diff --git a/source/client/inc/clientInt.h b/source/client/inc/clientInt.h
index d61262c9dc..51a5b84a1c 100644
--- a/source/client/inc/clientInt.h
+++ b/source/client/inc/clientInt.h
@@ -128,7 +128,7 @@ typedef struct STscObj {
   int8_t        connType;
   int32_t       acctId;
   uint32_t      connId;
-  uint64_t      id;         // ref ID returned by taosAddRef
+  TAOS         *id;         // ref ID returned by taosAddRef
   TdThreadMutex mutex;      // used to protect the operation on db
   int32_t       numOfReqs;  // number of sqlObj bound to this connection
   SAppInstInfo* pAppInfo;
diff --git a/source/client/src/clientEnv.c b/source/client/src/clientEnv.c
index 24246e5c45..78454268b7 100644
--- a/source/client/src/clientEnv.c
+++ b/source/client/src/clientEnv.c
@@ -38,7 +38,7 @@ static TdThreadOnce tscinit = PTHREAD_ONCE_INIT;
 volatile int32_t    tscInitRes = 0;
 
 static void registerRequest(SRequestObj *pRequest) {
-  STscObj *pTscObj = acquireTscObj(pRequest->pTscObj->id);
+  STscObj *pTscObj = acquireTscObj(*(int64_t*)pRequest->pTscObj->id);
 
   assert(pTscObj != NULL);
 
@@ -54,7 +54,7 @@ static void registerRequest(SRequestObj *pRequest) {
     int32_t currentInst = atomic_add_fetch_64((int64_t *)&pSummary->currentRequests, 1);
     tscDebug("0x%" PRIx64 " new Request from connObj:0x%" PRIx64
              ", current:%d, app current:%d, total:%d, reqId:0x%" PRIx64,
-             pRequest->self, pRequest->pTscObj->id, num, currentInst, total, pRequest->requestId);
+             pRequest->self, *(int64_t*)pRequest->pTscObj->id, num, currentInst, total, pRequest->requestId);
   }
 }
 
@@ -70,8 +70,8 @@ static void deregisterRequest(SRequestObj *pRequest) {
   int64_t duration = taosGetTimestampUs() - pRequest->metric.start;
   tscDebug("0x%" PRIx64 " free Request from connObj: 0x%" PRIx64 ", reqId:0x%" PRIx64 " elapsed:%" PRIu64
            " ms, current:%d, app current:%d",
-           pRequest->self, pTscObj->id, pRequest->requestId, duration / 1000, num, currentInst);
-  releaseTscObj(pTscObj->id);
+           pRequest->self, *(int64_t*)pTscObj->id, pRequest->requestId, duration / 1000, num, currentInst);
+  releaseTscObj(*(int64_t*)pTscObj->id);
 }
 
 // todo close the transporter properly
@@ -80,7 +80,7 @@ void closeTransporter(STscObj *pTscObj) {
     return;
   }
 
-  tscDebug("free transporter:%p in connObj: 0x%" PRIx64, pTscObj->pAppInfo->pTransporter, pTscObj->id);
+  tscDebug("free transporter:%p in connObj: 0x%" PRIx64, pTscObj->pAppInfo->pTransporter, *(int64_t*)pTscObj->id);
   rpcClose(pTscObj->pAppInfo->pTransporter);
 }
 
@@ -128,7 +128,7 @@ void closeAllRequests(SHashObj *pRequests) {
 void destroyTscObj(void *pObj) {
   STscObj *pTscObj = pObj;
 
-  SClientHbKey connKey = {.tscRid = pTscObj->id, .connType = pTscObj->connType};
+  SClientHbKey connKey = {.tscRid = *(int64_t*)pTscObj->id, .connType = pTscObj->connType};
   hbDeregisterConn(pTscObj->pAppInfo->pAppHbMgr, connKey);
   int64_t connNum = atomic_sub_fetch_64(&pTscObj->pAppInfo->numOfConns, 1);
   closeAllRequests(pTscObj->pRequests);
@@ -137,7 +137,7 @@ void destroyTscObj(void *pObj) {
     // TODO 
     //closeTransporter(pTscObj);
   }
-  tscDebug("connObj 0x%" PRIx64 " destroyed, totalConn:%" PRId64, pTscObj->id, pTscObj->pAppInfo->numOfConns);
+  tscDebug("connObj 0x%" PRIx64 " destroyed, totalConn:%" PRId64, *(int64_t*)pTscObj->id, pTscObj->pAppInfo->numOfConns);
   taosThreadMutexDestroy(&pTscObj->mutex);
   taosMemoryFreeClear(pTscObj);
 }
@@ -166,10 +166,11 @@ void *createTscObj(const char *user, const char *auth, const char *db, int32_t c
   }
 
   taosThreadMutexInit(&pObj->mutex, NULL);
-  pObj->id = taosAddRef(clientConnRefPool, pObj);
+  pObj->id = taosMemoryMalloc(sizeof(int64_t));
+  *(int64_t*)pObj->id = taosAddRef(clientConnRefPool, pObj);
   pObj->schemalessType = 1;
 
-  tscDebug("connObj created, 0x%" PRIx64, pObj->id);
+  tscDebug("connObj created, 0x%" PRIx64, *(int64_t*)pObj->id);
   return pObj;
 }
 
diff --git a/source/client/src/clientImpl.c b/source/client/src/clientImpl.c
index d04cc90ee4..9668d2b72c 100644
--- a/source/client/src/clientImpl.c
+++ b/source/client/src/clientImpl.c
@@ -263,6 +263,7 @@ void asyncExecLocalCmd(SRequestObj* pRequest, SQuery* pQuery) {
 int32_t asyncExecDdlQuery(SRequestObj* pRequest, SQuery* pQuery) {
   // drop table if exists not_exists_table
   if (NULL == pQuery->pCmdMsg) {
+    pRequest->body.queryFp(pRequest->body.param, pRequest, 0);
     return TSDB_CODE_SUCCESS;
   }
 
@@ -609,6 +610,16 @@ void schedulerExecCb(SQueryResult* pResult, void* param, int32_t code) {
   SRequestObj* pRequest = (SRequestObj*)param;
   pRequest->code = code;
 
+  if (TDMT_VND_SUBMIT == pRequest->type || TDMT_VND_DELETE == pRequest->type ||
+      TDMT_VND_CREATE_TABLE == pRequest->type) {
+    pRequest->body.resInfo.numOfRows = pResult->numOfRows;
+
+    if (pRequest->body.queryJob != 0) {
+      schedulerFreeJob(pRequest->body.queryJob, 0);
+      pRequest->body.queryJob = 0;
+    }
+  }
+
   tscDebug("0x%" PRIx64 " enter scheduler exec cb, code:%d - %s, reqId:0x%" PRIx64,
              pRequest->self, code, tstrerror(code), pRequest->requestId);
 
@@ -712,7 +723,7 @@ void launchAsyncQuery(SRequestObj* pRequest, SQuery* pQuery) {
       code = asyncExecDdlQuery(pRequest, pQuery);
       break;
     case QUERY_EXEC_MODE_SCHEDULE: {
-      SArray* pNodeList = taosArrayInit(4, sizeof(struct SQueryNodeAddr));
+      SArray* pNodeList = taosArrayInit(4, sizeof(SQueryNodeLoad));
 
       pRequest->type = pQuery->msgType;
 
@@ -725,12 +736,10 @@ void launchAsyncQuery(SRequestObj* pRequest, SQuery* pQuery) {
                           .msgLen = ERROR_MSG_BUF_DEFAULT_SIZE};
 
       SAppInstInfo* pAppInfo = getAppInfo(pRequest);
-      if (TSDB_CODE_SUCCESS == code) {
-        code = qCreateQueryPlan(&cxt, &pRequest->body.pDag, pNodeList);
-        if (code) {
-          tscError("0x%" PRIx64 " failed to create query plan, code:%s 0x%" PRIx64, pRequest->self, tstrerror(code),
-                   pRequest->requestId);
-        }
+      code = qCreateQueryPlan(&cxt, &pRequest->body.pDag, pNodeList);
+      if (code) {
+        tscError("0x%" PRIx64 " failed to create query plan, code:%s 0x%" PRIx64, pRequest->self, tstrerror(code),
+                 pRequest->requestId);
       }
 
       if (TSDB_CODE_SUCCESS == code) {
@@ -927,7 +936,7 @@ STscObj* taosConnectImpl(const char* user, const char* auth, const char* db, __t
     taos_close_internal(pTscObj);
     pTscObj = NULL;
   } else {
-    tscDebug("0x%" PRIx64 " connection is opening, connId:%u, dnodeConn:%p, reqId:0x%" PRIx64, pTscObj->id,
+    tscDebug("0x%" PRIx64 " connection is opening, connId:%u, dnodeConn:%p, reqId:0x%" PRIx64, *(int64_t*)pTscObj->id,
              pTscObj->connId, pTscObj->pAppInfo->pTransporter, pRequest->requestId);
     destroyRequest(pRequest);
   }
@@ -1090,10 +1099,10 @@ TAOS* taos_connect_auth(const char* ip, const char* user, const char* auth, cons
 
   STscObj* pObj = taos_connect_internal(ip, user, NULL, auth, db, port, CONN_TYPE__QUERY);
   if (pObj) {
-    return (TAOS*)pObj->id;
+    return pObj->id;
   }
   
-  return (TAOS*)0;
+  return NULL;
 }
 
 TAOS* taos_connect_l(const char* ip, int ipLen, const char* user, int userLen, const char* pass, int passLen,
diff --git a/source/client/src/clientMain.c b/source/client/src/clientMain.c
index 9a5d5bbeca..51e05537d4 100644
--- a/source/client/src/clientMain.c
+++ b/source/client/src/clientMain.c
@@ -99,10 +99,10 @@ TAOS *taos_connect(const char *ip, const char *user, const char *pass, const cha
 
   STscObj* pObj = taos_connect_internal(ip, user, pass, NULL, db, port, CONN_TYPE__QUERY);
   if (pObj) {
-    return (TAOS*)pObj->id;
+    return pObj->id;
   }
   
-  return (TAOS*)0;
+  return NULL;
 }
 
 void taos_close_internal(void *taos) {
@@ -111,19 +111,24 @@ void taos_close_internal(void *taos) {
   }
 
   STscObj *pTscObj = (STscObj *)taos;
-  tscDebug("0x%" PRIx64 " try to close connection, numOfReq:%d", pTscObj->id, pTscObj->numOfReqs);
+  tscDebug("0x%" PRIx64 " try to close connection, numOfReq:%d", *(int64_t*)pTscObj->id, pTscObj->numOfReqs);
 
-  taosRemoveRef(clientConnRefPool, pTscObj->id);
+  taosRemoveRef(clientConnRefPool, *(int64_t*)pTscObj->id);
 }
 
 void taos_close(TAOS *taos) {
-  STscObj* pObj = acquireTscObj((int64_t)taos);
+  if (taos == NULL) {
+    return;
+  }
+  
+  STscObj* pObj = acquireTscObj(*(int64_t*)taos);
   if (NULL == pObj) {
     return;
   }
   
   taos_close_internal(pObj);
-  releaseTscObj((int64_t)taos);
+  releaseTscObj(*(int64_t*)taos);
+  taosMemoryFree(taos);
 }
 
 
@@ -206,7 +211,12 @@ static void syncQueryFn(void *param, void *res, int32_t code) {
 }
 
 TAOS_RES *taos_query(TAOS *taos, const char *sql) {
-  STscObj* pTscObj = acquireTscObj((int64_t)taos);
+  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;
@@ -219,13 +229,13 @@ TAOS_RES *taos_query(TAOS *taos, const char *sql) {
   taos_query_a(taos, sql, syncQueryFn, param);
   tsem_wait(&param->sem);
 
-  releaseTscObj((int64_t)taos);
+  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);
+    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;
@@ -233,7 +243,7 @@ TAOS_RES *taos_query(TAOS *taos, const char *sql) {
 
   TAOS_RES* pRes = execQuery(pTscObj, sql, sqlLen);
 
-  releaseTscObj((int64_t)taos);
+  releaseTscObj(*(int64_t*)taos);
 
   return pRes;
 #endif
@@ -453,15 +463,15 @@ int taos_result_precision(TAOS_RES *res) {
 }
 
 int taos_select_db(TAOS *taos, const char *db) {
-  STscObj* pObj = acquireTscObj((int64_t)taos);
+  STscObj* pObj = acquireTscObj(*(int64_t*)taos);
   if (pObj == NULL) {
-    releaseTscObj((int64_t)taos);
+    releaseTscObj(*(int64_t*)taos);
     terrno = TSDB_CODE_TSC_DISCONNECTED;
     return TSDB_CODE_TSC_DISCONNECTED;
   }
 
   if (db == NULL || strlen(db) == 0) {
-    releaseTscObj((int64_t)taos);
+    releaseTscObj(*(int64_t*)taos);
     terrno = TSDB_CODE_TSC_INVALID_INPUT;
     return terrno;
   }
@@ -473,7 +483,7 @@ int taos_select_db(TAOS *taos, const char *db) {
   int32_t   code = taos_errno(pRequest);
 
   taos_free_result(pRequest);
-  releaseTscObj((int64_t)taos);
+  releaseTscObj(*(int64_t*)taos);
   return code;
 }
 
@@ -626,7 +636,7 @@ int *taos_get_column_data_offset(TAOS_RES *res, int columnIndex) {
 int taos_validate_sql(TAOS *taos, const char *sql) { return true; }
 
 void taos_reset_current_db(TAOS *taos) {
-  STscObj* pTscObj = acquireTscObj((int64_t)taos);
+  STscObj* pTscObj = acquireTscObj(*(int64_t*)taos);
   if (pTscObj == NULL) {
     terrno = TSDB_CODE_TSC_DISCONNECTED;
     return;
@@ -634,17 +644,17 @@ void taos_reset_current_db(TAOS *taos) {
 
   resetConnectDB(pTscObj);
 
-  releaseTscObj((int64_t)taos);
+  releaseTscObj(*(int64_t*)taos);
 }
 
 const char *taos_get_server_info(TAOS *taos) {
-  STscObj* pTscObj = acquireTscObj((int64_t)taos);
+  STscObj* pTscObj = acquireTscObj(*(int64_t*)taos);
   if (pTscObj == NULL) {
     terrno = TSDB_CODE_TSC_DISCONNECTED;
     return NULL;
   }
 
-  releaseTscObj((int64_t)taos);
+  releaseTscObj(*(int64_t*)taos);
 
   return pTscObj->ver;
 }
@@ -671,6 +681,8 @@ static void destorySqlParseWrapper(SqlParseWrapper *pWrapper) {
 }
 
 void retrieveMetaCallback(SMetaData *pResultMeta, void *param, int32_t code) {
+  tscDebug("enter meta callback, code %s", tstrerror(code));
+  
   SqlParseWrapper *pWrapper = (SqlParseWrapper *)param;
   SQuery          *pQuery = pWrapper->pQuery;
   SRequestObj     *pRequest = pWrapper->pRequest;
@@ -711,11 +723,11 @@ 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);
+  STscObj* pTscObj = acquireTscObj(*(int64_t*)taos);
   if (pTscObj == NULL || sql == NULL || NULL == fp) {
     terrno = TSDB_CODE_INVALID_PARA;
     if (pTscObj) {
-      releaseTscObj((int64_t)taos);
+      releaseTscObj(*(int64_t*)taos);
     } else {
       terrno = TSDB_CODE_TSC_DISCONNECTED;
     }
@@ -936,7 +948,7 @@ int taos_load_table_info(TAOS *taos, const char *tableNameList) {
 }
 
 TAOS_STMT *taos_stmt_init(TAOS *taos) {
-  STscObj* pObj = acquireTscObj((int64_t)taos);
+  STscObj* pObj = acquireTscObj(*(int64_t*)taos);
   if (NULL == pObj) {
     tscError("invalid parameter for %s", __FUNCTION__);
     terrno = TSDB_CODE_TSC_DISCONNECTED;
@@ -945,7 +957,7 @@ TAOS_STMT *taos_stmt_init(TAOS *taos) {
 
   TAOS_STMT* pStmt = stmtInit(pObj);
   
-  releaseTscObj((int64_t)taos);
+  releaseTscObj(*(int64_t*)taos);
 
   return pStmt;
 }
diff --git a/source/client/src/clientMsgHandler.c b/source/client/src/clientMsgHandler.c
index bf627ec26b..db8aebb322 100644
--- a/source/client/src/clientMsgHandler.c
+++ b/source/client/src/clientMsgHandler.c
@@ -77,7 +77,7 @@ int32_t processConnectRsp(void* param, const SDataBuf* pMsg, int32_t code) {
 
   for (int32_t i = 0; i < connectRsp.epSet.numOfEps; ++i) {
     tscDebug("0x%" PRIx64 " epSet.fqdn[%d]:%s port:%d, connObj:0x%" PRIx64, pRequest->requestId, i,
-             connectRsp.epSet.eps[i].fqdn, connectRsp.epSet.eps[i].port, pTscObj->id);
+             connectRsp.epSet.eps[i].fqdn, connectRsp.epSet.eps[i].port, *(int64_t*)pTscObj->id);
   }
 
   pTscObj->connId = connectRsp.connId;
@@ -90,7 +90,7 @@ int32_t processConnectRsp(void* param, const SDataBuf* pMsg, int32_t code) {
 
   pTscObj->connType = connectRsp.connType;
 
-  hbRegisterConn(pTscObj->pAppInfo->pAppHbMgr, pTscObj->id, connectRsp.clusterId, connectRsp.connType);
+  hbRegisterConn(pTscObj->pAppInfo->pAppHbMgr, *(int64_t*)pTscObj->id, connectRsp.clusterId, connectRsp.connType);
 
   //  pRequest->body.resInfo.pRspMsg = pMsg->pData;
   tscDebug("0x%" PRIx64 " clusterId:%" PRId64 ", totalConn:%" PRId64, pRequest->requestId, connectRsp.clusterId,
diff --git a/source/client/src/clientSml.c b/source/client/src/clientSml.c
index 25018e0d15..580aafa010 100644
--- a/source/client/src/clientSml.c
+++ b/source/client/src/clientSml.c
@@ -309,7 +309,7 @@ static int32_t smlApplySchemaAction(SSmlHandle *info, SSchemaAction *action) {
     case SCHEMA_ACTION_ADD_COLUMN: {
       int n = sprintf(result, "alter stable `%s` add column ", action->alterSTable.sTableName);
       smlBuildColumnDescription(action->alterSTable.field, result + n, capacity - n, &outBytes);
-      TAOS_RES *res = taos_query((TAOS*)info->taos->id, result);  // TODO async doAsyncQuery
+      TAOS_RES *res = taos_query(info->taos->id, result);  // TODO async doAsyncQuery
       code = taos_errno(res);
       const char *errStr = taos_errstr(res);
       if (code != TSDB_CODE_SUCCESS) {
@@ -323,7 +323,7 @@ static int32_t smlApplySchemaAction(SSmlHandle *info, SSchemaAction *action) {
     case SCHEMA_ACTION_ADD_TAG: {
       int n = sprintf(result, "alter stable `%s` add tag ", action->alterSTable.sTableName);
       smlBuildColumnDescription(action->alterSTable.field, result + n, capacity - n, &outBytes);
-      TAOS_RES *res = taos_query((TAOS*)info->taos->id, result);  // TODO async doAsyncQuery
+      TAOS_RES *res = taos_query(info->taos->id, result);  // TODO async doAsyncQuery
       code = taos_errno(res);
       const char *errStr = taos_errstr(res);
       if (code != TSDB_CODE_SUCCESS) {
@@ -337,7 +337,7 @@ static int32_t smlApplySchemaAction(SSmlHandle *info, SSchemaAction *action) {
     case SCHEMA_ACTION_CHANGE_COLUMN_SIZE: {
       int n = sprintf(result, "alter stable `%s` modify column ", action->alterSTable.sTableName);
       smlBuildColumnDescription(action->alterSTable.field, result + n, capacity - n, &outBytes);
-      TAOS_RES *res = taos_query((TAOS*)info->taos->id, result);  // TODO async doAsyncQuery
+      TAOS_RES *res = taos_query(info->taos->id, result);  // TODO async doAsyncQuery
       code = taos_errno(res);
       if (code != TSDB_CODE_SUCCESS) {
         uError("SML:0x%" PRIx64 " apply schema action. error : %s", info->id, taos_errstr(res));
@@ -350,7 +350,7 @@ static int32_t smlApplySchemaAction(SSmlHandle *info, SSchemaAction *action) {
     case SCHEMA_ACTION_CHANGE_TAG_SIZE: {
       int n = sprintf(result, "alter stable `%s` modify tag ", action->alterSTable.sTableName);
       smlBuildColumnDescription(action->alterSTable.field, result + n, capacity - n, &outBytes);
-      TAOS_RES *res = taos_query((TAOS*)info->taos->id, result);  // TODO async doAsyncQuery
+      TAOS_RES *res = taos_query(info->taos->id, result);  // TODO async doAsyncQuery
       code = taos_errno(res);
       if (code != TSDB_CODE_SUCCESS) {
         uError("SML:0x%" PRIx64 " apply schema action. error : %s", info->id, taos_errstr(res));
@@ -405,7 +405,7 @@ static int32_t smlApplySchemaAction(SSmlHandle *info, SSchemaAction *action) {
       pos--;
       ++freeBytes;
       outBytes = snprintf(pos, freeBytes, ")");
-      TAOS_RES *res = taos_query((TAOS*)info->taos->id, result);
+      TAOS_RES *res = taos_query(info->taos->id, result);
       code = taos_errno(res);
       if (code != TSDB_CODE_SUCCESS) {
         uError("SML:0x%" PRIx64 " apply schema action. error : %s", info->id, taos_errstr(res));
@@ -2434,7 +2434,7 @@ static void smlInsertCallback(void *param, void *res, int32_t code) {
  */
 
 TAOS_RES* taos_schemaless_insert(TAOS* taos, char* lines[], int numLines, int protocol, int precision) {
-  STscObj* pTscObj = acquireTscObj((int64_t)taos);
+  STscObj* pTscObj = acquireTscObj(*(int64_t*)taos);
   if (NULL == pTscObj) {
     terrno = TSDB_CODE_TSC_DISCONNECTED;
     uError("SML:taos_schemaless_insert invalid taos");
@@ -2443,7 +2443,7 @@ TAOS_RES* taos_schemaless_insert(TAOS* taos, char* lines[], int numLines, int pr
   
   SRequestObj* request = (SRequestObj*)createRequest(pTscObj, TSDB_SQL_INSERT);
   if(!request){
-    releaseTscObj((int64_t)taos);
+    releaseTscObj(*(int64_t*)taos);
     uError("SML:taos_schemaless_insert error request is null");
     return NULL;
   }
@@ -2531,6 +2531,6 @@ end:
 //  ((STscObj *)taos)->schemalessType = 0;
   pTscObj->schemalessType = 1;
   uDebug("resultend:%s", request->msgBuf);
-  releaseTscObj((int64_t)taos);
+  releaseTscObj(*(int64_t*)taos);
   return (TAOS_RES*)request;
 }
diff --git a/source/dnode/mgmt/mgmt_mnode/src/mmHandle.c b/source/dnode/mgmt/mgmt_mnode/src/mmHandle.c
index d895b73fb0..a845ae7b39 100644
--- a/source/dnode/mgmt/mgmt_mnode/src/mmHandle.c
+++ b/source/dnode/mgmt/mgmt_mnode/src/mmHandle.c
@@ -204,8 +204,8 @@ SArray *mmGetMsgHandles() {
 
   if (dmSetMgmtHandle(pArray, TDMT_VND_QUERY, mmPutMsgToQueryQueue, 1) == NULL) goto _OVER;
   if (dmSetMgmtHandle(pArray, TDMT_VND_QUERY_CONTINUE, mmPutMsgToQueryQueue, 1) == NULL) goto _OVER;
-  if (dmSetMgmtHandle(pArray, TDMT_VND_QUERY_HEARTBEAT, mmPutMsgToQueryQueue, 1) == NULL) goto _OVER;
-  if (dmSetMgmtHandle(pArray, TDMT_VND_FETCH, mmPutMsgToQueryQueue, 1) == NULL) goto _OVER;
+  if (dmSetMgmtHandle(pArray, TDMT_VND_QUERY_HEARTBEAT, mmPutMsgToFetchQueue, 1) == NULL) goto _OVER;
+  if (dmSetMgmtHandle(pArray, TDMT_VND_FETCH, mmPutMsgToFetchQueue, 1) == NULL) goto _OVER;
   if (dmSetMgmtHandle(pArray, TDMT_VND_CREATE_STB_RSP, mmPutMsgToWriteQueue, 0) == NULL) goto _OVER;
   if (dmSetMgmtHandle(pArray, TDMT_VND_ALTER_STB_RSP, mmPutMsgToWriteQueue, 0) == NULL) goto _OVER;
   if (dmSetMgmtHandle(pArray, TDMT_VND_DROP_STB_RSP, mmPutMsgToWriteQueue, 0) == NULL) goto _OVER;
@@ -213,7 +213,7 @@ SArray *mmGetMsgHandles() {
   if (dmSetMgmtHandle(pArray, TDMT_VND_DROP_SMA_RSP, mmPutMsgToWriteQueue, 0) == NULL) goto _OVER;
   if (dmSetMgmtHandle(pArray, TDMT_VND_MQ_VG_CHANGE_RSP, mmPutMsgToWriteQueue, 0) == NULL) goto _OVER;
   if (dmSetMgmtHandle(pArray, TDMT_VND_MQ_VG_DELETE_RSP, mmPutMsgToWriteQueue, 0) == NULL) goto _OVER;
-  if (dmSetMgmtHandle(pArray, TDMT_VND_DROP_TASK, mmPutMsgToQueryQueue, 1) == NULL) goto _OVER;
+  if (dmSetMgmtHandle(pArray, TDMT_VND_DROP_TASK, mmPutMsgToFetchQueue, 1) == NULL) goto _OVER;
   if (dmSetMgmtHandle(pArray, TDMT_STREAM_TASK_DEPLOY_RSP, mmPutMsgToWriteQueue, 0) == NULL) goto _OVER;
   if (dmSetMgmtHandle(pArray, TDMT_VND_STREAM_TASK_DROP_RSP, mmPutMsgToWriteQueue, 0) == NULL) goto _OVER;
   if (dmSetMgmtHandle(pArray, TDMT_VND_ALTER_CONFIG_RSP, mmPutMsgToWriteQueue, 0) == NULL) goto _OVER;
diff --git a/source/libs/planner/src/planPhysiCreater.c b/source/libs/planner/src/planPhysiCreater.c
index 99476c4cbd..f2671f6279 100644
--- a/source/libs/planner/src/planPhysiCreater.c
+++ b/source/libs/planner/src/planPhysiCreater.c
@@ -35,7 +35,7 @@ typedef struct SPhysiPlanContext {
   int32_t       errCode;
   int16_t       nextDataBlockId;
   SArray*       pLocationHelper;
-  SArray*       pExecNodeList;
+  SArray*       pExecNodeList;     // SArray<SQueryNodeLoad>
 } SPhysiPlanContext;
 
 static int32_t getSlotKey(SNode* pNode, const char* pStmtName, char* pKey) {
@@ -459,7 +459,7 @@ static int32_t createTagScanPhysiNode(SPhysiPlanContext* pCxt, SSubplan* pSubpla
   }
   vgroupInfoToNodeAddr(pScanLogicNode->pVgroupList->vgroups, &pSubplan->execNode);
   SQueryNodeLoad node = {.addr = pSubplan->execNode, .load = 0};
-  taosArrayPush(pCxt->pExecNodeList, &pSubplan->execNode);
+  taosArrayPush(pCxt->pExecNodeList, &node);
   return createScanPhysiNodeFinalize(pCxt, pSubplan, pScanLogicNode, (SScanPhysiNode*)pTagScan, pPhyNode);
 }
 
@@ -532,7 +532,7 @@ static int32_t createSystemTableScanPhysiNode(SPhysiPlanContext* pCxt, SSubplan*
   if (0 == strcmp(pScanLogicNode->tableName.tname, TSDB_INS_TABLE_USER_TABLES)) {
     vgroupInfoToNodeAddr(pScanLogicNode->pVgroupList->vgroups, &pSubplan->execNode);
     SQueryNodeLoad node = {.addr = pSubplan->execNode, .load = 0};
-    taosArrayPush(pCxt->pExecNodeList, &pSubplan->execNode);
+    taosArrayPush(pCxt->pExecNodeList, &node);
   } else {
     SQueryNodeLoad node = {.addr = {.nodeId = MNODE_HANDLE, .epSet = pCxt->pPlanCxt->mgmtEpSet}, .load = 0};
     taosArrayPush(pCxt->pExecNodeList, &node);
diff --git a/source/libs/scheduler/inc/schedulerInt.h b/source/libs/scheduler/inc/schedulerInt.h
index 545bb6c45a..6b2570c5b7 100644
--- a/source/libs/scheduler/inc/schedulerInt.h
+++ b/source/libs/scheduler/inc/schedulerInt.h
@@ -210,7 +210,7 @@ typedef struct SSchJob {
   int32_t          levelNum;
   int32_t          taskNum;
   SRequestConnInfo conn;
-  SArray          *nodeList;   // qnode/vnode list, SArray<SQueryNodeAddr>
+  SArray          *nodeList;   // qnode/vnode list, SArray<SQueryNodeLoad>
   SArray          *levels;    // starting from 0. SArray<SSchLevel>
   SNodeList       *subPlans;  // subplan pointer copied from DAG, no need to free it in scheduler
 
diff --git a/source/libs/scheduler/src/schJob.c b/source/libs/scheduler/src/schJob.c
index 733f8694cc..679a244f31 100644
--- a/source/libs/scheduler/src/schJob.c
+++ b/source/libs/scheduler/src/schJob.c
@@ -614,7 +614,7 @@ int32_t schValidateAndBuildJob(SQueryPlan *pDag, SSchJob *pJob) {
       ++pJob->taskNum;
     }
 
-    SCH_JOB_DLOG("level initialized, taskNum:%d", taskNum);
+    SCH_JOB_DLOG("level %d initialized, taskNum:%d", i, taskNum);
   }
 
   SCH_ERR_JRET(schBuildTaskRalation(pJob, planToTask));
@@ -636,8 +636,9 @@ int32_t schSetAddrsFromNodeList(SSchJob *pJob, SSchTask *pTask) {
     nodeNum = taosArrayGetSize(pJob->nodeList);
 
     for (int32_t i = 0; i < nodeNum && addNum < SCH_MAX_CANDIDATE_EP_NUM; ++i) {
-      SQueryNodeAddr *naddr = taosArrayGet(pJob->nodeList, i);
-
+      SQueryNodeLoad *nload = taosArrayGet(pJob->nodeList, i);
+      SQueryNodeAddr *naddr = &nload->addr;
+      
       if (NULL == taosArrayPush(pTask->candidateAddrs, naddr)) {
         SCH_TASK_ELOG("taosArrayPush execNode to candidate addrs failed, addNum:%d, errno:%d", addNum, errno);
         SCH_ERR_RET(TSDB_CODE_QRY_OUT_OF_MEMORY);