Merge pull request #7544 from taosdata/hotfix/TD-6282

[td-6282]fix nested query no return issue

src/client/src/tscUtil.c

@@ -3778,6 +3778,8 @@ static void tscSubqueryCompleteCallback(void* param, TAOS_RES* tres, int code) {
     tscDebug("0x%"PRIx64" all subquery response received, retry", pParentSql->self);
 
     if (code && !((code == TSDB_CODE_TDB_INVALID_TABLE_ID || code == TSDB_CODE_VND_INVALID_VGROUP_ID) && pParentSql->retry < pParentSql->maxRetry)) {
+      pParentSql->res.code = code;
+      
       tscAsyncResultOnError(pParentSql);
       return;
     }
@@ -3858,6 +3860,7 @@ void executeQuery(SSqlObj* pSql, SQueryInfo* pQueryInfo) {
       pNew->signature = pNew;
       pNew->sqlstr    = strdup(pSql->sqlstr);
       pNew->fp        = tscSubqueryCompleteCallback;
+      pNew->fetchFp   = tscSubqueryCompleteCallback;
       pNew->maxRetry  = pSql->maxRetry;
 
       pNew->cmd.resColumnId = TSDB_RES_COL_ID;