fix convertToString float precsion and getSuperTableMeta for schemaless

src/client/src/tscParseLineProtocol.c

@@ -529,10 +529,10 @@ static int32_t fillDbSchema(STableMeta* tableMeta, char* tableName, SSmlSTableSc
   return TSDB_CODE_SUCCESS;
 }
 
-static int32_t getTableMetaFromLocalCache(TAOS* taos, char* tableName, STableMeta** outTableMeta, SSmlLinesInfo* info) {
+static int32_t getSuperTableMetaFromLocalCache(TAOS* taos, char* tableName, STableMeta** outTableMeta, SSmlLinesInfo* info) {
   int32_t     code = 0;
   STableMeta* tableMeta = NULL;
-  {
+
   SSqlObj* pSql = calloc(1, sizeof(SSqlObj));
   if (pSql == NULL) {
     tscError("SML:0x%" PRIx64 " failed to allocate memory, reason:%s", info->id, strerror(errno));
@@ -570,13 +570,22 @@ static int32_t getTableMetaFromLocalCache(TAOS* taos, char* tableName, STableMet
   size_t size = 0;
   taosHashGetCloneExt(UTIL_GET_TABLEMETA(pSql), fullTableName, strlen(fullTableName), NULL, (void**)&tableMeta, &size);
   taosReleaseRef(tscObjRef, pSql->self);
+
+  STableMeta* stableMeta = tableMeta;
+  if (tableMeta != NULL && tableMeta->tableType == TSDB_CHILD_TABLE) {
+      taosHashGetCloneExt(UTIL_GET_TABLEMETA(pSql), tableMeta->sTableName, strlen(tableMeta->sTableName), NULL,
+                          (void**)stableMeta, &size);
   }
 
-  if (tableMeta != NULL) {
+  if (stableMeta != tableMeta) {
+    free(tableMeta);
+  }
+
+  if (stableMeta != NULL) {
     if (outTableMeta != NULL) {
-      *outTableMeta = tableMeta;
+      *outTableMeta = stableMeta;
     } else {
-      free(tableMeta);
+      free(stableMeta);
     }
     return TSDB_CODE_SUCCESS;
   } else {
@@ -596,7 +605,7 @@ static int32_t retrieveTableMeta(TAOS* taos, char* tableName, STableMeta** pTabl
     }
 
     tscDebug("SML:0x%" PRIx64 " retrieve table meta. super table name: %s", info->id, tableName);
-    code = getTableMetaFromLocalCache(taos, tableName, &tableMeta, info);
+    code = getSuperTableMetaFromLocalCache(taos, tableName, &tableMeta, info);
     if (code == TSDB_CODE_SUCCESS) {
       tscDebug("SML:0x%" PRIx64 " successfully retrieved table meta. super table name: %s", info->id, tableName);
       break;
@@ -1172,51 +1181,46 @@ int tscSmlInsert(TAOS* taos, TAOS_SML_DATA_POINT* points, int numPoint, SSmlLine
 
   info->affectedRows = 0;
 
-  //TODO:
   if (numPoint == 1) {
-    TAOS_SML_DATA_POINT* point = points;
+    TAOS_SML_DATA_POINT* point = points + 0;
     if (!point->childTableName) {
       int tableNameLen = TSDB_TABLE_NAME_LEN;
       point->childTableName = calloc(1, tableNameLen + 1);
       getSmlMd5ChildTableName(point, point->childTableName, &tableNameLen, info);
       point->childTableName[tableNameLen] = '\0';
     }
-    int32_t ret = getTableMetaFromLocalCache(taos, point->childTableName, NULL, info);
-    if (ret == TSDB_CODE_SUCCESS) {
     STableMeta* tableMeta;
-      int32_t ret2 = getTableMetaFromLocalCache(taos, point->stableName, &tableMeta, info);
-      if (ret2 != TSDB_CODE_SUCCESS) {
-        tscError("SML:0x%"PRIx64" meta of super table %s not found but meta of child table %s found ",
-                 info->id, point->stableName, point->childTableName);
-      }
+    int32_t ret = getSuperTableMetaFromLocalCache(taos, point->stableName, &tableMeta, info);
+    if (ret == TSDB_CODE_SUCCESS) {
       uint8_t precision = tableMeta->tableInfo.precision;
       free(tableMeta);
 
-      char* sql = malloc(TSDB_MAX_SQL_LEN+1);
+      char* sql = malloc(TSDB_MAX_SQL_LEN + 1);
       int   freeBytes = TSDB_MAX_SQL_LEN;
       int   sqlLen = 0;
-      sqlLen += snprintf(sql+sqlLen, freeBytes-sqlLen, "insert into %s(", point->childTableName);
+      sqlLen += snprintf(sql + sqlLen, freeBytes - sqlLen, "insert into %s(", point->childTableName);
       for (int col = 0; col < point->fieldNum; ++col) {
         TAOS_SML_KV* kv = point->fields + col;
-        sqlLen += snprintf(sql+sqlLen, freeBytes-sqlLen, "%s,", kv->key);
+        sqlLen += snprintf(sql + sqlLen, freeBytes - sqlLen, "%s,", kv->key);
       }
       --sqlLen;
-      sqlLen += snprintf(sql+sqlLen, freeBytes-sqlLen, ") values (");
+      sqlLen += snprintf(sql + sqlLen, freeBytes - sqlLen, ") values (");
       TAOS_SML_KV* tsField = point->fields + 0;
       int64_t      ts = *(int64_t*)(tsField->value);
       ts = convertTimePrecision(ts, TSDB_TIME_PRECISION_NANO, precision);
-      sqlLen += snprintf(sql+sqlLen, freeBytes-sqlLen, "%" PRId64 ",", ts);
+      sqlLen += snprintf(sql + sqlLen, freeBytes - sqlLen, "%" PRId64 ",", ts);
       for (int col = 1; col < point->fieldNum; ++col) {
         TAOS_SML_KV* kv = point->fields + col;
         int32_t      len = 0;
-        converToStr(sql+sqlLen, kv->type, kv->value, kv->length, &len);
+        converToStr(sql + sqlLen, kv->type, kv->value, kv->length, &len);
         sqlLen += len;
-        sqlLen += snprintf(sql+sqlLen, freeBytes-sqlLen, ",");
+        sqlLen += snprintf(sql + sqlLen, freeBytes - sqlLen, ",");
       }
       --sqlLen;
-      sqlLen += snprintf(sql+sqlLen, freeBytes-sqlLen, ")");
+      sqlLen += snprintf(sql + sqlLen, freeBytes - sqlLen, ")");
       sql[sqlLen] = 0;
-      tscDebug("SML:0x%"PRIx64" insert child table table %s of super table %s sql: %s", info->id, point->childTableName, point->stableName, sql);
+      tscDebug("SML:0x%" PRIx64 " insert child table table %s of super table %s sql: %s", info->id,
+               point->childTableName, point->stableName, sql);
       TAOS_RES* res = taos_query(taos, sql);
       free(sql);
       code = taos_errno(res);

src/client/src/tscUtil.c

@@ -81,11 +81,11 @@ int32_t converToStr(char *str, int type, void *buf, int32_t bufSize, int32_t *le
       break;
 
     case TSDB_DATA_TYPE_FLOAT:
-      n = sprintf(str, "%e", GET_FLOAT_VAL(buf));
+      n = sprintf(str, "%.*e", DECIMAL_DIG, GET_FLOAT_VAL(buf));
       break;
 
     case TSDB_DATA_TYPE_DOUBLE:
-      n = sprintf(str, "%e", GET_DOUBLE_VAL(buf));
+      n = sprintf(str, "%.*e", DECIMAL_DIG, GET_DOUBLE_VAL(buf));
       break;
 
     case TSDB_DATA_TYPE_BINARY: