diff --git a/src/client/src/tscServer.c b/src/client/src/tscServer.c
index 5acb3237573e803e49d60db14399a94fc3e64533..d8621f526b65a32835f8e0345e955eac1cb9eb41 100644
--- a/src/client/src/tscServer.c
+++ b/src/client/src/tscServer.c
@@ -336,7 +336,6 @@ void tscProcessMsgFromServer(SRpcMsg *rpcMsg, SRpcIpSet *pIpSet) {
   if (rpcMsg->code != TSDB_CODE_ACTION_IN_PROGRESS) {
     rpcMsg->code = (pRes->code == TSDB_CODE_SUCCESS) ? pRes->numOfRows: pRes->code;
     
-    tscTrace("%p SQL result:%s res:%p", pSql, tstrerror(pRes->code), pSql);
     bool shouldFree = tscShouldBeFreed(pSql);
     (*pSql->fp)(pSql->param, pSql, rpcMsg->code);
 
diff --git a/src/client/src/tscUtil.c b/src/client/src/tscUtil.c
index 57db775a5093604c56bce3d972910fe055f464fa..1b9fec7211540062f56dc29b1fcf1fdf795b89f4 100644
--- a/src/client/src/tscUtil.c
+++ b/src/client/src/tscUtil.c
@@ -404,8 +404,6 @@ void tscPartiallyFreeSqlObj(SSqlObj* pSql) {
   pSql->numOfSubs = 0;
   
   tscResetSqlCmdObj(pCmd);
-  
-  tscTrace("%p partially free sqlObj completed", pSql);
 }
 
 void tscFreeSqlObj(SSqlObj* pSql) {
diff --git a/src/mnode/src/mnodeTable.c b/src/mnode/src/mnodeTable.c
index 56592aff4b61af17bd8a6261724da619c5fe3f7b..bb4ea49f23e427e05caa333de4cc687b94ffc466 100644
--- a/src/mnode/src/mnodeTable.c
+++ b/src/mnode/src/mnodeTable.c
@@ -1284,7 +1284,7 @@ static int32_t mnodeProcessSuperTableVgroupMsg(SMnodeMsg *pMsg) {
   char *msg = (char *)pRsp + sizeof(SCMSTableVgroupRspMsg);
 
   for (int32_t i = 0; i < numOfTable; ++i) {
-    char *stableName = (char*)pInfo + sizeof(SCMSTableVgroupMsg) + (TSDB_TABLE_ID_LEN) * i;
+    char *          stableName = (char *)pInfo + sizeof(SCMSTableVgroupMsg) + (TSDB_TABLE_ID_LEN)*i;
     SSuperTableObj *pTable = mnodeGetSuperTable(stableName);
     if (pTable == NULL) {
       mError("stable:%s, not exist while get stable vgroup info", stableName);
@@ -1294,41 +1294,48 @@ static int32_t mnodeProcessSuperTableVgroupMsg(SMnodeMsg *pMsg) {
     if (pTable->vgHash == NULL) {
       mError("stable:%s, not vgroup exist while get stable vgroup info", stableName);
       mnodeDecTableRef(pTable);
-      continue;
-    }
 
-    SVgroupsInfo *pVgroupInfo = (SVgroupsInfo *)msg;
+      // even this super table has no corresponding table, still return
+      pRsp->numOfTables++;
 
-    SHashMutableIterator *pIter = taosHashCreateIter(pTable->vgHash);
-    int32_t vgSize = 0;
-    while (taosHashIterNext(pIter)) {
-      int32_t *pVgId = taosHashIterGet(pIter);
-      SVgObj * pVgroup = mnodeGetVgroup(*pVgId);
-      if (pVgroup == NULL) continue;
+      SVgroupsInfo *pVgroupInfo = (SVgroupsInfo *)msg;
+      pVgroupInfo->numOfVgroups = 0;
+      
+      msg += sizeof(SVgroupsInfo);
+    } else {
+      SVgroupsInfo *pVgroupInfo = (SVgroupsInfo *)msg;
 
-      pVgroupInfo->vgroups[vgSize].vgId = htonl(pVgroup->vgId);
-      for (int32_t vn = 0; vn < pVgroup->numOfVnodes; ++vn) {
-        SDnodeObj *pDnode = pVgroup->vnodeGid[vn].pDnode;
-        if (pDnode == NULL) break;
+      SHashMutableIterator *pIter = taosHashCreateIter(pTable->vgHash);
+      int32_t               vgSize = 0;
+      while (taosHashIterNext(pIter)) {
+        int32_t *pVgId = taosHashIterGet(pIter);
+        SVgObj * pVgroup = mnodeGetVgroup(*pVgId);
+        if (pVgroup == NULL) continue;
 
-        strncpy(pVgroupInfo->vgroups[vgSize].ipAddr[vn].fqdn, pDnode->dnodeFqdn, tListLen(pDnode->dnodeFqdn));
-        pVgroupInfo->vgroups[vgSize].ipAddr[vn].port = htons(pDnode->dnodePort);
+        pVgroupInfo->vgroups[vgSize].vgId = htonl(pVgroup->vgId);
+        for (int32_t vn = 0; vn < pVgroup->numOfVnodes; ++vn) {
+          SDnodeObj *pDnode = pVgroup->vnodeGid[vn].pDnode;
+          if (pDnode == NULL) break;
 
-        pVgroupInfo->vgroups[vgSize].numOfIps++;
-      }
+          strncpy(pVgroupInfo->vgroups[vgSize].ipAddr[vn].fqdn, pDnode->dnodeFqdn, tListLen(pDnode->dnodeFqdn));
+          pVgroupInfo->vgroups[vgSize].ipAddr[vn].port = htons(pDnode->dnodePort);
 
-      vgSize++;
-      mnodeDecVgroupRef(pVgroup);
-    }
+          pVgroupInfo->vgroups[vgSize].numOfIps++;
+        }
 
-    taosHashDestroyIter(pIter);
-    mnodeDecTableRef(pTable);
+        vgSize++;
+        mnodeDecVgroupRef(pVgroup);
+      }
+
+      taosHashDestroyIter(pIter);
+      mnodeDecTableRef(pTable);
 
-    pVgroupInfo->numOfVgroups = htonl(vgSize);
+      pVgroupInfo->numOfVgroups = htonl(vgSize);
 
-    // one table is done, try the next table
-    msg += sizeof(SVgroupsInfo) + vgSize * sizeof(SCMVgroupInfo);
-    pRsp->numOfTables++;
+      // one table is done, try the next table
+      msg += sizeof(SVgroupsInfo) + vgSize * sizeof(SCMVgroupInfo);
+      pRsp->numOfTables++;
+    }
   }
 
   if (pRsp->numOfTables != numOfTable) {