Merge pull request #6861 from taosdata/feature/td-4647-2

[TD-4647] support auto adding columns through line protocol

src/client/inc/tsclient.h

@@ -412,6 +412,7 @@ int32_t tscSQLSyntaxErrMsg(char* msg, const char* additionalInfo,  const char* s
 
 int32_t tscValidateSqlInfo(SSqlObj *pSql, struct SSqlInfo *pInfo);
 
+int32_t tsSetBlockInfo(SSubmitBlk *pBlocks, const STableMeta *pTableMeta, int32_t numOfRows);
 extern int32_t    sentinel;
 extern SHashObj  *tscVgroupMap;
 extern SHashObj  *tscTableMetaInfo;

src/client/src/TSDBJNIConnector.c

@@ -946,3 +946,34 @@ JNIEXPORT jint JNICALL Java_com_taosdata_jdbc_TSDBJNIConnector_setTableNameTagsI
 
   return JNI_SUCCESS;
 }
+
+JNIEXPORT jlong JNICALL Java_com_taosdata_jdbc_TSDBJNIConnector_insertLinesImp(JNIEnv *env, jobject jobj,
+                                                                                jobjectArray lines, jlong conn) {
+  TAOS *taos = (TAOS *)conn;
+  if (taos == NULL) {
+    jniError("jobj:%p, connection already closed", jobj);
+    return JNI_CONNECTION_NULL;
+  }
+
+  int numLines = (*env)->GetArrayLength(env, lines);
+  char** c_lines = calloc(numLines, sizeof(char*));
+
+  for (int i = 0; i < numLines; ++i) {
+    jstring line = (jstring) ((*env)->GetObjectArrayElement(env, lines, i));
+    c_lines[i] = (char*)(*env)->GetStringUTFChars(env, line, 0);
+  }
+
+  int code = taos_insert_lines(taos, c_lines, numLines);
+
+  for (int i = 0; i < numLines; ++i) {
+    jstring line = (jstring) ((*env)->GetObjectArrayElement(env, lines, i));
+    (*env)->ReleaseStringUTFChars(env, line, c_lines[i]);
+  }
+
+  if (code != TSDB_CODE_SUCCESS) {
+    jniError("jobj:%p, conn:%p, code:%s", jobj, taos, tstrerror(code));
+    return JNI_TDENGINE_ERROR;
+  }
+
+  return code;
+}
\ No newline at end of file

src/client/src/tscParseLineProtocol.c

@@ -17,6 +17,7 @@
 #include "tscLog.h"
 
 #include "taos.h"
+
 typedef struct  {
   char sTableName[TSDB_TABLE_NAME_LEN];
   SHashObj* tagHash;
@@ -33,7 +34,7 @@ typedef struct {
   char* value;
 
   //===================================
-  SSchema* schema;
+  size_t fieldSchemaIdx;
 } TAOS_SML_KV;
 
 typedef struct {
@@ -48,9 +49,17 @@ typedef struct {
   int fieldNum;
 
   //================================
-  SSmlSTableSchema* schema;
+  size_t schemaIdx;
 } TAOS_SML_DATA_POINT;
 
+typedef enum {
+  SML_TIME_STAMP_NOW,
+  SML_TIME_STAMP_SECONDS,
+  SML_TIME_STAMP_MILLI_SECONDS,
+  SML_TIME_STAMP_MICRO_SECONDS,
+  SML_TIME_STAMP_NANO_SECONDS
+} SMLTimeStampType;
+
 //=================================================================================================
 
 int compareSmlColKv(const void* p1, const void* p2) {
@@ -117,10 +126,12 @@ static int32_t getFieldBytesFromSmlKv(TAOS_SML_KV* kv, int32_t* bytes) {
 
 static int32_t buildSmlKvSchema(TAOS_SML_KV* smlKv, SHashObj* hash, SArray* array) {
   SSchema* pField = NULL;
-  SSchema** ppField = taosHashGet(hash, smlKv->key, strlen(smlKv->key));
+  size_t* pFieldIdx = taosHashGet(hash, smlKv->key, strlen(smlKv->key));
+  size_t fieldIdx = -1;
   int32_t code = 0;
-  if (ppField) {
-    pField = *ppField;
+  if (pFieldIdx) {
+    fieldIdx = *pFieldIdx;
+    pField = taosArrayGet(array, fieldIdx);
 
     if (pField->type != smlKv->type) {
       tscError("type mismatch. key %s, type %d. type before %d", smlKv->key, smlKv->type, pField->type);
@@ -149,10 +160,11 @@ static int32_t buildSmlKvSchema(TAOS_SML_KV* smlKv, SHashObj* hash, SArray* arra
     field.bytes = bytes;
 
     pField = taosArrayPush(array, &field);
-    taosHashPut(hash, field.name, tagKeyLen, &pField, POINTER_BYTES);
+    fieldIdx = taosArrayGetSize(array) - 1;
+    taosHashPut(hash, field.name, tagKeyLen, &fieldIdx, sizeof(fieldIdx));
   }
 
-  smlKv->schema = pField;
+  smlKv->fieldSchemaIdx = fieldIdx;
 
   return 0;
 }
@@ -165,10 +177,12 @@ static int32_t buildDataPointSchemas(TAOS_SML_DATA_POINT* points, int numPoint,
   for (int i = 0; i < numPoint; ++i) {
     TAOS_SML_DATA_POINT* point = &points[i];
     size_t stableNameLen = strlen(point->stableName);
-    SSmlSTableSchema** ppStableSchema = taosHashGet(sname2shema, point->stableName, stableNameLen);
+    size_t* pStableIdx = taosHashGet(sname2shema, point->stableName, stableNameLen);
     SSmlSTableSchema* pStableSchema = NULL;
-    if (ppStableSchema) {
-      pStableSchema= *ppStableSchema;
+    size_t stableIdx = -1;
+    if (pStableIdx) {
+      pStableSchema= taosArrayGet(stableSchemas, *pStableIdx);
+      stableIdx = *pStableIdx;
     } else {
       SSmlSTableSchema schema;
       strncpy(schema.sTableName, point->stableName, stableNameLen);
@@ -179,7 +193,8 @@ static int32_t buildDataPointSchemas(TAOS_SML_DATA_POINT* points, int numPoint,
       schema.fieldHash = taosHashInit(64, taosGetDefaultHashFunction(TSDB_DATA_TYPE_BINARY), true, false);
 
       pStableSchema = taosArrayPush(stableSchemas, &schema);
-      taosHashPut(sname2shema, schema.sTableName, stableNameLen, &pStableSchema, POINTER_BYTES);
+      stableIdx = taosArrayGetSize(stableSchemas) - 1;
+      taosHashPut(sname2shema, schema.sTableName, stableNameLen, &stableIdx, sizeof(size_t));
     }
 
     for (int j = 0; j < point->tagNum; ++j) {
@@ -200,7 +215,7 @@ static int32_t buildDataPointSchemas(TAOS_SML_DATA_POINT* points, int numPoint,
       }
     }
 
-    point->schema = pStableSchema;
+    point->schemaIdx = stableIdx;
   }
 
   size_t numStables = taosArrayGetSize(stableSchemas);
@@ -221,11 +236,12 @@ static int32_t buildDataPointSchemas(TAOS_SML_DATA_POINT* points, int numPoint,
   return 0;
 }
 
-static int32_t generateSchemaAction(SSchema* pointColField, SHashObj* dbAttrHash, bool isTag, char sTableName[],
+static int32_t generateSchemaAction(SSchema* pointColField, SHashObj* dbAttrHash, SArray* dbAttrArray, bool isTag, char sTableName[],
                                        SSchemaAction* action, bool* actionNeeded) {
-  SSchema** ppDbAttr = taosHashGet(dbAttrHash, pointColField->name, strlen(pointColField->name));
-  if (ppDbAttr) {
-    SSchema* dbAttr = *ppDbAttr;
+  size_t* pDbIndex = taosHashGet(dbAttrHash, pointColField->name, strlen(pointColField->name));
+  if (pDbIndex) {
+    SSchema* dbAttr = taosArrayGet(dbAttrArray, *pDbIndex);
+    assert(strcasecmp(dbAttr->name, pointColField->name) == 0);
     if (pointColField->type != dbAttr->type) {
       tscError("point type and db type mismatch. key: %s. point type: %d, db type: %d", pointColField->name,
                pointColField->type, dbAttr->type);
@@ -437,8 +453,9 @@ int32_t loadTableMeta(TAOS* taos, char* tableName, SSmlSTableSchema* schema) {
     tstrncpy(field.name, tableMeta->schema[i].name, strlen(tableMeta->schema[i].name)+1);
     field.type = tableMeta->schema[i].type;
     field.bytes = tableMeta->schema[i].bytes;
-    SSchema* pField = taosArrayPush(schema->fields, &field);
-    taosHashPut(schema->fieldHash, field.name, strlen(field.name), &pField, POINTER_BYTES);
+    taosArrayPush(schema->fields, &field);
+    size_t fieldIndex = taosArrayGetSize(schema->fields) - 1;
+    taosHashPut(schema->fieldHash, field.name, strlen(field.name), &fieldIndex, sizeof(fieldIndex));
   }
 
   for (int i=0; i<tableMeta->tableInfo.numOfTags; ++i) {
@@ -447,8 +464,9 @@ int32_t loadTableMeta(TAOS* taos, char* tableName, SSmlSTableSchema* schema) {
     tstrncpy(field.name, tableMeta->schema[j].name, strlen(tableMeta->schema[j].name)+1);
     field.type = tableMeta->schema[j].type;
     field.bytes = tableMeta->schema[j].bytes;
-    SSchema* pField = taosArrayPush(schema->tags, &field);
-    taosHashPut(schema->tagHash, field.name, strlen(field.name), &pField, POINTER_BYTES);
+    taosArrayPush(schema->tags, &field);
+    size_t tagIndex = taosArrayGetSize(schema->tags) - 1;
+    taosHashPut(schema->tagHash, field.name, strlen(field.name), &tagIndex, sizeof(tagIndex));
   }
   tscDebug("load table meta succeed. %s, columns number: %d, tag number: %d, precision: %d",
            tableName, tableMeta->tableInfo.numOfColumns, tableMeta->tableInfo.numOfTags, schema->precision);
@@ -476,6 +494,7 @@ static int32_t reconcileDBSchemas(TAOS* taos, SArray* stableSchemas) {
       code = loadTableMeta(taos, pointSchema->sTableName, &dbSchema);
       if (code != 0) {
         tscError("reconcile point schema failed. can not create %s", pointSchema->sTableName);
+        return code;
       } else {
         pointSchema->precision = dbSchema.precision;
         destroySmlSTableSchema(&dbSchema);
@@ -491,7 +510,7 @@ static int32_t reconcileDBSchemas(TAOS* taos, SArray* stableSchemas) {
         SSchema* pointTag = taosArrayGet(pointSchema->tags, j);
         SSchemaAction schemaAction = {0};
         bool actionNeeded = false;
-        generateSchemaAction(pointTag, dbTagHash, true, pointSchema->sTableName, &schemaAction, &actionNeeded);
+        generateSchemaAction(pointTag, dbTagHash, dbSchema.tags, true, pointSchema->sTableName, &schemaAction, &actionNeeded);
         if (actionNeeded) {
           applySchemaAction(taos, &schemaAction);
         }
@@ -505,7 +524,7 @@ static int32_t reconcileDBSchemas(TAOS* taos, SArray* stableSchemas) {
         SSchema* pointCol = taosArrayGet(pointSchema->fields, j);
         SSchemaAction schemaAction = {0};
         bool actionNeeded = false;
-        generateSchemaAction(pointCol, dbFieldHash, false, pointSchema->sTableName, &schemaAction, &actionNeeded);
+        generateSchemaAction(pointCol, dbFieldHash, dbSchema.fields,false, pointSchema->sTableName, &schemaAction, &actionNeeded);
         if (actionNeeded) {
           applySchemaAction(taos, &schemaAction);
         }
@@ -522,7 +541,8 @@ static int32_t reconcileDBSchemas(TAOS* taos, SArray* stableSchemas) {
   return 0;
 }
 
-static int32_t getChildTableName(TAOS_SML_DATA_POINT* point, char* tableName, int* tableNameLen) {
+static int32_t getSmlMd5ChildTableName(TAOS_SML_DATA_POINT* point, char* tableName, int* tableNameLen) {
+  tscDebug("taos_sml_insert get child table name through md5");
   qsort(point->tags, point->tagNum, sizeof(TAOS_SML_KV), compareSmlColKv);
 
   SStringBuilder sb; memset(&sb, 0, sizeof(sb));
@@ -592,8 +612,12 @@ static int32_t creatChildTableIfNotExists(TAOS* taos, const char* cTableName, co
     return code;
   }
 
-  taos_stmt_close(stmt);
-  return 0;
+  code = taos_stmt_close(stmt);
+  if (code != 0) {
+    tscError("%s", taos_stmt_errstr(stmt));
+    return code;
+  }
+  return code;
 }
 
 static int32_t insertChildTableBatch(TAOS* taos,  char* cTableName, SArray* colsSchema, SArray* rowsBind) {
@@ -619,7 +643,7 @@ static int32_t insertChildTableBatch(TAOS* taos,  char* cTableName, SArray* cols
   int32_t try = 0;
 
   TAOS_STMT* stmt = taos_stmt_init(taos);
-  
+
   code = taos_stmt_prepare(stmt, sql, (unsigned long)strlen(sql));
   if (code != 0) {
     tscError("%s", taos_stmt_errstr(stmt));
@@ -665,23 +689,26 @@ static int32_t insertChildTableBatch(TAOS* taos,  char* cTableName, SArray* cols
   return code;
 }
 
-static int32_t arrangePointsByChildTableName(TAOS_SML_DATA_POINT* points, int numPoints, SHashObj* cname2points) {
+static int32_t arrangePointsByChildTableName(TAOS_SML_DATA_POINT* points, int numPoints,
+                                             SHashObj* cname2points, SArray* stableSchemas) {
   for (int32_t i = 0; i < numPoints; ++i) {
     TAOS_SML_DATA_POINT * point = points + i;
     if (!point->childTableName) {
       char childTableName[TSDB_TABLE_NAME_LEN];
       int32_t tableNameLen = TSDB_TABLE_NAME_LEN;
-      getChildTableName(point, childTableName, &tableNameLen);
+      getSmlMd5ChildTableName(point, childTableName, &tableNameLen);
       point->childTableName = calloc(1, tableNameLen+1);
       strncpy(point->childTableName, childTableName, tableNameLen);
       point->childTableName[tableNameLen] = '\0';
     }
 
+    SSmlSTableSchema* stableSchema = taosArrayGet(stableSchemas, point->schemaIdx);
+
     for (int j = 0; j < point->tagNum; ++j) {
       TAOS_SML_KV* kv =  point->tags + j;
       if (kv->type == TSDB_DATA_TYPE_TIMESTAMP) {
         int64_t ts = *(int64_t*)(kv->value);
-        ts = convertTimePrecision(ts, TSDB_TIME_PRECISION_NANO, point->schema->precision);
+        ts = convertTimePrecision(ts, TSDB_TIME_PRECISION_NANO, stableSchema->precision);
         *(int64_t*)(kv->value) = ts;
       }
     }
@@ -690,7 +717,7 @@ static int32_t arrangePointsByChildTableName(TAOS_SML_DATA_POINT* points, int nu
       TAOS_SML_KV* kv =  point->fields + j;
       if (kv->type == TSDB_DATA_TYPE_TIMESTAMP) {
         int64_t ts = *(int64_t*)(kv->value);
-        ts = convertTimePrecision(ts, TSDB_TIME_PRECISION_NANO, point->schema->precision);
+        ts = convertTimePrecision(ts, TSDB_TIME_PRECISION_NANO, stableSchema->precision);
         *(int64_t*)(kv->value) = ts;
       }
     }
@@ -709,10 +736,12 @@ static int32_t arrangePointsByChildTableName(TAOS_SML_DATA_POINT* points, int nu
   return 0;
 }
 
-static int32_t insertPoints(TAOS* taos, TAOS_SML_DATA_POINT* points, int32_t numPoints) {
+static int32_t insertPoints(TAOS* taos, TAOS_SML_DATA_POINT* points, int32_t numPoints, SArray* stableSchemas) {
+  int32_t code = TSDB_CODE_SUCCESS;
+
   SHashObj* cname2points = taosHashInit(128, taosGetDefaultHashFunction(TSDB_DATA_TYPE_BINARY),
                                         true, false);
-  arrangePointsByChildTableName(points, numPoints, cname2points);
+  arrangePointsByChildTableName(points, numPoints, cname2points, stableSchemas);
 
   int isNullColBind = TSDB_TRUE;
   SArray** pCTablePoints = taosHashIterate(cname2points, NULL);
@@ -720,8 +749,9 @@ static int32_t insertPoints(TAOS* taos, TAOS_SML_DATA_POINT* points, int32_t num
     SArray* cTablePoints = *pCTablePoints;
 
     TAOS_SML_DATA_POINT * point = taosArrayGetP(cTablePoints, 0);
-    size_t numTags = taosArrayGetSize(point->schema->tags);
-    size_t numCols = taosArrayGetSize(point->schema->fields);
+    SSmlSTableSchema* sTableSchema = taosArrayGet(stableSchemas, point->schemaIdx);
+    size_t numTags = taosArrayGetSize(sTableSchema->tags);
+    size_t numCols = taosArrayGetSize(sTableSchema->fields);
 
     SArray* tagBinds = taosArrayInit(numTags, sizeof(TAOS_BIND));
     taosArraySetSize(tagBinds, numTags);
@@ -731,8 +761,7 @@ static int32_t insertPoints(TAOS* taos, TAOS_SML_DATA_POINT* points, int32_t num
     }
     for (int j = 0; j < point->tagNum; ++j) {
       TAOS_SML_KV* kv =  point->tags + j;
-      size_t idx = TARRAY_ELEM_IDX(point->schema->tags, kv->schema);
-      TAOS_BIND* bind = taosArrayGet(tagBinds, idx);
+      TAOS_BIND* bind = taosArrayGet(tagBinds, kv->fieldSchemaIdx);
       bind->buffer_type = kv->type;
       bind->length = malloc(sizeof(uintptr_t*));
       *bind->length = kv->length;
@@ -747,14 +776,17 @@ static int32_t insertPoints(TAOS* taos, TAOS_SML_DATA_POINT* points, int32_t num
       point = taosArrayGetP(cTablePoints, i);
 
       TAOS_BIND* colBinds = calloc(numCols, sizeof(TAOS_BIND));
+      if (colBinds == NULL) {
+        tscError("taos_sml_insert insert points, failed to allocated memory for TAOS_BIND, "
+            "num of rows: %zu, num of cols: %zu", rows, numCols);
+      }
       for (int j = 0; j < numCols; ++j) {
         TAOS_BIND* bind = colBinds + j;
         bind->is_null = &isNullColBind;
       }
       for (int j = 0; j < point->fieldNum; ++j) {
         TAOS_SML_KV* kv = point->fields + j;
-        size_t idx = TARRAY_ELEM_IDX(point->schema->fields, kv->schema);
-        TAOS_BIND* bind = colBinds + idx;
+        TAOS_BIND* bind = colBinds + kv->fieldSchemaIdx;
         bind->buffer_type = kv->type;
         bind->length = malloc(sizeof(uintptr_t*));
         *bind->length = kv->length;
@@ -764,14 +796,21 @@ static int32_t insertPoints(TAOS* taos, TAOS_SML_DATA_POINT* points, int32_t num
       taosArrayPush(rowsBind, &colBinds);
     }
 
-    creatChildTableIfNotExists(taos, point->childTableName, point->stableName, point->schema->tags, tagBinds);
+    code = creatChildTableIfNotExists(taos, point->childTableName, point->stableName, sTableSchema->tags, tagBinds);
+    if (code == 0) {
+      code = insertChildTableBatch(taos, point->childTableName, sTableSchema->fields, rowsBind);
+      if (code != 0) {
+        tscError("insert into child table %s failed. error %s", point->childTableName, tstrerror(code));
+      }
+    } else {
+      tscError("Create Child Table %s failed, error %s", point->childTableName, tstrerror(code));
+    }
+
     for (int i = 0; i < taosArrayGetSize(tagBinds); ++i) {
       TAOS_BIND* bind = taosArrayGet(tagBinds, i);
       free(bind->length);
     }
     taosArrayDestroy(tagBinds);
-
-    insertChildTableBatch(taos, point->childTableName, point->schema->fields, rowsBind);
     for (int i = 0; i < rows; ++i) {
       TAOS_BIND* colBinds = taosArrayGetP(rowsBind, i);
       for (int j = 0; j < numCols; ++j) {
@@ -782,12 +821,14 @@ static int32_t insertPoints(TAOS* taos, TAOS_SML_DATA_POINT* points, int32_t num
     }
     taosArrayDestroy(rowsBind);
     taosArrayDestroy(cTablePoints);
-
+    if (code != 0) {
+      break;
+    }
     pCTablePoints = taosHashIterate(cname2points, pCTablePoints);
   }
 
   taosHashCleanup(cname2points);
-  return 0;
+  return code;
 }
 
 int taos_sml_insert(TAOS* taos, TAOS_SML_DATA_POINT* points, int numPoint) {
@@ -808,7 +849,7 @@ int taos_sml_insert(TAOS* taos, TAOS_SML_DATA_POINT* points, int numPoint) {
     goto clean_up;
   }
 
-  code = insertPoints(taos, points, numPoint);
+  code = insertPoints(taos, points, numPoint, stableSchemas);
   if (code != 0) {
     tscError("error insert points : %s", tstrerror(code));
   }
@@ -825,305 +866,886 @@ clean_up:
 
 //=========================================================================
 
-typedef enum {
-  LP_ITEM_TAG,
-  LP_ITEM_FIELD
-} LPItemKind;
+/*        Field                          Escape charaters
+    1: measurement                        Comma,Space
+    2: tag_key, tag_value, field_key  Comma,Equal Sign,Space
+    3: field_value                    Double quote,Backslash
+*/
+static void escapeSpecialCharacter(uint8_t field, const char **pos) {
+  const char *cur = *pos;
+  if (*cur != '\\') {
+    return;
+  }
+  switch (field) {
+    case 1:
+      switch (*(cur + 1)) {
+        case ',':
+        case ' ':
+          cur++;
+          break;
+        default:
+          break;
+      }
+      break;
+    case 2:
+      switch (*(cur + 1)) {
+        case ',':
+        case ' ':
+        case '=':
+          cur++;
+          break;
+        default:
+          break;
+      }
+      break;
+    case 3:
+      switch (*(cur + 1)) {
+        case '"':
+        case '\\':
+          cur++;
+          break;
+        default:
+          break;
+      }
+      break;
+    default:
+      break;
+  }
+  *pos = cur;
+}
 
-typedef struct  {
-  SStrToken keyToken;
-  SStrToken valueToken;
+static bool isValidInteger(char *str) {
+  char *c = str;
+  if (*c != '+' && *c != '-' && !isdigit(*c)) {
+    return false;
+  }
+  c++;
+  while (*c != '\0') {
+    if (!isdigit(*c)) {
+      return false;
+    }
+    c++;
+  }
+  return true;
+}
 
-  char key[TSDB_COL_NAME_LEN];
-  int8_t type;
-  int16_t length;
+static bool isValidFloat(char *str) {
+  char *c = str;
+  uint8_t has_dot, has_exp, has_sign;
+  has_dot = 0;
+  has_exp = 0;
+  has_sign = 0;
 
-  char* value;
-}SLPItem;
+  if (*c != '+' && *c != '-' && *c != '.' && !isdigit(*c)) {
+    return false;
+  }
+  if (*c == '.' && isdigit(*(c + 1))) {
+    has_dot = 1;
+  }
+  c++;
+  while (*c != '\0') {
+    if (!isdigit(*c)) {
+      switch (*c) {
+        case '.': {
+          if (!has_dot && !has_exp && isdigit(*(c + 1))) {
+            has_dot = 1;
+          } else {
+            return false;
+          }
+          break;
+        }
+        case 'e':
+        case 'E': {
+          if (!has_exp && isdigit(*(c - 1)) &&
+              (isdigit(*(c + 1)) ||
+               *(c + 1) == '+' ||
+               *(c + 1) == '-')) {
+            has_exp = 1;
+          } else {
+            return false;
+          }
+          break;
+        }
+        case '+':
+        case '-': {
+          if (!has_sign && has_exp && isdigit(*(c + 1))) {
+            has_sign = 1;
+          } else {
+            return false;
+          }
+          break;
+        }
+        default: {
+          return false;
+        }
+      }
+    }
+    c++;
+  } //while
+  return true;
+}
 
-typedef struct {
-  SStrToken measToken;
-  SStrToken tsToken;
+static bool isTinyInt(char *pVal, uint16_t len) {
+  if (len <= 2) {
+    return false;
+  }
+  if (!strcmp(&pVal[len - 2], "i8")) {
+    //printf("Type is int8(%s)\n", pVal);
+    return true;
+  }
+  return false;
+}
 
-  char sTableName[TSDB_TABLE_NAME_LEN];
-  SArray* tags;
-  SArray* fields;
-  int64_t ts;
+static bool isTinyUint(char *pVal, uint16_t len) {
+  if (len <= 2) {
+    return false;
+  }
+  if (pVal[0] == '-') {
+    return false;
+  }
+  if (!strcmp(&pVal[len - 2], "u8")) {
+    //printf("Type is uint8(%s)\n", pVal);
+    return true;
+  }
+  return false;
+}
 
-} SLPPoint;
+static bool isSmallInt(char *pVal, uint16_t len) {
+  if (len <= 3) {
+    return false;
+  }
+  if (!strcmp(&pVal[len - 3], "i16")) {
+    //printf("Type is int16(%s)\n", pVal);
+    return true;
+  }
+  return false;
+}
 
-typedef enum {
-  LP_MEASUREMENT,
-  LP_TAG_KEY,
-  LP_TAG_VALUE,
-  LP_FIELD_KEY,
-  LP_FIELD_VALUE
-} LPPart;
+static bool isSmallUint(char *pVal, uint16_t len) {
+  if (len <= 3) {
+    return false;
+  }
+  if (pVal[0] == '-') {
+    return false;
+  }
+  if (strcmp(&pVal[len - 3], "u16") == 0) {
+    //printf("Type is uint16(%s)\n", pVal);
+    return true;
+  }
+  return false;
+}
 
-int32_t scanToCommaOrSpace(SStrToken s, int32_t start, int32_t* index, LPPart part) {
-  for (int32_t i = start; i < s.n; ++i) {
-    if (s.z[i] == ',' || s.z[i] == ' ') {
-      *index = i;
-      return 0;
-    }
+static bool isInt(char *pVal, uint16_t len) {
+  if (len <= 3) {
+    return false;
+  }
+  if (strcmp(&pVal[len - 3], "i32") == 0) {
+    //printf("Type is int32(%s)\n", pVal);
+    return true;
   }
-  return -1;
+  return false;
 }
 
-int32_t scanToEqual(SStrToken s, int32_t start, int32_t* index) {
-  for (int32_t i = start; i < s.n; ++i) {
-    if (s.z[i] == '=') {
-      *index = i;
-      return 0;
-    }
+static bool isUint(char *pVal, uint16_t len) {
+  if (len <= 3) {
+    return false;
+  }
+  if (pVal[0] == '-') {
+    return false;
   }
-  return -1;
+  if (strcmp(&pVal[len - 3], "u32") == 0) {
+    //printf("Type is uint32(%s)\n", pVal);
+    return true;
+  }
+  return false;
 }
 
-int32_t setPointMeasurement(SLPPoint* point, SStrToken token) {
-  point->measToken = token;
-  if (point->measToken.n < TSDB_TABLE_NAME_LEN) {
-    strncpy(point->sTableName, point->measToken.z, point->measToken.n);
-    point->sTableName[point->measToken.n] = '\0';
+static bool isBigInt(char *pVal, uint16_t len) {
+  if (len <= 3) {
+    return false;
   }
-  return 0;
+  if (strcmp(&pVal[len - 3], "i64") == 0) {
+    //printf("Type is int64(%s)\n", pVal);
+    return true;
+  }
+  return false;
 }
 
-int32_t setItemKey(SLPItem* item, SStrToken key, LPPart part) {
-  item->keyToken = key;
-  if (item->keyToken.n < TSDB_COL_NAME_LEN) {
-    strncpy(item->key, item->keyToken.z, item->keyToken.n);
-    item->key[item->keyToken.n] = '\0';
+static bool isBigUint(char *pVal, uint16_t len) {
+  if (len <= 3) {
+    return false;
   }
-  return 0;
+  if (pVal[0] == '-') {
+    return false;
+  }
+  if (strcmp(&pVal[len - 3], "u64") == 0) {
+    //printf("Type is uint64(%s)\n", pVal);
+    return true;
+  }
+  return false;
 }
 
-int32_t setItemValue(SLPItem* item, SStrToken value, LPPart part) {
-  item->valueToken = value;
-  return 0;
+static bool isFloat(char *pVal, uint16_t len) {
+  if (len <= 3) {
+    return false;
+  }
+  if (strcmp(&pVal[len - 3], "f32") == 0) {
+    //printf("Type is float(%s)\n", pVal);
+    return true;
+  }
+  return false;
 }
 
-int32_t parseItemValue(SLPItem* item, LPItemKind kind) {
-  char* sv = item->valueToken.z;
-  char* last = item->valueToken.z + item->valueToken.n - 1;
-
-  if (isdigit(sv[0]) || sv[0] == '-') {
-    if (*last == 'i') {
-      item->type = TSDB_DATA_TYPE_BIGINT;
-      item->length = (int16_t)tDataTypes[item->type].bytes;
-      item->value = malloc(item->length);
-      char* endptr = NULL;
-      *(int64_t*)(item->value) = strtoll(sv, &endptr, 10);
-    } else if (*last == 'u') {
-      item->type = TSDB_DATA_TYPE_UBIGINT;
-      item->length = (int16_t)tDataTypes[item->type].bytes;
-      item->value = malloc(item->length);
-      char* endptr = NULL;
-      *(uint64_t*)(item->value) = (uint64_t)strtoull(sv, &endptr, 10);
-    } else if (*last == 'b') {
-      item->type = TSDB_DATA_TYPE_TINYINT;
-      item->length = (int16_t)tDataTypes[item->type].bytes;
-      item->value = malloc(item->length);
-      char* endptr = NULL;
-      *(int8_t*)(item->value) = (int8_t)strtoll(sv, &endptr, 10);
-    } else if (*last == 's') {
-      item->type = TSDB_DATA_TYPE_SMALLINT;
-      item->length = (int16_t)tDataTypes[item->type].bytes;
-      item->value = malloc(item->length);
-      char* endptr = NULL;
-      *(int16_t*)(item->value) = (int16_t)strtoll(sv, &endptr, 10);
-    } else if (*last == 'w') {
-      item->type = TSDB_DATA_TYPE_INT;
-      item->length = (int16_t)tDataTypes[item->type].bytes;
-      item->value = malloc(item->length);
-      char* endptr = NULL;
-      *(int32_t*)(item->value) = (int32_t)strtoll(sv, &endptr, 10);
-    } else if (*last == 'f') {
-      item->type = TSDB_DATA_TYPE_FLOAT;
-      item->length = (int16_t)tDataTypes[item->type].bytes;
-      item->value = malloc(item->length);
-      char* endptr = NULL;
-      *(float*)(item->value) = (float)strtold(sv, &endptr);
-    } else {
-      item->type = TSDB_DATA_TYPE_DOUBLE;
-      item->length = (int16_t)tDataTypes[item->type].bytes;
-      item->value = malloc(item->length);
-      char* endptr = NULL;
-      *(double*)(item->value) = strtold(sv, &endptr);
-    }
-  } else if ((sv[0] == 'L' && sv[1] =='"') || sv[0] == '"' ) {
-    if (sv[0] == 'L') {
-      item->type = TSDB_DATA_TYPE_NCHAR;
-      uint32_t bytes = item->valueToken.n - 3;
-      item->length = bytes;
-      item->value = malloc(bytes);
-      memcpy(item->value, sv+2, bytes);
-    } else if (sv[0]=='"'){
-      item->type = TSDB_DATA_TYPE_BINARY;
-      uint32_t bytes = item->valueToken.n - 2;
-      item->length = bytes;
-      item->value = malloc(bytes);
-      memcpy(item->value, sv+1, bytes);
-    }
-  } else if (sv[0] == 't' || sv[0] == 'f' || sv[0]=='T' || sv[0] == 'F') {
-    item->type = TSDB_DATA_TYPE_BOOL;
-    item->length = tDataTypes[item->type].bytes;
-    item->value = malloc(tDataTypes[item->type].bytes);
-    *(uint8_t*)(item->value) = tolower(sv[0])=='t' ? TSDB_TRUE : TSDB_FALSE;
+static bool isDouble(char *pVal, uint16_t len) {
+  if (len <= 3) {
+    return false;
   }
-  return 0;
+  if (strcmp(&pVal[len - 3], "f64") == 0) {
+    //printf("Type is double(%s)\n", pVal);
+    return true;
+  }
+  return false;
 }
 
-int32_t compareLPItemKey(const void* p1, const void* p2) {
-  const SLPItem* t1 = p1;
-  const SLPItem* t2 = p2;
-  uint32_t min = (t1->keyToken.n < t2->keyToken.n) ? t1->keyToken.n : t2->keyToken.n;
-  int res = strncmp(t1->keyToken.z, t2->keyToken.z, min);
-  if (res != 0) {
-    return res;
-  } else {
-    return (int)(t1->keyToken.n) - (int)(t2->keyToken.n);
+static bool isBool(char *pVal, uint16_t len, bool *bVal) {
+  if ((len == 1) &&
+      (pVal[len - 1] == 't' ||
+       pVal[len - 1] == 'T')) {
+    //printf("Type is bool(%c)\n", pVal[len - 1]);
+    *bVal = true;
+    return true;
+  }
+
+  if ((len == 1) &&
+      (pVal[len - 1] == 'f' ||
+       pVal[len - 1] == 'F')) {
+    //printf("Type is bool(%c)\n", pVal[len - 1]);
+    *bVal = false;
+    return true;
+  }
+
+  if((len == 4) &&
+     (!strcmp(&pVal[len - 4], "true") ||
+      !strcmp(&pVal[len - 4], "True") ||
+      !strcmp(&pVal[len - 4], "TRUE"))) {
+    //printf("Type is bool(%s)\n", &pVal[len - 4]);
+    *bVal = true;
+    return true;
+  }
+  if((len == 5) &&
+     (!strcmp(&pVal[len - 5], "false") ||
+      !strcmp(&pVal[len - 5], "False") ||
+      !strcmp(&pVal[len - 5], "FALSE"))) {
+    //printf("Type is bool(%s)\n", &pVal[len - 5]);
+    *bVal = false;
+    return true;
   }
+  return false;
 }
 
-int32_t setPointTimeStamp(SLPPoint* point, SStrToken tsToken) {
-  point->tsToken = tsToken;
-  return 0;
+static bool isBinary(char *pVal, uint16_t len) {
+  //binary: "abc"
+  if (len < 2) {
+    return false;
+  }
+  //binary
+  if (pVal[0] == '"' && pVal[len - 1] == '"') {
+    //printf("Type is binary(%s)\n", pVal);
+    return true;
+  }
+  return false;
+}
+
+static bool isNchar(char *pVal, uint16_t len) {
+  //nchar: L"abc"
+  if (len < 3) {
+    return false;
+  }
+  if (pVal[0] == 'L' && pVal[1] == '"' && pVal[len - 1] == '"') {
+    //printf("Type is nchar(%s)\n", pVal);
+    return true;
+  }
+  return false;
+}
+
+static bool isTimeStamp(char *pVal, uint16_t len, SMLTimeStampType *tsType) {
+  if (len == 0) {
+    return true;
+  }
+  if ((len == 1) && pVal[0] == '0') {
+    *tsType = SML_TIME_STAMP_NOW;
+    //printf("Type is timestamp(%s)\n", pVal);
+    return true;
+  }
+  if (len < 2) {
+    return false;
+  }
+  //No appendix use usec as default
+  if (isdigit(pVal[len - 1]) && isdigit(pVal[len - 2])) {
+    *tsType = SML_TIME_STAMP_MICRO_SECONDS;
+    //printf("Type is timestamp(%s)\n", pVal);
+    return true;
+  }
+  if (pVal[len - 1] == 's') {
+    switch (pVal[len - 2]) {
+      case 'm':
+        *tsType = SML_TIME_STAMP_MILLI_SECONDS;
+        break;
+      case 'u':
+        *tsType = SML_TIME_STAMP_MICRO_SECONDS;
+        break;
+      case 'n':
+        *tsType = SML_TIME_STAMP_NANO_SECONDS;
+        break;
+      default:
+        if (isdigit(pVal[len - 2])) {
+          *tsType = SML_TIME_STAMP_SECONDS;
+          break;
+        } else {
+          return false;
+        }
+    }
+    //printf("Type is timestamp(%s)\n", pVal);
+    return true;
+  }
+  return false;
+}
+
+//len does not include '\0' from value.
+static bool convertSmlValueType(TAOS_SML_KV *pVal, char *value,
+                                uint16_t len) {
+  if (len <= 0) {
+    return false;
+  }
+
+  //integer number
+  if (isTinyInt(value, len)) {
+    pVal->type = TSDB_DATA_TYPE_TINYINT;
+    pVal->length = (int16_t)tDataTypes[pVal->type].bytes;
+    value[len - 2] = '\0';
+    if (!isValidInteger(value)) {
+      return false;
+    }
+    pVal->value = calloc(pVal->length, 1);
+    int8_t val = (int8_t)strtoll(value, NULL, 10);
+    memcpy(pVal->value, &val, pVal->length);
+    return true;
+  }
+  if (isTinyUint(value, len)) {
+    pVal->type = TSDB_DATA_TYPE_UTINYINT;
+    pVal->length = (int16_t)tDataTypes[pVal->type].bytes;
+    value[len - 2] = '\0';
+    if (!isValidInteger(value)) {
+      return false;
+    }
+    pVal->value = calloc(pVal->length, 1);
+    uint8_t val = (uint8_t)strtoul(value, NULL, 10);
+    memcpy(pVal->value, &val, pVal->length);
+    return true;
+  }
+  if (isSmallInt(value, len)) {
+    pVal->type = TSDB_DATA_TYPE_SMALLINT;
+    pVal->length = (int16_t)tDataTypes[pVal->type].bytes;
+    value[len - 3] = '\0';
+    if (!isValidInteger(value)) {
+      return false;
+    }
+    pVal->value = calloc(pVal->length, 1);
+    int16_t val = (int16_t)strtoll(value, NULL, 10);
+    memcpy(pVal->value, &val, pVal->length);
+    return true;
+  }
+  if (isSmallUint(value, len)) {
+    pVal->type = TSDB_DATA_TYPE_USMALLINT;
+    pVal->length = (int16_t)tDataTypes[pVal->type].bytes;
+    value[len - 3] = '\0';
+    if (!isValidInteger(value)) {
+      return false;
+    }
+    pVal->value = calloc(pVal->length, 1);
+    uint16_t val = (uint16_t)strtoul(value, NULL, 10);
+    memcpy(pVal->value, &val, pVal->length);
+    //memcpy(pVal->value, &val, pVal->length);
+    return true;
+  }
+  if (isInt(value, len)) {
+    pVal->type = TSDB_DATA_TYPE_INT;
+    pVal->length = (int16_t)tDataTypes[pVal->type].bytes;
+    value[len - 3] = '\0';
+    if (!isValidInteger(value)) {
+      return false;
+    }
+    pVal->value = calloc(pVal->length, 1);
+    int32_t val = (int32_t)strtoll(value, NULL, 10);
+    memcpy(pVal->value, &val, pVal->length);
+    return true;
+  }
+  if (isUint(value, len)) {
+    pVal->type = TSDB_DATA_TYPE_UINT;
+    pVal->length = (int16_t)tDataTypes[pVal->type].bytes;
+    value[len - 3] = '\0';
+    if (!isValidInteger(value)) {
+      return false;
+    }
+    pVal->value = calloc(pVal->length, 1);
+    uint32_t val = (uint32_t)strtoul(value, NULL, 10);
+    memcpy(pVal->value, &val, pVal->length);
+    return true;
+  }
+  if (isBigInt(value, len)) {
+    pVal->type = TSDB_DATA_TYPE_BIGINT;
+    pVal->length = (int16_t)tDataTypes[pVal->type].bytes;
+    value[len - 3] = '\0';
+    if (!isValidInteger(value)) {
+      return false;
+    }
+    pVal->value = calloc(pVal->length, 1);
+    int64_t val = (int64_t)strtoll(value, NULL, 10);
+    memcpy(pVal->value, &val, pVal->length);
+    return true;
+  }
+  if (isBigUint(value, len)) {
+    pVal->type = TSDB_DATA_TYPE_UBIGINT;
+    pVal->length = (int16_t)tDataTypes[pVal->type].bytes;
+    value[len - 3] = '\0';
+    if (!isValidInteger(value)) {
+      return false;
+    }
+    pVal->value = calloc(pVal->length, 1);
+    uint64_t val = (uint64_t)strtoul(value, NULL, 10);
+    memcpy(pVal->value, &val, pVal->length);
+    return true;
+  }
+  //floating number
+  if (isFloat(value, len)) {
+    pVal->type = TSDB_DATA_TYPE_FLOAT;
+    pVal->length = (int16_t)tDataTypes[pVal->type].bytes;
+    value[len - 3] = '\0';
+    if (!isValidFloat(value)) {
+      return false;
+    }
+    pVal->value = calloc(pVal->length, 1);
+    float val = (float)strtold(value, NULL);
+    memcpy(pVal->value, &val, pVal->length);
+    return true;
+  }
+  if (isDouble(value, len)) {
+    pVal->type = TSDB_DATA_TYPE_DOUBLE;
+    pVal->length = (int16_t)tDataTypes[pVal->type].bytes;
+    value[len - 3] = '\0';
+    if (!isValidFloat(value)) {
+      return false;
+    }
+    pVal->value = calloc(pVal->length, 1);
+    double val = (double)strtold(value, NULL);
+    memcpy(pVal->value, &val, pVal->length);
+    return true;
+  }
+  //binary
+  if (isBinary(value, len)) {
+    pVal->type = TSDB_DATA_TYPE_BINARY;
+    pVal->length = len - 2;
+    pVal->value = calloc(pVal->length, 1);
+    //copy after "
+    memcpy(pVal->value, value + 1, pVal->length);
+    return true;
+  }
+  //nchar
+  if (isNchar(value, len)) {
+    pVal->type = TSDB_DATA_TYPE_NCHAR;
+    pVal->length = len - 3;
+    pVal->value = calloc(pVal->length, 1);
+    //copy after L"
+    memcpy(pVal->value, value + 2, pVal->length);
+    return true;
+  }
+  //bool
+  bool bVal;
+  if (isBool(value, len, &bVal)) {
+    pVal->type = TSDB_DATA_TYPE_BOOL;
+    pVal->length = (int16_t)tDataTypes[pVal->type].bytes;
+    pVal->value = calloc(pVal->length, 1);
+    memcpy(pVal->value, &bVal, pVal->length);
+    return true;
+  }
+  //Handle default(no appendix) as float
+  if (isValidInteger(value) || isValidFloat(value)) {
+    pVal->type = TSDB_DATA_TYPE_FLOAT;
+    pVal->length = (int16_t)tDataTypes[pVal->type].bytes;
+    pVal->value = calloc(pVal->length, 1);
+    float val = (float)strtold(value, NULL);
+    memcpy(pVal->value, &val, pVal->length);
+    return true;
+  }
+  return false;
 }
 
-int32_t parsePointTime(SLPPoint* point) {
-  if (point->tsToken.n <= 0) {
-    point->ts = taosGetTimestampNs();
+static int32_t getTimeStampValue(char *value, uint16_t len,
+                                 SMLTimeStampType type, int64_t *ts) {
+
+  if (len >= 2) {
+    for (int i = 0; i < len - 2; ++i) {
+      if(!isdigit(value[i])) {
+        return TSDB_CODE_TSC_LINE_SYNTAX_ERROR;
+      }
+    }
+  }
+  //No appendix or no timestamp given (len = 0)
+  if (len >= 1 && isdigit(value[len - 1]) && type != SML_TIME_STAMP_NOW) {
+    type = SML_TIME_STAMP_MICRO_SECONDS;
+  }
+  if (len != 0) {
+    *ts = (int64_t)strtoll(value, NULL, 10);
   } else {
-    char* endptr = NULL;
-    point->ts = strtoll(point->tsToken.z, &endptr, 10);
-    char* last = point->tsToken.z + point->tsToken.n - 1;
-    if (*last == 's') {
-      point->ts *= (int64_t)1e9;
-    } else if (*last == 'a') {
-      point->ts *= (int64_t)1e6;
-    } else if (*last == 'u') {
-      point->ts *= (int64_t)1e3;
-    } else if (*last == 'b') {
-      point->ts *= 1;
+    type = SML_TIME_STAMP_NOW;
+  }
+  switch (type) {
+    case SML_TIME_STAMP_NOW: {
+      *ts = taosGetTimestampNs();
+      break;
+    }
+    case SML_TIME_STAMP_SECONDS: {
+      *ts = (int64_t)(*ts * 1e9);
+      break;
+    }
+    case SML_TIME_STAMP_MILLI_SECONDS: {
+      *ts = convertTimePrecision(*ts, TSDB_TIME_PRECISION_MILLI, TSDB_TIME_PRECISION_NANO);
+      break;
+    }
+    case SML_TIME_STAMP_MICRO_SECONDS: {
+      *ts = convertTimePrecision(*ts, TSDB_TIME_PRECISION_MICRO, TSDB_TIME_PRECISION_NANO);
+      break;
+    }
+    case SML_TIME_STAMP_NANO_SECONDS: {
+      *ts = *ts * 1;
+      break;
+    }
+    default: {
+      return TSDB_CODE_TSC_LINE_SYNTAX_ERROR;
     }
   }
-  return 0;
+  return TSDB_CODE_SUCCESS;
 }
 
-int32_t tscParseLine(SStrToken line, SLPPoint* point) {
-  int32_t pos = 0;
+static int32_t convertSmlTimeStamp(TAOS_SML_KV *pVal, char *value,
+                                   uint16_t len) {
+  int32_t ret;
+  SMLTimeStampType type;
+  int64_t tsVal;
 
-  int32_t start = 0;
-  int32_t err = scanToCommaOrSpace(line, start, &pos, LP_MEASUREMENT);
-  if (err != 0) {
-    tscError("a");
-    return err;
+  if (!isTimeStamp(value, len, &type)) {
+    return TSDB_CODE_TSC_LINE_SYNTAX_ERROR;
   }
 
-  SStrToken measurement = {.z = line.z+start, .n = pos-start};
-  setPointMeasurement(point, measurement);
-  point->tags = taosArrayInit(64, sizeof(SLPItem));
-  start = pos;
-  while (line.z[start] == ',') {
-    SLPItem item;
+  ret = getTimeStampValue(value, len, type, &tsVal);
+  if (ret) {
+    return ret;
+  }
+  tscDebug("Timestamp after conversion:%"PRId64, tsVal);
 
-    start++;
-    err = scanToEqual(line, start, &pos);
-    if (err != 0) {
-      tscError("b");
-      goto error;
+  pVal->type = TSDB_DATA_TYPE_TIMESTAMP;
+  pVal->length = (int16_t)tDataTypes[pVal->type].bytes;
+  pVal->value = calloc(pVal->length, 1);
+  memcpy(pVal->value, &tsVal, pVal->length);
+  return TSDB_CODE_SUCCESS;
+}
+
+static int32_t parseSmlTimeStamp(TAOS_SML_KV **pTS, const char **index) {
+  const char *start, *cur;
+  int32_t ret = TSDB_CODE_SUCCESS;
+  int len = 0;
+  char key[] = "_ts";
+  char *value = NULL;
+
+  start = cur = *index;
+  *pTS = calloc(1, sizeof(TAOS_SML_KV));
+
+  while(*cur != '\0') {
+    cur++;
+    len++;
+  }
+
+  if (len > 0) {
+    value = calloc(len + 1, 1);
+    memcpy(value, start, len);
+  }
+
+  ret = convertSmlTimeStamp(*pTS, value, len);
+  if (ret) {
+    free(value);
+    free(*pTS);
+    return ret;
+  }
+  free(value);
+
+  (*pTS)->key = calloc(sizeof(key), 1);
+  memcpy((*pTS)->key, key, sizeof(key));
+  return ret;
+}
+
+static int32_t parseSmlKey(TAOS_SML_KV *pKV, const char **index) {
+  const char *cur = *index;
+  char key[TSDB_COL_NAME_LEN];
+  uint16_t len = 0;
+
+  //key field cannot start with digit
+  if (isdigit(*cur)) {
+    tscError("Tag key cannnot start with digit\n");
+    return TSDB_CODE_TSC_LINE_SYNTAX_ERROR;
+  }
+  while (*cur != '\0') {
+    if (len > TSDB_COL_NAME_LEN) {
+      tscDebug("Key field cannot exceeds 65 characters");
+      return TSDB_CODE_TSC_LINE_SYNTAX_ERROR;
+    }
+    //unescaped '=' identifies a tag key
+    if (*cur == '=' && *(cur - 1) != '\\') {
+      break;
+    }
+    //Escape special character
+    if (*cur == '\\') {
+      escapeSpecialCharacter(2, &cur);
     }
+    key[len] = *cur;
+    cur++;
+    len++;
+  }
+  key[len] = '\0';
+
+  pKV->key = calloc(len + 1, 1);
+  memcpy(pKV->key, key, len + 1);
+  //tscDebug("Key:%s|len:%d", pKV->key, len);
+  *index = cur + 1;
+  return TSDB_CODE_SUCCESS;
+}
 
-    SStrToken tagKey = {.z = line.z + start, .n = pos-start};
-    setItemKey(&item, tagKey, LP_TAG_KEY);
 
-    start = pos + 1;
-    err = scanToCommaOrSpace(line, start, &pos, LP_TAG_VALUE);
-    if (err != 0) {
-      tscError("c");
-      goto error;
+static bool parseSmlValue(TAOS_SML_KV *pKV, const char **index,
+                          bool *is_last_kv) {
+  const char *start, *cur;
+  char *value = NULL;
+  uint16_t len = 0;
+  start = cur = *index;
+
+  while (1) {
+    // unescaped ',' or ' ' or '\0' identifies a value
+    if ((*cur == ',' || *cur == ' ' || *cur == '\0') && *(cur - 1) != '\\') {
+      //unescaped ' ' or '\0' indicates end of value
+      *is_last_kv = (*cur == ' ' || *cur == '\0') ? true : false;
+      break;
     }
+    //Escape special character
+    if (*cur == '\\') {
+      escapeSpecialCharacter(2, &cur);
+    }
+    cur++;
+    len++;
+  }
 
-    SStrToken tagValue = {.z = line.z + start, .n = pos-start};
-    setItemValue(&item, tagValue, LP_TAG_VALUE);
+  value = calloc(len + 1, 1);
+  memcpy(value, start, len);
+  value[len] = '\0';
+  if (!convertSmlValueType(pKV, value, len)) {
+    //free previous alocated key field
+    free(pKV->key);
+    free(value);
+    return TSDB_CODE_TSC_LINE_SYNTAX_ERROR;
+  }
+  free(value);
 
-    parseItemValue(&item, LP_ITEM_TAG);
-    taosArrayPush(point->tags, &item);
+  *index = (*cur == '\0') ? cur : cur + 1;
+  return TSDB_CODE_SUCCESS;
+}
 
-    start = pos;
+static int32_t parseSmlMeasurement(TAOS_SML_DATA_POINT *pSml, const char **index,
+                                   uint8_t *has_tags) {
+  const char *cur = *index;
+  uint16_t len = 0;
+
+  pSml->stableName = calloc(TSDB_TABLE_NAME_LEN, 1);
+  if (isdigit(*cur)) {
+    tscError("Measurement field cannnot start with digit");
+    free(pSml->stableName);
+    pSml->stableName = NULL;
+    return TSDB_CODE_TSC_LINE_SYNTAX_ERROR;
   }
 
-  taosArraySort(point->tags, compareLPItemKey);
+  while (*cur != '\0') {
+    if (len > TSDB_TABLE_NAME_LEN) {
+      tscError("Measurement field cannot exceeds 193 characters");
+      free(pSml->stableName);
+      pSml->stableName = NULL;
+      return TSDB_CODE_TSC_LINE_SYNTAX_ERROR;
+    }
+    //first unescaped comma or space identifies measurement
+    //if space detected first, meaning no tag in the input
+    if (*cur == ',' && *(cur - 1) != '\\') {
+      *has_tags = 1;
+      break;
+    }
+    if (*cur == ' ' && *(cur - 1) != '\\') {
+      break;
+    }
+    //Comma, Space, Backslash needs to be escaped if any
+    if (*cur == '\\') {
+      escapeSpecialCharacter(1, &cur);
+    }
+    pSml->stableName[len] = *cur;
+    cur++;
+    len++;
+  }
+  pSml->stableName[len] = '\0';
+  *index = cur + 1;
+  tscDebug("Stable name in measurement:%s|len:%d", pSml->stableName, len);
 
-  point->fields = taosArrayInit(64, sizeof(SLPItem));
+  return TSDB_CODE_SUCCESS;
+}
 
-  start++;
-  do {
-    SLPItem item;
+static int32_t parseSmlKvPairs(TAOS_SML_KV **pKVs, int *num_kvs,
+                               const char **index, bool isField, TAOS_SML_DATA_POINT* smlData) {
+  const char *cur = *index;
+  int32_t ret = TSDB_CODE_SUCCESS;
+  TAOS_SML_KV *pkv;
+  bool is_last_kv = false;
+
+  int32_t capacity = 0;
+  if (isField) {
+    capacity = 64;
+    *pKVs = calloc(capacity, sizeof(TAOS_SML_KV));
+    // leave space for timestamp;
+    pkv = *pKVs;
+    pkv++;
+  } else {
+    capacity = 8;
+    *pKVs = calloc(capacity, sizeof(TAOS_SML_KV));
+    pkv = *pKVs;
+  }
 
-    err = scanToEqual(line, start, &pos);
-    if (err != 0) {
+  while (*cur != '\0') {
+    ret = parseSmlKey(pkv, &cur);
+    if (ret) {
+      tscError("Unable to parse key field");
       goto error;
     }
-    SStrToken fieldKey = {.z = line.z + start, .n = pos- start};
-    setItemKey(&item, fieldKey, LP_FIELD_KEY);
-
-    start = pos + 1;
-    err = scanToCommaOrSpace(line, start, &pos, LP_FIELD_VALUE);
-    if (err != 0) {
+    ret = parseSmlValue(pkv, &cur, &is_last_kv);
+    if (ret) {
+      tscError("Unable to parse value field");
       goto error;
     }
-    SStrToken fieldValue = {.z = line.z + start, .n = pos - start};
-    setItemValue(&item, fieldValue, LP_TAG_VALUE);
-
-    parseItemValue(&item, LP_ITEM_FIELD);
-    taosArrayPush(point->fields, &item);
-
-    start = pos + 1;
-  } while (line.z[pos] == ',');
+    if (!isField &&
+        (strcasecmp(pkv->key, "ID") == 0) && pkv->type == TSDB_DATA_TYPE_BINARY) {
+      smlData->childTableName = malloc( pkv->length + 1);
+      memcpy(smlData->childTableName, pkv->value, pkv->length);
+      smlData->childTableName[pkv->length] = '\0';
+      free(pkv->key);
+      free(pkv->value);
+    } else {
+      *num_kvs += 1;
+    }
+    if (is_last_kv) {
+      //tscDebug("last key-value field detected");
+      goto done;
+    }
 
-  taosArraySort(point->fields, compareLPItemKey);
+    //reallocate addtional memory for more kvs
+    TAOS_SML_KV *more_kvs = NULL;
 
-  SStrToken tsToken = {.z = line.z+start, .n = line.n-start};
-  setPointTimeStamp(point, tsToken);
-  parsePointTime(point);
+    if (isField) {
+      if ((*num_kvs + 2) > capacity) {
+        capacity *= 3; capacity /= 2;
+        more_kvs = realloc(*pKVs, capacity * sizeof(TAOS_SML_KV));
+      } else {
+        more_kvs = *pKVs;
+      }
+    } else {
+      if ((*num_kvs + 1) > capacity) {
+        capacity *= 3; capacity /= 2;
+        more_kvs = realloc(*pKVs, capacity * sizeof(TAOS_SML_KV));
+      } else {
+        more_kvs = *pKVs;
+      }
+    }
 
+    if (!more_kvs) {
+      goto error;
+    }
+    *pKVs = more_kvs;
+    //move pKV points to next TAOS_SML_KV block
+    if (isField) {
+      pkv = *pKVs + *num_kvs + 1;
+    } else {
+      pkv = *pKVs + *num_kvs;
+    }
+  }
   goto done;
 
-  error:
-  // free array
-  return err;
-  done:
-  return 0;
+error:
+  return ret;
+done:
+  *index = cur;
+  return ret;
+}
+
+static void moveTimeStampToFirstKv(TAOS_SML_DATA_POINT** smlData, TAOS_SML_KV *ts) {
+  TAOS_SML_KV* tsField = (*smlData)->fields;
+  tsField->length = ts->length;
+  tsField->type = ts->type;
+  tsField->value = malloc(ts->length);
+  tsField->key = malloc(strlen(ts->key) + 1);
+  memcpy(tsField->key, ts->key, strlen(ts->key) + 1);
+  memcpy(tsField->value, ts->value, ts->length);
+  (*smlData)->fieldNum = (*smlData)->fieldNum + 1;
+
+  free(ts->key);
+  free(ts->value);
+  free(ts);
 }
 
+int32_t tscParseLine(const char* sql, TAOS_SML_DATA_POINT* smlData) {
+  const char* index = sql;
+  int32_t ret = TSDB_CODE_SUCCESS;
+  uint8_t has_tags = 0;
+  TAOS_SML_KV *timestamp = NULL;
 
-int32_t tscParseLines(char* lines[], int numLines, SArray* points, SArray* failedLines) {
-  for (int32_t i = 0; i < numLines; ++i) {
-    SStrToken tkLine = {.z = lines[i], .n = (uint32_t)strlen(lines[i])};
-    SLPPoint point;
-    tscParseLine(tkLine, &point);
-    taosArrayPush(points, &point);
+  ret = parseSmlMeasurement(smlData, &index, &has_tags);
+  if (ret) {
+    tscError("Unable to parse measurement");
+    return ret;
   }
-  return 0;
-}
+  tscDebug("Parse measurement finished, has_tags:%d", has_tags);
+
+  //Parse Tags
+  if (has_tags) {
+    ret = parseSmlKvPairs(&smlData->tags, &smlData->tagNum, &index, false, smlData);
+    if (ret) {
+      tscError("Unable to parse tag");
+      return ret;
+    }
+  }
+  tscDebug("Parse tags finished, num of tags:%d", smlData->tagNum);
 
-void destroyLPPoint(void* p) {
-  SLPPoint* lpPoint = p;
-  for (int i=0; i<taosArrayGetSize(lpPoint->fields); ++i) {
-    SLPItem* item = taosArrayGet(lpPoint->fields, i);
-    free(item->value);
+  //Parse fields
+  ret = parseSmlKvPairs(&smlData->fields, &smlData->fieldNum, &index, true, smlData);
+  if (ret) {
+    tscError("Unable to parse field");
+    return ret;
   }
-  taosArrayDestroy(lpPoint->fields);
+  tscDebug("Parse fields finished, num of fields:%d", smlData->fieldNum);
 
-  for (int i=0; i<taosArrayGetSize(lpPoint->tags); ++i) {
-    SLPItem* item = taosArrayGet(lpPoint->tags, i);
-    free(item->value);
+  //Parse timestamp
+  ret = parseSmlTimeStamp(&timestamp, &index);
+  if (ret) {
+    tscError("Unable to parse timestamp");
+    return ret;
   }
-  taosArrayDestroy(lpPoint->tags);
+  moveTimeStampToFirstKv(&smlData, timestamp);
+  tscDebug("Parse timestamp finished");
+
+  return TSDB_CODE_SUCCESS;
 }
 
+//=========================================================================
+
 void destroySmlDataPoint(TAOS_SML_DATA_POINT* point) {
   for (int i=0; i<point->tagNum; ++i) {
     free((point->tags+i)->key);
@@ -1139,76 +1761,67 @@ void destroySmlDataPoint(TAOS_SML_DATA_POINT* point) {
   free(point->childTableName);
 }
 
-int taos_insert_lines(TAOS* taos, char* lines[], int numLines) {
-  SArray* lpPoints = taosArrayInit(numLines, sizeof(SLPPoint));
-  tscParseLines(lines, numLines, lpPoints, NULL);
-
-  size_t numPoints = taosArrayGetSize(lpPoints);
-  TAOS_SML_DATA_POINT* points = calloc(numPoints, sizeof(TAOS_SML_DATA_POINT));
-  for (int i = 0; i < numPoints; ++i) {
-    SLPPoint* lpPoint = taosArrayGet(lpPoints, i);
-    TAOS_SML_DATA_POINT* point = points+i;
-    point->stableName = calloc(1, strlen(lpPoint->sTableName)+1);
-    strncpy(point->stableName, lpPoint->sTableName, strlen(lpPoint->sTableName));
-    point->stableName[strlen(lpPoint->sTableName)] = '\0';
-
-    size_t lpTagSize = taosArrayGetSize(lpPoint->tags);
-    point->tags = calloc(lpTagSize, sizeof(TAOS_SML_KV));
-    point->tagNum = (int)lpTagSize;
-    for (int j=0; j<lpTagSize; ++j) {
-      SLPItem* lpTag = taosArrayGet(lpPoint->tags, j);
-      TAOS_SML_KV* tagKv = point->tags + j;
+int32_t tscParseLines(char* lines[], int numLines, SArray* points, SArray* failedLines) {
+  for (int32_t i = 0; i < numLines; ++i) {
+    TAOS_SML_DATA_POINT point = {0};
+    int32_t code = tscParseLine(lines[i], &point);
+    if (code != TSDB_CODE_SUCCESS) {
+      tscError("data point line parse failed. line %d : %s", i, lines[i]);
+      destroySmlDataPoint(&point);
+      return TSDB_CODE_TSC_LINE_SYNTAX_ERROR;
+    } else {
+      tscDebug("data point line parse success. line %d", i);
+    }
 
-      size_t kenLen = strlen(lpTag->key);
-      tagKv->key = calloc(1, kenLen+1);
-      strncpy(tagKv->key, lpTag->key, kenLen);
-      tagKv->key[kenLen] = '\0';
+    taosArrayPush(points, &point);
+  }
+  return 0;
+}
 
-      tagKv->type = lpTag->type;
-      tagKv->length = lpTag->length;
-      tagKv->value = malloc(tagKv->length);
-      memcpy(tagKv->value, lpTag->value, tagKv->length);
-    }
+int taos_insert_lines(TAOS* taos, char* lines[], int numLines) {
+  int32_t code = 0;
 
-    size_t lpFieldsSize = taosArrayGetSize(lpPoint->fields);
-    point->fields = calloc(lpFieldsSize + 1, sizeof(TAOS_SML_KV));
-    point->fieldNum = (int)(lpFieldsSize + 1);
+  if (numLines <= 0 || numLines > 65536) {
+    tscError("taos_insert_lines numLines should be between 1 and 65536. numLines: %d", numLines);
+    code = TSDB_CODE_TSC_APP_ERROR;
+    return code;
+  }
 
-    TAOS_SML_KV* tsField = point->fields + 0;
-    char tsKey[256];
-    snprintf(tsKey, 256, "_%s_ts", point->stableName);
-    size_t tsKeyLen = strlen(tsKey);
-    tsField->key = calloc(1, tsKeyLen+1);
-    strncpy(tsField->key, tsKey, tsKeyLen);
-    tsField->key[tsKeyLen] = '\0';
-    tsField->type = TSDB_DATA_TYPE_TIMESTAMP;
-    tsField->length = tDataTypes[TSDB_DATA_TYPE_TIMESTAMP].bytes;
-    tsField->value = malloc(tsField->length);
-    memcpy(tsField->value, &(lpPoint->ts), tsField->length);
+  for (int i = 0; i < numLines; ++i) {
+    if (lines[i] == NULL) {
+      tscError("taos_insert_lines line %d is NULL", i);
+      code = TSDB_CODE_TSC_APP_ERROR;
+      return code;
+    }
+  }
 
-    for (int j=0; j<lpFieldsSize; ++j) {
-      SLPItem* lpField = taosArrayGet(lpPoint->fields, j);
-      TAOS_SML_KV* fieldKv = point->fields + j + 1;
+  SArray* lpPoints = taosArrayInit(numLines, sizeof(TAOS_SML_DATA_POINT));
+  if (lpPoints == NULL) {
+    tscError("taos_insert_lines failed to allocate memory");
+    return TSDB_CODE_TSC_OUT_OF_MEMORY;
+  }
 
-      size_t kenLen = strlen(lpField->key);
-      fieldKv->key = calloc(1, kenLen+1);
-      strncpy(fieldKv->key, lpField->key, kenLen);
-      fieldKv->key[kenLen] = '\0';
+  tscDebug("taos_insert_lines begin inserting %d lines, first line: %s", numLines, lines[0]);
+  code = tscParseLines(lines, numLines, lpPoints, NULL);
+  size_t numPoints = taosArrayGetSize(lpPoints);
 
-      fieldKv->type = lpField->type;
-      fieldKv->length = lpField->length;
-      fieldKv->value = malloc(fieldKv->length);
-      memcpy(fieldKv->value, lpField->value, fieldKv->length);
-    }
+  if (code != 0) {
+    goto cleanup;
   }
 
-  taos_sml_insert(taos, points, (int)numPoints);
+  TAOS_SML_DATA_POINT* points = TARRAY_GET_START(lpPoints);
+  code = taos_sml_insert(taos, points, (int)numPoints);
+  if (code != 0) {
+    tscError("taos_sml_insert error: %s", tstrerror((code)));
+  }
 
+cleanup:
+  tscDebug("taos_insert_lines finish inserting %d lines. code: %d", numLines, code);
   for (int i=0; i<numPoints; ++i) {
     destroySmlDataPoint(points+i);
   }
-  free(points);
-  taosArrayDestroyEx(lpPoints, destroyLPPoint);
-  return 0;
+
+  taosArrayDestroy(lpPoints);
+  return code;
 }
 

src/client/src/tscPrepare.c

@@ -1617,6 +1617,8 @@ int taos_stmt_set_tbname_tags(TAOS_STMT* stmt, const char* name, TAOS_BIND* tags
       (*t1)->prevTS = INT64_MIN;
     }
 
+    tsSetBlockInfo(pBlk, (*t1)->pTableMeta, pBlk->numOfRows);
+
     taosHashPut(pCmd->insertParam.pTableBlockHashList, (void *)&pStmt->mtb.currentUid, sizeof(pStmt->mtb.currentUid), (void*)t1, POINTER_BYTES);
 
     tscDebug("0x%"PRIx64" table:%s is already prepared, uid:%" PRIu64, pSql->self, name, pStmt->mtb.currentUid);

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

@@ -348,4 +348,13 @@ public class TSDBJNIConnector {
     }
 
     private native int closeStmt(long stmt, long con);
+
+    public void insertLines(String[] lines) throws SQLException {
+        int code = insertLinesImp(lines, this.taos);
+        if (code != TSDBConstants.JNI_SUCCESS) {
+            throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_UNKNOWN, "failed to insertLines");
+        }
+    }
+
+    private native int insertLinesImp(String[] lines, long conn);
 }

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

@@ -114,6 +114,10 @@ public class TSDBJNIConnectorTest {
                 throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_JNI_RESULT_SET_NULL);
             }
             // close statement
+            connector.executeQuery("use d");
+            String[] lines = new String[] {"st,t1=3i64,t2=4f64,t3=\"t3\" c1=3i64,c3=L\"passit\",c2=false,c4=4f64 1626006833639000000ns",
+                                           "st,t1=4i64,t3=\"t4\",t2=5f64,t4=5f64 c1=3i64,c3=L\"passitagin\",c2=true,c4=5f64,c5=5f64 1626006833640000000ns"};
+            connector.insertLines(lines);
 
             // close connection
             connector.closeConnection();

src/connector/python/taos/cinterface.py

@@ -403,6 +403,20 @@ class CTaosInterface(object):
         """
         return CTaosInterface.libtaos.taos_affected_rows(result)
 
+    @staticmethod
+    def insertLines(connection, lines):
+        '''
+            insert through lines protocol
+            @lines: list of str
+            @rtype: tsdb error codes 
+        '''
+        numLines = len(lines)
+        c_lines_type = ctypes.c_char_p*numLines
+        c_lines = c_lines_type()
+        for i in range(numLines):
+            c_lines[i] = ctypes.c_char_p(lines[i].encode('utf-8'))
+        return CTaosInterface.libtaos.taos_insert_lines(connection, c_lines, ctypes.c_int(numLines))
+
     @staticmethod
     def subscribe(connection, restart, topic, sql, interval):
         """Create a subscription

src/connector/python/taos/connection.py

@@ -66,6 +66,14 @@ class TDengineConnection(object):
             self._conn, restart, topic, sql, interval)
         return TDengineSubscription(sub)
 
+    def insertLines(self, lines):
+        """
+        insert lines through line protocol
+        """
+        if self._conn is None:
+            return None
+        return CTaosInterface.insertLines(self._conn, lines)
+        
     def cursor(self):
         """Return a new Cursor object using the connection.
         """

src/inc/taoserror.h

@@ -101,6 +101,7 @@ int32_t* taosGetErrno();
 #define TSDB_CODE_TSC_INVALID_TABLE_NAME        TAOS_DEF_ERROR_CODE(0, 0x0218)  //"Table does not exist")
 #define TSDB_CODE_TSC_EXCEED_SQL_LIMIT          TAOS_DEF_ERROR_CODE(0, 0x0219)  //"SQL statement too long check maxSQLLength config")
 #define TSDB_CODE_TSC_FILE_EMPTY                TAOS_DEF_ERROR_CODE(0, 0x021A)  //"File is empty")
+#define TSDB_CODE_TSC_LINE_SYNTAX_ERROR         TAOS_DEF_ERROR_CODE(0, 0x021B)  //"Syntax error in Line")
 
 // mnode
 #define TSDB_CODE_MND_MSG_NOT_PROCESSED         TAOS_DEF_ERROR_CODE(0, 0x0300)  //"Message not processed")

tests/examples/c/CMakeLists.txt

@@ -5,6 +5,8 @@ IF (TD_LINUX)
   AUX_SOURCE_DIRECTORY(. SRC)
   ADD_EXECUTABLE(demo apitest.c)
   TARGET_LINK_LIBRARIES(demo taos_static trpc tutil pthread )
+  ADD_EXECUTABLE(sml schemaless.c)
+  TARGET_LINK_LIBRARIES(sml taos_static trpc tutil pthread )
   ADD_EXECUTABLE(subscribe subscribe.c)
   TARGET_LINK_LIBRARIES(subscribe taos_static trpc tutil pthread )
   ADD_EXECUTABLE(epoll epoll.c)

tests/examples/c/apitest.c

@@ -964,21 +964,31 @@ int32_t verify_schema_less(TAOS* taos) {
   usleep(100000);
 
   char* lines[] = {
-      "st,t1=3i,t2=4,t3=\"t3\" c1=3i,c3=L\"passit\",c2=false,c4=4 1626006833639000000",
-      "st,t1=4i,t3=\"t4\",t2=5,t4=5 c1=3i,c3=L\"passitagin\",c2=true,c4=5,c5=5 1626006833640000000",
-      "ste,t2=5,t3=L\"ste\" c1=true,c2=4,c3=\"iam\" 1626056811823316532",
-      "st,t1=4i,t2=5,t3=\"t4\" c1=3i,c3=L\"passitagain\",c2=true,c4=5 1626006833642000000",
-      "ste,t2=5,t3=L\"ste2\" c3=\"iamszhou\",c4=false 1626056811843316532",
-      "ste,t2=5,t3=L\"ste2\" c3=\"iamszhou\",c4=false,c5=32b,c6=64s,c7=32w,c8=88.88f 1626056812843316532",
-      "st,t1=4i,t3=\"t4\",t2=5,t4=5 c1=3i,c3=L\"passitagin\",c2=true,c4=5,c5=5,c6=7u 1626006933640000000",
-      "stf,t1=4i,t3=\"t4\",t2=5,t4=5 c1=3i,c3=L\"passitagin\",c2=true,c4=5,c5=5,c6=7u 1626006933640000000",
-      "stf,t1=4i,t3=\"t4\",t2=5,t4=5 c1=3i,c3=L\"passitagin_stf\",c2=false,c5=5,c6=7u 1626006933641a"
+      "st,t1=3i64,t2=4f64,t3=\"t3\" c1=3i64,c3=L\"passit\",c2=false,c4=4f64 1626006833639000000ns",
+      "st,t1=4i64,t3=\"t4\",t2=5f64,t4=5f64 c1=3i64,c3=L\"passitagin\",c2=true,c4=5f64,c5=5f64 1626006833640000000ns",
+      "ste,t2=5f64,t3=L\"ste\" c1=true,c2=4i64,c3=\"iam\" 1626056811823316532ns",
+      "st,t1=4i64,t2=5f64,t3=\"t4\" c1=3i64,c3=L\"passitagain\",c2=true,c4=5f64 1626006833642000000ns",
+      "ste,t2=5f64,t3=L\"ste2\" c3=\"iamszhou\",c4=false 1626056811843316532ns",
+      "ste,t2=5f64,t3=L\"ste2\" c3=\"iamszhou\",c4=false,c5=32i8,c6=64i16,c7=32i32,c8=88.88f32 1626056812843316532ns",
+      "st,t1=4i64,t3=\"t4\",t2=5f64,t4=5f64 c1=3i64,c3=L\"passitagin\",c2=true,c4=5f64,c5=5f64,c6=7u64 1626006933640000000ns",
+      "stf,t1=4i64,t3=\"t4\",t2=5f64,t4=5f64 c1=3i64,c3=L\"passitagin\",c2=true,c4=5f64,c5=5f64,c6=7u64 1626006933640000000ns",
+      "stf,t1=4i64,t3=\"t4\",t2=5f64,t4=5f64 c1=3i64,c3=L\"passitagin_stf\",c2=false,c5=5f64,c6=7u64 1626006933641000000ns"
   };
 
-//  int code = taos_insert_lines(taos, lines , sizeof(lines)/sizeof(char*));
-  int code = taos_insert_lines(taos, &lines[0], 1);
-  code = taos_insert_lines(taos, &lines[1], 1);
+  int code = 0;
+  code = taos_insert_lines(taos, lines , sizeof(lines)/sizeof(char*));
+  char* lines2[] = {
+      "stg,t1=3i64,t2=4f64,t3=\"t3\" c1=3i64,c3=L\"passit\",c2=false,c4=4f64 1626006833639000000ns",
+      "stg,t1=4i64,t3=\"t4\",t2=5f64,t4=5f64 c1=3i64,c3=L\"passitagin\",c2=true,c4=5f64,c5=5f64 1626006833640000000ns"
+  };
+  code = taos_insert_lines(taos, &lines2[0], 1);
+  code = taos_insert_lines(taos, &lines2[1], 1);
 
+  char* lines3[] = {
+      "sth,t1=4i64,t2=5f64,t4=5f64,ID=\"childtable\" c1=3i64,c3=L\"passitagin_stf\",c2=false,c5=5f64,c6=7u64 1626006933641ms",
+      "sth,t1=4i64,t2=5f64,t4=5f64 c1=3i64,c3=L\"passitagin_stf\",c2=false,c5=5f64,c6=7u64 1626006933654ms"
+  };
+  code = taos_insert_lines(taos, lines3, 2);
   return code;
 }
 
@@ -1000,10 +1010,8 @@ int main(int argc, char *argv[]) {
   printf("client info: %s\n", info);
 
   printf("************  verify shemaless  *************\n");
-  int code = verify_schema_less(taos);
-  if (code == 0) {
-    return code;
-  }
+  verify_schema_less(taos);
+
 
   printf("************  verify query  *************\n");
   verify_query(taos);

tests/examples/c/schemaless.c

+#include "taos.h"
+#include "taoserror.h"
+#include "os.h"
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/time.h>
+#include <time.h>
+#include <unistd.h>
+
+int numSuperTables = 8;
+int numChildTables = 1024;
+int numRowsPerChildTable = 128;
+
+void shuffle(char**lines, size_t n)
+{
+  if (n > 1)
+  {
+    size_t i;
+    for (i = 0; i < n - 1; i++)
+    {
+      size_t j = i + rand() / (RAND_MAX / (n - i) + 1);
+      char* t = lines[j];
+      lines[j] = lines[i];
+      lines[i] = t;
+    }
+  }
+}
+
+static int64_t getTimeInUs() {
+  struct timeval systemTime;
+  gettimeofday(&systemTime, NULL);
+  return (int64_t)systemTime.tv_sec * 1000000L + (int64_t)systemTime.tv_usec;
+}
+
+int main(int argc, char* argv[]) {
+  TAOS_RES *result;
+  const char* host = "127.0.0.1";
+  const char* user = "root";
+  const char* passwd = "taosdata";
+
+  taos_options(TSDB_OPTION_TIMEZONE, "GMT-8");
+  TAOS* taos = taos_connect(host, user, passwd, "", 0);
+  if (taos == NULL) {
+    printf("\033[31mfailed to connect to db, reason:%s\033[0m\n", taos_errstr(taos));
+    exit(1);
+  }
+
+  char* info = taos_get_server_info(taos);
+  printf("server info: %s\n", info);
+  info = taos_get_client_info(taos);
+  printf("client info: %s\n", info);
+  result = taos_query(taos, "drop database if exists db;");
+  taos_free_result(result);
+  usleep(100000);
+  result = taos_query(taos, "create database db precision 'ms';");
+  taos_free_result(result);
+  usleep(100000);
+
+  (void)taos_select_db(taos, "db");
+
+  time_t ct = time(0);
+  int64_t ts = ct * 1000;
+  char* lineFormat = "sta%d,t0=true,t1=127i8,t2=32767i16,t3=%di32,t4=9223372036854775807i64,t9=11.12345f32,t10=22.123456789f64,t11=\"binaryTagValue\",t12=L\"ncharTagValue\" c0=true,c1=127i8,c2=32767i16,c3=2147483647i32,c4=9223372036854775807i64,c5=255u8,c6=32770u16,c7=2147483699u32,c8=9223372036854775899u64,c9=11.12345f32,c10=22.123456789f64,c11=\"binaryValue\",c12=L\"ncharValue\" %lldms";
+
+  char** lines = calloc(numSuperTables * numChildTables * numRowsPerChildTable, sizeof(char*));
+  int l = 0;
+  for (int i = 0; i < numSuperTables; ++i) {
+    for (int j = 0; j < numChildTables; ++j) {
+      for (int k = 0; k < numRowsPerChildTable; ++k) {
+        char* line = calloc(512, 1);
+        snprintf(line, 512, lineFormat, i, j, ts + 10 * l);
+        lines[l] = line;
+        ++l;
+      }
+    }
+  }
+  shuffle(lines, numSuperTables * numChildTables * numRowsPerChildTable);
+
+  printf("%s\n", "begin taos_insert_lines");
+  int64_t  begin = getTimeInUs();
+  int32_t code = taos_insert_lines(taos, lines, numSuperTables * numChildTables * numRowsPerChildTable);
+  int64_t end = getTimeInUs();
+  printf("code: %d, %s. time used: %"PRId64"\n", code, tstrerror(code), end-begin);
+
+  char* lines_000_0[] = {
+      "sta1,id=sta1_1,t0=true,t1=127i8,t2=32767i16,t3=2147483647i32,t4=9223372036854775807i64,t5=255u8,t6=32770u16,t7=2147483699u32,t8=9223372036854775899u64,t9=11.12345f32,t10=22.123456789f64,t11=\"binaryTagValue\",t12=L\"ncharTagValue\" c0=true,c1=127i8,c2=32767i16,c3=2147483647i32,c4=9223372036854775807i64,c5=255u8,c6=32770u16,c7=2147483699u32,c8=9223372036854775899u64,c9=11.12345f32,c10=22.123456789f64,c11=\"binaryValue\",c12=L\"ncharValue\" 1626006833639000us"
+  };
+
+  code = taos_insert_lines(taos, lines_000_0 , sizeof(lines_000_0)/sizeof(char*));
+  if (0 == code) {
+    printf("taos_insert_lines() lines_000_0 should return error\n");
+    return -1;
+  }
+
+  char* lines_000_1[] = {
+      "sta2,id=\"sta2_1\",t0=true,t1=127i8,t2=32767i16,t3=2147483647i32,t4=9223372036854775807i64,t5=255u8,t6=32770u16,t7=2147483699u32,t8=9223372036854775899u64,t9=11.12345f32,t10=22.123456789f64,t11=\"binaryTagValue\",t12=L\"ncharTagValue\" c0=true,c1=127i8,c2=32767i16,c3=2147483647i32,c4=9223372036854775807i64,c5=255u8,c6=32770u16,c7=2147483699u32,c8=9223372036854775899u64,c9=11.12345f32,c10=22.123456789f64,c11=\"binaryValue\",c12=L\"ncharValue\" 1626006833639001"
+  };
+
+  code = taos_insert_lines(taos, lines_000_1 , sizeof(lines_000_1)/sizeof(char*));
+  if (0 == code) {
+    printf("taos_insert_lines() lines_000_1 should return error\n");
+    return -1;
+  }
+
+  char* lines_000_2[] = {
+      "sta3,id=\"sta3_1\",t0=true,t1=127i8,t2=32767i16,t3=2147483647i32,t4=9223372036854775807i64,t9=11.12345f32,t10=22.123456789f64,t11=\"binaryTagValue\",t12=L\"ncharTagValue\" c0=true,c1=127i8,c2=32767i16,c3=2147483647i32,c4=9223372036854775807i64,c5=255u8,c6=32770u16,c7=2147483699u32,c8=9223372036854775899u64,c9=11.12345f32,c10=22.123456789f64,c11=\"binaryValue\",c12=L\"ncharValue\" 0"
+  };
+
+  code = taos_insert_lines(taos, lines_000_2 , sizeof(lines_000_2)/sizeof(char*));
+  if (0 != code) {
+    printf("taos_insert_lines() lines_000_2 return code:%d (%s)\n", code, (char*)tstrerror(code));
+    return -1;
+  }
+
+  char* lines_001_0[] = {
+      "sta4,t0=true,t1=127i8,t2=32767i16,t3=2147483647i32,t4=9223372036854775807i64,t9=11.12345f32,t10=22.123456789f64,t11=\"binaryTagValue\",t12=L\"ncharTagValue\" c0=true,c1=127i8,c2=32767i16,c3=2147483647i32,c4=9223372036854775807i64,c9=11.12345f32,c10=22.123456789f64,c11=\"binaryValue\",c12=L\"ncharValue\" 1626006833639000us",
+
+  };
+
+  code = taos_insert_lines(taos, lines_001_0 , sizeof(lines_001_0)/sizeof(char*));
+  if (0 != code) {
+    printf("taos_insert_lines() lines_001_0 return code:%d (%s)\n", code, (char*)tstrerror(code));
+    return -1;
+  }
+
+  char* lines_001_1[] = {
+      "sta5,id=\"sta5_1\",t0=true,t1=127i8,t2=32767i16,t3=2147483647i32,t4=9223372036854775807i64,t9=11.12345f32,t10=22.123456789f64,t11=\"binaryTagValue\",t12=L\"ncharTagValue\" c0=true,c1=127i8,c2=32767i16,c3=2147483647i32,c4=9223372036854775807i64,c9=11.12345f32,c10=22.123456789f64,c11=\"binaryValue\",c12=L\"ncharValue\" 1626006833639001"
+  };
+
+  code = taos_insert_lines(taos, lines_001_1 , sizeof(lines_001_1)/sizeof(char*));
+  if (0 != code) {
+    printf("taos_insert_lines() lines_001_1 return code:%d (%s)\n", code, (char*)tstrerror(code));
+    return -1;
+  }
+
+  char* lines_001_2[] = {
+      "sta6,id=\"sta6_1\",t0=true,t1=127i8,t2=32767i16,t3=2147483647i32,t4=9223372036854775807i64,t9=11.12345f32,t10=22.123456789f64,t11=\"binaryTagValue\",t12=L\"ncharTagValue\" c0=true,c1=127i8,c2=32767i16,c3=2147483647i32,c4=9223372036854775807i64,c9=11.12345f32,c10=22.123456789f64,c11=\"binaryValue\",c12=L\"ncharValue\" 0"
+  };
+
+  code = taos_insert_lines(taos, lines_001_2 , sizeof(lines_001_2)/sizeof(char*));
+  if (0 != code) {
+    printf("taos_insert_lines() lines_001_2 return code:%d (%s)\n", code, (char*)tstrerror(code));
+    return -1;
+  }
+
+  char* lines_002[] = {
+      "stb,id=\"stb_1\",t20=t,t21=T,t22=true,t23=True,t24=TRUE,t25=f,t26=F,t27=false,t28=False,t29=FALSE,t10=33.12345,t11=\"binaryTagValue\",t12=L\"ncharTagValue\" c20=t,c21=T,c22=true,c23=True,c24=TRUE,c25=f,c26=F,c27=false,c28=False,c29=FALSE,c10=33.12345,c11=\"binaryValue\",c12=L\"ncharValue\" 1626006833639000000ns",
+      "stc,id=\"stc_1\",t20=t,t21=T,t22=true,t23=True,t24=TRUE,t25=f,t26=F,t27=false,t28=False,t29=FALSE,t10=33.12345,t11=\"binaryTagValue\",t12=L\"ncharTagValue\" c20=t,c21=T,c22=true,c23=True,c24=TRUE,c25=f,c26=F,c27=false,c28=False,c29=FALSE,c10=33.12345,c11=\"binaryValue\",c12=L\"ncharValue\" 1626006833639019us",
+      "stc,id=\"stc_1\",t20=t,t21=T,t22=true,t23=True,t24=TRUE,t25=f,t26=F,t27=false,t28=False,t29=FALSE,t10=33.12345,t11=\"binaryTagValue\",t12=L\"ncharTagValue\" c20=t,c21=T,c22=true,c23=True,c24=TRUE,c25=f,c26=F,c27=false,c28=False,c29=FALSE,c10=33.12345,c11=\"binaryValue\",c12=L\"ncharValue\" 1626006833640ms",
+      "stc,id=\"stc_1\",t20=t,t21=T,t22=true,t23=True,t24=TRUE,t25=f,t26=F,t27=false,t28=False,t29=FALSE,t10=33.12345,t11=\"binaryTagValue\",t12=L\"ncharTagValue\" c20=t,c21=T,c22=true,c23=True,c24=TRUE,c25=f,c26=F,c27=false,c28=False,c29=FALSE,c10=33.12345,c11=\"binaryValue\",c12=L\"ncharValue\" 1626006834s"
+  };
+
+  code = taos_insert_lines(taos, lines_002 , sizeof(lines_002)/sizeof(char*));
+  if (0 != code) {
+    printf("taos_insert_lines() lines_002 return code:%d (%s)\n", code, (char*)tstrerror(code));
+    return -1;
+  }
+
+  return 0;
+}

tests/pytest/fulltest.sh

@@ -27,6 +27,7 @@ python3 ./test.py -f insert/bug3654.py
 python3 ./test.py -f insert/insertDynamicColBeforeVal.py
 python3 ./test.py -f insert/in_function.py
 python3 ./test.py -f insert/modify_column.py
+python3 ./test.py -f insert/line_insert.py
 
 #table
 python3 ./test.py -f table/alter_wal0.py

tests/pytest/insert/line_insert.py

+###################################################################
+#           Copyright (c) 2021 by TAOS Technologies, Inc.
+#                     All rights reserved.
+#
+#  This file is proprietary and confidential to TAOS Technologies.
+#  No part of this file may be reproduced, stored, transmitted,
+#  disclosed or used in any form or by any means other than as
+#  expressly provided by the written permission from Jianhui Tao
+#
+###################################################################
+
+# -*- coding: utf-8 -*-
+
+import 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)
+        self._conn = conn 
+
+    def run(self):
+        print("running {}".format(__file__))
+        tdSql.execute("drop database if exists test")
+        tdSql.execute("create database if not exists test precision 'us'")
+        tdSql.execute('use test')
+
+        tdSql.execute('create stable ste(ts timestamp, f int) tags(t1 bigint)')
+
+        lines = [   "st,t1=3i64,t2=4f64,t3=\"t3\" c1=3i64,c3=L\"passit\",c2=false,c4=4f64 1626006833639000000ns",
+                    "st,t1=4i64,t3=\"t4\",t2=5f64,t4=5f64 c1=3i64,c3=L\"passitagin\",c2=true,c4=5f64,c5=5f64 1626006833640000000ns",
+                    "ste,t2=5f64,t3=L\"ste\" c1=true,c2=4i64,c3=\"iam\" 1626056811823316532ns",
+                    "stf,t1=4i64,t3=\"t4\",t2=5f64,t4=5f64 c1=3i64,c3=L\"passitagin\",c2=true,c4=5f64,c5=5f64,c6=7u64 1626006933640000000ns",
+                    "st,t1=4i64,t2=5f64,t3=\"t4\" c1=3i64,c3=L\"passitagain\",c2=true,c4=5f64 1626006833642000000ns",
+                    "ste,t2=5f64,t3=L\"ste2\" c3=\"iamszhou\",c4=false 1626056811843316532ns",
+                    "ste,t2=5f64,t3=L\"ste2\" c3=\"iamszhou\",c4=false,c5=32i8,c6=64i16,c7=32i32,c8=88.88f32 1626056812843316532ns",
+                    "st,t1=4i64,t3=\"t4\",t2=5f64,t4=5f64 c1=3i64,c3=L\"passitagin\",c2=true,c4=5f64,c5=5f64,c6=7u64 1626006933640000000ns",
+                    "stf,t1=4i64,t3=\"t4\",t2=5f64,t4=5f64 c1=3i64,c3=L\"passitagin_stf\",c2=false,c5=5f64,c6=7u64 1626006933641000000ns"
+                ]
+
+        code = self._conn.insertLines(lines)
+        print("insertLines result {}".format(code))
+
+        lines2 = [  "stg,t1=3i64,t2=4f64,t3=\"t3\" c1=3i64,c3=L\"passit\",c2=false,c4=4f64 1626006833639000000ns",
+                    "stg,t1=4i64,t3=\"t4\",t2=5f64,t4=5f64 c1=3i64,c3=L\"passitagin\",c2=true,c4=5f64,c5=5f64 1626006833640000000ns"
+                ]
+        
+        code = self._conn.insertLines([ lines2[0] ])
+        print("insertLines result {}".format(code))
+
+        self._conn.insertLines([ lines2[1] ])
+        print("insertLines result {}".format(code))
+
+        tdSql.query("select * from st")
+        tdSql.checkRows(4)
+
+        tdSql.query("select * from ste")
+        tdSql.checkRows(3)
+
+        tdSql.query("select * from stf")
+        tdSql.checkRows(2)
+
+        tdSql.query("select * from stg")
+        tdSql.checkRows(2)
+
+        tdSql.query("show tables")
+        tdSql.checkRows(8)
+
+        tdSql.query("describe stf")
+        tdSql.checkData(2, 2, 14)
+
+        self._conn.insertLines([
+                                "sth,t1=4i64,t2=5f64,t4=5f64,ID=\"childtable\" c1=3i64,c3=L\"passitagin_stf\",c2=false,c5=5f64,c6=7u64 1626006933641ms",
+                                "sth,t1=4i64,t2=5f64,t4=5f64 c1=3i64,c3=L\"passitagin_stf\",c2=false,c5=5f64,c6=7u64 1626006933654ms"                    
+                                ])
+        tdSql.query('select tbname, * from sth')
+        tdSql.checkRows(2)
+
+        tdSql.query('select tbname, * from childtable')
+        tdSql.checkRows(1)
+    def stop(self):
+        tdSql.close()
+        tdLog.success("%s successfully executed" % __file__)
+
+
+tdCases.addWindows(__file__, TDTestCase())
+tdCases.addLinux(__file__, TDTestCase())

tests/script/fullGeneralSuite.sim

@@ -105,6 +105,7 @@ run general/parser/import_commit2.sim
 run general/parser/import_commit3.sim
 run general/parser/insert_tb.sim
 run general/parser/first_last.sim
+run general/parser/line_insert.sim
 #unsupport run general/parser/import_file.sim
 run general/parser/lastrow.sim
 run general/parser/nchar.sim

tests/script/general/parser/line_insert.sim

@@ -16,11 +16,10 @@ sql create database $db precision 'us'
 sql use $db
 sql create stable $mte (ts timestamp, f int) TAGS(t1 bigint)
 
-line_insert st,t1=3i,t2=4,t3="t3" c1=3i,c3=L"passit",c2=false,c4=4 1626006833639000000
-line_insert st,t1=4i,t3="t41",t2=5 c1=3i,c3=L"passiT",c2=true,c4=5 1626006833640000000
-line_insert stf,t1=4i,t2=5,t3="t4" c1=3i,c3=L"passitagain",c2=true,c4=5 1626006833642000000  
-line_insert ste,t2=5,t3=L"ste" c1=true,c2=4,c3="iam" 1626056811823316532
-
+line_insert st,t1=3i64,t2=4f64,t3="t3" c1=3i64,c3=L"passit",c2=false,c4=4f64 1626006833639000000ns
+line_insert st,t1=4i64,t3="t4",t2=5f64,t4=5f64 c1=3i64,c3=L"passitagin",c2=true,c4=5f64,c5=5f64 1626006833640000000ns
+line_insert ste,t2=5f64,t3=L"ste" c1=true,c2=4i64,c3="iam" 1626056811823316532ns
+line_insert stf,t1=4i64,t3="t4",t2=5f64,t4=5f64 c1=3i64,c3=L"passitagin",c2=true,c4=5f64,c5=5f64,c6=7u64 1626006933640000000ns
 sql select * from st
 if $rows != 2 then
   return -1
@@ -30,7 +29,7 @@ if $data00 != @21-07-11 20:33:53.639000@ then
   return -1
 endi
 
-if $data03 != @passit@ then
+if $data02 != @passit@ then
   return -1
 endi