diff --git a/source/libs/parser/inc/parInt.h b/source/libs/parser/inc/parInt.h
index 8ec20cde5a07b54a5609a6097316e4ae5e538a83..3efe6700d2339b2234d33f868c0b42fa993d1b64 100644
--- a/source/libs/parser/inc/parInt.h
+++ b/source/libs/parser/inc/parInt.h
@@ -32,7 +32,6 @@ int32_t authenticate(SParseContext* pParseCxt, SQuery* pQuery);
 int32_t translate(SParseContext* pParseCxt, SQuery* pQuery);
 int32_t extractResultSchema(const SNode* pRoot, int32_t* numOfCols, SSchema** pSchema);
 int32_t calculateConstant(SParseContext* pParseCxt, SQuery* pQuery);
-int32_t isNotSchemalessDb(SParseContext* pContext, char *dbName);
 
 #ifdef __cplusplus
 }
diff --git a/source/libs/parser/src/parAstParser.c b/source/libs/parser/src/parAstParser.c
index 7abe2442610bbe85e823fb3fb85843351f8e52e8..96fb810e5ca02b722b03cad478135bb8c26c2da9 100644
--- a/source/libs/parser/src/parAstParser.c
+++ b/source/libs/parser/src/parAstParser.c
@@ -175,11 +175,11 @@ static int32_t collectMetaKeyFromSelect(SCollectMetaKeyCxt* pCxt, SSelectStmt* p
 }
 
 static int32_t collectMetaKeyFromCreateTable(SCollectMetaKeyCxt* pCxt, SCreateTableStmt* pStmt) {
-  if (NULL == pStmt->pTags) {
-    return reserveTableVgroupInCache(pCxt->pParseCxt->acctId, pStmt->dbName, pStmt->tableName, pCxt->pMetaCache);
-  } else {
-    return reserveDbCfgInCache(pCxt->pParseCxt->acctId, pStmt->dbName, pCxt->pMetaCache);
+  int32_t code = reserveDbCfgInCache(pCxt->pParseCxt->acctId, pStmt->dbName, pCxt->pMetaCache);
+  if (TSDB_CODE_SUCCESS == code && NULL == pStmt->pTags) {
+    code = reserveTableVgroupInCache(pCxt->pParseCxt->acctId, pStmt->dbName, pStmt->tableName, pCxt->pMetaCache);
   }
+  return code;
 }
 
 static int32_t collectMetaKeyFromCreateMultiTable(SCollectMetaKeyCxt* pCxt, SCreateMultiTableStmt* pStmt) {
@@ -187,8 +187,11 @@ static int32_t collectMetaKeyFromCreateMultiTable(SCollectMetaKeyCxt* pCxt, SCre
   SNode*  pNode = NULL;
   FOREACH(pNode, pStmt->pSubTables) {
     SCreateSubTableClause* pClause = (SCreateSubTableClause*)pNode;
-    code =
-        reserveTableMetaInCache(pCxt->pParseCxt->acctId, pClause->useDbName, pClause->useTableName, pCxt->pMetaCache);
+    code = reserveDbCfgInCache(pCxt->pParseCxt->acctId, pClause->dbName, pCxt->pMetaCache);
+    if (TSDB_CODE_SUCCESS == code) {
+      code =
+          reserveTableMetaInCache(pCxt->pParseCxt->acctId, pClause->useDbName, pClause->useTableName, pCxt->pMetaCache);
+    }
     if (TSDB_CODE_SUCCESS == code) {
       code = reserveTableVgroupInCache(pCxt->pParseCxt->acctId, pClause->dbName, pClause->tableName, pCxt->pMetaCache);
     }
diff --git a/source/libs/parser/src/parInsert.c b/source/libs/parser/src/parInsert.c
index 422c48039743185070ca5ea5f704627d26217253..efe0bd75b2fe66efc0d84932e877f873c4ae0319 100644
--- a/source/libs/parser/src/parInsert.c
+++ b/source/libs/parser/src/parInsert.c
@@ -254,7 +254,7 @@ static int32_t createSName(SName* pName, SToken* pTableName, int32_t acctId, con
 
 static int32_t checkAuth(SInsertParseContext* pCxt, char* pDbFname, bool* pPass) {
   SParseContext* pBasicCtx = pCxt->pComCxt;
-  if (NULL != pCxt->pMetaCache) {
+  if (pBasicCtx->async) {
     return getUserAuthFromCache(pCxt->pMetaCache, pBasicCtx->pUser, pDbFname, AUTH_TYPE_WRITE, pPass);
   }
   return catalogChkAuth(pBasicCtx->pCatalog, pBasicCtx->pTransporter, &pBasicCtx->mgmtEpSet, pBasicCtx->pUser, pDbFname,
@@ -263,7 +263,7 @@ static int32_t checkAuth(SInsertParseContext* pCxt, char* pDbFname, bool* pPass)
 
 static int32_t getTableSchema(SInsertParseContext* pCxt, SName* pTbName, bool isStb, STableMeta** pTableMeta) {
   SParseContext* pBasicCtx = pCxt->pComCxt;
-  if (NULL != pCxt->pMetaCache) {
+  if (pBasicCtx->async) {
     return getTableMetaFromCache(pCxt->pMetaCache, pTbName, pTableMeta);
   }
   if (isStb) {
@@ -275,7 +275,7 @@ static int32_t getTableSchema(SInsertParseContext* pCxt, SName* pTbName, bool is
 
 static int32_t getTableVgroup(SInsertParseContext* pCxt, SName* pTbName, SVgroupInfo* pVg) {
   SParseContext* pBasicCtx = pCxt->pComCxt;
-  if (NULL != pCxt->pMetaCache) {
+  if (pBasicCtx->async) {
     return getTableVgroupFromCache(pCxt->pMetaCache, pTbName, pVg);
   }
   return catalogGetTableHashVgroup(pBasicCtx->pCatalog, pBasicCtx->pTransporter, &pBasicCtx->mgmtEpSet, pTbName, pVg);
@@ -305,6 +305,16 @@ static int32_t getSTableMeta(SInsertParseContext* pCxt, SName* name, char* dbFna
   return getTableMetaImpl(pCxt, name, dbFname, true);
 }
 
+static int32_t getDBCfg(SInsertParseContext* pCxt, const char* pDbFName, SDbCfgInfo* pInfo) {
+  SParseContext* pBasicCtx = pCxt->pComCxt;
+  if (pBasicCtx->async) {
+    CHECK_CODE(getDbCfgFromCache(pCxt->pMetaCache, pDbFName, pInfo));
+  } else {
+    CHECK_CODE(catalogGetDBCfg(pBasicCtx->pCatalog, pBasicCtx->pTransporter, &pBasicCtx->mgmtEpSet, pDbFName, pInfo));
+  }
+  return TSDB_CODE_SUCCESS;
+}
+
 static int32_t findCol(SToken* pColname, int32_t start, int32_t end, SSchema* pSchema) {
   while (start < end) {
     if (strlen(pSchema[start].name) == pColname->n && strncmp(pColname->z, pSchema[start].name, pColname->n) == 0) {
@@ -1090,10 +1100,10 @@ static int32_t parseUsingClause(SInsertParseContext* pCxt, SName* name, char* tb
 
   SName sname;
   createSName(&sname, &sToken, pCxt->pComCxt->acctId, pCxt->pComCxt->db, &pCxt->msg);
-  char stbFName[TSDB_TABLE_FNAME_LEN];
-  tNameExtractFullName(&sname, stbFName);
+  char dbFName[TSDB_DB_FNAME_LEN];
+  tNameGetFullDbName(&sname, dbFName);
 
-  CHECK_CODE(getSTableMeta(pCxt, &sname, stbFName));
+  CHECK_CODE(getSTableMeta(pCxt, &sname, dbFName));
   if (TSDB_SUPER_TABLE != pCxt->pTableMeta->tableType) {
     return buildInvalidOperationMsg(&pCxt->msg, "create table only from super table is allowed");
   }
@@ -1282,6 +1292,14 @@ static void destroyInsertParseContext(SInsertParseContext* pCxt) {
   destroyBlockArrayList(pCxt->pVgDataBlocks);
 }
 
+static int32_t checkSchemalessDb(SInsertParseContext* pCxt, char* pDbName) {
+  SDbCfgInfo pInfo = {0};
+  char       fullName[TSDB_TABLE_FNAME_LEN];
+  snprintf(fullName, sizeof(fullName), "%d.%s", pCxt->pComCxt->acctId, pDbName);
+  CHECK_CODE(getDBCfg(pCxt, fullName, &pInfo));
+  return pInfo.schemaless ? TSDB_CODE_SML_INVALID_DB_CONF : TSDB_CODE_SUCCESS;
+}
+
 //   tb_name
 //       [USING stb_name [(tag1_name, ...)] TAGS (tag1_value, ...)]
 //       [(field1_name, ...)]
@@ -1335,7 +1353,7 @@ static int32_t parseInsertBody(SInsertParseContext* pCxt) {
     SName name;
     CHECK_CODE(createSName(&name, &tbnameToken, pCxt->pComCxt->acctId, pCxt->pComCxt->db, &pCxt->msg));
 
-    CHECK_CODE(isNotSchemalessDb(pCxt->pComCxt, name.dbname));
+    CHECK_CODE(checkSchemalessDb(pCxt, name.dbname));
 
     tNameExtractFullName(&name, tbFName);
     CHECK_CODE(taosHashPut(pCxt->pTableNameHashObj, tbFName, strlen(tbFName), &name, sizeof(SName)));
@@ -1413,23 +1431,6 @@ static int32_t parseInsertBody(SInsertParseContext* pCxt) {
   return buildOutput(pCxt);
 }
 
-int32_t isNotSchemalessDb(SParseContext* pContext, char *dbName){
-  SName          name;
-  tNameSetDbName(&name, pContext->acctId, dbName, strlen(dbName));
-  char dbFname[TSDB_DB_FNAME_LEN] = {0};
-  tNameGetFullDbName(&name, dbFname);
-  SDbCfgInfo pInfo = {0};
-  int32_t code = catalogGetDBCfg(pContext->pCatalog, pContext->pTransporter, &pContext->mgmtEpSet, dbFname, &pInfo);
-  if (code != TSDB_CODE_SUCCESS) {
-    parserError("catalogGetDBCfg error, code:%s, dbFName:%s", tstrerror(code), dbFname);
-    return code;
-  }
-  if (pInfo.schemaless){
-    parserError("can not insert into schemaless db:%s", dbFname);
-    return TSDB_CODE_SML_INVALID_DB_CONF;
-  }
-  return TSDB_CODE_SUCCESS;
-}
 // INSERT INTO
 //   tb_name
 //       [USING stb_name [(tag1_name, ...)] TAGS (tag1_value, ...)]
@@ -1472,6 +1473,8 @@ int32_t parseInsertSql(SParseContext* pContext, SQuery** pQuery) {
     if (NULL == *pQuery) {
       return TSDB_CODE_OUT_OF_MEMORY;
     }
+  } else {
+    context.pMetaCache = (*pQuery)->pMetaCache;
   }
   (*pQuery)->execMode = QUERY_EXEC_MODE_SCHEDULE;
   (*pQuery)->haveResultSet = false;
@@ -1586,12 +1589,20 @@ static int32_t skipUsingClause(SInsertParseSyntaxCxt* pCxt) {
 static int32_t collectTableMetaKey(SInsertParseSyntaxCxt* pCxt, SToken* pTbToken) {
   SName name;
   CHECK_CODE(createSName(&name, pTbToken, pCxt->pComCxt->acctId, pCxt->pComCxt->db, &pCxt->msg));
+  CHECK_CODE(reserveDbCfgInCache(pCxt->pComCxt->acctId, name.dbname, pCxt->pMetaCache));
   CHECK_CODE(reserveUserAuthInCacheExt(pCxt->pComCxt->pUser, &name, AUTH_TYPE_WRITE, pCxt->pMetaCache));
   CHECK_CODE(reserveTableMetaInCacheExt(&name, pCxt->pMetaCache));
   CHECK_CODE(reserveTableVgroupInCacheExt(&name, pCxt->pMetaCache));
   return TSDB_CODE_SUCCESS;
 }
 
+static int32_t collectAutoCreateTableMetaKey(SInsertParseSyntaxCxt* pCxt, SToken* pTbToken) {
+  SName name;
+  CHECK_CODE(createSName(&name, pTbToken, pCxt->pComCxt->acctId, pCxt->pComCxt->db, &pCxt->msg));
+  CHECK_CODE(reserveTableVgroupInCacheExt(&name, pCxt->pMetaCache));
+  return TSDB_CODE_SUCCESS;
+}
+
 static int32_t parseInsertBodySyntax(SInsertParseSyntaxCxt* pCxt) {
   bool hasData = false;
   // for each table
@@ -1620,6 +1631,7 @@ static int32_t parseInsertBodySyntax(SInsertParseSyntaxCxt* pCxt) {
 
     // USING clause
     if (TK_USING == sToken.type) {
+      CHECK_CODE(collectAutoCreateTableMetaKey(pCxt, &tbnameToken));
       NEXT_TOKEN(pCxt->pSql, sToken);
       CHECK_CODE(collectTableMetaKey(pCxt, &sToken));
       CHECK_CODE(skipUsingClause(pCxt));
@@ -2172,8 +2184,8 @@ static int32_t smlBuildTagRow(SArray* cols, SParsedDataColInfo* tags, SSchema* p
       val.nData = kv->length;
     } else if (pTagSchema->type == TSDB_DATA_TYPE_NCHAR) {
       int32_t output = 0;
-      void *p = taosMemoryCalloc(1, kv->length * TSDB_NCHAR_SIZE);
-      if(p == NULL){
+      void*   p = taosMemoryCalloc(1, kv->length * TSDB_NCHAR_SIZE);
+      if (p == NULL) {
         code = TSDB_CODE_OUT_OF_MEMORY;
         goto end;
       }
diff --git a/source/libs/parser/src/parTranslater.c b/source/libs/parser/src/parTranslater.c
index 2d37e9087dfce24a9305858ceaaacb1d802146e4..69e45e2dcf82848a9338b1aa8da0d53d28cd49c7 100644
--- a/source/libs/parser/src/parTranslater.c
+++ b/source/libs/parser/src/parTranslater.c
@@ -829,8 +829,9 @@ static EDealRes translateComparisonOperator(STranslateContext* pCxt, SOperatorNo
     if (!IS_VAR_DATA_TYPE(((SExprNode*)(pOp->pLeft))->resType.type)) {
       return generateDealNodeErrMsg(pCxt, TSDB_CODE_PAR_WRONG_VALUE_TYPE, ((SExprNode*)(pOp->pLeft))->aliasName);
     }
-    if (QUERY_NODE_VALUE != nodeType(pOp->pRight) || 
-      ((!IS_STR_DATA_TYPE(((SExprNode*)(pOp->pRight))->resType.type)) && (((SExprNode*)(pOp->pRight))->resType.type != TSDB_DATA_TYPE_NULL))) {
+    if (QUERY_NODE_VALUE != nodeType(pOp->pRight) ||
+        ((!IS_STR_DATA_TYPE(((SExprNode*)(pOp->pRight))->resType.type)) &&
+         (((SExprNode*)(pOp->pRight))->resType.type != TSDB_DATA_TYPE_NULL))) {
       return generateDealNodeErrMsg(pCxt, TSDB_CODE_PAR_WRONG_VALUE_TYPE, ((SExprNode*)(pOp->pRight))->aliasName);
     }
   }
@@ -2632,8 +2633,23 @@ static int32_t checkTableSchema(STranslateContext* pCxt, SCreateTableStmt* pStmt
   return code;
 }
 
+static int32_t checkSchemalessDb(STranslateContext* pCxt, const char* pDbName) {
+  if (0 != pCxt->pParseCxt->schemalessType) {
+    return TSDB_CODE_SUCCESS;
+  }
+  SDbCfgInfo info = {0};
+  int32_t    code = getDBCfg(pCxt, pDbName, &info);
+  if (TSDB_CODE_SUCCESS == code) {
+    code = info.schemaless ? TSDB_CODE_SML_INVALID_DB_CONF : TSDB_CODE_SUCCESS;
+  }
+  return code;
+}
+
 static int32_t checkCreateTable(STranslateContext* pCxt, SCreateTableStmt* pStmt) {
-  int32_t code = checTableFactorOption(pCxt, pStmt->pOptions->filesFactor);
+  int32_t code = checkSchemalessDb(pCxt, pStmt->dbName);
+  if (TSDB_CODE_SUCCESS == code) {
+    code = checTableFactorOption(pCxt, pStmt->pOptions->filesFactor);
+  }
   if (TSDB_CODE_SUCCESS == code) {
     code = checkTableRollupOption(pCxt, pStmt->pOptions->pRollupFuncs);
   }
@@ -2646,11 +2662,6 @@ static int32_t checkCreateTable(STranslateContext* pCxt, SCreateTableStmt* pStmt
   if (TSDB_CODE_SUCCESS == code) {
     code = checkTableSchema(pCxt, pStmt);
   }
-  if (TSDB_CODE_SUCCESS == code) {
-    if(pCxt->pParseCxt->schemalessType == 0){
-      code = isNotSchemalessDb(pCxt->pParseCxt, pStmt->dbName);
-    }
-  }
   return code;
 }
 
@@ -4238,7 +4249,7 @@ static int32_t buildKVRowForBindTags(STranslateContext* pCxt, SCreateSubTableCla
   int16_t  nTags = 0, nBufPos = 0;
   SSchema* pTagSchema = getTableTagSchema(pSuperTableMeta);
   SNode *  pTag = NULL, *pNode = NULL;
-  bool isJson = false;
+  bool     isJson = false;
   FORBOTH(pTag, pStmt->pSpecificTags, pNode, pStmt->pValsOfTags) {
     SColumnNode* pCol = (SColumnNode*)pTag;
     SSchema*     pSchema = NULL;
@@ -4271,11 +4282,11 @@ static int32_t buildKVRowForBindTags(STranslateContext* pCxt, SCreateSubTableCla
 
       isJson = true;
       code = parseJsontoTagData(pVal->literal, pTagArray, ppTag, &pCxt->msgBuf);
-      if(code != TSDB_CODE_SUCCESS){
+      if (code != TSDB_CODE_SUCCESS) {
         goto end;
       }
-    }else if (pVal->node.resType.type != TSDB_DATA_TYPE_NULL) {
-      void* nodeVal = nodesGetValueFromNode(pVal);
+    } else if (pVal->node.resType.type != TSDB_DATA_TYPE_NULL) {
+      void*   nodeVal = nodesGetValueFromNode(pVal);
       STagVal val = {.cid = pTagSchema->colId, .type = pTagSchema->type};
       if (IS_VAR_DATA_TYPE(pTagSchema->type)) {
         val.pData = varDataVal(nodeVal);
@@ -4287,13 +4298,13 @@ static int32_t buildKVRowForBindTags(STranslateContext* pCxt, SCreateSubTableCla
     }
   }
 
-  if(!isJson) code = tTagNew(pTagArray, 1, false, ppTag);
+  if (!isJson) code = tTagNew(pTagArray, 1, false, ppTag);
 
 end:
-  if(isJson){
+  if (isJson) {
     for (int i = 0; i < taosArrayGetSize(pTagArray); ++i) {
-      STagVal *p = (STagVal *)taosArrayGet(pTagArray, i);
-      if(IS_VAR_DATA_TYPE(p->type)){
+      STagVal* p = (STagVal*)taosArrayGet(pTagArray, i);
+      if (IS_VAR_DATA_TYPE(p->type)) {
         taosMemoryFree(p->pData);
       }
     }
@@ -4338,11 +4349,11 @@ static int32_t buildKVRowForAllTags(STranslateContext* pCxt, SCreateSubTableClau
 
       isJson = true;
       code = parseJsontoTagData(pVal->literal, pTagArray, ppTag, &pCxt->msgBuf);
-      if(code != TSDB_CODE_SUCCESS){
+      if (code != TSDB_CODE_SUCCESS) {
         goto end;
       }
-    }else if (pVal->node.resType.type != TSDB_DATA_TYPE_NULL) {
-      char* tmpVal = nodesGetValueFromNode(pVal);
+    } else if (pVal->node.resType.type != TSDB_DATA_TYPE_NULL) {
+      char*   tmpVal = nodesGetValueFromNode(pVal);
       STagVal val = {.cid = pTagSchema->colId, .type = pTagSchema->type};
       if (IS_VAR_DATA_TYPE(pTagSchema->type)) {
         val.pData = varDataVal(tmpVal);
@@ -4354,13 +4365,13 @@ static int32_t buildKVRowForAllTags(STranslateContext* pCxt, SCreateSubTableClau
     }
     ++index;
   }
-  if(!isJson) code = tTagNew(pTagArray, 1, false, ppTag);
+  if (!isJson) code = tTagNew(pTagArray, 1, false, ppTag);
 
 end:
-  if(isJson){
+  if (isJson) {
     for (int i = 0; i < taosArrayGetSize(pTagArray); ++i) {
-      STagVal *p = (STagVal *)taosArrayGet(pTagArray, i);
-      if(IS_VAR_DATA_TYPE(p->type)){
+      STagVal* p = (STagVal*)taosArrayGet(pTagArray, i);
+      if (IS_VAR_DATA_TYPE(p->type)) {
         taosMemoryFree(p->pData);
       }
     }
@@ -4428,7 +4439,6 @@ static SArray* serializeVgroupsCreateTableBatch(int32_t acctId, SHashObj* pVgrou
 }
 
 static int32_t rewriteCreateMultiTable(STranslateContext* pCxt, SQuery* pQuery) {
-
   SCreateMultiTableStmt* pStmt = (SCreateMultiTableStmt*)pQuery->pRoot;
 
   SHashObj* pVgroupHashmap = taosHashInit(4, taosGetDefaultHashFunction(TSDB_DATA_TYPE_INT), false, HASH_NO_LOCK);
@@ -4439,11 +4449,11 @@ static int32_t rewriteCreateMultiTable(STranslateContext* pCxt, SQuery* pQuery)
   int32_t code = TSDB_CODE_SUCCESS;
   SNode*  pNode;
   FOREACH(pNode, pStmt->pSubTables) {
-    if(pCxt->pParseCxt->schemalessType == 0 &&
-        (code = isNotSchemalessDb(pCxt->pParseCxt, ((SCreateSubTableClause*)pNode)->dbName)) != TSDB_CODE_SUCCESS){
-      return code;
+    SCreateSubTableClause* pClause = (SCreateSubTableClause*)pNode;
+    code = checkSchemalessDb(pCxt, pClause->dbName);
+    if (TSDB_CODE_SUCCESS == code) {
+      code = rewriteCreateSubTable(pCxt, pClause, pVgroupHashmap);
     }
-    code = rewriteCreateSubTable(pCxt, (SCreateSubTableClause*)pNode, pVgroupHashmap);
     if (TSDB_CODE_SUCCESS != code) {
       taosHashCleanup(pVgroupHashmap);
       return code;
@@ -4633,27 +4643,27 @@ static int32_t buildUpdateTagValReq(STranslateContext* pCxt, SAlterTableStmt* pS
         strlen(pStmt->pVal->literal) > (TSDB_MAX_JSON_TAG_LEN - VARSTR_HEADER_SIZE) / TSDB_NCHAR_SIZE) {
       return buildSyntaxErrMsg(&pCxt->msgBuf, "json string too long than 4095", pStmt->pVal->literal);
     }
-    SArray *pTagVals = taosArrayInit(1, sizeof(STagVal));
+    SArray* pTagVals = taosArrayInit(1, sizeof(STagVal));
     int32_t code = TSDB_CODE_SUCCESS;
-    STag* pTag = NULL;
-    do{
+    STag*   pTag = NULL;
+    do {
       code = parseJsontoTagData(pStmt->pVal->literal, pTagVals, &pTag, &pCxt->msgBuf);
       if (TSDB_CODE_SUCCESS != code) {
         break;
       }
-    }while(0);
+    } while (0);
     for (int i = 0; i < taosArrayGetSize(pTagVals); ++i) {
-      STagVal *p = (STagVal *)taosArrayGet(pTagVals, i);
-      if(IS_VAR_DATA_TYPE(p->type)){
+      STagVal* p = (STagVal*)taosArrayGet(pTagVals, i);
+      if (IS_VAR_DATA_TYPE(p->type)) {
         taosMemoryFree(p->pData);
       }
     }
     taosArrayDestroy(pTagVals);
-    if (code != TSDB_CODE_SUCCESS){
+    if (code != TSDB_CODE_SUCCESS) {
       return code;
     }
     pReq->nTagVal = pTag->len;
-    pReq->pTagVal = (uint8_t *)pTag;
+    pReq->pTagVal = (uint8_t*)pTag;
     pStmt->pVal->datum.p = (char*)pTag;  // for free
   } else {
     pReq->nTagVal = pStmt->pVal->node.resType.bytes;
@@ -4854,13 +4864,8 @@ static int32_t buildModifyVnodeArray(STranslateContext* pCxt, SAlterTableStmt* p
 
 static int32_t rewriteAlterTable(STranslateContext* pCxt, SQuery* pQuery) {
   SAlterTableStmt* pStmt = (SAlterTableStmt*)pQuery->pRoot;
-  int32_t     code = TSDB_CODE_SUCCESS;
-  if(pCxt->pParseCxt->schemalessType == 0 &&
-      (code = isNotSchemalessDb(pCxt->pParseCxt, pStmt->dbName)) != TSDB_CODE_SUCCESS){
-    return code;
-  }
-
-  STableMeta* pTableMeta = NULL;
+  int32_t          code = checkSchemalessDb(pCxt, pStmt->dbName);
+  STableMeta*      pTableMeta = NULL;
   code = getTableMeta(pCxt, pStmt->dbName, pStmt->tableName, &pTableMeta);
   if (TSDB_CODE_SUCCESS != code) {
     return code;
diff --git a/source/libs/parser/src/parUtil.c b/source/libs/parser/src/parUtil.c
index 0a1915d6c2fc5c1c776f6e991a2e39ee6d8a9aa3..4896b646864aa4b5f553fcc34ad166124dfdb642 100644
--- a/source/libs/parser/src/parUtil.c
+++ b/source/libs/parser/src/parUtil.c
@@ -322,11 +322,11 @@ static bool isValidateTag(char* input) {
   return true;
 }
 
-int32_t parseJsontoTagData(const char* json, SArray* pTagVals, STag **ppTag, SMsgBuf* pMsgBuf) {
+int32_t parseJsontoTagData(const char* json, SArray* pTagVals, STag** ppTag, SMsgBuf* pMsgBuf) {
   int32_t   retCode = TSDB_CODE_SUCCESS;
-  cJSON* root = NULL;
+  cJSON*    root = NULL;
   SHashObj* keyHash = NULL;
-  int32_t size = 0;
+  int32_t   size = 0;
   // set json NULL data
   if (!json || strtrim((char*)json) == 0 || strcasecmp(json, TSDB_DATA_NULL_STR_L) == 0) {
     retCode = TSDB_CODE_SUCCESS;
@@ -371,7 +371,8 @@ int32_t parseJsontoTagData(const char* json, SArray* pTagVals, STag **ppTag, SMs
     }
     STagVal val = {0};
     val.pKey = jsonKey;
-    taosHashPut(keyHash, jsonKey, keyLen, &keyLen, CHAR_BYTES);  // add key to hash to remove dumplicate, value is useless
+    taosHashPut(keyHash, jsonKey, keyLen, &keyLen,
+                CHAR_BYTES);  // add key to hash to remove dumplicate, value is useless
 
     if (item->type == cJSON_String) {  // add json value  format: type|data
       char*   jsonValue = item->valuestring;
@@ -382,8 +383,7 @@ int32_t parseJsontoTagData(const char* json, SArray* pTagVals, STag **ppTag, SMs
         goto end;
       }
       val.type = TSDB_DATA_TYPE_NCHAR;
-      if (valLen > 0 && !taosMbsToUcs4(jsonValue, valLen, (TdUcs4*)tmp,
-                                       (int32_t)(valLen * TSDB_NCHAR_SIZE), &valLen)) {
+      if (valLen > 0 && !taosMbsToUcs4(jsonValue, valLen, (TdUcs4*)tmp, (int32_t)(valLen * TSDB_NCHAR_SIZE), &valLen)) {
         uError("charset:%s to %s. val:%s, errno:%s, convert failed.", DEFAULT_UNICODE_ENCODEC, tsCharset, jsonValue,
                strerror(errno));
         retCode = buildSyntaxErrMsg(pMsgBuf, "charset convert json error", jsonValue);
@@ -413,7 +413,7 @@ int32_t parseJsontoTagData(const char* json, SArray* pTagVals, STag **ppTag, SMs
 
 end:
   taosHashCleanup(keyHash);
-  if(retCode == TSDB_CODE_SUCCESS){
+  if (retCode == TSDB_CODE_SUCCESS) {
     tTagNew(pTagVals, 1, true, ppTag);
   }
   cJSON_Delete(root);
@@ -679,6 +679,7 @@ int32_t getTableMetaFromCache(SParseMetaCache* pMetaCache, const SName* pName, S
   tNameExtractFullName(pName, fullName);
   STableMeta** pRes = taosHashGet(pMetaCache->pTableMeta, fullName, strlen(fullName));
   if (NULL == pRes || NULL == *pRes) {
+    parserError("getTableMetaFromCache error: %s", fullName);
     return TSDB_CODE_PAR_INTERNAL_ERROR;
   }
   *pMeta = tableMetaDup(*pRes);
@@ -707,6 +708,7 @@ int32_t reserveDbVgInfoInCache(int32_t acctId, const char* pDb, SParseMetaCache*
 int32_t getDbVgInfoFromCache(SParseMetaCache* pMetaCache, const char* pDbFName, SArray** pVgInfo) {
   SArray** pRes = taosHashGet(pMetaCache->pDbVgroup, pDbFName, strlen(pDbFName));
   if (NULL == pRes) {
+    parserError("getDbVgInfoFromCache error: %s", pDbFName);
     return TSDB_CODE_PAR_INTERNAL_ERROR;
   }
   // *pRes is null, which is a legal value, indicating that the user DB has not been created
@@ -734,6 +736,7 @@ int32_t getTableVgroupFromCache(SParseMetaCache* pMetaCache, const SName* pName,
   tNameExtractFullName(pName, fullName);
   SVgroupInfo** pRes = taosHashGet(pMetaCache->pTableVgroup, fullName, strlen(fullName));
   if (NULL == pRes || NULL == *pRes) {
+    parserError("getTableVgroupFromCache error: %s", fullName);
     return TSDB_CODE_PAR_INTERNAL_ERROR;
   }
   memcpy(pVgroup, *pRes, sizeof(SVgroupInfo));
@@ -748,6 +751,7 @@ int32_t getDbVgVersionFromCache(SParseMetaCache* pMetaCache, const char* pDbFNam
                                 int32_t* pTableNum) {
   SDbInfo** pRes = taosHashGet(pMetaCache->pDbCfg, pDbFName, strlen(pDbFName));
   if (NULL == pRes || NULL == *pRes) {
+    parserError("getDbVgVersionFromCache error: %s", pDbFName);
     return TSDB_CODE_PAR_INTERNAL_ERROR;
   }
   *pVersion = (*pRes)->vgVer;
@@ -763,6 +767,7 @@ int32_t reserveDbCfgInCache(int32_t acctId, const char* pDb, SParseMetaCache* pM
 int32_t getDbCfgFromCache(SParseMetaCache* pMetaCache, const char* pDbFName, SDbCfgInfo* pInfo) {
   SDbCfgInfo** pRes = taosHashGet(pMetaCache->pDbCfg, pDbFName, strlen(pDbFName));
   if (NULL == pRes || NULL == *pRes) {
+    parserError("getDbCfgFromCache error: %s", pDbFName);
     return TSDB_CODE_PAR_INTERNAL_ERROR;
   }
   memcpy(pInfo, *pRes, sizeof(SDbCfgInfo));
@@ -801,6 +806,7 @@ int32_t getUserAuthFromCache(SParseMetaCache* pMetaCache, const char* pUser, con
   int32_t len = userAuthToStringExt(pUser, pDbFName, type, key);
   bool*   pRes = taosHashGet(pMetaCache->pUserAuth, key, len);
   if (NULL == pRes) {
+    parserError("getUserAuthFromCache error: %s, %s, %d", pUser, pDbFName, type);
     return TSDB_CODE_PAR_INTERNAL_ERROR;
   }
   *pPass = *pRes;
@@ -820,6 +826,7 @@ int32_t reserveUdfInCache(const char* pFunc, SParseMetaCache* pMetaCache) {
 int32_t getUdfInfoFromCache(SParseMetaCache* pMetaCache, const char* pFunc, SFuncInfo* pInfo) {
   SFuncInfo** pRes = taosHashGet(pMetaCache->pUdf, pFunc, strlen(pFunc));
   if (NULL == pRes || NULL == *pRes) {
+    parserError("getUdfInfoFromCache error: %s", pFunc);
     return TSDB_CODE_PAR_INTERNAL_ERROR;
   }
   memcpy(pInfo, *pRes, sizeof(SFuncInfo));
diff --git a/source/libs/parser/test/parInsertTest.cpp b/source/libs/parser/test/parInsertTest.cpp
index 4d313fca766e8ab8f8d6ba404f7faf2fe833e9e6..eae83e222385f8e7a7af1be56bb3647b3e806358 100644
--- a/source/libs/parser/test/parInsertTest.cpp
+++ b/source/libs/parser/test/parInsertTest.cpp
@@ -59,6 +59,7 @@ class InsertTest : public Test {
   }
 
   int32_t runAsync() {
+    cxt_.async = true;
     code_ = parseInsertSyntax(&cxt_, &res_);
     if (code_ != TSDB_CODE_SUCCESS) {
       cout << "parseInsertSyntax code:" << toString(code_) << ", msg:" << errMagBuf_ << endl;