    char *bindBuffer = calloc(1, g_args.len_of_binary);
     if (bindBuffer == NULL) {
         errorPrint("%s() LN%d, Failed to allocate %d bind buffer\n",
                 __func__, __LINE__, g_args.len_of_binary);
-        free(bindArray);
         return -1;
     }
 
-    uint32_t k;
-    for (k = 0; k < batch;) {
-        /* columnCount + 1 (ts) */
     char data[MAX_DATA_SIZE];
     memset(data, 0, MAX_DATA_SIZE);
-
     char *ptr = data;
-        TAOS_BIND *bind = (TAOS_BIND *)(bindArray + 0);
 
+    TAOS_BIND *bind;
+
+    if (isColumn) {
+        for (int i = 0; i < stbInfo->columnCount + 1; i ++) {
+            bind = (TAOS_BIND *)((char *)bindArray + (sizeof(TAOS_BIND) * i));
+
+            if (i == 0) {
                 int64_t *bind_ts;
 
                 bind_ts = (int64_t *)ptr;
                 bind->buffer_type = TSDB_DATA_TYPE_TIMESTAMP;
                 if (stbInfo->disorderRatio) {
                     *bind_ts = startTime + getTSRandTail(
-                    stbInfo->timeStampStep, k,
+                            stbInfo->timeStampStep, recSeq,
                             stbInfo->disorderRatio,
                             stbInfo->disorderRange);
                 } else {
-            *bind_ts = startTime + stbInfo->timeStampStep * k;
+                    *bind_ts = startTime + stbInfo->timeStampStep * recSeq;
                 }
                 bind->buffer_length = sizeof(int64_t);
                 bind->buffer = bind_ts;
@@ -5802,19 +5793,16 @@ static int32_t prepareStbStmt(
                 bind->is_null = NULL;
 
                 ptr += bind->buffer_length;
-
+            } else {
                 int cursor = 0;
-        for (int i = 0; i < stbInfo->columnCount; i ++) {
-            bind = (TAOS_BIND *)((char *)bindArray + (sizeof(TAOS_BIND) * (i + 1)));
 
                 if (sourceRand) {
                     if ( -1 == prepareStmtBindArrayByType(
                                 bind,
-                            stbInfo->columns[i].dataType,
-                            stbInfo->columns[i].dataLen,
+                                stbInfo->columns[i-1].dataType,
+                                stbInfo->columns[i-1].dataLen,
                                 &ptr,
                                 NULL)) {
-                    free(bindArray);
                         free(bindBuffer);
                         return -1;
                     }
@@ -5835,16 +5823,120 @@ static int32_t prepareStbStmt(
 
                     if ( -1 == prepareStmtBindArrayByType(
                                 bind,
-                            stbInfo->columns[i].dataType,
-                            stbInfo->columns[i].dataLen,
+                                stbInfo->columns[i-1].dataType,
+                                stbInfo->columns[i-1].dataLen,
                                 &ptr,
                                 bindBuffer)) {
-                    free(bindArray);
                         free(bindBuffer);
                         return -1;
                     }
                 }
             }
+        }
+    } else {
+        TAOS_BIND *tag;
+
+        for (int t = 0; t < stbInfo->tagCount; t ++) {
+            tag = (TAOS_BIND *)((char *)bindArray + (sizeof(TAOS_BIND) * t));
+            if ( -1 == prepareStmtBindArrayByType(
+                        tag,
+                        stbInfo->tags[t].dataType,
+                        stbInfo->tags[t].dataLen,
+                        &ptr,
+                        NULL)) {
+                free(bindBuffer);
+                return -1;
+            }
+        }
+
+    }
+
+    return 0;
+}
+
+static int32_t prepareStbStmt(
+        SSuperTable *stbInfo,
+        TAOS_STMT *stmt,
+        char *tableName,
+        int64_t tableSeq,
+        uint32_t batch,
+        uint64_t insertRows,
+        uint64_t recordFrom,
+        int64_t startTime,
+        int64_t *pSamplePos)
+{
+    int ret;
+
+    bool sourceRand;
+    if (0 == strncasecmp(stbInfo->dataSource, "rand", strlen("rand"))) {
+        sourceRand = true;
+    } else {
+        sourceRand = false;     // from sample data file
+    }
+
+    if (AUTO_CREATE_SUBTBL == stbInfo->autoCreateTable) {
+        char* tagsValBuf = NULL;
+
+        bool tagRand;
+        if (0 == stbInfo->tagSource) {
+            tagRand = true;
+            tagsValBuf = generateTagValuesForStb(stbInfo, tableSeq);
+        } else {
+            tagRand = false;
+            tagsValBuf = getTagValueFromTagSample(
+                    stbInfo,
+                    tableSeq % stbInfo->tagSampleCount);
+        }
+
+        if (NULL == tagsValBuf) {
+            errorPrint("%s() LN%d, tag buf failed to allocate  memory\n",
+                    __func__, __LINE__);
+            return -1;
+        }
+
+        char *tagsArray = calloc(1, sizeof(TAOS_BIND) * stbInfo->tagCount);
+        if (NULL == tagsArray) {
+            tmfree(tagsValBuf);
+            errorPrint("%s() LN%d, tag buf failed to allocate  memory\n",
+                    __func__, __LINE__);
+            return -1;
+        }
+
+        if (-1 == prepareStbStmtBind(
+                    tagsArray, stbInfo, tagRand, -1, -1, false /* is tag */)) {
+            free(tagsArray);
+            return -1;
+        }
+
+        ret = taos_stmt_set_tbname_tags(stmt, tableName, (TAOS_BIND *)tagsArray);
+
+        tmfree(tagsValBuf);
+        tmfree((char *)tagsArray);
+    } else {
+        ret = taos_stmt_set_tbname(stmt, tableName);
+    }
+
+    if (ret != 0) {
+        errorPrint("failed to execute taos_stmt_set_tbname(%s). return 0x%x. reason: %s\n",
+                tableName, ret, taos_errstr(NULL));
+        return ret;
+    }
+
+    char *bindArray = calloc(1, sizeof(TAOS_BIND) * (stbInfo->columnCount + 1));
+    if (bindArray == NULL) {
+        errorPrint("%s() LN%d, Failed to allocate %d bind params\n",
+                __func__, __LINE__, (stbInfo->columnCount + 1));
+        return -1;
+    }
+
+    uint32_t k;
+    for (k = 0; k < batch;) {
+        /* columnCount + 1 (ts) */
+        if (-1 == prepareStbStmtBind(bindArray, stbInfo, sourceRand,
+                    startTime, k, true /* is column */)) {
+            free(bindArray);
+            return -1;
+        }
         taos_stmt_bind_param(stmt, (TAOS_BIND *)bindArray);
         // if msg > 3MB, break
         taos_stmt_add_batch(stmt);
@@ -5861,7 +5953,6 @@ static int32_t prepareStbStmt(
         }
     }
 
-    free(bindBuffer);
     free(bindArray);
     return k;
 }
@@ -5869,7 +5960,9 @@ static int32_t prepareStbStmt(
 static int32_t prepareStbStmtInterlace(
         SSuperTable *stbInfo,
         TAOS_STMT *stmt,
-        char *tableName, uint32_t batch,
+        char *tableName,
+        int64_t tableSeq,
+        uint32_t batch,
         uint64_t insertRows,
         uint64_t recordFrom,
         int64_t startTime,
@@ -5879,6 +5972,7 @@ static int32_t prepareStbStmtInterlace(
             stbInfo,
             stmt,
             tableName,
+            tableSeq,
             batch,
             insertRows, 0, startTime,
             pSamplePos);
@@ -5887,7 +5981,9 @@ static int32_t prepareStbStmtInterlace(
 static int32_t prepareStbStmtProgressive(
         SSuperTable *stbInfo,
         TAOS_STMT *stmt,
-        char *tableName, uint32_t batch,
+        char *tableName,
+        int64_t tableSeq,
+        uint32_t batch,
         uint64_t insertRows,
         uint64_t recordFrom,
         int64_t startTime,
@@ -5897,6 +5993,7 @@ static int32_t prepareStbStmtProgressive(
             stbInfo,
             stmt,
             tableName,
+            tableSeq,
             g_args.num_of_RPR,
             insertRows, recordFrom, startTime,
             pSamplePos);
@@ -6097,6 +6194,7 @@ static void* syncWriteInterlace(threadInfo *pThreadInfo) {
                             superTblInfo,
                             pThreadInfo->stmt,
                             tableName,
+                            tableSeq,
                             batchPerTbl,
                             insertRows, i,
                             startTime,
@@ -6326,6 +6424,7 @@ static void* syncWriteProgressive(threadInfo *pThreadInfo) {
                             superTblInfo,
                             pThreadInfo->stmt,
                             tableName,
+                            tableSeq,
                             g_args.num_of_RPR,
                             insertRows, i, start_time,
                             &(pThreadInfo->samplePos));
@@ -6428,6 +6527,8 @@ static void* syncWrite(void *sarg) {
     threadInfo *pThreadInfo = (threadInfo *)sarg;
     SSuperTable* superTblInfo = pThreadInfo->superTblInfo;
 
+    setThreadName("syncWrite");
+
     uint32_t interlaceRows;
 
     if (superTblInfo) {
@@ -6513,6 +6614,8 @@ static void *asyncWrite(void *sarg) {
   threadInfo *pThreadInfo = (threadInfo *)sarg;
   SSuperTable* superTblInfo = pThreadInfo->superTblInfo;
 
+  setThreadName("asyncWrite");
+
   pThreadInfo->st = 0;
   pThreadInfo->et = 0;
   pThreadInfo->lastTs = pThreadInfo->start_time;
@@ -6590,6 +6693,8 @@ static void startMultiThreadInsertData(int threads, char* db_name,
     } else {
         start_time = 1500000000000;
     }
+    debugPrint("%s() LN%d, start_time= %"PRId64"\n",
+            __func__, __LINE__, start_time);
 
     int64_t start = taosGetTimestampMs();
 
@@ -6752,7 +6857,7 @@ static void startMultiThreadInsertData(int threads, char* db_name,
                     exit(-1);
                 }
 
-                char buffer[3000];
+                char buffer[BUFFER_SIZE];
                 char *pstr = buffer;
 
                 if ((superTblInfo)
@@ -6911,6 +7016,7 @@ static void *readTable(void *sarg) {
 #if 1
   threadInfo *pThreadInfo = (threadInfo *)sarg;
   TAOS *taos = pThreadInfo->taos;
+  setThreadName("readTable");
   char command[BUFFER_SIZE] = "\0";
   uint64_t sTime = pThreadInfo->start_time;
   char *tb_prefix = pThreadInfo->tb_prefix;
@@ -6983,6 +7089,7 @@ static void *readMetric(void *sarg) {
 #if 1
   threadInfo *pThreadInfo = (threadInfo *)sarg;
   TAOS *taos = pThreadInfo->taos;
+  setThreadName("readMetric");
   char command[BUFFER_SIZE] = "\0";
   FILE *fp = fopen(pThreadInfo->filePath, "a");
   if (NULL == fp) {
@@ -7159,6 +7266,8 @@ static int insertTestProcess() {
 static void *specifiedTableQuery(void *sarg) {
   threadInfo *pThreadInfo = (threadInfo *)sarg;
 
+  setThreadName("specTableQuery");
+
   if (pThreadInfo->taos == NULL) {
     TAOS * taos = NULL;
     taos = taos_connect(g_queryInfo.host,
@@ -7258,6 +7367,8 @@ static void *superTableQuery(void *sarg) {
   char sqlstr[MAX_QUERY_SQL_LENGTH];
   threadInfo *pThreadInfo = (threadInfo *)sarg;
 
+  setThreadName("superTableQuery");
+
   if (pThreadInfo->taos == NULL) {
     TAOS * taos = NULL;
     taos = taos_connect(g_queryInfo.host,
@@ -7560,6 +7671,8 @@ static void *superSubscribe(void *sarg) {
     TAOS_SUB*    tsub[MAX_QUERY_SQL_COUNT] = {0};
     uint64_t tsubSeq;
 
+    setThreadName("superSub");
+
     if (pThreadInfo->ntables > MAX_QUERY_SQL_COUNT) {
         errorPrint("The table number(%"PRId64") of the thread is more than max query sql count: %d\n",
                 pThreadInfo->ntables, MAX_QUERY_SQL_COUNT);
@@ -7706,6 +7819,8 @@ static void *specifiedSubscribe(void *sarg) {
   threadInfo *pThreadInfo = (threadInfo *)sarg;
 //  TAOS_SUB*  tsub = NULL;
 
+  setThreadName("specSub");
+
   if (pThreadInfo->taos == NULL) {
     pThreadInfo->taos = taos_connect(g_queryInfo.host,
           g_queryInfo.user,

src/kit/taosdump/taosdump.c

@@ -1474,6 +1474,8 @@ static void* taosDumpOutWorkThreadFp(void *arg)
     STableRecord    tableRecord;
     int fd;
 
+    setThreadName("dumpOutWorkThrd");
+
     char tmpBuf[4096] = {0};
     sprintf(tmpBuf, ".tables.tmp.%d", pThread->threadIndex);
     fd = open(tmpBuf, O_RDWR | O_CREAT, S_IRWXU | S_IRGRP | S_IXGRP | S_IROTH);
@@ -2571,6 +2573,8 @@ static int taosDumpInOneFile(TAOS* taos, FILE* fp, char* fcharset,
 static void* taosDumpInWorkThreadFp(void *arg)
 {
     SThreadParaObj *pThread = (SThreadParaObj*)arg;
+    setThreadName("dumpInWorkThrd");
+
     for (int32_t f = 0; f < g_tsSqlFileNum; ++f) {
         if (f % pThread->totalThreads == pThread->threadIndex) {
             char *SQLFileName = g_tsDumpInSqlFiles[f];

src/kit/taospack/CMakeLists.txt

+CMAKE_MINIMUM_REQUIRED(VERSION 2.8)
+PROJECT(TDengine)
+
+INCLUDE_DIRECTORIES(${TD_COMMUNITY_DIR}/src/util/inc)
+INCLUDE_DIRECTORIES(${TD_COMMUNITY_DIR}/src/os/inc)
+INCLUDE_DIRECTORIES(inc)
+
+IF (TD_LINUX)
+  AUX_SOURCE_DIRECTORY(. SRC)
+  ADD_EXECUTABLE(taospack ${SRC})
+  TARGET_LINK_LIBRARIES(taospack os tutil tsdb ${VAR_TSZ})
+ELSEIF (TD_WINDOWS)
+  AUX_SOURCE_DIRECTORY(. SRC)
+  ADD_EXECUTABLE(taospack ${SRC})
+  TARGET_LINK_LIBRARIES(taospack)
+ELSEIF (TD_DARWIN)
+  # MAC
+  AUX_SOURCE_DIRECTORY(. SRC)
+  ADD_EXECUTABLE(taospack ${SRC})
+  TARGET_LINK_LIBRARIES(taospack os tutil tsdb)
+ENDIF ()
\ No newline at end of file

src/kit/taospack/taospack.c

+
+
+/*
+ * Copyright (c) 2019 TAOS Data, Inc. <jhtao@taosdata.com>
+ *
+ * This program is free software: you can use, redistribute, and/or modify
+ * it under the terms of the GNU Affero General Public License, version 3
+ * or later ("AGPL"), as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#if defined(WINDOWS) 
+int main(int argc, char *argv[]) {
+  printf("welcome to use taospack tools v1.3 for windows.\n");
+}
+#elif !defined(TD_TSZ) 
+int main(int argc, char *argv[]) {
+  printf(" welcome taospack. \n You not open TSZ , please define TD_TSZ to open TSZ algo.\n");
+}
+#else
+
+#include "os.h"
+#include "tscompression.h"
+#include "tdataformat.h"
+
+
+
+// ------- define -----------
+#define FT_CNT  8
+
+// ------- function declare --------
+void cost_start();
+double cost_end(const char* tag);
+int notsame_cnt  = 0;
+
+// ------- global declare -----------
+float g_ft1[ ] = {\
+  3.8959999084472656, 3.8970000743865967, 3.8980000019073486, 3.8980000019073486, 3.8970000743865967, 3.8970000743865967, 3.8970000743865967, 3.8949999809265137, 3.8959999084472656, 3.8959999084472656, 3.8959999084472656, 3.8970000743865967, 3.8970000743865967, 3.8959999084472656, 3.8980000019073486, 3.8970000743865967, 3.8970000743865967, 3.8959999084472656, 3.8980000019073486, 3.8959999084472656, 3.8949999809265137, 3.8959999084472656, 3.8949999809265137, 3.8970000743865967, 3.8959999084472656, 3.8959999084472656, 3.8970000743865967, 3.8970000743865967, 3.8959999084472656, 3.8959999084472656, 3.8980000019073486, 3.8949999809265137, 3.8980000019073486, 3.8970000743865967, 3.8970000743865967, 3.8970000743865967, 3.8970000743865967, 3.8949999809265137, 3.8959999084472656, 3.8970000743865967, 3.8959999084472656, 3.8970000743865967, 3.8980000019073486, 3.8949999809265137, 3.8970000743865967, 3.8970000743865967, 3.8959999084472656, 3.8980000019073486, 3.8970000743865967, 3.8959999084472656, 3.8970000743865967, 3.8980000019073486, 3.8970000743865967, 3.8959999084472656, 3.8970000743865967, 3.8959999084472656, 3.8949999809265137, 3.8940000534057617, 3.8959999084472656, 3.8970000743865967, 3.8970000743865967, 3.8970000743865967, 3.8970000743865967, 3.8959999084472656, 3.8959999084472656, 3.8970000743865967, 3.8980000019073486, 3.8959999084472656, 3.8949999809265137, 3.8959999084472656, 3.8959999084472656, 3.8970000743865967, 3.8980000019073486, 3.8949999809265137, 3.8959999084472656, 3.8980000019073486, 3.8970000743865967, 3.8949999809265137, 3.8959999084472656, 3.8949999809265137, 3.8959999084472656, 3.8949999809265137, 3.8949999809265137, 3.8959999084472656, 3.8970000743865967, 3.8959999084472656, 3.8970000743865967, 3.8959999084472656, 3.8970000743865967, 3.8970000743865967, 3.8949999809265137, 3.8940000534057617, 3.8970000743865967, 3.8949999809265137, 3.8959999084472656, 3.8949999809265137, 3.8980000019073486, 3.8959999084472656, 3.8970000743865967, 3.8959999084472656, 3.8959999084472656, 3.8959999084472656, 3.8970000743865967, 3.8940000534057617, 3.8949999809265137, 3.8949999809265137, 3.8959999084472656, 3.8959999084472656, 3.8949999809265137, 3.8959999084472656, 3.8970000743865967, 3.8959999084472656, 3.8959999084472656, 3.8959999084472656, 3.8980000019073486, 3.8959999084472656, 3.8949999809265137, 3.8959999084472656, 3.8959999084472656, 3.8959999084472656, 3.8959999084472656, 3.8949999809265137, 3.8959999084472656, 3.8970000743865967, 3.8949999809265137, 3.8959999084472656, 3.8959999084472656, 3.8940000534057617, 3.8959999084472656, 3.8959999084472656, 3.8949999809265137, 3.8959999084472656, 3.8959999084472656, 3.8970000743865967, 3.8959999084472656, 3.8970000743865967, 3.8970000743865967, 3.8959999084472656, 3.8989999294281006, 3.8959999084472656, 3.8959999084472656, 3.8949999809265137, 3.8949999809265137, 3.8970000743865967, 3.8949999809265137, 3.8949999809265137, 3.8970000743865967, 3.8959999084472656, 3.8959999084472656, 3.8959999084472656, 3.8959999084472656, 3.8949999809265137, 3.8959999084472656, 3.8940000534057617, 3.8959999084472656, 3.8959999084472656, 3.8959999084472656, 3.8949999809265137, 3.8929998874664307, 3.8940000534057617, 3.8949999809265137, 3.8949999809265137, 3.8959999084472656, 3.8959999084472656, 3.8949999809265137, 3.8949999809265137, 3.8949999809265137, 3.8949999809265137, 3.8970000743865967, 3.8959999084472656, 3.8970000743865967, 3.8970000743865967, 3.8949999809265137, 3.8959999084472656, 3.9010000228881836, 3.8949999809265137, 3.8949999809265137, 3.8949999809265137, 3.8940000534057617, 3.8959999084472656, 3.8959999084472656, 3.8959999084472656, 3.8970000743865967, 3.8970000743865967, 3.8980000019073486, 3.8970000743865967, 3.8989999294281006, 3.8959999084472656, 3.8959999084472656, 3.8959999084472656, 3.8949999809265137, 3.8940000534057617\
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+  };
+
+double g_de1[ ] = {\
+  3.895999908447265612345, 3.897000074386596701234, 3.89800000190734860123456789, 3.8980000019073486, 3.8970000743865967, 3.8970000743865967, 3.8970000743865967, 3.8949999809265137, 3.8959999084472656, 3.8959999084472656, 3.8959999084472656, 3.8970000743865967, 3.8970000743865967, 3.8959999084472656, 3.8980000019073486, 3.8970000743865967, 3.8970000743865967, 3.8959999084472656, 3.8980000019073486, 3.8959999084472656, 3.8949999809265137, 3.8959999084472656, 3.8949999809265137, 3.8970000743865967, 3.8959999084472656, 3.8959999084472656, 3.8970000743865967, 3.8970000743865967, 3.8959999084472656, 3.8959999084472656, 3.8980000019073486, 3.8949999809265137, 3.8980000019073486, 3.8970000743865967, 3.8970000743865967, 3.8970000743865967, 3.8970000743865967, 3.8949999809265137, 3.8959999084472656, 3.8970000743865967, 3.8959999084472656, 3.8970000743865967, 3.8980000019073486, 3.8949999809265137, 3.8970000743865967, 3.8970000743865967, 3.8959999084472656, 3.8980000019073486, 3.8970000743865967, 3.8959999084472656, 3.8970000743865967, 3.8980000019073486, 3.8970000743865967, 3.8959999084472656, 3.8970000743865967, 3.8959999084472656, 3.8949999809265137, 3.8940000534057617, 3.8959999084472656, 3.8970000743865967, 3.8970000743865967, 3.8970000743865967, 3.8970000743865967, 3.8959999084472656, 3.8959999084472656, 3.8970000743865967, 3.8980000019073486, 3.8959999084472656, 3.8949999809265137, 3.8959999084472656, 3.8959999084472656, 3.8970000743865967, 3.8980000019073486, 3.8949999809265137, 3.8959999084472656, 3.8980000019073486, 3.8970000743865967, 3.8949999809265137, 3.8959999084472656, 3.8949999809265137, 3.8959999084472656, 3.8949999809265137, 3.8949999809265137, 3.8959999084472656, 3.8970000743865967, 3.8959999084472656, 3.8970000743865967, 3.8959999084472656, 3.8970000743865967, 3.8970000743865967, 3.8949999809265137, 3.8940000534057617, 3.8970000743865967, 3.8949999809265137, 3.8959999084472656, 3.8949999809265137, 3.8980000019073486, 3.8959999084472656, 3.8970000743865967, 3.8959999084472656, 3.8959999084472656, 3.8959999084472656, 3.8970000743865967, 3.8940000534057617, 3.8949999809265137, 3.8949999809265137, 3.8959999084472656, 3.8959999084472656, 3.8949999809265137, 3.8959999084472656, 3.8970000743865967, 3.8959999084472656, 3.8959999084472656, 3.8959999084472656, 3.8980000019073486, 3.8959999084472656, 3.8949999809265137, 3.8959999084472656, 3.8959999084472656, 3.8959999084472656, 3.8959999084472656, 3.8949999809265137, 3.8959999084472656, 3.8970000743865967, 3.8949999809265137, 3.8959999084472656, 3.8959999084472656, 3.8940000534057617, 3.8959999084472656, 3.8959999084472656, 3.8949999809265137, 3.8959999084472656, 3.8959999084472656, 3.8970000743865967, 3.8959999084472656, 3.8970000743865967, 3.8970000743865967, 3.8959999084472656, 3.8989999294281006, 3.8959999084472656, 3.8959999084472656, 3.8949999809265137, 3.8949999809265137, 3.8970000743865967, 3.8949999809265137, 3.8949999809265137, 3.8970000743865967, 3.8959999084472656, 3.8959999084472656, 3.8959999084472656, 3.8959999084472656, 3.8949999809265137, 3.8959999084472656, 3.8940000534057617, 3.8959999084472656, 3.8959999084472656, 3.8959999084472656, 3.8949999809265137, 3.8929998874664307, 3.8940000534057617, 3.8949999809265137, 3.8949999809265137, 3.8959999084472656, 3.8959999084472656, 3.8949999809265137, 3.8949999809265137, 3.8949999809265137, 3.8949999809265137, 3.8970000743865967, 3.8959999084472656, 3.8970000743865967, 3.8970000743865967, 3.8949999809265137, 3.8959999084472656, 3.9010000228881836, 3.8949999809265137, 3.8949999809265137, 3.8949999809265137, 3.8940000534057617, 3.8959999084472656, 3.8959999084472656, 3.8959999084472656, 3.8970000743865967, 3.8970000743865967, 3.8980000019073486, 3.8970000743865967, 3.8989999294281006, 3.8959999084472656, 3.8959999084472656, 3.8959999084472656, 3.8949999809265137, 3.8940000534057617\
+  ,3.8949999809265137, 3.8970000743865967, 3.8980000019073486, 3.8980000019073486, 3.8959999084472656, 3.8959999084472656, 3.8970000743865967, 3.8949999809265137, 3.8949999809265137, 3.8949999809265137, 3.8949999809265137, 3.8959999084472656, 3.8959999084472656, 3.8949999809265137, 3.8970000743865967, 3.8970000743865967, 3.8959999084472656, 3.8959999084472656, 3.8970000743865967, 3.8949999809265137, 3.8940000534057617, 3.8949999809265137, 3.8940000534057617, 3.8959999084472656, 3.8949999809265137, 3.8949999809265137, 3.8959999084472656, 3.8970000743865967, 3.8949999809265137, 3.8949999809265137, 3.8970000743865967, 3.8940000534057617, 3.8970000743865967, 3.8959999084472656, 3.8959999084472656, 3.8959999084472656, 3.8959999084472656, 3.8940000534057617, 3.8949999809265137, 3.8959999084472656, 3.8949999809265137, 3.8959999084472656, 3.8970000743865967, 3.8940000534057617, 3.8959999084472656, 3.8949999809265137, 3.8949999809265137, 3.8970000743865967, 3.8959999084472656, 3.8949999809265137, 3.8959999084472656, 3.8959999084472656, 3.8949999809265137, 3.8949999809265137, 3.8959999084472656, 3.8949999809265137, 3.8940000534057617, 3.8929998874664307, 3.8949999809265137, 3.8949999809265137, 3.8959999084472656, 3.8959999084472656, 3.8959999084472656, 3.8959999084472656, 3.8949999809265137, 3.8959999084472656, 3.8970000743865967, 3.8949999809265137, 3.8949999809265137, 3.8949999809265137, 3.8949999809265137, 3.8959999084472656, 3.8970000743865967, 3.8940000534057617, 3.8959999084472656, 3.8970000743865967, 3.8959999084472656, 3.8940000534057617, 3.8959999084472656, 3.8949999809265137, 3.8949999809265137, 3.8940000534057617, 3.8940000534057617, 3.8949999809265137, 3.8959999084472656, 3.8949999809265137, 3.8959999084472656, 3.8949999809265137, 3.8959999084472656, 3.8959999084472656, 3.8940000534057617, 3.8929998874664307, 3.8959999084472656, 3.8940000534057617, 3.8949999809265137, 3.8940000534057617, 3.8970000743865967, 3.8959999084472656, 3.8970000743865967, 3.8959999084472656, 3.8949999809265137, 3.8959999084472656, 3.8959999084472656, 3.8940000534057617, 3.8940000534057617, 3.8949999809265137, 3.8949999809265137, 3.8959999084472656, 3.8949999809265137, 3.8949999809265137, 3.8970000743865967, 3.8949999809265137, 3.8959999084472656, 3.8949999809265137, 3.8970000743865967, 3.8949999809265137, 3.8940000534057617, 3.8949999809265137, 3.8949999809265137, 3.8949999809265137, 3.8959999084472656, 3.8940000534057617, 3.8949999809265137, 3.8970000743865967, 3.8949999809265137, 3.8949999809265137, 3.8949999809265137, 3.8929998874664307, 3.8959999084472656, 3.8949999809265137, 3.8940000534057617, 3.8949999809265137, 3.8949999809265137, 3.8959999084472656, 3.8949999809265137, 3.8959999084472656, 3.8959999084472656, 3.8949999809265137, 3.8980000019073486, 3.8949999809265137, 3.8949999809265137, 3.8949999809265137, 3.8940000534057617, 3.8959999084472656, 3.8949999809265137, 3.8949999809265137, 3.8959999084472656, 3.8949999809265137, 3.8949999809265137, 3.8949999809265137, 3.8959999084472656, 3.8949999809265137, 3.8949999809265137, 3.8940000534057617, 3.8949999809265137, 3.8959999084472656, 3.8949999809265137, 3.8940000534057617, 3.8929998874664307, 3.8940000534057617, 3.8949999809265137, 3.8940000534057617, 3.8959999084472656, 3.8959999084472656, 3.8940000534057617, 3.8940000534057617, 3.8949999809265137, 3.8949999809265137, 3.8959999084472656, 3.8949999809265137, 3.8959999084472656, 3.8959999084472656, 3.8940000534057617, 3.8949999809265137, 3.9000000953674316, 3.8940000534057617, 3.8929998874664307, 3.8929998874664307, 3.8929998874664307, 3.8949999809265137, 3.8949999809265137, 3.8949999809265137, 3.8959999084472656, 3.8959999084472656, 3.8959999084472656, 3.8959999084472656, 3.8980000019073486, 3.8949999809265137, 3.8949999809265137, 3.8949999809265137, 3.8940000534057617, 3.8929998874664307\
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+  };
+
+/*
+struct timeval startTime;
+struct timeval endTime; 
+struct timeval costStart; 
+double totalCost = 0;
+
+void cost_start()
+{
+	  totalCost = 0;
+    gettimeofday(&costStart, NULL);
+}
+
+double cost_end(const char* tag)
+{
+    double elapsed;
+    struct timeval costEnd;
+    gettimeofday(&costEnd, NULL);
+    elapsed = ((costEnd.tv_sec*1000000+costEnd.tv_usec)-(costStart.tv_sec*1000000+costStart.tv_usec))/1000000.0;
+    totalCost += elapsed;
+    double use_ms = totalCost*1000;
+    printf(" timecost %s : %.3f ms\n", tag, use_ms);
+    return use_ms; 
+}
+*/
+
+float toFloat(char* buf){
+  return (float)atoll(buf);
+}
+
+//
+//  read float 
+//
+float* read_float(const char* inFile, int* pcount){
+  // check valid
+  if(inFile == NULL || inFile[0] == 0 ){
+    printf(" inFile  is NULL or EMPTY.\n");
+    return NULL;
+  }
+
+  // read in file
+  FILE* pfin =  fopen(inFile, "r");
+  if(pfin == NULL){
+    printf(" open IN file %s error. errno=%d\n", inFile, errno);
+    return false;
+  }
+
+  // read one line from infile and write to outfile
+  char buf[256]={0};
+  int  malloc_cnt = 100000;
+  float* floats = malloc(malloc_cnt*sizeof(float));
+  int  fi = 0;
+  while(fgets(buf, sizeof(buf), pfin) != NULL) {
+    // get item
+    if(buf[0] == 0 || strcmp(buf, " ") == 0)
+        continue;
+    floats[fi] = atof(buf);
+    //printf(" buff=%s float=%.50f \n ", buf, floats[fi]);
+    if ( ++fi == malloc_cnt ) {
+      malloc_cnt += 100000;
+      floats = realloc(floats, malloc_cnt*sizeof(float));
+    }
+    memset(buf, 0, sizeof(buf));
+  }
+
+  // close
+  fclose(pfin);
+  if(pcount)
+    *pcount = fi;
+  return floats;
+}
+
+float check_same(float* ft1, float* ft2, int count){
+  int same_cnt =0;
+  for(int i=0; i< count; i++){
+    
+    if(ft1[i] == ft2[i]){
+       same_cnt ++;
+    }
+
+    if(i < 5){
+      printf(" i=%d ft1=%.40f diff=%.40f \n", i, ft1[i], ft1[i] - ft2[i]);
+      printf(" i=%d ft2=%.40f \n", i, ft2[i]);
+    }
+      
+  }
+  float same_rate = same_cnt*100/count;
+  printf(" all count=%d same=%d same rate=%.0f%% \n", count, same_cnt, same_rate);
+  return same_rate;
+}
+
+double check_same_double(double* ft1, double* ft2, int count){
+  int same_cnt =0;
+  for(int i=0; i< count; i++){
+    
+    if(ft1[i] == ft2[i]){
+       same_cnt ++;
+    }
+
+    if(i < 5){
+      printf(" i=%d ft1=%.40f diff=%.40f \n", i, ft1[i], ft1[i] - ft2[i]);
+      printf(" i=%d ft2=%.40f \n", i, ft2[i]);
+    }
+      
+  }
+  double same_rate = same_cnt*100/count;
+  printf(" all count=%d same=%d same rate=%.0f%% \n", count, same_cnt, same_rate);
+  return same_rate;
+}
+
+//
+// test compress and decompress
+//
+
+bool DoDouble(double* doubles, int cnt, int algorithm) {
+  // compress
+  const char* input = (const char*)doubles;
+  int input_len = cnt * sizeof(double);
+  char* output = (char*) malloc(input_len);
+  int output_len = input_len;
+  char* buff = (char*) malloc(input_len);
+  int buff_len = input_len;
+
+  cost_start();
+  int ret_len = 0;
+  if(algorithm == 2) 
+     ret_len = tsCompressDouble(input, input_len, cnt, output, output_len, algorithm, buff, buff_len);
+  else
+     ret_len = tsCompressDoubleLossy(input, input_len, cnt, output, output_len, algorithm, buff, buff_len);
+
+  if(ret_len == -1) {
+    printf(" compress error.\n");
+    return 0;
+  }
+  double use_ms1 = cost_end("compress");
+
+  printf(" compress len=%d input len=%d\n", ret_len, input_len);
+  double rate=100*(double)ret_len/(double)input_len;
+  printf(" compress rate=%.1f an-rate=%.4f%%\n", (double)input_len/(double)ret_len, rate);
+  
+  //   
+  // decompress
+  //
+  double* ft2 = (double*)malloc(input_len); 
+  cost_start();
+  int code = 0;
+
+  if(algorithm == 2) 
+     code = tsDecompressDouble(output, ret_len, cnt, (char*)ft2, input_len, algorithm, buff, buff_len);
+  else
+     code = tsDecompressDoubleLossy(output, ret_len, cnt, (char*)ft2, input_len, algorithm, buff, buff_len);
+   
+
+  double use_ms2 = cost_end("Decompress");
+  printf(" Decompress return length=%d \n", code);
+
+  // compare same
+  double same_rate = check_same_double(doubles, ft2, cnt);
+
+  printf("\n ------------------  count:%d  <%s> ---------------- \n", cnt, algorithm == 2?"TD":"SZ");
+  printf("    Compress Rate ......... [%.2f%%] \n", rate);
+  double speed1 = (cnt*sizeof(double)*1000/1024/1024)/use_ms1;
+  printf("    Compress Time ......... [%.4fms] speed=%.1f MB/s\n", use_ms1, speed1);
+  double speed2 = (cnt*sizeof(double)*1000/1024/1024)/use_ms2;
+  printf("    Decompress Time........ [%.4fms] speed=%.1f MB/s\n", use_ms2, speed2);
+  printf("    Same Rate ............. [%.0f%%] \n\n", same_rate);
+
+
+  // free
+  free(ft2);
+  free(buff);
+  free(output); 
+
+  return true;
+}
+
+bool DoFloat(float* floats, int cnt, int algorithm, bool lossy) {
+  // compress
+  const char* input = (const char*)floats;
+  int input_len = cnt * sizeof(float);
+  char* output = (char*) malloc(input_len);
+  int output_len = input_len;
+  char* buff = (char*) malloc(input_len);
+  int buff_len = input_len;
+
+  cost_start();
+  int ret_len = 0;
+  ret_len = tsCompressFloat(input, input_len, cnt, output, output_len, algorithm, buff, buff_len);
+ 
+  if(ret_len == -1) {
+    printf(" compress error.\n");
+    return 0;
+  }
+  double use_ms1 = cost_end("compress");
+
+  printf(" compress len=%d input len=%d\n", ret_len, input_len);
+  float rate=100*(float)ret_len/(float)input_len;
+  printf(" compress rate=%.1f an-rate=%.4f%%\n", (float)input_len/(float)ret_len, rate);
+  
+  //   
+  // decompress
+  //
+  float* ft2 = (float*)malloc(input_len); 
+  cost_start();
+  int code = 0;
+  code = tsDecompressFloat(output, ret_len, cnt, (char*)ft2, input_len, algorithm, buff, buff_len);
+  
+  double use_ms2 = cost_end("Decompress");
+  printf(" Decompress return length=%d \n", code);
+
+  // compare same
+  float same_rate = check_same(floats, ft2, cnt);
+
+  printf("\n ------------------  count:%d  <%s> ---------------- \n", cnt, lossy?"SZ":"TD");
+  printf("    Compress Rate ......... [%.2f%%] \n", rate);
+  double speed1 = (cnt*sizeof(float)*1000/1024/1024)/use_ms1;
+  printf("    Compress Time ......... [%.4fms] speed=%.1f MB/s\n", use_ms1, speed1);
+  double speed2 = (cnt*sizeof(float)*1000/1024/1024)/use_ms2;
+  printf("    Decompress Time........ [%.4fms] speed=%.1f MB/s\n", use_ms2, speed2);
+  printf("    Same Rate ............. [%.0f%%] \n\n", same_rate);
+
+
+  // free
+  free(ft2);
+  free(buff);
+  free(output); 
+
+  return true;
+}
+
+
+bool testFile(const char* inFile, char algorithm, bool lossy){
+  // check valid
+  if(inFile == NULL || inFile[0] == 0 ){
+    printf(" inFile is NULL or EMPTY.\n");
+    return false;
+  }
+
+  int cnt = 0;
+  float* floats = read_float(inFile, &cnt);
+  if(floats == NULL) {
+    return false;
+  }
+
+  DoFloat(floats, cnt, algorithm, lossy);
+
+  free(floats);
+  return true;
+}
+//
+//  txt to binary file
+//
+#define BUFF_CNT 256
+bool txt_to_bin(const char* inFile, const char* outFile){
+  // check valid
+  if(inFile == NULL || outFile == NULL || inFile[0] == 0 || outFile[0] == 0){
+    printf(" inFile or outFile is NULL or EMPTY.\n");
+    return false;
+  }
+
+  printf(" infile=%s \n",  inFile);
+  printf(" outfile=%s \n", outFile);
+
+  // read in file
+  FILE* pfin =  fopen(inFile, "r");
+  if(pfin == NULL){
+    printf(" open IN file %s error. errno=%d\n", inFile, errno);
+    return false;
+  }
+
+  // create out file
+  FILE* pfout = fopen(outFile, "w+");
+  if(pfout == NULL){
+    printf(" open OUT file %s error. errno=%d\n", outFile, errno);
+    fclose(pfin);
+    return false;
+  }
+
+  // read one line from infile and write to outfile
+  char buf[256]={0};
+  float fbuf[BUFF_CNT] = {0};
+  int   fi = 0;
+  int   count = 0;
+  while(fgets(buf, sizeof(buf), pfin) != NULL) {
+    // get item
+    fbuf[fi] = toFloat(buf);
+    if ( ++fi == BUFF_CNT ) {
+      // write
+      if(fwrite(fbuf, sizeof(float), BUFF_CNT, pfout) == 0) {
+        printf(" write to file %s error , code=%d . app exit.\n", outFile, errno);
+        exit(1);
+      }
+      fi = 0;
+    }
+    count ++;
+    memset(buf, 0, sizeof(buf));
+  }
+
+  // write retain
+  if( fi > 0){
+    if(fwrite(fbuf, sizeof(float), fi, pfout) == 0) {
+      printf(" write to file %s error , code=%d . app exit.\n", outFile, errno);
+      exit(1);
+    }
+  }
+
+  // close
+  fclose(pfin);
+  fclose(pfout);
+
+  // total
+  printf(" count=%d  write bytes=%d \n", count, (int)(count*sizeof(float)));
+  return true;
+}
+
+
+int memTestDouble() {
+  // douelbe
+  const char* input = (const char*) g_de1;
+  double* de1 = g_de1;
+  int input_len = sizeof(g_de1);
+  int cnt = input_len/sizeof(double);
+  printf(" input input_len=%d count=%d \n", input_len, cnt);
+
+  char* output = (char*) malloc(input_len);
+  int output_len = input_len;
+
+  char buff[1024] ={0};
+  int buff_len = sizeof(buff);
+
+  cost_start();
+  int ret_len = tsCompressDoubleLossy(input, input_len, cnt, output, output_len, ONE_STAGE_COMP, buff, buff_len);
+  if(ret_len == -1) {
+    printf(" compress error.\n");
+    return 0;
+  }
+  cost_end(" tscompress");
+
+  printf(" compress return len=%d input len=%d\n", ret_len, input_len);
+  printf(" compress rate=%.1f an-rate=%.0f%%\n", (float)input_len/(float)ret_len, 100*(float)ret_len/(float)input_len);
+  
+  //   
+  // decompress
+  //
+  double* de2 = (double*)malloc(input_len); 
+  cost_start();
+  int code = tsDecompressDoubleLossy(output, ret_len, cnt, (char*)de2, input_len, ONE_STAGE_COMP, buff, buff_len);
+  cost_end("tsde-compress double");
+  printf(" de-compress return code=%d \n", code);
+
+
+  //
+  // show
+  //
+  int  same_cnt = 0;
+  int  diffshow_cnt = 0;
+  for(int i=0; i< cnt; i++){
+
+    if(i < 10)
+      printf(" i=%d de1=%.20f de2=%.20f  same=%d\n", i, de1[i], de2[i], de1[i] == de2[i]);
+
+    if(de1[i] == de2[i])
+        same_cnt ++;
+    else {
+      notsame_cnt++;
+      if(i >= 10 && ++diffshow_cnt < 50){
+         printf(" i=%d de1=%.20f de2=%.20f  diff\n", i, de1[i], de2[i]);
+      }
+    }
+  }
+   
+  printf(" ---- result doulbe : same =%d cnt=%d  rate:%d%% global not same=%d---- \n", same_cnt, cnt, same_cnt*100/cnt, notsame_cnt);
+   
+  free(output); 
+  free(de2);
+  return 1;
+}
+
+
+
+
+int memTest() {
+  
+  //
+  //float ft1[] = {1.2, 2.4, 3.33, 4.444, 5.555, 6.6666, 7.7777, 8.88888,1.2, 2.4, 3.33, 4.444, 5.555, 6.6666, 7.7777, 8.88888,1.2, 2.4, 3.33, 4.444, 5.555, 6.6666, 7.7777, 8.88888};
+  //
+
+  float* ft1 = g_ft1;
+  const char* input = (const char*) ft1;
+  int input_len = sizeof(g_ft1);
+  int cnt = input_len/sizeof(float);
+  printf(" input input_len=%d count=%d \n", input_len, cnt);
+
+  
+  char* output = (char*) malloc(input_len);
+  int output_len = input_len;
+
+  char buff[1024] ={0};
+  int buff_len = sizeof(buff);
+
+  cost_start();
+  int ret_len = tsCompressFloatLossy(input, input_len, cnt, output, output_len, ONE_STAGE_COMP, buff, buff_len);
+  if(ret_len == -1) {
+    printf(" compress error.\n");
+    return 0;
+  }
+  cost_end(" tscompress");
+
+  printf(" compress return len=%d input len=%d\n", ret_len, input_len);
+  printf(" compress sz rate=%.1f an-rate=%.2f%%\n", (float)input_len/(float)ret_len, 100*(float)ret_len/(float)input_len);
+  
+  //   
+  // decompress
+  //
+  float* ft2 = (float*)malloc(input_len); 
+  cost_start();
+  int code = tsDecompressFloatLossy(output, ret_len, cnt, (char*)ft2, input_len, ONE_STAGE_COMP, buff, buff_len);
+  cost_end("tsde-compress");
+  printf(" de-compress return code=%d \n", code);
+
+
+  //
+  // show
+  //
+  int  same_cnt = 0;
+  int  diffshow_cnt = 0;
+  for(int i=0; i< cnt; i++){
+
+    if(i < 10)
+      printf(" i=%d ft1=%.20f ft2=%.20f  same=%d\n", i, ft1[i], ft2[i], ft1[i] == ft2[i]);
+
+    if(ft1[i] == ft2[i])
+        same_cnt ++;
+    else {
+      notsame_cnt++;
+      if(i >= 10 && ++diffshow_cnt < 50){
+         printf(" i=%d ft1=%.20f ft2=%.20f  diff\n", i, ft1[i], ft2[i]);
+      }
+    }
+  }
+   
+  printf(" ---- result : same =%d cnt=%d  rate:%d%% global not same=%d---- \n", same_cnt, cnt, same_cnt*100/cnt, notsame_cnt);
+   
+  free(output); 
+  free(ft2);
+  return 1;
+}
+
+void* memTestThread(void* lparam) {
+  //memTest();
+  printf(" enter thread ....\n");
+  for(int i=0; i<1; i++)
+  {
+      memTest();
+      printf(" start i=%d .... \n", i);
+  }
+  return NULL;
+}
+
+void test_threadsafe(int thread_count){
+  printf(" test thread safe . thread count=%d \n", thread_count);
+  pthread_t handle[1000000];
+  int i=0;
+  for(i=0; i< thread_count; i++){
+    printf("  create thread %d... \n", i);
+    pthread_attr_t attr;
+    pthread_attr_init(&attr);
+    pthread_create(&handle[i], &attr, memTestThread, NULL);
+    pthread_attr_destroy(&attr);
+  }
+
+  for(i=0; i< thread_count; i++)
+  {
+    pthread_join(handle[i], NULL);
+  }
+  
+  printf(" test thread safe end. not same count=%d\n", notsame_cnt);
+  
+}
+
+
+void* memTestThreadDouble(void* lparam) {
+  //memTest();
+  printf(" enter thread ....\n");
+  for(int i=0; i< 1; i++)
+  {
+      memTest();
+      printf(" double start i=%d .... \n", i);
+  }
+  return NULL;
+}
+
+void test_threadsafe_double(int thread_count){
+  printf(" test thread safe . thread count=%d \n", thread_count);
+  pthread_t handle[1000000];
+  int i=0;
+  for(i=0; i< thread_count; i++){
+    printf("  create thread %d... \n", i);
+    pthread_attr_t attr;
+    pthread_attr_init(&attr);
+    pthread_create(&handle[i], &attr, memTestThreadDouble, NULL);
+    pthread_attr_destroy(&attr);
+  }
+
+  for(i=0; i< thread_count; i++)
+  {
+    pthread_join(handle[i], NULL);
+  }
+  
+  printf("\n  ---- double test thread safe end. not same count=%d-----\n", notsame_cnt);
+  
+}
+
+
+void unitTestFloat() {
+
+  float ft1 [] = {1.11, 2.22, 3.333};
+  int cnt = sizeof(ft1)/sizeof(float);
+  float* floats = ft1;
+  int algorithm = 2;
+
+  // compress
+  const char* input = (const char*)floats;
+  int input_len = cnt * sizeof(float);
+  int output_len = input_len + 1024;
+  char* output = (char*) malloc(output_len);
+  char* buff = (char*) malloc(input_len);
+  int buff_len = input_len;
+
+  printf(" ft1 have count=%d \n", cnt);
+  strcpy(output, "abcde");
+
+  cost_start();
+  int ret_len = 0;
+  ret_len = tsCompressFloatLossy(input, input_len, cnt, output, output_len, algorithm, buff, buff_len);
+
+  if(ret_len == 0) {
+    printf(" compress error.\n");
+    return ;
+  }
+  double use_ms1 = cost_end("compress");
+
+  printf(" compress len=%d input len=%d\n", ret_len, input_len);
+  float rate=100*(float)ret_len/(float)input_len;
+  printf(" compress rate=%.1f an-rate=%.4f%%\n", (float)input_len/(float)ret_len, rate);
+  
+  //   
+  // decompress
+  //
+  float* ft2 = (float*)malloc(input_len); 
+  cost_start();
+  int code = 0;
+  code = tsDecompressFloatLossy(output, ret_len, cnt, (char*)ft2, input_len, algorithm, buff, buff_len);
+   
+
+  double use_ms2 = cost_end("Decompress");
+  printf(" Decompress return length=%d \n", code);
+
+  // compare same
+  float same_rate = check_same(floats, ft2, cnt);
+
+  printf("\n ------------------  count:%d TD <SZ> ---------------- \n", cnt);
+  printf("    Compress Rate ......... [%.0f%%] \n", rate);
+  double speed1 = (cnt*sizeof(float)*1000/1024/1024)/use_ms1;
+  printf("    Compress Time ......... [%.4fms] speed=%.1f MB/s\n", use_ms1, speed1);
+  double speed2 = (cnt*sizeof(float)*1000/1024/1024)/use_ms2;
+  printf("    Decompress Time........ [%.4fms] speed=%.1f MB/s\n", use_ms2, speed2);
+  printf("    Same Rate ............. [%.0f%%] \n\n", same_rate);
+
+
+  // free
+  free(ft2);
+  free(buff);
+  free(output); 
+ 
+}
+
+#define DB_CNT 500
+void test_same_double(int algo){
+  double ori =  3.1415926;
+
+  double doubles [DB_CNT];
+  for(int i=0; i< DB_CNT; i++){
+    doubles[i] = ori;
+  } 
+
+  DoDouble(doubles, DB_CNT, algo);
+
+}
+
+#ifdef TD_TSZ
+extern char lossyColumns [];
+extern bool lossyDouble;
+extern bool lossyFloat;
+extern double  fPrecision;
+extern char Compressor [];
+#endif
+//
+//   -----------------  main ----------------------
+//
+int main(int argc, char *argv[]) {
+  printf("welcome to use taospack tools v1.3\n");
+
+  //printf(" sizeof(int)=%d\n",  (int)sizeof(int));
+  //printf(" sizeof(long)=%d\n", (int)sizeof(long));
+  //printf(" sizeof(short)=%d\n",(int)sizeof(short));
+  
+ 
+  strcpy(lossyColumns, "float|double");
+  bool lossy = true;
+  //fPrecision = 1E-5;
+  //strcpy(Compressor, "GZIP_COMPRESSOR");
+
+  tsCompressInit();
+  lossyFloat = lossyDouble = true;
+
+  printf(" fPrecision=%.15f\n",fPrecision);
+
+ 
+  //
+  //tsCompressExit();
+  //return 1; 
+  //printf(" SZ_SIZE_TYPE=%d", )
+
+  if(argc == 3){
+    char algo = 0;
+    // t
+    if(strcmp(argv[1], "-tone") == 0 || strcmp(argv[1], "-t") == 0 ) {
+        algo = ONE_STAGE_COMP;
+        lossyFloat = lossyDouble = true;
+    }
+    if(strcmp(argv[1], "-tw") == 0) {
+        algo = TWO_STAGE_COMP;
+        lossy = false;
+        lossyFloat = lossyDouble = false;
+    }
+
+    if(strcmp(argv[1], "-sf") == 0) {
+        test_threadsafe(atoi(argv[2]));
+        return 0;
+    }
+
+    if(strcmp(argv[1], "-sd") == 0) {
+        test_threadsafe_double(atoi(argv[2]));
+        return 0;
+    }
+
+   if(strcmp(argv[1], "-samed") == 0) {
+        test_same_double(atoi(argv[2]));
+        return 0;
+    }
+ 
+    if(algo == 0){
+      printf(" no param -tone -tw \n");
+      return 0;
+    }
+     
+    bool ret = testFile(argv[2], algo, lossy);
+    printf(" test file %s. \n", ret ? "ok" : "err");
+    return 1;
+
+  } else if( argc == 2) {
+    if(strcmp(argv[1], "-mem") == 0) {
+      memTest();
+    } 
+  }
+  else{
+    unitTestFloat();
+  }
+
+  tsCompressExit();
+  return 0;
+}
+
+#endif
+

src/mnode/src/mnodeSdb.c

@@ -1113,6 +1113,7 @@ static void *sdbWorkerFp(void *pWorker) {
   void *   unUsed;
 
   taosBlockSIGPIPE();
+  setThreadName("sdbWorker");
 
   while (1) {
     int32_t numOfMsgs = taosReadAllQitemsFromQset(tsSdbWQset, tsSdbWQall, &unUsed);

src/os/inc/osDef.h

@@ -210,6 +210,25 @@ extern "C" {
   #define PRIzu "zu"  
 #endif
 
+
+#if defined(_TD_LINUX_64) || defined(_TD_LINUX_32) || defined(_TD_MIPS_64)  || defined(_TD_ARM_32) || defined(_TD_ARM_64)  || defined(_TD_DARWIN_64)
+  #if defined(_TD_DARWIN_64)
+    // MacOS
+    #if !defined(_GNU_SOURCE)
+      #define setThreadName(name) do { pthread_setname_np((name)); } while (0)
+    #else
+      // pthread_setname_np not defined
+      #define setThreadName(name)
+    #endif
+  #else
+    // Linux, length of name must <= 16 (the last '\0' included)
+    #define setThreadName(name) do { prctl(PR_SET_NAME, (name)); } while (0)
+  #endif
+#else
+  // Windows
+  #define setThreadName(name)
+#endif
+
 #ifdef __cplusplus
 }
 #endif

src/os/inc/osInc.h

@@ -85,6 +85,7 @@ extern "C" {
     #include <sys/eventfd.h>
     #include <sys/resource.h>
     #include <sys/sendfile.h>
+    #include <sys/prctl.h>
 
     #if !(defined(_ALPINE))
       #include <error.h>

src/os/src/darwin/dwSemaphore.c

@@ -41,6 +41,8 @@ static semaphore_t               sem_exit;
 
 static void* sem_thread_routine(void *arg) {
   (void)arg;
+  setThreadName("sem_thrd");
+
   sem_port = mach_task_self();
   kern_return_t ret = semaphore_create(sem_port, &sem_exit, SYNC_POLICY_FIFO, 0);
   if (ret != KERN_SUCCESS) {

src/os/src/darwin/dwTimer.c

@@ -32,6 +32,7 @@ static volatile int  timer_stop = 0;
 
 static void* timer_routine(void *arg) {
   (void)arg;
+  setThreadName("timer");
 
   int r = 0;
   struct timespec to = {0};

src/os/src/detail/osTimer.c

@@ -38,6 +38,8 @@ static void *taosProcessAlarmSignal(void *tharg) {
 
   struct sigevent sevent = {{0}};
 
+  setThreadName("alarmSignal");
+
   #ifdef _ALPINE
     sevent.sigev_notify = SIGEV_THREAD;
     sevent.sigev_value.sival_int = syscall(__NR_gettid);

src/plugins/http/inc/httpParser.h

@@ -100,6 +100,7 @@ typedef enum HTTP_PARSER_STATE {
   HTTP_PARSER_CHUNK,
   HTTP_PARSER_END,
   HTTP_PARSER_ERROR,
+  HTTP_PARSER_OPTIONAL_SP
 } HTTP_PARSER_STATE;
 
 typedef enum HTTP_AUTH_TYPE {

src/plugins/http/src/httpParser.c

@@ -744,6 +744,15 @@ static int32_t httpParserOnSp(HttpParser *parser, HTTP_PARSER_STATE state, const
   return ok;
 }
 
+static int32_t httpParserOnOptionalSp(HttpParser *parser, HTTP_PARSER_STATE state, const char c, int32_t *again) {
+  int32_t ok = 0;
+  if (c != ' ') {
+    *again = 1;
+    httpPopStack(parser);
+  }
+  return ok;
+}
+
 static int32_t httpParserOnStatusCode(HttpParser *parser, HTTP_PARSER_STATE state, const char c, int32_t *again) {
   HttpContext *pContext = parser->pContext;
   int32_t      ok = 0;
@@ -867,7 +876,7 @@ static int32_t httpParserOnHeader(HttpParser *parser, HTTP_PARSER_STATE state, c
       }
       httpPushStack(parser, HTTP_PARSER_CRLF);
       httpPushStack(parser, HTTP_PARSER_HEADER_VAL);
-      httpPushStack(parser, HTTP_PARSER_SP);
+      httpPushStack(parser, HTTP_PARSER_OPTIONAL_SP);
       httpPushStack(parser, HTTP_PARSER_HEADER_KEY);
       break;
     }
@@ -1061,6 +1070,10 @@ static int32_t httpParseChar(HttpParser *parser, const char c, int32_t *again) {
       ok = httpParserOnSp(parser, state, c, again);
       break;
     }
+    if (state == HTTP_PARSER_OPTIONAL_SP) {
+      ok = httpParserOnOptionalSp(parser, state, c, again);
+      break;
+    }
     if (state == HTTP_PARSER_STATUS_CODE) {
       ok = httpParserOnStatusCode(parser, state, c, again);
       break;

src/plugins/http/src/httpQueue.c

@@ -70,6 +70,8 @@ static void *httpProcessResultQueue(void *param) {
   int32_t      type;
   void *       unUsed;
 
+  setThreadName("httpResultQ");
+
   while (1) {
     if (taosReadQitemFromQset(tsHttpQset, &type, (void **)&pMsg, &unUsed) == 0) {
       httpDebug("qset:%p, http queue got no message from qset, exiting", tsHttpQset);

src/plugins/http/src/httpServer.c

@@ -117,6 +117,7 @@ static void httpProcessHttpData(void *param) {
   int32_t      fdNum;
 
   taosSetMaskSIGPIPE();
+  setThreadName("httpData");
 
   while (1) {
     struct epoll_event events[HTTP_MAX_EVENTS];
@@ -208,6 +209,7 @@ static void *httpAcceptHttpConnection(void *arg) {
   int32_t            totalFds = 0;
 
   taosSetMaskSIGPIPE();
+  setThreadName("httpAcceptConn");
 
   pServer->fd = taosOpenTcpServerSocket(pServer->serverIp, pServer->serverPort);
 

src/plugins/monitor/src/monMain.c

@@ -114,6 +114,7 @@ int32_t monStartSystem() {
 
 static void *monThreadFunc(void *param) {
   monDebug("starting to initialize monitor module ...");
+  setThreadName("monThrd");
 
   while (1) {
     static int32_t accessTimes = 0;

src/plugins/mqtt/src/mqttSystem.c

@@ -100,6 +100,8 @@ void mqttPublishCallback(void** unused, struct mqtt_response_publish* published)
 }
 
 void* mqttClientRefresher(void* client) {
+  setThreadName("mqttCliRefresh");
+
   while (tsMqttIsRuning) {
     mqtt_sync((struct mqtt_client*)client);
     taosMsleep(100);

src/rpc/src/rpcTcp.c

@@ -242,6 +242,7 @@ static void *taosAcceptTcpConnection(void *arg) {
 
   pServerObj = (SServerObj *)arg;
   tDebug("%s TCP server is ready, ip:0x%x:%hu", pServerObj->label, pServerObj->ip, pServerObj->port);
+  setThreadName("acceptTcpConn");
 
   while (1) {
     socklen_t addrlen = sizeof(caddr);
@@ -528,6 +529,11 @@ static void *taosProcessTcpData(void *param) {
   SFdObj            *pFdObj;
   struct epoll_event events[maxEvents];
   SRecvInfo          recvInfo;
+  char               name[16];
+
+  memset(name, 0, sizeof(name));
+  snprintf(name, 16, "%s-tcpData", pThreadObj->label);
+  setThreadName(name);
 
   while (1) {
     int fdNum = epoll_wait(pThreadObj->pollFd, events, maxEvents, TAOS_EPOLL_WAIT_TIME);

src/rpc/src/rpcUdp.c

@@ -195,6 +195,8 @@ static void *taosRecvUdpData(void *param) {
   tDebug("%s UDP thread is created, index:%d", pConn->label, pConn->index);
   char *msg = pConn->buffer;
 
+  setThreadName("recvUdpData");
+
   while (1) {
     dataLen = recvfrom(pConn->fd, pConn->buffer, RPC_MAX_UDP_SIZE, 0, (struct sockaddr *)&sourceAdd, &addLen);
     if (dataLen <= 0) {

src/rpc/test/rclient.c

@@ -48,6 +48,8 @@ static void *sendRequest(void *param) {
   SInfo  *pInfo = (SInfo *)param;
   SRpcMsg rpcMsg = {0}; 
 
+  setThreadName("sendCliReq");
+  
   tDebug("thread:%d, start to send request", pInfo->index);
 
   while ( pInfo->numOfReqs == 0 || pInfo->num < pInfo->numOfReqs) {

src/rpc/test/rsclient.c

@@ -41,6 +41,8 @@ static void *sendRequest(void *param) {
   SInfo  *pInfo = (SInfo *)param;
   SRpcMsg rpcMsg, rspMsg;
   
+  setThreadName("sendSrvReq");
+ 
   tDebug("thread:%d, start to send request", pInfo->index);
 
   while ( pInfo->numOfReqs == 0 || pInfo->num < pInfo->numOfReqs) {

src/sync/src/syncRestore.c

@@ -263,6 +263,7 @@ static int32_t syncRestoreDataStepByStep(SSyncPeer *pPeer) {
 }
 
 void *syncRestoreData(void *param) {
+  setThreadName("syncRestoreData");
   int64_t    rid = (int64_t)param;
   SSyncPeer *pPeer = syncAcquirePeer(rid);
   if (pPeer == NULL) {

src/sync/src/syncRetrieve.c

@@ -415,6 +415,7 @@ static int32_t syncRetrieveDataStepByStep(SSyncPeer *pPeer) {
 }
 
 void *syncRetrieveData(void *param) {
+  setThreadName("syncRetrievData");
   int64_t    rid = (int64_t)param;
   SSyncPeer *pPeer = syncAcquirePeer(rid);
   if (pPeer == NULL) {

src/sync/src/syncTcp.c

@@ -195,6 +195,8 @@ static void *syncProcessTcpData(void *param) {
   SConnObj *  pConn = NULL;
   struct epoll_event events[maxEvents];
 
+  setThreadName("syncTcpData");
+
   void *buffer = malloc(pInfo->bufferSize);
   taosBlockSIGPIPE();
 
@@ -257,6 +259,7 @@ static void *syncAcceptPeerTcpConnection(void *argv) {
   SPoolInfo *pInfo = &pPool->info;
 
   taosBlockSIGPIPE();
+  setThreadName("acceptTcpConn");
 
   while (1) {
     struct sockaddr_in clientAddr;

src/sync/test/syncClient.c

@@ -48,6 +48,8 @@ void *sendRequest(void *param) {
   SInfo * pInfo = (SInfo *)param;
   SRpcMsg rpcMsg = {0};
 
+  setThreadName("sendCliReq");
+
   uDebug("thread:%d, start to send request", pInfo->index);
 
   while (pInfo->numOfReqs == 0 || pInfo->num < pInfo->numOfReqs) {

src/sync/test/syncServer.c

@@ -178,6 +178,8 @@ void *processWriteQueue(void *param) {
   int   type;
   void *item;
 
+  setThreadName("writeQ");
+
   while (1) {
     int ret = taosReadQitem(qhandle, &type, &item);
     if (ret <= 0) {

src/tsdb/src/tsdbCommitQueue.c

@@ -158,6 +158,8 @@ static void *tsdbLoopCommit(void *arg) {
   STsdbRepo *   pRepo = NULL;
   TSDB_REQ_T    req;
 
+  setThreadName("tsdbCommit");
+
   while (true) {
     pthread_mutex_lock(&(pQueue->lock));
 

src/tsdb/src/tsdbMeta.c

@@ -787,7 +787,7 @@ static char *getTagIndexKey(const void *pData) {
   void *    res = tdGetKVRowValOfCol(pTable->tagVal, pCol->colId);
   if (res == NULL) {
     // treat the column as NULL if we cannot find it
-    res = getNullValue(pCol->type);
+    res = (char*)getNullValue(pCol->type);
   }
   return res;
 }

src/tsdb/src/tsdbRead.c

@@ -3085,7 +3085,7 @@ int32_t checkForCachedLastRow(STsdbQueryHandle* pQueryHandle, STableGroupInfo *g
   }
 
   // update the tsdb query time range
-  if (pQueryHandle->cachelastrow) {
+  if (pQueryHandle->cachelastrow != TSDB_CACHED_TYPE_NONE) {
     pQueryHandle->window      = TSWINDOW_INITIALIZER;
     pQueryHandle->checkFiles  = false;
     pQueryHandle->activeIndex = -1;  // start from -1
@@ -3117,6 +3117,7 @@ STimeWindow updateLastrowForEachGroup(STableGroupInfo *groupList) {
   STimeWindow window = {INT64_MAX, INT64_MIN};
 
   int32_t totalNumOfTable = 0;
+  SArray* emptyGroup = taosArrayInit(16, sizeof(int32_t));
 
   // NOTE: starts from the buffer in case of descending timestamp order check data blocks
   size_t numOfGroups = taosArrayGetSize(groupList->pGroupList);
@@ -3159,27 +3160,30 @@ STimeWindow updateLastrowForEachGroup(STableGroupInfo *groupList) {
       }
     }
 
-    taosArrayClear(pGroup);
-
     // more than one table in each group, only one table left for each group
     if (keyInfo.pTable != NULL) {
       totalNumOfTable++;
-      taosArrayPush(pGroup, &keyInfo);
+      if (taosArrayGetSize(pGroup) == 1) {
+        // do nothing
       } else {
+        taosArrayClear(pGroup);
+        taosArrayPush(pGroup, &keyInfo);
+      }
+    } else {  // mark all the empty groups, and remove it later
       taosArrayDestroy(pGroup);
-
-      taosArrayRemove(groupList->pGroupList, j);
-      numOfGroups -= 1;
-      j -= 1;
+      taosArrayPush(emptyGroup, &j);
     }
   }
 
   // window does not being updated, so set the original
   if (window.skey == INT64_MAX && window.ekey == INT64_MIN) {
     window = TSWINDOW_INITIALIZER;
-    assert(totalNumOfTable == 0 && taosArrayGetSize(groupList->pGroupList) == 0);
+    assert(totalNumOfTable == 0 && taosArrayGetSize(groupList->pGroupList) == numOfGroups);
   }
 
+  taosArrayRemoveBatch(groupList->pGroupList, TARRAY_GET_START(emptyGroup), (int32_t) taosArrayGetSize(emptyGroup));
+  taosArrayDestroy(emptyGroup);
+
   groupList->numOfTables = totalNumOfTable;
   return window;
 }

src/util/CMakeLists.txt

@@ -4,13 +4,18 @@ PROJECT(TDengine)
 INCLUDE_DIRECTORIES(${TD_COMMUNITY_DIR}/src/rpc/inc)
 INCLUDE_DIRECTORIES(${TD_COMMUNITY_DIR}/src/sync/inc)
 INCLUDE_DIRECTORIES(${TD_COMMUNITY_DIR}/deps/rmonotonic/inc)
+INCLUDE_DIRECTORIES(${TD_COMMUNITY_DIR}/deps/TSZ/sz/include)
+
 AUX_SOURCE_DIRECTORY(src SRC)
 ADD_LIBRARY(tutil ${SRC})
-TARGET_LINK_LIBRARIES(tutil pthread os lz4 z rmonotonic)
+
+TARGET_LINK_LIBRARIES(tutil pthread os lz4 z rmonotonic ${VAR_TSZ} )
+
+
 
 IF (TD_LINUX)
   TARGET_LINK_LIBRARIES(tutil m rt)
-  # ADD_SUBDIRECTORY(tests)
+  ADD_SUBDIRECTORY(tests)
 
   FIND_PATH(ICONV_INCLUDE_EXIST iconv.h /usr/include/ /usr/local/include/)
   IF (ICONV_INCLUDE_EXIST)

src/util/inc/tarray.h

@@ -52,6 +52,22 @@ void* taosArrayInit(size_t size, size_t elemSize);
  */
 void *taosArrayAddBatch(SArray *pArray, const void *pData, int nEles);
 
+/**
+ *
+ * @param pArray
+ * @param pData           position array list
+ * @param numOfElems      the number of removed position
+ */
+void taosArrayRemoveBatch(SArray *pArray, const int32_t* pData, int32_t numOfElems);
+
+/**
+ *
+ * @param pArray
+ * @param comparFn
+ * @param fp
+ */
+void taosArrayRemoveDuplicate(SArray *pArray, __compar_fn_t comparFn, void (*fp)(void*));
+
 /**
  *  add all element from the source array list into the destination
  * @param pArray

src/util/inc/tconfig.h

@@ -20,7 +20,7 @@
 extern "C" {
 #endif
 
-#define TSDB_CFG_MAX_NUM    110
+#define TSDB_CFG_MAX_NUM    116  // 110 + 6 with lossy option
 #define TSDB_CFG_PRINT_LEN  23
 #define TSDB_CFG_OPTION_LEN 24
 #define TSDB_CFG_VALUE_LEN  41
@@ -32,6 +32,9 @@ extern "C" {
 #define TSDB_CFG_CTYPE_B_OPTION    16U  // can be configured by taos_options function
 #define TSDB_CFG_CTYPE_B_NOT_PRINT 32U  // such as password
 
+#define MAX_FLOAT    100000
+#define MIN_FLOAT    0
+
 enum {
   TAOS_CFG_CSTATUS_NONE,     // not configured
   TAOS_CFG_CSTATUS_DEFAULT,  // use system default value
@@ -50,6 +53,7 @@ enum {
   TAOS_CFG_VTYPE_IPSTR,
   TAOS_CFG_VTYPE_DIRECTORY,
   TAOS_CFG_VTYPE_DATA_DIRCTORY,
+  TAOS_CFG_VTYPE_DOUBLE,
 };
 
 enum {

src/util/inc/tscompression.h

@@ -34,6 +34,22 @@ extern "C" {
 #define ONE_STAGE_COMP 1
 #define TWO_STAGE_COMP 2
 
+//
+// compressed data first byte foramt
+//   ------ 7 bit ---- | ---- 1 bit ----
+//        algorithm           mode
+//
+
+// compression data mode save first byte lower 1 bit
+#define MODE_NOCOMPRESS  0  // original data
+#define MODE_COMPRESS    1  // compatible old compress
+
+// compression algorithm save first byte higher 7 bit
+#define ALGO_SZ_LOSSY     1 // SZ compress 
+
+#define HEAD_MODE(x)  x%2
+#define HEAD_ALGO(x)  x/2
+
 extern int tsCompressINTImp(const char *const input, const int nelements, char *const output, const char type);
 extern int tsDecompressINTImp(const char *const input, const int nelements, char *const output, const char type);
 extern int tsCompressBoolImp(const char *const input, const int nelements, char *const output);
@@ -46,6 +62,20 @@ extern int tsCompressDoubleImp(const char *const input, const int nelements, cha
 extern int tsDecompressDoubleImp(const char *const input, const int nelements, char *const output);
 extern int tsCompressFloatImp(const char *const input, const int nelements, char *const output);
 extern int tsDecompressFloatImp(const char *const input, const int nelements, char *const output);
+// lossy
+extern int tsCompressFloatLossyImp(const char * input, const int nelements, char *const output);
+extern int tsDecompressFloatLossyImp(const char * input, int compressedSize, const int nelements, char *const output);
+extern int tsCompressDoubleLossyImp(const char * input, const int nelements, char *const output);
+extern int tsDecompressDoubleLossyImp(const char * input, int compressedSize, const int nelements, char *const output);
+
+#ifdef TD_TSZ
+extern bool lossyFloat;
+extern bool lossyDouble;
+// init call
+int tsCompressInit();
+// exit call
+void tsCompressExit();
+#endif
 
 static FORCE_INLINE int tsCompressTinyint(const char *const input, int inputSize, const int nelements, char *const output, int outputSize, char algorithm,
                       char *const buffer, int bufferSize) {
@@ -189,6 +219,13 @@ static FORCE_INLINE int tsDecompressString(const char *const input, int compress
 
 static FORCE_INLINE int tsCompressFloat(const char *const input, int inputSize, const int nelements, char *const output, int outputSize,
                     char algorithm, char *const buffer, int bufferSize) {
+#ifdef TD_TSZ
+  // lossy mode
+  if(lossyFloat) {
+    return tsCompressFloatLossyImp(input, nelements, output);
+  // lossless mode  
+  } else {
+#endif    
     if (algorithm == ONE_STAGE_COMP) {
       return tsCompressFloatImp(input, nelements, output);
     } else if (algorithm == TWO_STAGE_COMP) {
@@ -198,10 +235,20 @@ static FORCE_INLINE int tsCompressFloat(const char *const input, int inputSize,
       assert(0);
       return -1;
     }    
+#ifdef TD_TSZ  
+  }
+#endif
 }
 
 static FORCE_INLINE int tsDecompressFloat(const char *const input, int compressedSize, const int nelements, char *const output,
                       int outputSize, char algorithm, char *const buffer, int bufferSize) {
+#ifdef TD_TSZ
+  if(HEAD_ALGO(input[0]) == ALGO_SZ_LOSSY){
+    // decompress lossy
+    return tsDecompressFloatLossyImp(input, compressedSize, nelements, output);
+  } else {
+#endif    
+    // decompress lossless
     if (algorithm == ONE_STAGE_COMP) {
       return tsDecompressFloatImp(input, nelements, output);
     } else if (algorithm == TWO_STAGE_COMP) {
@@ -211,10 +258,21 @@ static FORCE_INLINE int tsDecompressFloat(const char *const input, int compresse
       assert(0);
       return -1;
     }
+#ifdef TD_TSZ  
+  }
+#endif
 }
 
+
 static FORCE_INLINE int tsCompressDouble(const char *const input, int inputSize, const int nelements, char *const output, int outputSize,
                      char algorithm, char *const buffer, int bufferSize) {
+#ifdef TD_TSZ  
+  if(lossyDouble){
+    // lossy mode
+    return tsCompressDoubleLossyImp(input, nelements, output);
+  } else {
+#endif    
+    // lossless mode
     if (algorithm == ONE_STAGE_COMP) {
       return tsCompressDoubleImp(input, nelements, output);
     } else if (algorithm == TWO_STAGE_COMP) {
@@ -224,10 +282,20 @@ static FORCE_INLINE int tsCompressDouble(const char *const input, int inputSize,
       assert(0);
       return -1;
     }
+#ifdef TD_TSZ      
+  }
+#endif  
 }
 
 static FORCE_INLINE int tsDecompressDouble(const char *const input, int compressedSize, const int nelements, char *const output,
                        int outputSize, char algorithm, char *const buffer, int bufferSize) {
+  #ifdef TD_TSZ  
+  if(HEAD_ALGO(input[0]) == ALGO_SZ_LOSSY){
+    // decompress lossy
+    return tsDecompressDoubleLossyImp(input, compressedSize, nelements, output);
+  } else {
+  #endif  
+    // decompress lossless
     if (algorithm == ONE_STAGE_COMP) {
       return tsDecompressDoubleImp(input, nelements, output);
     } else if (algorithm == TWO_STAGE_COMP) {
@@ -237,8 +305,37 @@ static FORCE_INLINE int tsDecompressDouble(const char *const input, int compress
       assert(0);
       return -1;
     }
+#ifdef TD_TSZ      
+  }
+#endif  
+}
+
+#ifdef TD_TSZ  
+//
+//  lossy float double
+//
+static FORCE_INLINE int tsCompressFloatLossy(const char *const input, int inputSize, const int nelements, char *const output, int outputSize,
+                    char algorithm, char *const buffer, int bufferSize) {
+  return tsCompressFloatLossyImp(input, nelements, output);
 }
 
+static FORCE_INLINE int tsDecompressFloatLossy(const char *const input, int compressedSize, const int nelements, char *const output,
+                      int outputSize, char algorithm, char *const buffer, int bufferSize){
+  return tsDecompressFloatLossyImp(input, compressedSize, nelements, output);
+}
+
+static FORCE_INLINE int tsCompressDoubleLossy(const char *const input, int inputSize, const int nelements, char *const output, int outputSize,
+                     char algorithm, char *const buffer, int bufferSize){
+  return tsCompressDoubleLossyImp(input, nelements, output);
+}
+
+static FORCE_INLINE int tsDecompressDoubleLossy(const char *const input, int compressedSize, const int nelements, char *const output,
+                       int outputSize, char algorithm, char *const buffer, int bufferSize){
+  return tsDecompressDoubleLossyImp(input, compressedSize, nelements, output);
+}
+
+#endif
+
 static FORCE_INLINE int tsCompressTimestamp(const char *const input, int inputSize, const int nelements, char *const output, int outputSize,
                         char algorithm, char *const buffer, int bufferSize) {
   if (algorithm == ONE_STAGE_COMP) {

src/util/src/tarray.c

@@ -83,6 +83,87 @@ void* taosArrayAddBatch(SArray* pArray, const void* pData, int nEles) {
   return dst;
 }
 
+void taosArrayRemoveBatch(SArray *pArray, const int32_t* pData, int32_t numOfElems) {
+  assert(pArray != NULL && pData != NULL);
+  if (numOfElems <= 0) {
+    return;
+  }
+
+  size_t size = taosArrayGetSize(pArray);
+  if (numOfElems >= size) {
+    taosArrayClear(pArray);
+    return;
+  }
+
+  int32_t i = pData[0] + 1, j = 0;
+  while(i < size) {
+    if (j == numOfElems - 1) {
+      break;
+    }
+
+    char* p = TARRAY_GET_ELEM(pArray, i);
+    if (i > pData[j] && i < pData[j + 1]) {
+      char* dst = TARRAY_GET_ELEM(pArray, i - (j + 1));
+      memmove(dst, p, pArray->elemSize);
+    } else if (i == pData[j + 1]) {
+      j += 1;
+    }
+
+    i += 1;
+  }
+
+  assert(i == pData[numOfElems - 1] + 1);
+
+  int32_t dstIndex = pData[numOfElems - 1] - numOfElems + 1;
+  int32_t srcIndex = pData[numOfElems - 1] + 1;
+
+  char* dst = TARRAY_GET_ELEM(pArray, dstIndex);
+  char* src = TARRAY_GET_ELEM(pArray, srcIndex);
+  memmove(dst, src, pArray->elemSize * (pArray->size - numOfElems));
+
+  pArray->size -= numOfElems;
+}
+
+void taosArrayRemoveDuplicate(SArray *pArray, __compar_fn_t comparFn, void (*fp)(void*)) {
+  assert(pArray);
+
+  size_t size = pArray->size;
+  if (size <= 1) {
+    return;
+  }
+
+  int32_t pos = 0;
+  for(int32_t i = 1; i < size; ++i) {
+    char* p1 = taosArrayGet(pArray, pos);
+    char* p2 = taosArrayGet(pArray, i);
+
+    if (comparFn(p1, p2) == 0) {
+      // do nothing
+    } else {
+      if (pos + 1 != i) {
+        void* p = taosArrayGet(pArray, pos + 1);
+        if (fp != NULL) {
+          fp(p);
+        }
+
+        taosArraySet(pArray, pos + 1, p2);
+        pos += 1;
+      } else {
+        pos += 1;
+      }
+    }
+  }
+
+  if (fp != NULL) {
+    for(int32_t i = pos + 1; i < pArray->size; ++i) {
+      void* p = taosArrayGet(pArray, i);
+      fp(p);
+    }
+  }
+
+  pArray->size = pos + 1;
+}
+
 void* taosArrayAddAll(SArray* pArray, const SArray* pInput) {
   return taosArrayAddBatch(pArray, pInput->pData, (int32_t) taosArrayGetSize(pInput));
 }

src/util/src/tcache.c

@@ -656,6 +656,8 @@ void* taosCacheTimedRefresh(void *handle) {
     return NULL;
   }
 
+  setThreadName("cacheTimedRefre");
+
   const int32_t SLEEP_DURATION = 500; //500 ms
   int64_t totalTick = pCacheObj->refreshTime / SLEEP_DURATION;
 

src/util/src/tcompression.c

@@ -49,9 +49,14 @@
 
 #include "os.h"
 #include "lz4.h"
+#ifdef TD_TSZ  
+  #include "td_sz.h"
+#endif
 #include "taosdef.h"
 #include "tscompression.h"
 #include "tulog.h"
+#include "tglobal.h"
+
 
 static const int TEST_NUMBER = 1;
 #define is_bigendian() ((*(char *)&TEST_NUMBER) == 0)
@@ -61,6 +66,39 @@ static const int TEST_NUMBER = 1;
 #define ZIGZAG_ENCODE(T, v) ((u##T)((v) >> (sizeof(T) * 8 - 1))) ^ (((u##T)(v)) << 1)  // zigzag encode
 #define ZIGZAG_DECODE(T, v) ((v) >> 1) ^ -((T)((v)&1))                                 // zigzag decode
 
+#ifdef TD_TSZ
+bool lossyFloat  = false;
+bool lossyDouble = false;
+
+// init call
+int tsCompressInit(){
+  // config 
+  if(lossyColumns[0] == 0){
+    lossyFloat = false;
+    lossyDouble = false;
+    return 0;
+  }
+
+  lossyFloat  = strstr(lossyColumns, "float") != NULL;
+  lossyDouble = strstr(lossyColumns, "double") != NULL;
+
+  if(lossyFloat == false && lossyDouble == false)
+        return 0;
+  
+  tdszInit(fPrecision, dPrecision, maxIntervals, intervals, Compressor);
+  if(lossyFloat)
+     uInfo("lossy compression float  is opened. ");
+  if(lossyDouble)
+     uInfo("lossy compression double is opened. ");
+  return 1;
+}
+// exit call
+void tsCompressExit(){
+   tdszExit();
+}
+
+#endif
+
 /*
  * Compress Integer (Simple8B).
  */
@@ -410,6 +448,7 @@ int tsCompressStringImp(const char *const input, int inputSize, char *const outp
 
 int tsDecompressStringImp(const char *const input, int compressedSize, char *const output, int outputSize) {
   // compressedSize is the size of data after compression.
+  
   if (input[0] == 1) {
     /* It is compressed by LZ4 algorithm */
     const int decompressed_size = LZ4_decompress_safe(input + 1, output, compressedSize - 1, outputSize);
@@ -886,3 +925,72 @@ int tsDecompressFloatImp(const char *const input, const int nelements, char *con
 
   return nelements * FLOAT_BYTES;
 }
+
+#ifdef TD_TSZ  
+//
+//   ----------  float double lossy  -----------
+//
+int tsCompressFloatLossyImp(const char * input, const int nelements, char *const output){
+  // compress with sz 
+  int compressedSize = tdszCompress(SZ_FLOAT, input, nelements, output + 1);
+  unsigned char algo = ALGO_SZ_LOSSY << 1;
+  if (compressedSize == 0 || compressedSize >= nelements*sizeof(float)){
+    // compressed error or large than original
+    output[0] = MODE_NOCOMPRESS | algo;
+    memcpy(output + 1, input, nelements * sizeof(float));
+    compressedSize = 1 + nelements * sizeof(float);
+  } else {
+    // compressed successfully
+    output[0] = MODE_COMPRESS | algo;
+    compressedSize += 1;
+  }
+
+  return compressedSize;
+}
+
+int tsDecompressFloatLossyImp(const char * input, int compressedSize, const int nelements, char *const output){
+  int decompressedSize  = 0;
+  if( HEAD_MODE(input[0]) == MODE_NOCOMPRESS){
+    // orginal so memcpy directly
+    decompressedSize = nelements * sizeof(float);
+    memcpy(output, input + 1, decompressedSize);
+
+    return decompressedSize;
+  } 
+
+  // decompressed with sz
+  return tdszDecompress(SZ_FLOAT, input + 1, compressedSize - 1, nelements, output);
+}
+
+int tsCompressDoubleLossyImp(const char * input, const int nelements, char *const output){
+   // compress with sz 
+  int compressedSize = tdszCompress(SZ_DOUBLE, input, nelements, output + 1);
+  unsigned char algo = ALGO_SZ_LOSSY << 1;
+  if (compressedSize == 0 || compressedSize >= nelements*sizeof(double)) {
+    // compressed error or large than original
+    output[0] = MODE_NOCOMPRESS | algo;
+    memcpy(output + 1, input, nelements * sizeof(double));
+    compressedSize = 1 + nelements * sizeof(double);
+  } else {
+    // compressed successfully
+    output[0] = MODE_COMPRESS | algo;
+    compressedSize += 1;
+  }
+
+  return compressedSize; 
+}
+
+int tsDecompressDoubleLossyImp(const char * input, int compressedSize, const int nelements, char *const output){
+  int decompressedSize  = 0;
+  if( HEAD_MODE(input[0]) == MODE_NOCOMPRESS){
+    // orginal so memcpy directly
+    decompressedSize = nelements * sizeof(double);
+    memcpy(output, input + 1, decompressedSize);
+
+    return decompressedSize;
+  } 
+
+  // decompressed with sz
+  return tdszDecompress(SZ_DOUBLE, input + 1, compressedSize - 1, nelements, output);
+}
+#endif
\ No newline at end of file

src/util/src/tconfig.c

@@ -61,6 +61,24 @@ static void taosReadFloatConfig(SGlobalCfg *cfg, char *input_value) {
   }
 }
 
+static void taosReadDoubleConfig(SGlobalCfg *cfg, char *input_value) {
+  double  value = atof(input_value);
+  double *option = (double *)cfg->ptr;
+  if (value < cfg->minValue || value > cfg->maxValue) {
+    uError("config option:%s, input value:%s, out of range[%f, %f], use default value:%f",
+           cfg->option, input_value, cfg->minValue, cfg->maxValue, *option);
+  } else {
+    if (cfg->cfgStatus <= TAOS_CFG_CSTATUS_FILE) {
+      *option = value;
+      cfg->cfgStatus = TAOS_CFG_CSTATUS_FILE;
+    } else {
+      uWarn("config option:%s, input value:%s, is configured by %s, use %f", cfg->option, input_value,
+            tsCfgStatusStr[cfg->cfgStatus], *option);
+    }
+  }
+}
+
+
 static void taosReadInt32Config(SGlobalCfg *cfg, char *input_value) {
   int32_t  value = atoi(input_value);
   int32_t *option = (int32_t *)cfg->ptr;
@@ -262,6 +280,9 @@ static void taosReadConfigOption(const char *option, char *value, char *value2,
       case TAOS_CFG_VTYPE_FLOAT:
         taosReadFloatConfig(cfg, value);
         break;
+      case TAOS_CFG_VTYPE_DOUBLE:
+        taosReadDoubleConfig(cfg, value);
+        break;
       case TAOS_CFG_VTYPE_STRING:
         taosReadStringConfig(cfg, value);
         break;

src/util/src/tlog.c

@@ -178,6 +178,8 @@ static void *taosThreadToOpenNewFile(void *param) {
   char keepName[LOG_FILE_NAME_LEN + 20];
   sprintf(keepName, "%s.%d", tsLogObj.logName, tsLogObj.flag);
 
+  setThreadName("openNewFile");
+
   tsLogObj.flag ^= 1;
   tsLogObj.lines = 0;
   char name[LOG_FILE_NAME_LEN + 20];
@@ -688,6 +690,8 @@ static void taosWriteLog(SLogBuff *tLogBuff) {
 static void *taosAsyncOutputLog(void *param) {
   SLogBuff *tLogBuff = (SLogBuff *)param;
 
+  setThreadName("asyncOutputLog");
+  
   while (1) {
     //tsem_wait(&(tLogBuff->buffNotEmpty));
 

src/util/src/tnettest.c

@@ -50,6 +50,8 @@ static void *taosNetBindUdpPort(void *sarg) {
   struct sockaddr_in server_addr;
   struct sockaddr_in clientAddr;
 
+  setThreadName("netBindUdpPort");
+
   if ((serverSocket = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP)) < 0) {
     uError("failed to create UDP socket since %s", strerror(errno));
     return NULL;
@@ -113,6 +115,8 @@ static void *taosNetBindTcpPort(void *sarg) {
   SOCKET     client;
   char       buffer[BUFFER_SIZE];
 
+  setThreadName("netBindTcpPort");
+
   if ((serverSocket = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP)) < 0) {
     uError("failed to create TCP socket since %s", strerror(errno));
     return NULL;

src/util/src/tnote.c

@@ -84,6 +84,8 @@ static void *taosThreadToOpenNewNote(void *param) {
   char      name[NOTE_FILE_NAME_LEN * 2];
   SNoteObj *pNote = (SNoteObj *)param;
 
+  setThreadName("openNewNote");
+
   pNote->flag ^= 1;
   pNote->lines = 0;
   sprintf(name, "%s.%d", pNote->name, pNote->flag);

src/util/src/tsched.c

@@ -122,6 +122,8 @@ void *taosProcessSchedQueue(void *scheduler) {
   SSchedQueue *pSched = (SSchedQueue *)scheduler;
   int ret = 0;
 
+  setThreadName("schedQ");
+
   while (1) {
     if ((ret = tsem_wait(&pSched->fullSem)) != 0) {
       uFatal("wait %s fullSem failed(%s)", pSched->label, strerror(errno));

src/util/src/tskiplist.c

@@ -681,143 +681,3 @@ static SSkipListNode *tSkipListPutImpl(SSkipList *pSkipList, void *pData, SSkipL
 
   return pNode;
 }
-
-// static int32_t tSkipListEndParQuery(SSkipList *pSkipList, SSkipListNode *pStartNode, SSkipListKey *pEndKey,
-//                                    int32_t cond, SSkipListNode ***pRes) {
-//  pthread_rwlock_rdlock(&pSkipList->lock);
-//  SSkipListNode *p = pStartNode;
-//  int32_t        numOfRes = 0;
-//
-//  __compar_fn_t filterComparFn = getComparFunc(pSkipList, pEndKey->nType);
-//  while (p != NULL) {
-//    int32_t ret = filterComparFn(&p->key, pEndKey);
-//    if (ret > 0) {
-//      break;
-//    }
-//
-//    if (ret < 0) {
-//      numOfRes++;
-//      p = p->pForward[0];
-//    } else if (ret == 0) {
-//      if (cond == TSDB_RELATION_LESS_EQUAL) {
-//        numOfRes++;
-//        p = p->pForward[0];
-//      } else {
-//        break;
-//      }
-//    }
-//  }
-//
-//  (*pRes) = (SSkipListNode **)malloc(POINTER_BYTES * numOfRes);
-//  for (int32_t i = 0; i < numOfRes; ++i) {
-//    (*pRes)[i] = pStartNode;
-//    pStartNode = pStartNode->pForward[0];
-//  }
-//  pthread_rwlock_unlock(&pSkipList->lock);
-//
-//  return numOfRes;
-//}
-//
-///*
-// * maybe return the copy of SSkipListNode would be better
-// */
-// int32_t tSkipListGets(SSkipList *pSkipList, SSkipListKey *pKey, SSkipListNode ***pRes) {
-//  (*pRes) = NULL;
-//
-//  SSkipListNode *pNode = tSkipListGet(pSkipList, pKey);
-//  if (pNode == NULL) {
-//    return 0;
-//  }
-//
-//  __compar_fn_t filterComparFn = getComparFunc(pSkipList, pKey->nType);
-//
-//  // backward check if previous nodes are with the same value.
-//  SSkipListNode *pPrev = pNode->pBackward[0];
-//  while ((pPrev != &pSkipList->pHead) && filterComparFn(&pPrev->key, pKey) == 0) {
-//    pPrev = pPrev->pBackward[0];
-//  }
-//
-//  return tSkipListEndParQuery(pSkipList, pPrev->pForward[0], &pNode->key, TSDB_RELATION_LESS_EQUAL, pRes);
-//}
-//
-// static SSkipListNode *tSkipListParQuery(SSkipList *pSkipList, SSkipListKey *pKey, int32_t cond) {
-//  int32_t sLevel = pSkipList->level - 1;
-//  int32_t ret = -1;
-//
-//  SSkipListNode *x = &pSkipList->pHead;
-//  __compar_fn_t  filterComparFn = getComparFunc(pSkipList, pKey->nType);
-//
-//  pthread_rwlock_rdlock(&pSkipList->lock);
-//
-//  if (cond == TSDB_RELATION_GREATER_EQUAL || cond == TSDB_RELATION_GREATER) {
-//    for (int32_t i = sLevel; i >= 0; --i) {
-//      while (x->pForward[i] != NULL && (ret = filterComparFn(&x->pForward[i]->key, pKey)) < 0) {
-//        x = x->pForward[i];
-//      }
-//    }
-//
-//    // backward check if previous nodes are with the same value.
-//    if (cond == TSDB_RELATION_GREATER_EQUAL && ret == 0) {
-//      SSkipListNode *pNode = x->pForward[0];
-//      while ((pNode->pBackward[0] != &pSkipList->pHead) && (filterComparFn(&pNode->pBackward[0]->key, pKey) == 0)) {
-//        pNode = pNode->pBackward[0];
-//      }
-//      pthread_rwlock_unlock(&pSkipList->lock);
-//      return pNode;
-//    }
-//
-//    if (ret > 0 || cond == TSDB_RELATION_GREATER_EQUAL) {
-//      pthread_rwlock_unlock(&pSkipList->lock);
-//      return x->pForward[0];
-//    } else {  // cond == TSDB_RELATION_GREATER && ret == 0
-//      SSkipListNode *pn = x->pForward[0];
-//      while (pn != NULL && filterComparFn(&pn->key, pKey) == 0) {
-//        pn = pn->pForward[0];
-//      }
-//      pthread_rwlock_unlock(&pSkipList->lock);
-//      return pn;
-//    }
-//  }
-//
-//  pthread_rwlock_unlock(&pSkipList->lock);
-//  return NULL;
-//}
-//
-//
-// static bool removeSupport(SSkipList *pSkipList, SSkipListNode **forward, SSkipListKey *pKey) {
-//  __compar_fn_t filterComparFn = getComparFunc(pSkipList, pKey->nType);
-//
-//  if (filterComparFn(&forward[0]->pForward[0]->key, pKey) == 0) {
-//    SSkipListNode *p = forward[0]->pForward[0];
-//    doRemove(pSkipList, p, forward);
-//  } else {  // failed to find the node of specified value,abort
-//    return false;
-//  }
-//
-//  // compress the minimum level of skip list
-//  while (pSkipList->level > 0 && SL_NODE_GET_FORWARD_POINTER(pSkipList->pHead, pSkipList->level - 1) == NULL) {
-//    pSkipList->level -= 1;
-//  }
-//
-//  return true;
-//}
-//
-// bool tSkipListRemove(SSkipList *pSkipList, SSkipListKey *pKey) {
-//  SSkipListNode *forward[MAX_SKIP_LIST_LEVEL] = {0};
-//  __compar_fn_t  filterComparFn = getComparFunc(pSkipList, pKey->nType);
-//
-//  pthread_rwlock_rdlock(&pSkipList->lock);
-//
-//  SSkipListNode *x = &pSkipList->pHead;
-//  for (int32_t i = pSkipList->level - 1; i >= 0; --i) {
-//    while (x->pForward[i] != NULL && (filterComparFn(&x->pForward[i]->key, pKey) < 0)) {
-//      x = x->pForward[i];
-//    }
-//    forward[i] = x;
-//  }
-//
-//  bool ret = removeSupport(pSkipList, forward, pKey);
-//  pthread_rwlock_unlock(&pSkipList->lock);
-//
-//  return ret;
-//}

src/util/tests/arrayTest.cpp

+#include <gtest/gtest.h>
+#include <stdlib.h>
+#include <time.h>
+#include <random>
+
+#include "tarray.h"
+
+namespace {
+
+static void remove_batch_test() {
+  SArray *pa = (SArray*) taosArrayInit(4, sizeof(int32_t));
+
+  for(int32_t i = 0; i < 20; ++i) {
+    int32_t a = i;
+    taosArrayPush(pa, &a);
+  }
+
+  SArray* delList = (SArray*)taosArrayInit(4, sizeof(int32_t));
+  taosArrayRemoveBatch(pa, (const int32_t*) TARRAY_GET_START(delList), taosArrayGetSize(delList));
+  EXPECT_EQ(taosArrayGetSize(pa), 20);
+
+  int32_t a = 5;
+  taosArrayPush(delList, &a);
+
+  taosArrayRemoveBatch(pa, (const int32_t*) TARRAY_GET_START(delList), taosArrayGetSize(delList));
+  EXPECT_EQ(taosArrayGetSize(pa), 19);
+  EXPECT_EQ(*(int*)taosArrayGet(pa, 5), 6);
+
+  taosArrayInsert(pa, 5, &a);
+  EXPECT_EQ(taosArrayGetSize(pa), 20);
+  EXPECT_EQ(*(int*)taosArrayGet(pa, 5), 5);
+
+  taosArrayClear(delList);
+
+  a = 6;
+  taosArrayPush(delList, &a);
+
+  a = 9;
+  taosArrayPush(delList, &a);
+
+  a = 14;
+  taosArrayPush(delList, &a);
+  taosArrayRemoveBatch(pa, (const int32_t*) TARRAY_GET_START(delList), taosArrayGetSize(delList));
+  EXPECT_EQ(taosArrayGetSize(pa), 17);
+}
+}  // namespace
+
+TEST(arrayTest, array_list_test) {
+  remove_batch_test();
+}

src/util/tests/cacheTest.cpp

@@ -5,10 +5,6 @@
 #include "taos.h"
 #include "tcache.h"
 
-namespace {
-int32_t tsMaxMgmtConnections = 10000;
-int32_t tsMaxMeterConnections = 200;
-}
 // test cache
 TEST(testCase, client_cache_test) {
   const int32_t REFRESH_TIME_IN_SEC = 2;
@@ -43,7 +39,7 @@ TEST(testCase, client_cache_test) {
 
   sleep(3);
   char* d = (char*) taosCacheAcquireByKey(tscMetaCache, key3, strlen(key3));
-//    assert(d == NULL);
+  assert(d == NULL);
 
   char key5[] = "test5";
   char data5[] = "data5kkkkk";
@@ -102,7 +98,7 @@ TEST(testCase, cache_resize_test) {
 
   char key[256] = {0};
   char data[1024] = "abcdefghijk";
-  int32_t len = strlen(data);
+//  int32_t len = strlen(data);
 
   uint64_t startTime = taosGetTimestampUs();
   int32_t num = 10000;

src/util/tests/skiplistTest.cpp

 #include <gtest/gtest.h>
 #include <limits.h>
 #include <taosdef.h>
+#include <tcompare.h>
 #include <iostream>
 
 #include "os.h"
@@ -8,12 +9,14 @@
 #include "tskiplist.h"
 #include "tutil.h"
 
+#if 0
 namespace {
 
 char* getkey(const void* data) { return (char*)(data); }
 
 void doubleSkipListTest() {
-  SSkipList* pSkipList = tSkipListCreate(10, TSDB_DATA_TYPE_DOUBLE, sizeof(double), 0, false, true, getkey);
+  SSkipList* pSkipList = tSkipListCreate(10, TSDB_DATA_TYPE_DOUBLE, sizeof(double),
+                                         getKeyComparFunc(TSDB_DATA_TYPE_DOUBLE), false, getkey);
 
   double  doubleVal[1000] = {0};
   int32_t size = 20000;
@@ -25,18 +28,15 @@ void doubleSkipListTest() {
       doubleVal[i] = i * 0.997;
     }
 
-    int32_t level = 0;
-    int32_t size = 0;
-
-    tSkipListNewNodeInfo(pSkipList, &level, &size);
-    auto d = (SSkipListNode*)calloc(1, size + sizeof(double) * 2);
-    d->level = level;
+//    int32_t level = 0;
+    size = 0;
 
-    double* key = (double*)SL_GET_NODE_KEY(pSkipList, d);
-    key[0] = i * 0.997;
-    key[1] = i * 0.997;
+    //    tSkipListNewNodeInfo(pSkipList, &level, &size);
+    //    auto d = (SSkipListNode*)calloc(1, size + sizeof(double) * 2);
+    //    d->level = level;
 
-    tSkipListPut(pSkipList, d);
+    double key = 0.997;
+    tSkipListPut(pSkipList, &key);
   }
 
   printf("the first level of skip list is:\n");
@@ -70,7 +70,8 @@ void doubleSkipListTest() {
 }
 
 void randKeyTest() {
-  SSkipList* pSkipList = tSkipListCreate(10, TSDB_DATA_TYPE_INT, sizeof(int32_t), 0, false, true, getkey);
+  SSkipList* pSkipList = tSkipListCreate(10, TSDB_DATA_TYPE_INT, sizeof(int32_t), getKeyComparFunc(TSDB_DATA_TYPE_INT),
+      false, getkey);
 
   int32_t size = 200000;
   srand(time(NULL));
@@ -375,3 +376,5 @@ TEST(testCase, skiplist_test) {
 
       free(pKeys);*/
 }
+
+#endif
\ No newline at end of file

src/util/tests/trefTest.c

@@ -14,18 +14,18 @@ typedef struct {
   int     refNum;
   int     steps;
   int     rsetId;
-  int64_t rid;
+  int64_t*rid;
   void  **p;
 } SRefSpace;
 
 void iterateRefs(int rsetId) {
   int  count = 0;
 
-  void *p = taosIterateRef(rsetId, NULL);
+  void *p = taosIterateRef(rsetId, 0);
   while (p) {
     // process P
     count++;
-    p = taosIterateRef(rsetId, p);
+    p = taosIterateRef(rsetId, (int64_t) p);
   }    
 
   printf(" %d ", count); 
@@ -34,7 +34,8 @@ void iterateRefs(int rsetId) {
 void *addRef(void *param) {
   SRefSpace *pSpace = (SRefSpace *)param;
   int id;
-  int64_t rid;
+
+  setThreadName("addRef");
 
   for (int i=0; i < pSpace->steps; ++i) {
     printf("a");
@@ -51,8 +52,9 @@ void *addRef(void *param) {
        
 void *removeRef(void *param) {
   SRefSpace *pSpace = (SRefSpace *)param;
-  int id;
-  int64_t rid;
+  int id, code;
+
+  setThreadName("removeRef");
 
   for (int i=0; i < pSpace->steps; ++i) {
     printf("d");
@@ -71,16 +73,17 @@ void *removeRef(void *param) {
 void *acquireRelease(void *param) {
   SRefSpace *pSpace = (SRefSpace *)param;
   int id;
-  int64_t rid;
+
+  setThreadName("acquireRelease");
 
   for (int i=0; i < pSpace->steps; ++i) {
     printf("a");
     
     id = random() % pSpace->refNum; 
-    void *p = taosAcquireRef(pSpace->rsetId, pSpace->p[id]);
+    void *p = taosAcquireRef(pSpace->rsetId, (int64_t) pSpace->p[id]);
     if (p) {
       usleep(id % 5 + 1);
-      taosReleaseRef(pSpace->rsetId, pSpace->p[id]);
+      taosReleaseRef(pSpace->rsetId, (int64_t) pSpace->p[id]);
     }
   }  
 
@@ -94,6 +97,8 @@ void myfree(void *p) {
 void *openRefSpace(void *param) {
   SRefSpace *pSpace = (SRefSpace *)param;
 
+  setThreadName("openRefSpace");
+
   printf("c");
   pSpace->rsetId = taosOpenRef(50, myfree);
 
@@ -103,6 +108,7 @@ void *openRefSpace(void *param) {
   } 
 
   pSpace->p = (void **) calloc(sizeof(void *), pSpace->refNum);
+  pSpace->rid = calloc(pSpace->refNum, sizeof(int64_t));
 
   pthread_attr_t thattr;
   pthread_attr_init(&thattr);

src/vnode/src/vnodeBackup.c

@@ -61,6 +61,8 @@ static void vnodeProcessBackupMsg(SVBackupMsg *pMsg) {
 }
 
 static void *vnodeBackupFunc(void *param) {
+  setThreadName("vnodeBackup");
+
   while (1) {
     SVBackupMsg *pMsg = NULL;
     if (taosReadQitemFromQset(tsVBackupQset, NULL, (void **)&pMsg, NULL) == 0) {

src/vnode/src/vnodeWorker.c

@@ -188,6 +188,8 @@ static void vnodeProcessMWorkerMsg(SVMWorkerMsg *pMsg) {
 }
 
 static void *vnodeMWorkerFunc(void *param) {
+  setThreadName("vnodeMWorker");
+
   while (1) {
     SVMWorkerMsg *pMsg = NULL;
     if (taosReadQitemFromQset(tsVMWorkerQset, NULL, (void **)&pMsg, NULL) == 0) {

src/wal/src/walMgmt.c

@@ -192,6 +192,7 @@ static void walFsyncAll() {
 
 static void *walThreadFunc(void *param) {
   int stop = 0;
+  setThreadName("walThrd");
   while (1) {
     walUpdateSeq();
     walFsyncAll();

tests/perftest-scripts/perftest-query.sh

 #!/bin/bash
 
+branch=
+if [ x$1 != x ];then
+        branch=$1
+        echo "Testing branch: $branch"
+else
+        echo "Please enter branch name as a parameter"
+        exit 1
+fi
+jemalloc=
+if [ x$2 != x ];then
+		jemalloc=jemalloc
+        echo "Building TDengine using jemalloc"
+else
+        echo "Building TDengine using glibc"
+fi
+
 today=`date +"%Y%m%d"`
 WORK_DIR=/home/ubuntu/pxiao
 PERFORMANCE_TEST_REPORT=$WORK_DIR/TDengine/tests/performance-test-report-$today.log
@@ -40,8 +56,8 @@ function buildTDengine {
 
 	git remote update > /dev/null
 	git reset --hard HEAD
-	git checkout master
-	REMOTE_COMMIT=`git rev-parse --short remotes/origin/master`
+	git checkout $branch
+	REMOTE_COMMIT=`git rev-parse --short remotes/origin/$branch`
 	LOCAL_COMMIT=`git rev-parse --short @`
 
 	echo " LOCAL: $LOCAL_COMMIT"
@@ -53,9 +69,20 @@ function buildTDengine {
 		git pull > /dev/null 2>&1
 
 		LOCAL_COMMIT=`git rev-parse --short @`
+		if [ $jemalloc = "jemalloc" ];then
+			echo "git submodule update --init --recursive"
+			git submodule update --init --recursive
+		fi
+		
 		cd debug
 		rm -rf *
+
+		if [ $jemalloc = "jemalloc" ];then
+			echo "cmake .. -DJEMALLOC_ENABLED=true > /dev/null"
+			cmake .. -DJEMALLOC_ENABLED=true > /dev/null
+		else
 			cmake .. > /dev/null
+		fi
 		make && make install > /dev/null		
 	fi
 }
@@ -95,7 +122,8 @@ function sendReport {
 
 	sed -i 's/\x1b\[[0-9;]*m//g' $PERFORMANCE_TEST_REPORT
 	BODY_CONTENT=`cat $PERFORMANCE_TEST_REPORT`
-	echo -e "From: <support@taosdata.com>\nto: ${receiver}\nsubject: Query Performace Report ${today}, commit ID: ${LOCAL_COMMIT}\n\n${today}:\n${BODY_CONTENT}" | \
+	
+	echo -e "From: <support@taosdata.com>\nto: ${receiver}\nsubject: Query Performace Report ${branch} ${jemalloc} ${today}, commit ID: ${LOCAL_COMMIT}\n\n${today}:\n${BODY_CONTENT}" | \
 	(cat - && uuencode $PERFORMANCE_TEST_REPORT performance-test-report-$today.log) | \
 	/usr/sbin/ssmtp "${receiver}" && echo "Report Sent!"
 }

tests/pytest/fulltest.sh

@@ -242,7 +242,7 @@ python3 ./test.py -f query/queryStateWindow.py
 python3 ./test.py -f query/nestedQuery/queryWithOrderLimit.py
 python3 ./test.py -f query/nestquery_last_row.py
 python3 ./test.py -f query/queryCnameDisplay.py
-
+python3 test.py -f query/nestedQuery/queryWithSpread.py
 
 #stream
 python3 ./test.py -f stream/metric_1.py
@@ -362,4 +362,6 @@ python3 test.py -f alter/alter_keep.py
 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
 #======================p4-end===============

tests/pytest/insert/flushwhiledrop.py

+###################################################################
+#           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 threading
+from util.log import *
+from util.cases import *
+from util.sql import *
+from time import sleep
+
+
+class TDTestCase:
+    def init(self, conn, logSql):
+        tdLog.debug("start to execute %s" % __file__)
+        tdSql.init(conn.cursor(), logSql)
+        self.numberOfRecords = 15000
+        self.ts = 1601481600000
+
+    def run(self):
+        tdSql.execute('create database test cache 1 blocks 3')
+        tdSql.execute('use test')
+        tdSql.execute('create table tb(ts timestamp, c1 timestamp, c2 int, c3 bigint, c4 float, c5 double, c6 binary(8), c7 smallint, c8 tinyint, c9 bool, c10 nchar(8))')
+        threads = []
+        t1 = threading.Thread(target=self.insertAndFlush, args=())
+        threads.append(t1)
+        t2 = threading.Thread(target=self.drop, args=())
+        threads.append(t2)
+        for t in threads:
+            t.setDaemon(True)
+            t.start()
+        for t in threads:
+            t.join() 
+
+    def insertAndFlush(self):
+        finish = 0
+        currts = self.ts
+
+        while(finish < self.numberOfRecords):
+            sql = "insert into tb values"
+            for i in range(finish, self.numberOfRecords):
+                sql += "(%d, 1019774612, 29931, 1442173978, 165092.468750, 1128.643179, 'MOCq1pTu', 18405, 82, 0, 'g0A6S0Fu')" % (currts + i)
+                finish = i + 1
+                if (1048576 - len(sql)) < 16384:
+                    break
+            tdSql.execute(sql)
+        
+    def drop(self):
+        sleep(30)
+        tdSql.execute('drop database test')
+
+    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

tests/pytest/query/nestedQuery/queryWithSpread.py

+###################################################################
+#           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
+from util.log import *
+from util.cases import *
+from util.sql import *
+
+
+class TDTestCase:
+    def init(self, conn, logSql):
+        tdLog.debug("start to execute %s" % __file__)
+        tdSql.init(conn.cursor(), logSql)
+
+    def run(self):
+        tdSql.prepare()
+
+        tdSql.execute('create table stb (ts timestamp, speed int) tags(t1 int);')
+
+        for i in range(10):
+            tdSql.execute(f'create table tb_{i} using stb tags({i});')
+            tdSql.execute(f'insert into tb_{i} values(now, 0)')
+            tdSql.execute(f'insert into tb_{i} values(now+10s, {i})')
+
+        tdSql.query('select max(col3) from (select spread(speed) as col3 from stb group by tbname);')
+        tdSql.checkData(0,0,'9.0')
+        tdSql.error('select max(col3) from (select spread(col3) as col3 from stb group by tbname);')
+
+
+    def stop(self):
+        tdSql.close()
+        tdLog.success("%s successfully executed" % __file__)
+
+
+tdCases.addWindows(__file__, TDTestCase())
+tdCases.addLinux(__file__, TDTestCase())

tests/pytest/tools/taosdemoPerformance.py

@@ -122,7 +122,6 @@ class taosdemoPerformace:
         return buildPath
 
     def insertData(self):
-        tdSql.prepare()
 
         buildPath = self.getBuildPath()
         if (buildPath == ""):

tests/robust/makefile

+NAME=robust
+CFLAGS = -O3 -g -Wall -Wno-deprecated -fPIC -Wno-unused-result -Wconversion -Wno-char-subscripts -D_REENTRANT -Wno-format -DLINUX -msse4.2 -Wno-unused-function -D_M_X64 -std=gnu99
+
+all:
+	gcc $(CFLAGS) ./$(NAME).c -o $(NAME) -ltaos -lpthread
+
+clean:
+	rm $(NAME)
\ No newline at end of file

tests/robust/robust.c

+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <taos.h>
+#include <pthread.h>
+#include <sys/time.h>
+#include <unistd.h>
+
+typedef struct {
+  char querySQL[256];
+  int client;
+  int stable;
+  int table;
+  unsigned interval;
+  int insert;
+  int create;
+  int query;
+} ProArgs;
+
+typedef struct {
+  pthread_t pid;
+  int threadId;
+  void* taos;
+} ThreadObj;
+
+static ProArgs arguments;
+void parseArg(int argc, char *argv[]);
+void create();
+void createImp(void *param);
+void start();
+void insertImp(void *param);
+void queryImp(void *param);
+
+int64_t getTimeStampMs() {
+  struct timeval systemTime;
+  gettimeofday(&systemTime, NULL);
+  return (int64_t)systemTime.tv_sec * 1000L + (int64_t)systemTime.tv_usec / 1000;
+}
+
+void parseArg(int argc, char *argv[]) {
+  arguments.stable = 100000;
+  arguments.table = 50;
+  arguments.client = 16;
+  arguments.interval = 1;
+  sprintf(arguments.querySQL, "select count(*) from");
+  for (int i = 1; i < argc; ++i) {
+    if (strcmp(argv[i], "-stable") == 0) {
+      if (i < argc - 1) {
+        arguments.stable = atoi(argv[++i]);
+      } else {
+        fprintf(stderr, "'-stable' requires a parameter, default:%d\n", arguments.stable);
+      }
+    } else if (strcmp(argv[i], "-table") == 0) {
+        if (i < argc - 1) {
+          arguments.table = atoi(argv[++i]);
+        } else {
+          fprintf(stderr, "'-table' requires a parameter, default:%d\n", arguments.table);
+        }
+    } else if (strcmp(argv[i], "-client") == 0) {
+        if (i < argc - 1) {
+          arguments.client = atoi(argv[++i]);
+        } else {
+          fprintf(stderr, "'-client' requires a parameter, default:%d\n", arguments.client);
+        }
+    } else if (strcmp(argv[i], "-sql") == 0) {
+        if (i < argc - 1) {
+          strcpy(arguments.querySQL,argv[++i]);
+        } else {
+          fprintf(stderr, "'-sql' requires a parameter, default:%d\n", arguments.querySQL);
+        }
+    } else if (strcmp(argv[i], "-insert") == 0) {
+      arguments.insert = 1;
+    } else if (strcmp(argv[i], "-create") == 0) {
+      arguments.create = 1;
+    } else if (strcmp(argv[i], "-query") == 0) {
+      arguments.query = 1;
+    }
+  }
+}
+
+void create() {
+  int64_t st = getTimeStampMs();
+  void *taos = taos_connect("127.0.0.1", "root", "taosdata", NULL, 0);
+  if (taos == NULL) {
+    printf("TDengine error: failed to connect\n");
+    exit(EXIT_FAILURE);
+  }
+  TAOS_RES *result = taos_query(taos, "drop database if exists db");
+  if (result == NULL || taos_errno(result) != 0) {
+    printf("In line:%d, failed to execute sql, reason:%s\n", __LINE__, taos_errstr(result));
+    taos_free_result(result);
+    exit(EXIT_FAILURE);
+  }
+  taos_free_result(result);
+  int64_t elapsed = getTimeStampMs() - st;
+  printf("--- spend %ld ms to drop database db\n", elapsed);
+  st = getTimeStampMs();
+  result = taos_query(taos, "create database if not exists db");
+  if (result == NULL || taos_errno(result) != 0) {
+    printf("In line:%d, failed to execute sql, reason:%s\n", __LINE__, taos_errstr(result));
+    taos_free_result(result);
+    exit(EXIT_FAILURE);
+  }
+  taos_free_result(result);
+  elapsed = getTimeStampMs() - st;
+  printf("--- spend %ld ms to create database db\n", elapsed);
+  st = getTimeStampMs();
+  start();
+  printf("--- Spend %ld ms to create %d super tables and each %d tables\n", elapsed, arguments.stable, arguments.table);
+}
+
+void createImp(void *param) {
+  char command[256] = "\0";
+  int sqlLen = 0;
+  int count = 0;
+  char *sql = calloc(1, 1024*1024);
+  ThreadObj *pThread = (ThreadObj *)param;
+  printf("Thread %d start create super table s%d to s%d\n", pThread->threadId, (pThread->threadId - 1) * arguments.stable / arguments.client, pThread->threadId * arguments.stable / arguments.client - 1);
+  for (int i = (pThread->threadId - 1) * arguments.stable / arguments.client; i < pThread->threadId * arguments.stable / arguments.client; i++) {
+    sprintf(command, "create table if not exists db.s%d(ts timestamp, c1 int, c2 int, c3 int) TAGS (id int)", i);
+    TAOS_RES *result = taos_query(pThread->taos, command);
+    if (result == NULL || taos_errno(result) != 0) {
+      printf("In line:%d, failed to execute sql:%s, reason:%s\n", __LINE__, command, taos_errstr(result));
+      taos_free_result(result);
+      return;
+    }
+    taos_free_result(result);
+    result = taos_query(pThread->taos, "use db");
+    if (result == NULL || taos_errno(result) != 0) {
+      printf("In line:%d, failed to execute sql, reason:%s\n", __LINE__, taos_errstr(result));
+      taos_free_result(result);
+      return;
+    }
+    taos_free_result(result);
+    sqlLen = sprintf(sql, "create table if not exists ");
+    count = 0;
+    for (int j = 0; j < arguments.table; j++) {
+      sqlLen += sprintf(sql + sqlLen, " s%d_%d USING s%d TAGS (%d)", i, j, i, j);
+      if ((j + 1) % arguments.table == 0) {
+        result = taos_query(pThread->taos, sql);
+        if (result == NULL || taos_errno(result) != 0) {
+          printf("In line:%d, failed to execute sql, reason:%s\n", __LINE__, taos_errstr(result));
+          taos_free_result(result);
+          return;
+        }
+        taos_free_result(result);
+        printf("Thread %d created table s%d_%d to s%d_%d\n", pThread->threadId, i, count, i, j);
+        count = j;
+        sqlLen = sprintf(sql, "create table if not exists ");
+      }
+    }
+  }
+}
+
+void start() {
+  ThreadObj *threads = calloc((size_t)arguments.client, sizeof(ThreadObj));
+  for (int i = 0; i < arguments.client; i++) {
+    ThreadObj *pthread = threads + i;
+    pthread_attr_t thattr;
+    pthread->threadId = i + 1;
+    pthread->taos = taos_connect("127.0.0.1", "root", "taosdata", NULL, 0);
+    pthread_attr_init(&thattr);
+    pthread_attr_setdetachstate(&thattr, PTHREAD_CREATE_JOINABLE);
+    if (arguments.create) {
+      pthread_create(&pthread->pid, &thattr, (void *(*)(void *))createImp, pthread);
+    } else if (arguments.insert) {
+      pthread_create(&pthread->pid, &thattr, (void *(*)(void *))insertImp, pthread);
+    } else if (arguments.query) {
+      pthread_create(&pthread->pid, &thattr, (void *(*)(void *))queryImp, pthread);
+    }  
+  }
+  for (int i = 0; i < arguments.client; i++) {
+    pthread_join(threads[i].pid, NULL);
+  }
+  free(threads);
+}
+
+void insertImp(void *param) {
+  int count = 0;
+  ThreadObj *pThread = (ThreadObj *)param;
+  printf("Thread %d start insert data\n", pThread->threadId);
+  int sqlLen = 0;
+  char *sql = calloc(1, 1024*1024);
+  TAOS_RES *result = taos_query(pThread->taos, "use db");
+  if (result == NULL || taos_errno(result) != 0) {
+    printf("In line:%d, failed to execute sql, reason:%s\n", __LINE__, taos_errstr(result));
+    taos_free_result(result);
+    return;
+  }
+  taos_free_result(result);
+  int64_t time = getTimeStampMs();
+  while (true) {
+    sqlLen = sprintf(sql, "insert into");
+    for (int i = (pThread->threadId - 1) * arguments.stable / arguments.client; i < pThread->threadId * arguments.stable / arguments.client; i++) {
+      for (int j = 0; j < arguments.table; j++) {
+        sqlLen += sprintf(sql + sqlLen, " s%d_%d values (%ld, %d, %d, %d)", i, j, time, rand(), rand(), rand());
+        count++;
+        if ( (1048576 - sqlLen) < 49151 || i == (pThread->threadId * arguments.stable / arguments.client - 1)) {
+          result = taos_query(pThread->taos, sql);
+          printf("Thread %d already insert %d rows\n", pThread->threadId, count);
+          if (result == NULL || taos_errno(result) != 0) {
+            printf("In line:%d, failed to execute sql, reason:%s\n", __LINE__, taos_errstr(result));
+            taos_free_result(result);
+            return;
+          }
+          taos_free_result(result);
+          sqlLen = sprintf(sql, "insert into");
+        }
+      }
+    }
+    time += 1000*arguments.interval;
+  }
+}
+
+void queryImp(void *param) {
+  ThreadObj *pThread = (ThreadObj *)param;
+  printf("Thread %d start query\n", pThread->threadId);
+  int sqlLen = 0;
+  char *sql = calloc(1, 1024*1024);
+  TAOS_RES *result = taos_query(pThread->taos, "use db");
+  if (result == NULL || taos_errno(result) != 0) {
+    printf("In line:%d, failed to execute sql, reason:%s\n", __LINE__, taos_errstr(result));
+    taos_free_result(result);
+    return;
+  }
+  taos_free_result(result);
+  while (true) {
+    for (int i = (pThread->threadId - 1) * arguments.stable / arguments.client; i < pThread->threadId * arguments.stable / arguments.client; i++) {
+      sqlLen = sprintf(sql, arguments.querySQL);
+      sqlLen += sprintf(sql + sqlLen, " s%d", i);
+      result = taos_query(pThread->taos, sql);
+      if (result == NULL || taos_errno(result) != 0) {
+            printf("In line:%d, failed to execute sql: %s, reason:%s\n", __LINE__, sql, taos_errstr(result));
+            taos_free_result(result);
+            return;
+      }
+      int num_fields = taos_field_count(result);
+      TAOS_FIELD *fields = taos_fetch_fields(result);
+      TAOS_ROW    row = NULL;
+      while ((row = taos_fetch_row(result))) {
+        char  temp[16000] = {0};
+        int len = taos_print_row(temp, row, fields, num_fields);
+        len += sprintf(temp + len, "\n");
+        printf("Thread %d query result: %s\n", pThread->threadId, temp);
+      }
+      taos_free_result(result);
+      sleep(arguments.interval);
+    }
+  }
+  
+}
+
+int main(int argc, char *argv[]) {
+  parseArg(argc, argv);
+  if (arguments.insert || arguments.query || arguments.create) {
+    start();
+  } else {
+    printf("choose one argument: \n1) -create\n2) -insert\n3) -query\n");
+  }
+}
\ No newline at end of file

tests/script/sh/prepare_udf.sh

@@ -5,6 +5,7 @@ echo -n "" > /tmp/empty
 dd if=/dev/zero bs=3584 of=/tmp/big count=1
 
 rm -rf /tmp/sum_double.so /tmp/add_one.so
+touch /tmp/normal
 
 gcc -g -O0 -fPIC -shared sh/sum_double.c -o /tmp/sum_double.so
 gcc -g -O0 -fPIC -shared sh/add_one.c -o /tmp/add_one.so