feat: add new api

include/client/taos.h

@@ -128,7 +128,6 @@ typedef struct setConfRet {
 
 DLL_EXPORT void       taos_cleanup(void);
 DLL_EXPORT int        taos_options(TSDB_OPTION option, const void *arg, ...);
-DLL_EXPORT setConfRet taos_set_config(const char *config);
 DLL_EXPORT int        taos_init(void);
 DLL_EXPORT TAOS      *taos_connect(const char *ip, const char *user, const char *pass, const char *db, uint16_t port);
 DLL_EXPORT TAOS *taos_connect_auth(const char *ip, const char *user, const char *auth, const char *db, uint16_t port);

include/common/tglobal.h

@@ -149,6 +149,7 @@ void    taosCfgDynamicOptions(const char *option, const char *value);
 void    taosAddDataDir(int32_t index, char *v1, int32_t level, int32_t primary);
 
 struct SConfig *taosGetCfg();
+int32_t taosSetCfg(SConfig *pCfg, char* name);
 
 #ifdef __cplusplus
 }

include/common/tname.h

@@ -57,6 +57,8 @@ void tNameAssign(SName* dst, const SName* src);
 
 int32_t tNameSetDbName(SName* dst, int32_t acctId, const char* dbName, size_t nameLen);
 
+int32_t tNameAddTbName(SName* dst, const char* tbName, size_t nameLen);
+
 int32_t tNameFromString(SName* dst, const char* str, uint32_t type);
 
 int32_t tNameSetAcctId(SName* dst, int32_t acctId);

include/libs/qcom/query.h

@@ -266,19 +266,19 @@ extern int32_t (*queryProcessMsgRsp[TDMT_MAX])(void* output, char* msg, int32_t
 #define qDebug(...)                                                                     \
   do {                                                                                  \
     if (qDebugFlag & DEBUG_DEBUG) {                                                     \
-      taosPrintLog("QRY ", DEBUG_DEBUG, tsLogEmbedded ? 255 : qDebugFlag, __VA_ARGS__); \
+      taosPrintLog("QRY ", DEBUG_DEBUG, qDebugFlag, __VA_ARGS__);                       \
     }                                                                                   \
   } while (0)
 #define qTrace(...)                                                                     \
   do {                                                                                  \
     if (qDebugFlag & DEBUG_TRACE) {                                                     \
-      taosPrintLog("QRY ", DEBUG_TRACE, tsLogEmbedded ? 255 : qDebugFlag, __VA_ARGS__); \
+      taosPrintLog("QRY ", DEBUG_TRACE, qDebugFlag, __VA_ARGS__);                       \
     }                                                                                   \
   } while (0)
 #define qDebugL(...)                                                                           \
   do {                                                                                         \
     if (qDebugFlag & DEBUG_DEBUG) {                                                            \
-      taosPrintLongString("QRY ", DEBUG_DEBUG, tsLogEmbedded ? 255 : qDebugFlag, __VA_ARGS__); \
+      taosPrintLongString("QRY ", DEBUG_DEBUG, qDebugFlag, __VA_ARGS__);                       \
     }                                                                                          \
   } while (0)
 

source/client/inc/clientInt.h

@@ -215,6 +215,7 @@ typedef struct SRequestObj {
   SQueryExecMetric     metric;
   SRequestSendRecvBody body;
   bool                 stableQuery;
+  bool                 validateOnly;
 
   bool     killed;
   uint32_t prevCode;  // previous error code: todo refactor, add update flag for catalog
@@ -235,7 +236,12 @@ int32_t      setQueryResultFromRsp(SReqResultInfo* pResultInfo, const SRetrieveT
                                    bool freeAfterUse);
 void         setResSchemaInfo(SReqResultInfo* pResInfo, const SSchema* pSchema, int32_t numOfCols);
 void         doFreeReqResultInfo(SReqResultInfo* pResInfo);
-SRequestObj* execQuery(STscObj* pTscObj, const char* sql, int sqlLen);
+int32_t      transferTableNameList(const char* tbList, int32_t acctId, char* dbName, SArray** pReq);
+void         syncCatalogFn(SMetaData* pResult, void* param, int32_t code);
+
+SRequestObj* execQuery(STscObj* pTscObj, const char* sql, int sqlLen, bool validateOnly);
+TAOS_RES *taosQueryImpl(TAOS *taos, const char *sql, bool validateOnly);
+void      taosAsyncQueryImpl(TAOS *taos, const char *sql, __taos_async_fn_t fp, void *param, bool validateOnly);
 
 static FORCE_INLINE SReqResultInfo* tmqGetCurResInfo(TAOS_RES* res) {
   SMqRspObj* msg = (SMqRspObj*)res;
@@ -301,7 +307,7 @@ void processMsgFromServer(void* parent, SRpcMsg* pMsg, SEpSet* pEpSet);
 STscObj* taos_connect_internal(const char* ip, const char* user, const char* pass, const char* auth, const char* db,
                                uint16_t port, int connType);
 
-SRequestObj* launchQuery(STscObj* pTscObj, const char* sql, int sqlLen);
+SRequestObj* launchQuery(STscObj* pTscObj, const char* sql, int sqlLen, bool validateOnly);
 
 int32_t parseSql(SRequestObj* pRequest, bool topicQuery, SQuery** pQuery, SStmtCallback* pStmtCb);
 

source/client/src/clientImpl.c

@@ -237,6 +237,10 @@ static SAppInstInfo* getAppInfo(SRequestObj* pRequest) { return pRequest->pTscOb
 
 void asyncExecLocalCmd(SRequestObj* pRequest, SQuery* pQuery) {
   SRetrieveTableRsp* pRsp = NULL;
+  if (pRequest->validateOnly) {
+    pRequest->body.queryFp(pRequest->body.param, pRequest, 0);
+    return;
+  }
 
   int32_t code = qExecCommand(pQuery->pRoot, &pRsp);
   if (TSDB_CODE_SUCCESS == code && NULL != pRsp) {
@@ -261,6 +265,11 @@ void asyncExecLocalCmd(SRequestObj* pRequest, SQuery* pQuery) {
 }
 
 int32_t asyncExecDdlQuery(SRequestObj* pRequest, SQuery* pQuery) {
+  if (pRequest->validateOnly) {
+    pRequest->body.queryFp(pRequest->body.param, pRequest, 0);
+    return TSDB_CODE_SUCCESS;
+  }
+
   // drop table if exists not_exists_table
   if (NULL == pQuery->pCmdMsg) {
     pRequest->body.queryFp(pRequest->body.param, pRequest, 0);
@@ -276,8 +285,11 @@ int32_t asyncExecDdlQuery(SRequestObj* pRequest, SQuery* pQuery) {
   SMsgSendInfo* pSendMsg = buildMsgInfoImpl(pRequest);
 
   int64_t transporterId = 0;
-  asyncSendMsgToServer(pAppInfo->pTransporter, &pMsgInfo->epSet, &transporterId, pSendMsg);
-  return TSDB_CODE_SUCCESS;
+  int32_t code = asyncSendMsgToServer(pAppInfo->pTransporter, &pMsgInfo->epSet, &transporterId, pSendMsg);
+  if (code) {
+    pRequest->body.queryFp(pRequest->body.param, pRequest, code);
+  }
+  return code;
 }
 
 int compareQueryNodeLoad(const void* elem1, const void* elem2) {
@@ -851,15 +863,19 @@ SRequestObj* launchQueryImpl(SRequestObj* pRequest, SQuery* pQuery, bool keepQue
 
   switch (pQuery->execMode) {
     case QUERY_EXEC_MODE_LOCAL:
-      code = execLocalCmd(pRequest, pQuery);
+      if (!pRequest->validateOnly) {
+        code = execLocalCmd(pRequest, pQuery);
+      }
       break;
     case QUERY_EXEC_MODE_RPC:
-      code = execDdlQuery(pRequest, pQuery);
+      if (!pRequest->validateOnly) {
+        code = execDdlQuery(pRequest, pQuery);
+      }
       break;
     case QUERY_EXEC_MODE_SCHEDULE: {
       SArray* pMnodeList = taosArrayInit(4, sizeof(SQueryNodeLoad));
       code = getPlan(pRequest, pQuery, &pRequest->body.pDag, pMnodeList);
-      if (TSDB_CODE_SUCCESS == code) {
+      if (TSDB_CODE_SUCCESS == code && !pRequest->validateOnly) {
         SArray* pNodeList = NULL;
         buildSyncExecNodeList(pRequest, &pNodeList, pMnodeList);
         
@@ -894,7 +910,7 @@ SRequestObj* launchQueryImpl(SRequestObj* pRequest, SQuery* pQuery, bool keepQue
   return pRequest;
 }
 
-SRequestObj* launchQuery(STscObj* pTscObj, const char* sql, int sqlLen) {
+SRequestObj* launchQuery(STscObj* pTscObj, const char* sql, int sqlLen, bool validateOnly) {
   SRequestObj* pRequest = NULL;
   SQuery*      pQuery = NULL;
 
@@ -904,6 +920,8 @@ SRequestObj* launchQuery(STscObj* pTscObj, const char* sql, int sqlLen) {
     return NULL;
   }
 
+  pRequest->validateOnly = validateOnly;
+
   code = parseSql(pRequest, false, &pQuery, NULL);
   if (code != TSDB_CODE_SUCCESS) {
     pRequest->code = code;
@@ -945,7 +963,7 @@ void launchAsyncQuery(SRequestObj* pRequest, SQuery* pQuery, SMetaData *pResultM
                  pRequest->requestId);
       }
 
-      if (TSDB_CODE_SUCCESS == code) {
+      if (TSDB_CODE_SUCCESS == code && !pRequest->validateOnly) {
         SArray* pNodeList = NULL;
         buildAsyncExecNodeList(pRequest, &pNodeList, pMnodeList, pResultMeta);
         
@@ -962,7 +980,7 @@ void launchAsyncQuery(SRequestObj* pRequest, SQuery* pQuery, SMetaData *pResultM
         code = schedulerAsyncExecJob(&req, &pRequest->body.queryJob);
         taosArrayDestroy(pNodeList);
       } else {
-        tscError("0x%" PRIx64 " failed to create query plan, code:%s 0x%" PRIx64, pRequest->self, tstrerror(code),
+        tscDebug("0x%" PRIx64 " plan not executed, code:%s 0x%" PRIx64, pRequest->self, tstrerror(code),
                  pRequest->requestId);
         pRequest->body.queryFp(pRequest->body.param, pRequest, code);
       }
@@ -1045,14 +1063,14 @@ int32_t removeMeta(STscObj* pTscObj, SArray* tbList) {
   return TSDB_CODE_SUCCESS;
 }
 
-SRequestObj* execQuery(STscObj* pTscObj, const char* sql, int sqlLen) {
+SRequestObj* execQuery(STscObj* pTscObj, const char* sql, int sqlLen, bool validateOnly) {
   SRequestObj* pRequest = NULL;
   int32_t      retryNum = 0;
   int32_t      code = 0;
 
   do {
     destroyRequest(pRequest);
-    pRequest = launchQuery(pTscObj, sql, sqlLen);
+    pRequest = launchQuery(pTscObj, sql, sqlLen, validateOnly);
     if (pRequest == NULL || TSDB_CODE_SUCCESS == pRequest->code || !NEED_CLIENT_HANDLE_ERROR(pRequest->code)) {
       break;
     }
@@ -1819,3 +1837,251 @@ _OVER:
   }
   return code;
 }
+
+int32_t appendTbToReq(SArray* pList, int32_t pos1, int32_t len1, int32_t pos2, int32_t len2, const char* str, int32_t acctId, char* db) {
+  SName name;
+ 
+  if (len1 <= 0) {
+    return -1;
+  }
+
+  const char *dbName = db;
+  const char *tbName = NULL;
+  int32_t dbLen = 0;
+  int32_t tbLen = 0;
+  if (len2 > 0) {
+    dbName = str + pos1;
+    dbLen = len1;
+    tbName = str + pos2;
+    tbLen = len2;
+  } else {
+    dbLen = strlen(db);
+    tbName = str + pos1;
+    tbLen = len1;
+  }
+  
+  if (tNameSetDbName(&name, acctId, dbName, dbLen)) {
+    return -1;
+  }
+
+  if (tNameAddTbName(&name, tbName, tbLen)) {
+    return -1;
+  }
+
+  taosArrayPush(pList, &name);
+
+  return TSDB_CODE_SUCCESS;
+}
+
+int32_t transferTableNameList(const char* tbList, int32_t acctId, char* dbName, SArray** pReq) {
+  *pReq = taosArrayInit(10, sizeof(SName));
+  if (NULL == *pReq) {
+    terrno = TSDB_CODE_OUT_OF_MEMORY;
+    return terrno;
+  }
+  
+  bool inEscape = false;
+  int32_t code = 0;
+  
+  int32_t vIdx = 0;
+  int32_t vPos[2];
+  int32_t vLen[2];
+
+  memset(vPos, -1, sizeof(vPos));
+  memset(vLen, 0, sizeof(vLen));
+  
+  for (int32_t i = 0; ; ++i) {
+    if (0 == *(tbList + i)) {
+      if (vPos[vIdx] >= 0 && vLen[vIdx] <= 0) {
+        vLen[vIdx] = i - vPos[vIdx];
+      }
+
+      code = appendTbToReq(*pReq, vPos[0], vLen[0], vPos[1], vLen[1], tbList, acctId, dbName);
+      if (code) {
+        goto _return;
+      }
+
+      break;
+    }
+    
+    if ('`' == *(tbList + i)) {
+      inEscape = !inEscape;
+      if (!inEscape) {
+        if (vPos[vIdx] >= 0) {
+          vLen[vIdx] = i - vPos[vIdx];
+        } else {
+          goto _return;
+        }
+      }
+
+      continue;
+    }
+
+    if (inEscape) {
+      if (vPos[vIdx] < 0) {
+        vPos[vIdx] = i;
+      }
+      continue;
+    }
+
+    if ('.' == *(tbList + i)) {
+      if (vPos[vIdx] < 0) {
+        goto _return;
+      }
+      if (vLen[vIdx] <= 0) {
+        vLen[vIdx] = i - vPos[vIdx];
+      }
+      vIdx++;
+      if (vIdx >= 2) {
+        goto _return;
+      }
+      continue;
+    }
+
+    if (',' == *(tbList + i)) {
+      if (vPos[vIdx] < 0) {
+        goto _return;
+      }
+      if (vLen[vIdx] <= 0) {
+        vLen[vIdx] = i - vPos[vIdx];
+      }
+
+      code = appendTbToReq(*pReq, vPos[0], vLen[0], vPos[1], vLen[1], tbList, acctId, dbName);
+      if (code) {
+        goto _return;
+      }
+      
+      memset(vPos, -1, sizeof(vPos));
+      memset(vLen, 0, sizeof(vLen));
+      vIdx = 0;
+      continue;
+    }
+
+    if (' ' == *(tbList + i) || '\r' == *(tbList + i) || '\t' == *(tbList + i) || '\n' == *(tbList + i)) {
+      if (vPos[vIdx] >= 0 && vLen[vIdx] <= 0) {
+        vLen[vIdx] = i - vPos[vIdx];
+      }
+      continue;
+    }
+
+    if (('a' <= *(tbList + i) && 'z' >= *(tbList + i)) || 
+        ('A' <= *(tbList + i) && 'Z' >= *(tbList + i)) ||
+        ('0' <= *(tbList + i) && '9' >= *(tbList + i))) {
+      if (vLen[vIdx] > 0) {
+        goto _return;
+      }
+      if (vPos[vIdx] < 0) {
+        vPos[vIdx] = i;
+      }
+      continue;
+    }
+
+    goto _return;
+  }
+
+  return TSDB_CODE_SUCCESS;
+
+_return:
+
+  terrno = TSDB_CODE_TSC_INVALID_OPERATION;
+
+  taosArrayDestroy(*pReq);
+  *pReq = NULL;
+  
+  return terrno;
+}
+
+void syncCatalogFn(SMetaData* pResult, void* param, int32_t code) {
+  SSyncQueryParam *pParam = param;
+  pParam->pRequest->code = code;
+
+  tsem_post(&pParam->sem);
+}
+
+
+void syncQueryFn(void *param, void *res, int32_t code) {
+  SSyncQueryParam *pParam = param;
+  pParam->pRequest = res;
+  pParam->pRequest->code = code;
+
+  tsem_post(&pParam->sem);
+}
+
+void taosAsyncQueryImpl(TAOS *taos, const char *sql, __taos_async_fn_t fp, void *param, bool validateOnly) {
+  STscObj *pTscObj = acquireTscObj(*(int64_t *)taos);
+  if (pTscObj == NULL || sql == NULL || NULL == fp) {
+    terrno = TSDB_CODE_INVALID_PARA;
+    if (pTscObj) {
+      releaseTscObj(*(int64_t *)taos);
+    } else {
+      terrno = TSDB_CODE_TSC_DISCONNECTED;
+    }
+    fp(param, NULL, terrno);
+    return;
+  }
+
+  size_t sqlLen = strlen(sql);
+  if (sqlLen > (size_t)TSDB_MAX_ALLOWED_SQL_LEN) {
+    tscError("sql string exceeds max length:%d", TSDB_MAX_ALLOWED_SQL_LEN);
+    terrno = TSDB_CODE_TSC_EXCEED_SQL_LIMIT;
+
+    fp(param, NULL, terrno);
+    return;
+  }
+
+  SRequestObj *pRequest = NULL;
+  int32_t      code = buildRequest(pTscObj, sql, sqlLen, &pRequest);
+  if (code != TSDB_CODE_SUCCESS) {
+    terrno = code;
+    fp(param, NULL, terrno);
+    return;
+  }
+
+  pRequest->validateOnly = validateOnly;
+  pRequest->body.queryFp = fp;
+  pRequest->body.param = param;
+  doAsyncQuery(pRequest, false);
+}
+
+
+TAOS_RES *taosQueryImpl(TAOS *taos, const char *sql, bool validateOnly) {
+  if (NULL == taos) {
+    terrno = TSDB_CODE_TSC_DISCONNECTED;
+    return NULL;
+  }
+
+  STscObj *pTscObj = acquireTscObj(*(int64_t *)taos);
+  if (pTscObj == NULL || sql == NULL) {
+    terrno = TSDB_CODE_TSC_DISCONNECTED;
+    return NULL;
+  }
+
+#if SYNC_ON_TOP_OF_ASYNC
+  SSyncQueryParam *param = taosMemoryCalloc(1, sizeof(SSyncQueryParam));
+  tsem_init(&param->sem, 0, 0);
+
+  taosAsyncQueryImpl(taos, sql, syncQueryFn, param, validateOnly);
+  tsem_wait(&param->sem);
+
+  releaseTscObj(*(int64_t *)taos);
+
+  return param->pRequest;
+#else
+  size_t sqlLen = strlen(sql);
+  if (sqlLen > (size_t)TSDB_MAX_ALLOWED_SQL_LEN) {
+    releaseTscObj(*(int64_t *)taos);
+    tscError("sql string exceeds max length:%d", TSDB_MAX_ALLOWED_SQL_LEN);
+    terrno = TSDB_CODE_TSC_EXCEED_SQL_LIMIT;
+    return NULL;
+  }
+
+  TAOS_RES *pRes = execQuery(pTscObj, sql, sqlLen, validateOnly);
+
+  releaseTscObj(*(int64_t *)taos);
+
+  return pRes;
+#endif
+}
+
+
+

source/client/src/clientMain.c

@@ -81,12 +81,6 @@ void taos_cleanup(void) {
   taosCloseLog();
 }
 
-setConfRet taos_set_config(const char *config) {
-  // TODO
-  setConfRet ret = {SET_CONF_RET_SUCC, {0}};
-  return ret;
-}
-
 TAOS *taos_connect(const char *ip, const char *user, const char *pass, const char *db, uint16_t port) {
   tscDebug("try to connect to %s:%u, user:%s db:%s", ip, port, user, db);
   if (user == NULL) {
@@ -205,51 +199,9 @@ TAOS_FIELD *taos_fetch_fields(TAOS_RES *res) {
   return pResInfo->userFields;
 }
 
-static void syncQueryFn(void *param, void *res, int32_t code) {
-  SSyncQueryParam *pParam = param;
-  pParam->pRequest = res;
-  pParam->pRequest->code = code;
-
-  tsem_post(&pParam->sem);
-}
 
 TAOS_RES *taos_query(TAOS *taos, const char *sql) {
-  if (NULL == taos) {
-    terrno = TSDB_CODE_TSC_DISCONNECTED;
-    return NULL;
-  }
-
-  STscObj *pTscObj = acquireTscObj(*(int64_t *)taos);
-  if (pTscObj == NULL || sql == NULL) {
-    terrno = TSDB_CODE_TSC_DISCONNECTED;
-    return NULL;
-  }
-
-#if SYNC_ON_TOP_OF_ASYNC
-  SSyncQueryParam *param = taosMemoryCalloc(1, sizeof(SSyncQueryParam));
-  tsem_init(&param->sem, 0, 0);
-
-  taos_query_a(taos, sql, syncQueryFn, param);
-  tsem_wait(&param->sem);
-
-  releaseTscObj(*(int64_t *)taos);
-
-  return param->pRequest;
-#else
-  size_t sqlLen = strlen(sql);
-  if (sqlLen > (size_t)TSDB_MAX_ALLOWED_SQL_LEN) {
-    releaseTscObj(*(int64_t *)taos);
-    tscError("sql string exceeds max length:%d", TSDB_MAX_ALLOWED_SQL_LEN);
-    terrno = TSDB_CODE_TSC_EXCEED_SQL_LIMIT;
-    return NULL;
-  }
-
-  TAOS_RES *pRes = execQuery(pTscObj, sql, sqlLen);
-
-  releaseTscObj(*(int64_t *)taos);
-
-  return pRes;
-#endif
+  return taosQueryImpl(taos, sql, false);
 }
 
 TAOS_ROW taos_fetch_row(TAOS_RES *res) {
@@ -639,7 +591,14 @@ int *taos_get_column_data_offset(TAOS_RES *res, int columnIndex) {
   return pResInfo->pCol[columnIndex].offset;
 }
 
-int taos_validate_sql(TAOS *taos, const char *sql) { return true; }
+int taos_validate_sql(TAOS *taos, const char *sql) { 
+  TAOS_RES* pObj = taosQueryImpl(taos, sql, true);
+
+  int code = taos_errno(pObj);
+  
+  taos_free_result(pObj);
+  return code;
+}
 
 void taos_reset_current_db(TAOS *taos) {
   STscObj *pTscObj = acquireTscObj(*(int64_t *)taos);
@@ -729,38 +688,7 @@ void retrieveMetaCallback(SMetaData *pResultMeta, void *param, int32_t code) {
 }
 
 void taos_query_a(TAOS *taos, const char *sql, __taos_async_fn_t fp, void *param) {
-  STscObj *pTscObj = acquireTscObj(*(int64_t *)taos);
-  if (pTscObj == NULL || sql == NULL || NULL == fp) {
-    terrno = TSDB_CODE_INVALID_PARA;
-    if (pTscObj) {
-      releaseTscObj(*(int64_t *)taos);
-    } else {
-      terrno = TSDB_CODE_TSC_DISCONNECTED;
-    }
-    fp(param, NULL, terrno);
-    return;
-  }
-
-  size_t sqlLen = strlen(sql);
-  if (sqlLen > (size_t)TSDB_MAX_ALLOWED_SQL_LEN) {
-    tscError("sql string exceeds max length:%d", TSDB_MAX_ALLOWED_SQL_LEN);
-    terrno = TSDB_CODE_TSC_EXCEED_SQL_LIMIT;
-
-    fp(param, NULL, terrno);
-    return;
-  }
-
-  SRequestObj *pRequest = NULL;
-  int32_t      code = buildRequest(pTscObj, sql, sqlLen, &pRequest);
-  if (code != TSDB_CODE_SUCCESS) {
-    terrno = code;
-    fp(param, NULL, terrno);
-    return;
-  }
-
-  pRequest->body.queryFp = fp;
-  pRequest->body.param = param;
-  doAsyncQuery(pRequest, false);
+  taosAsyncQueryImpl(taos, sql, fp, param, false);
 }
 
 int32_t createParseContext(const SRequestObj *pRequest, SParseContext **pCxt) {
@@ -953,10 +881,75 @@ void taos_unsubscribe(TAOS_SUB *tsub, int keepProgress) {
 }
 
 int taos_load_table_info(TAOS *taos, const char *tableNameList) {
-  // TODO
-  return -1;
+  const int32_t MAX_TABLE_NAME_LENGTH = 12 * 1024 * 1024;  // 12MB list
+  int32_t code = 0;
+  SRequestObj *pRequest = NULL;
+  SCatalogReq catalogReq = {0};
+  
+  if (NULL == tableNameList) {
+    return TSDB_CODE_SUCCESS;
+  }
+
+  int32_t length = (int32_t)strlen(tableNameList);
+  if (0 == length) {
+    return TSDB_CODE_SUCCESS;
+  } else if (length > MAX_TABLE_NAME_LENGTH) {
+    tscError("tableNameList too long, length:%d, maximum allowed:%d", length, MAX_TABLE_NAME_LENGTH);
+    return TSDB_CODE_TSC_INVALID_OPERATION;
+  }
+
+  STscObj *pTscObj = acquireTscObj(*(int64_t *)taos);
+  if (pTscObj == NULL) {
+    terrno = TSDB_CODE_TSC_DISCONNECTED;
+    return terrno;
+  }
+
+  code = transferTableNameList(tableNameList, pTscObj->acctId, pTscObj->db, &catalogReq.pTableMeta);
+  if (code) {
+    goto _return;
+  }
+
+  SCatalog* pCtg = NULL;
+  code = catalogGetHandle(pTscObj->pAppInfo->clusterId, &pCtg);
+  if (code != TSDB_CODE_SUCCESS) {
+    goto _return;
+  }
+
+  char* sql = "taos_load_table_info";
+  code = buildRequest(pTscObj, sql, strlen(sql), &pRequest);
+  if (code != TSDB_CODE_SUCCESS) {
+    terrno = code;
+    goto _return;
+  }
+  
+  SSyncQueryParam param = {0};
+  tsem_init(&param.sem, 0, 0);
+  param.pRequest = pRequest;
+
+  SRequestConnInfo conn = {.pTrans = pTscObj->pAppInfo->pTransporter,
+                           .requestId = pRequest->requestId,
+                           .requestObjRefId = pRequest->self};
+
+  conn.mgmtEps = getEpSet_s(&pTscObj->pAppInfo->mgmtEp);
+
+  code = catalogAsyncGetAllMeta(pCtg, &conn, pRequest->requestId, &catalogReq, syncCatalogFn, &param, NULL);
+  if (code) {
+    goto _return;
+  }
+
+  tsem_wait(&param.sem);
+
+_return:
+
+  taosArrayDestroy(catalogReq.pTableMeta);
+  destroyRequest(pRequest);
+
+  releaseTscObj(*(int64_t *)taos);
+
+  return code;
 }
 
+
 TAOS_STMT *taos_stmt_init(TAOS *taos) {
   STscObj *pObj = acquireTscObj(*(int64_t *)taos);
   if (NULL == pObj) {

source/common/src/tglobal.c

@@ -629,6 +629,373 @@ static int32_t taosSetServerCfg(SConfig *pCfg) {
   return 0;
 }
 
+int32_t taosSetCfg(SConfig *pCfg, char* name) {
+  int32_t len = strlen(name);
+  char    lowcaseName[CFG_NAME_MAX_LEN + 1] = {0};
+  strntolower(lowcaseName, name, TMIN(CFG_NAME_MAX_LEN, len));
+
+  switch (lowcaseName[0]) {
+    case 'a': {
+      if (strcasecmp("asyncLog", name) == 0) {
+        tsAsyncLog = cfgGetItem(pCfg, "asyncLog")->bval;
+      }
+      break;
+    }
+    case 'b': {
+      if (strcasecmp("bnodeShmSize", name) == 0) {
+        tsBnodeShmSize = cfgGetItem(pCfg, "bnodeShmSize")->i32;
+      }
+      break;
+    }
+    case 'c': {
+      if (strcasecmp("charset", name) == 0) {
+        const char *locale = cfgGetItem(pCfg, "locale")->str;
+        const char *charset = cfgGetItem(pCfg, "charset")->str;
+        taosSetSystemLocale(locale, charset);
+        osSetSystemLocale(locale, charset);
+      } else if (strcasecmp("compressMsgSize", name) == 0) {
+        tsCompressMsgSize = cfgGetItem(pCfg, "compressMsgSize")->i32;
+      } else if (strcasecmp("compressColData", name) == 0) {
+        tsCompressColData = cfgGetItem(pCfg, "compressColData")->i32;
+      } else if (strcasecmp("countAlwaysReturnValue", name) == 0) {
+        tsCountAlwaysReturnValue = cfgGetItem(pCfg, "countAlwaysReturnValue")->i32;
+      } else if (strcasecmp("cDebugFlag", name) == 0) {      
+        cDebugFlag = cfgGetItem(pCfg, "cDebugFlag")->i32;
+      }
+      break;
+    }
+    case 'd': {
+      if (strcasecmp("deadLockKillQuery", name) == 0) {
+        tsDeadLockKillQuery = cfgGetItem(pCfg, "deadLockKillQuery")->i32;
+      } else if (strcasecmp("dDebugFlag", name) == 0) {
+        dDebugFlag = cfgGetItem(pCfg, "dDebugFlag")->i32;
+      }
+      break;
+    }
+    case 'e': {
+      if (strcasecmp("enableCoreFile", name) == 0) {
+        bool enableCore = cfgGetItem(pCfg, "enableCoreFile")->bval;
+        taosSetConsoleEcho(enableCore);
+      }
+      break;
+    }
+    case 'f': {
+      if (strcasecmp("fqdn", name) == 0) {
+        tstrncpy(tsLocalFqdn, cfgGetItem(pCfg, "fqdn")->str, TSDB_FQDN_LEN);
+        tsServerPort = (uint16_t)cfgGetItem(pCfg, "serverPort")->i32;
+        snprintf(tsLocalEp, sizeof(tsLocalEp), "%s:%u", tsLocalFqdn, tsServerPort);
+        
+        char defaultFirstEp[TSDB_EP_LEN] = {0};
+        snprintf(defaultFirstEp, TSDB_EP_LEN, "%s:%u", tsLocalFqdn, tsServerPort);
+        
+        SConfigItem *pFirstEpItem = cfgGetItem(pCfg, "firstEp");
+        SEp          firstEp = {0};
+        taosGetFqdnPortFromEp(strlen(pFirstEpItem->str) == 0 ? defaultFirstEp : pFirstEpItem->str, &firstEp);
+        snprintf(tsFirst, sizeof(tsFirst), "%s:%u", firstEp.fqdn, firstEp.port);
+        cfgSetItem(pCfg, "firstEp", tsFirst, pFirstEpItem->stype);
+      } else if (strcasecmp("firstEp", name) == 0) {
+        tstrncpy(tsLocalFqdn, cfgGetItem(pCfg, "fqdn")->str, TSDB_FQDN_LEN);
+        tsServerPort = (uint16_t)cfgGetItem(pCfg, "serverPort")->i32;
+        snprintf(tsLocalEp, sizeof(tsLocalEp), "%s:%u", tsLocalFqdn, tsServerPort);
+        
+        char defaultFirstEp[TSDB_EP_LEN] = {0};
+        snprintf(defaultFirstEp, TSDB_EP_LEN, "%s:%u", tsLocalFqdn, tsServerPort);
+        
+        SConfigItem *pFirstEpItem = cfgGetItem(pCfg, "firstEp");
+        SEp          firstEp = {0};
+        taosGetFqdnPortFromEp(strlen(pFirstEpItem->str) == 0 ? defaultFirstEp : pFirstEpItem->str, &firstEp);
+        snprintf(tsFirst, sizeof(tsFirst), "%s:%u", firstEp.fqdn, firstEp.port);
+        cfgSetItem(pCfg, "firstEp", tsFirst, pFirstEpItem->stype);
+      } else if (strcasecmp("fsDebugFlag", name) == 0) {
+        fsDebugFlag = cfgGetItem(pCfg, "fsDebugFlag")->i32;
+      } else if (strcasecmp("fnDebugFlag", name) == 0) {
+        fnDebugFlag = cfgGetItem(pCfg, "fnDebugFlag")->i32;
+      }
+      break;
+    }
+    case 'i': {
+      if (strcasecmp("idxDebugFlag", name) == 0) {
+        idxDebugFlag = cfgGetItem(pCfg, "idxDebugFlag")->i32;
+      }
+      break;
+    }
+    case 'j': {
+      if (strcasecmp("jniDebugFlag", name) == 0) {
+        jniDebugFlag = cfgGetItem(pCfg, "jniDebugFlag")->i32;
+      }
+      break;
+    }
+    case 'k': {
+      if (strcasecmp("keepColumnName", name) == 0) {
+        tsKeepOriginalColumnName = cfgGetItem(pCfg, "keepColumnName")->bval;
+      }
+      break;
+    }
+    case 'l': {
+      if (strcasecmp("locale", name) == 0) {
+        const char *locale = cfgGetItem(pCfg, "locale")->str;
+        const char *charset = cfgGetItem(pCfg, "charset")->str;
+        taosSetSystemLocale(locale, charset);
+        osSetSystemLocale(locale, charset);
+      } else if (strcasecmp("logDir", name) == 0) {
+        tstrncpy(tsLogDir, cfgGetItem(pCfg, "logDir")->str, PATH_MAX);
+        taosExpandDir(tsLogDir, tsLogDir, PATH_MAX);
+      } else if (strcasecmp("logKeepDays", name) == 0) {
+        tsLogKeepDays = cfgGetItem(pCfg, "logKeepDays")->i32;
+      }
+      break;
+    }
+    case 'm': {
+      switch (lowcaseName[1]) {
+        case 'a': {
+          if (strcasecmp("maxShellConns", name) == 0) {
+            tsMaxShellConns = cfgGetItem(pCfg, "maxShellConns")->i32;
+          } else if (strcasecmp("maxNumOfDistinctRes", name) == 0) {
+            tsMaxNumOfDistinctResults = cfgGetItem(pCfg, "maxNumOfDistinctRes")->i32;
+          } else if (strcasecmp("maxStreamCompDelay", name) == 0) {
+            tsMaxStreamComputDelay = cfgGetItem(pCfg, "maxStreamCompDelay")->i32;
+          } else if (strcasecmp("maxFirstStreamCompDelay", name) == 0) {
+            tsStreamCompStartDelay = cfgGetItem(pCfg, "maxFirstStreamCompDelay")->i32;
+          }
+          break;
+        }
+        case 'd': {
+          if (strcasecmp("mDebugFlag", name) == 0) {
+            mDebugFlag = cfgGetItem(pCfg, "mDebugFlag")->i32;
+          }
+          break;
+        }
+        case 'i': {
+          if (strcasecmp("minimalTempDirGB", name) == 0) {
+            tsTempSpace.reserved = cfgGetItem(pCfg, "minimalTempDirGB")->fval;
+          } else if (strcasecmp("minimalDataDirGB", name) == 0) {
+            tsDataSpace.reserved = cfgGetItem(pCfg, "minimalDataDirGB")->fval;
+          } else if (strcasecmp("minSlidingTime", name) == 0) {
+            tsMinSlidingTime = cfgGetItem(pCfg, "minSlidingTime")->i32;
+          } else if (strcasecmp("minIntervalTime", name) == 0) {
+            tsMinIntervalTime = cfgGetItem(pCfg, "minIntervalTime")->i32; 
+          } else if (strcasecmp("minimalLogDirGB", name) == 0) {
+            tsLogSpace.reserved = cfgGetItem(pCfg, "minimalLogDirGB")->fval;
+          }
+          break;
+        }
+        case 'n': {
+          if (strcasecmp("mnodeShmSize", name) == 0) {
+            tsMnodeShmSize = cfgGetItem(pCfg, "mnodeShmSize")->i32;
+          }
+          break;
+        }
+        case 'o': {
+          if (strcasecmp("monitor", name) == 0) {
+            tsEnableMonitor = cfgGetItem(pCfg, "monitor")->bval;
+          } else if (strcasecmp("monitorInterval", name) == 0) {
+            tsMonitorInterval = cfgGetItem(pCfg, "monitorInterval")->i32;
+          } else if (strcasecmp("monitorFqdn", name) == 0) {
+            tstrncpy(tsMonitorFqdn, cfgGetItem(pCfg, "monitorFqdn")->str, TSDB_FQDN_LEN);
+          } else if (strcasecmp("monitorPort", name) == 0) {
+            tsMonitorPort = (uint16_t)cfgGetItem(pCfg, "monitorPort")->i32;
+          } else if (strcasecmp("monitorMaxLogs", name) == 0) {
+            tsMonitorMaxLogs = cfgGetItem(pCfg, "monitorMaxLogs")->i32;
+          } else if (strcasecmp("monitorComp", name) == 0) {
+            tsMonitorComp = cfgGetItem(pCfg, "monitorComp")->bval;
+          }
+          break;
+        }
+        case 'q': {
+          if (strcasecmp("mqRebalanceInterval", name) == 0) {
+            tsMqRebalanceInterval = cfgGetItem(pCfg, "mqRebalanceInterval")->i32;
+          }
+          break;
+        }
+        case 'u': {
+          if (strcasecmp("multiProcess", name) == 0) {
+            tsMultiProcess = cfgGetItem(pCfg, "multiProcess")->bval;
+          }
+          break;
+        }
+        default:
+          terrno = TSDB_CODE_CFG_NOT_FOUND;
+          return -1;
+      }
+      break;
+    }
+    case 'n': {
+      if (strcasecmp("numOfTaskQueueThreads", name) == 0) {
+        tsNumOfTaskQueueThreads = cfgGetItem(pCfg, "numOfTaskQueueThreads")->i32;
+      } else if (strcasecmp("numOfRpcThreads", name) == 0) {
+        tsNumOfRpcThreads = cfgGetItem(pCfg, "numOfRpcThreads")->i32;
+      } else if (strcasecmp("numOfCommitThreads", name) == 0) {
+        tsNumOfCommitThreads = cfgGetItem(pCfg, "numOfCommitThreads")->i32;
+      } else if (strcasecmp("numOfMnodeQueryThreads", name) == 0) {
+        tsNumOfMnodeQueryThreads = cfgGetItem(pCfg, "numOfMnodeQueryThreads")->i32;
+      } else if (strcasecmp("numOfMnodeReadThreads", name) == 0) {
+        tsNumOfMnodeReadThreads = cfgGetItem(pCfg, "numOfMnodeReadThreads")->i32;
+      } else if (strcasecmp("numOfVnodeQueryThreads", name) == 0) {
+        tsNumOfVnodeQueryThreads = cfgGetItem(pCfg, "numOfVnodeQueryThreads")->i32;
+      } else if (strcasecmp("numOfVnodeFetchThreads", name) == 0) {
+        tsNumOfVnodeFetchThreads = cfgGetItem(pCfg, "numOfVnodeFetchThreads")->i32;
+      } else if (strcasecmp("numOfVnodeWriteThreads", name) == 0) {
+        tsNumOfVnodeWriteThreads = cfgGetItem(pCfg, "numOfVnodeWriteThreads")->i32;
+      } else if (strcasecmp("numOfVnodeSyncThreads", name) == 0) {
+        tsNumOfVnodeSyncThreads = cfgGetItem(pCfg, "numOfVnodeSyncThreads")->i32;
+      } else if (strcasecmp("numOfVnodeMergeThreads", name) == 0) {
+        tsNumOfVnodeMergeThreads = cfgGetItem(pCfg, "numOfVnodeMergeThreads")->i32;
+      } else if (strcasecmp("numOfQnodeQueryThreads", name) == 0) {
+        tsNumOfQnodeQueryThreads = cfgGetItem(pCfg, "numOfQnodeQueryThreads")->i32;
+      } else if (strcasecmp("numOfQnodeFetchThreads", name) == 0) {
+        tsNumOfQnodeFetchThreads = cfgGetItem(pCfg, "numOfQnodeFetchThreads")->i32;
+      } else if (strcasecmp("numOfSnodeSharedThreads", name) == 0) {
+        tsNumOfSnodeSharedThreads = cfgGetItem(pCfg, "numOfSnodeSharedThreads")->i32;
+      } else if (strcasecmp("numOfSnodeUniqueThreads", name) == 0) {
+        tsNumOfSnodeUniqueThreads = cfgGetItem(pCfg, "numOfSnodeUniqueThreads")->i32;
+      } else if (strcasecmp("numOfLogLines", name) == 0) {
+        tsNumOfLogLines = cfgGetItem(pCfg, "numOfLogLines")->i32;
+      }
+      break;
+    }
+    case 'p': {
+      if (strcasecmp("printAuth", name) == 0) {
+        tsPrintAuth = cfgGetItem(pCfg, "printAuth")->bval;
+      }
+      break;
+    }
+    case 'q': {
+      if (strcasecmp("queryPolicy", name) == 0) {
+        tsQueryPolicy = cfgGetItem(pCfg, "queryPolicy")->i32;
+      } else if (strcasecmp("querySmaOptimize", name) == 0) {
+        tsQuerySmaOptimize = cfgGetItem(pCfg, "querySmaOptimize")->i32;
+      } else if (strcasecmp("queryBufferSize", name) == 0) {
+        tsQueryBufferSize = cfgGetItem(pCfg, "queryBufferSize")->i32;
+        if (tsQueryBufferSize >= 0) {
+          tsQueryBufferSizeBytes = tsQueryBufferSize * 1048576UL;
+        }
+      } else if (strcasecmp("qnodeShmSize", name) == 0) {
+        tsQnodeShmSize = cfgGetItem(pCfg, "qnodeShmSize")->i32;
+      } else if (strcasecmp("qDebugFlag", name) == 0) {
+        qDebugFlag = cfgGetItem(pCfg, "qDebugFlag")->i32;
+      }
+      break;
+    }
+    case 'r': {
+      if (strcasecmp("retryStreamCompDelay", name) == 0) {
+        tsRetryStreamCompDelay = cfgGetItem(pCfg, "retryStreamCompDelay")->i32;
+      } else if (strcasecmp("retrieveBlockingModel", name) == 0) {
+        tsRetrieveBlockingModel = cfgGetItem(pCfg, "retrieveBlockingModel")->bval;
+      } else if (strcasecmp("rpcQueueMemoryAllowed", name) == 0) {
+        tsRpcQueueMemoryAllowed = cfgGetItem(pCfg, "rpcQueueMemoryAllowed")->i64;
+      } else if (strcasecmp("rpcDebugFlag", name) == 0) {
+        rpcDebugFlag = cfgGetItem(pCfg, "rpcDebugFlag")->i32;
+      }
+      break;
+    }
+    case 's': {
+      if (strcasecmp("secondEp", name) == 0) {
+        SConfigItem *pSecondpItem = cfgGetItem(pCfg, "secondEp");
+        SEp          secondEp = {0};
+        taosGetFqdnPortFromEp(strlen(pSecondpItem->str) == 0 ? tsFirst : pSecondpItem->str, &secondEp);
+        snprintf(tsSecond, sizeof(tsSecond), "%s:%u", secondEp.fqdn, secondEp.port);
+        cfgSetItem(pCfg, "secondEp", tsSecond, pSecondpItem->stype);
+      } else if (strcasecmp("smlChildTableName", name) == 0) {
+        tstrncpy(tsSmlChildTableName, cfgGetItem(pCfg, "smlChildTableName")->str, TSDB_TABLE_NAME_LEN);
+      } else if (strcasecmp("smlTagName", name) == 0) {
+        tstrncpy(tsSmlTagName, cfgGetItem(pCfg, "smlTagName")->str, TSDB_COL_NAME_LEN);
+      } else if (strcasecmp("smlDataFormat", name) == 0) {
+        tsSmlDataFormat = cfgGetItem(pCfg, "smlDataFormat")->bval;
+      } else if (strcasecmp("shellActivityTimer", name) == 0) {
+        tsShellActivityTimer = cfgGetItem(pCfg, "shellActivityTimer")->i32;
+      } else if (strcasecmp("supportVnodes", name) == 0) {
+        tsNumOfSupportVnodes = cfgGetItem(pCfg, "supportVnodes")->i32;
+      } else if (strcasecmp("statusInterval", name) == 0) {
+        tsStatusInterval = cfgGetItem(pCfg, "statusInterval")->i32;
+      } else if (strcasecmp("streamCompDelayRatio", name) == 0) {
+        tsStreamComputDelayRatio = cfgGetItem(pCfg, "streamCompDelayRatio")->fval;
+      } else if (strcasecmp("slaveQuery", name) == 0) {
+        tsEnableSlaveQuery = cfgGetItem(pCfg, "slaveQuery")->bval;
+      } else if (strcasecmp("snodeShmSize", name) == 0) {
+        tsSnodeShmSize = cfgGetItem(pCfg, "snodeShmSize")->i32;
+      } else if (strcasecmp("serverPort", name) == 0) {
+        tstrncpy(tsLocalFqdn, cfgGetItem(pCfg, "fqdn")->str, TSDB_FQDN_LEN);
+        tsServerPort = (uint16_t)cfgGetItem(pCfg, "serverPort")->i32;
+        snprintf(tsLocalEp, sizeof(tsLocalEp), "%s:%u", tsLocalFqdn, tsServerPort);
+        
+        char defaultFirstEp[TSDB_EP_LEN] = {0};
+        snprintf(defaultFirstEp, TSDB_EP_LEN, "%s:%u", tsLocalFqdn, tsServerPort);
+        
+        SConfigItem *pFirstEpItem = cfgGetItem(pCfg, "firstEp");
+        SEp          firstEp = {0};
+        taosGetFqdnPortFromEp(strlen(pFirstEpItem->str) == 0 ? defaultFirstEp : pFirstEpItem->str, &firstEp);
+        snprintf(tsFirst, sizeof(tsFirst), "%s:%u", firstEp.fqdn, firstEp.port);
+        cfgSetItem(pCfg, "firstEp", tsFirst, pFirstEpItem->stype);
+      } else if (strcasecmp("sDebugFlag", name) == 0) {
+        sDebugFlag = cfgGetItem(pCfg, "sDebugFlag")->i32;
+      } else if (strcasecmp("smaDebugFlag", name) == 0) {
+        smaDebugFlag = cfgGetItem(pCfg, "smaDebugFlag")->i32;
+      }
+      break;
+    }
+    case 't': {
+      if (strcasecmp("timezone", name) == 0) {
+        SConfigItem *pItem = cfgGetItem(pCfg, "timezone");
+        osSetTimezone(pItem->str);
+        uDebug("timezone format changed from %s to %s", pItem->str, tsTimezoneStr);
+        cfgSetItem(pCfg, "timezone", tsTimezoneStr, pItem->stype);
+      } else if (strcasecmp("tempDir", name) == 0) {
+        tstrncpy(tsTempDir, cfgGetItem(pCfg, "tempDir")->str, PATH_MAX);
+        taosExpandDir(tsTempDir, tsTempDir, PATH_MAX);
+        if (taosMulMkDir(tsTempDir) != 0) {
+          uError("failed to create tempDir:%s since %s", tsTempDir, terrstr());
+          return -1;
+        }
+      } else if (strcasecmp("telemetryReporting", name) == 0) {
+        tsEnableTelem = cfgGetItem(pCfg, "telemetryReporting")->bval;
+      } else if (strcasecmp("telemetryInterval", name) == 0) {
+        tsTelemInterval = cfgGetItem(pCfg, "telemetryInterval")->i32;
+      } else if (strcasecmp("telemetryServer", name) == 0) {
+        tstrncpy(tsTelemServer, cfgGetItem(pCfg, "telemetryServer")->str, TSDB_FQDN_LEN);
+      } else if (strcasecmp("telemetryPort", name) == 0) {
+        tsTelemPort = (uint16_t)cfgGetItem(pCfg, "telemetryPort")->i32;
+      } else if (strcasecmp("transPullupInterval", name) == 0) {
+        tsTransPullupInterval = cfgGetItem(pCfg, "transPullupInterval")->i32;
+      } else if (strcasecmp("tmrDebugFlag", name) == 0) {
+        tmrDebugFlag = cfgGetItem(pCfg, "tmrDebugFlag")->i32;
+      } else if (strcasecmp("tsdbDebugFlag", name) == 0) {
+        tsdbDebugFlag = cfgGetItem(pCfg, "tsdbDebugFlag")->i32;
+      } else if (strcasecmp("tqDebugFlag", name) == 0) {
+        tqDebugFlag = cfgGetItem(pCfg, "tqDebugFlag")->i32;
+      }
+      break;
+    }
+    case 'u': {
+      if (strcasecmp("udf", name) == 0) {
+        tsStartUdfd = cfgGetItem(pCfg, "udf")->bval;
+      } else if (strcasecmp("uDebugFlag", name) == 0) {
+        uDebugFlag = cfgGetItem(pCfg, "uDebugFlag")->i32;
+      }
+      break;
+    }
+    case 'v': {
+      if (strcasecmp("vnodeShmSize", name) == 0) {
+        tsVnodeShmSize = cfgGetItem(pCfg, "vnodeShmSize")->i32;
+      } else if (strcasecmp("vDebugFlag", name) == 0) {
+        vDebugFlag = cfgGetItem(pCfg, "vDebugFlag")->i32;
+      }
+      break;
+    }
+    case 'w': {
+      if (strcasecmp("wDebugFlag", name) == 0) {
+        wDebugFlag = cfgGetItem(pCfg, "wDebugFlag")->i32;
+      }
+      break;
+    }
+    default:
+      terrno = TSDB_CODE_CFG_NOT_FOUND;    
+      return -1;
+  }
+  
+  return 0;
+}
+
+
 int32_t taosCreateLog(const char *logname, int32_t logFileNum, const char *cfgDir, const char **envCmd,
                       const char *envFile, char *apolloUrl, SArray *pArgs, bool tsc) {
   osDefaultInit();

source/common/src/tname.c

@@ -214,6 +214,20 @@ int32_t tNameSetDbName(SName* dst, int32_t acct, const char* dbName, size_t name
   return 0;
 }
 
+int32_t tNameAddTbName(SName* dst, const char* tbName, size_t nameLen) {
+  assert(dst != NULL && tbName != NULL && nameLen > 0);
+
+  // too long account id or too long db name
+  if (nameLen >= tListLen(dst->tname) || nameLen <= 0) {
+    return -1;
+  }
+
+  dst->type = TSDB_TABLE_NAME_T;
+  tstrncpy(dst->tname, tbName, nameLen + 1);
+  return 0;
+}
+
+
 int32_t tNameSetAcctId(SName* dst, int32_t acctId) {
   assert(dst != NULL);
   dst->acctId = acctId;

source/libs/command/src/command.c

@@ -555,6 +555,10 @@ static int32_t execAlterLocal(SAlterLocalStmt* pStmt) {
     return terrno; 
   }
 
+  if (taosSetCfg(tsCfg, pStmt->config)) {
+    return terrno; 
+  }
+
   return TSDB_CODE_SUCCESS;
 }