diff --git a/src/query/src/queryExecutor.c b/src/query/src/queryExecutor.c
index 8bd2052ef810009d423560612360c021cbfb4459..24f0f53ca5a6cb4006b7ab1528a2b3ad5092da61 100644
--- a/src/query/src/queryExecutor.c
+++ b/src/query/src/queryExecutor.c
@@ -4185,6 +4185,12 @@ int32_t doInitQInfo(SQInfo *pQInfo, void *param, void *tsdb, int32_t vgId, bool
       pRuntimeEnv->pQueryHandle = tsdbQueryLastRow(tsdb, &cond, &pQInfo->tableIdGroupInfo);
     } else if (!isSTableQuery || isIntervalQuery(pQuery) || isFixedOutputQuery(pQuery)) {
 
+      if(pQInfo->groupInfo.numOfTables == 1) {
+        SArray* pa = taosArrayGetP(pQInfo->groupInfo.pGroupList, 0);
+        SGroupItem* pItem = taosArrayGet(pa, 0);
+        cond.twindow = pItem->info->win;
+      }
+
       pRuntimeEnv->pQueryHandle = tsdbQueryTables(tsdb, &cond, &pQInfo->tableIdGroupInfo);
     }
   }
@@ -4903,6 +4909,12 @@ static void tableMultiOutputProcess(SQInfo *pQInfo, STableQueryInfo* pTableInfo)
   if (Q_STATUS_EQUAL(pQuery->status, QUERY_RESBUF_FULL)) {
     qTrace("QInfo:%p query paused due to output limitation, next qrange:%" PRId64 "-%" PRId64, pQInfo,
         pQuery->current->lastKey, pQuery->window.ekey);
+  } else if (Q_STATUS_EQUAL(pQuery->status, QUERY_COMPLETED)) {
+    STableIdInfo tidInfo;
+    tidInfo.uid = pQuery->current->id.uid;
+    tidInfo.tid = pQuery->current->id.tid;
+    tidInfo.key = pQuery->current->lastKey;
+    taosArrayPush(pQInfo->arrTableIdInfo, &tidInfo);
   }
 
   if (!isTSCompQuery(pQuery)) {
@@ -5195,7 +5207,6 @@ static char *createTableIdList(SQueryTableMsg *pQueryMsg, char *pMsg, SArray **p
     pTableIdInfo->uid = htobe64(pTableIdInfo->uid);
     pTableIdInfo->key = htobe64(pTableIdInfo->key);
 
-printf("createTableIdList: uid = %ld, key = %ld\n", pTableIdInfo->uid, pTableIdInfo->key);
     taosArrayPush(*pTableIdList, pTableIdInfo);
     pMsg += sizeof(STableIdInfo);
   }
@@ -5759,7 +5770,6 @@ static SQInfo *createQInfoImpl(SQueryTableMsg *pQueryMsg, SArray* pTableIdList,
       // not a problem at present because we only use their 1st int64_t field
       STableIdInfo* pTableId = taosArraySearch( pTableIdList, compareTableIdInfo, &id );
       if (pTableId != NULL ) {
-        printf("create QInfoImpl: %ld  %ld\n", pTableId->uid, pTableId->key);
         window.skey = pTableId->key;
       } else {
         window.skey = INT64_MIN;
diff --git a/tests/examples/c/subscribe.c b/tests/examples/c/subscribe.c
index 0bf93f6f2ddd81e715e7d9cf0b5abfd054635060..f9acf2bb10d36740dc5b82704e18256c4421ba5e 100644
--- a/tests/examples/c/subscribe.c
+++ b/tests/examples/c/subscribe.c
@@ -56,32 +56,46 @@ void run_test(TAOS* taos) {
   taos_query(taos, "drop database if exists test;");
   
   usleep(100000);
-  taos_query(taos, "create database test tables 5;");
+  //taos_query(taos, "create database test tables 5;");
+  taos_query(taos, "create database test;");
   usleep(100000);
   taos_query(taos, "use test;");
+
   usleep(100000);
-  taos_query(taos, "create table meters(ts timestamp, a int, b binary(20)) tags(loc binary(20), area int);");
-
-  taos_query(taos, "insert into t0 using meters tags('beijing', 0) values('2020-01-01 00:00:00.000', 0, 'china');");
-  taos_query(taos, "insert into t0 using meters tags('beijing', 0) values('2020-01-01 00:01:00.000', 0, 'china');");
-  taos_query(taos, "insert into t0 using meters tags('beijing', 0) values('2020-01-01 00:02:00.000', 0, 'china');");
-  taos_query(taos, "insert into t1 using meters tags('shanghai', 0) values('2020-01-01 00:00:00.000', 0, 'china');");
-  taos_query(taos, "insert into t1 using meters tags('shanghai', 0) values('2020-01-01 00:01:00.000', 0, 'china');");
-  taos_query(taos, "insert into t1 using meters tags('shanghai', 0) values('2020-01-01 00:02:00.000', 0, 'china');");
-  taos_query(taos, "insert into t1 using meters tags('shanghai', 0) values('2020-01-01 00:03:00.000', 0, 'china');");
-  taos_query(taos, "insert into t2 using meters tags('london', 0) values('2020-01-01 00:00:00.000', 0, 'UK');");
-  taos_query(taos, "insert into t2 using meters tags('london', 0) values('2020-01-01 00:01:00.000', 0, 'UK');");
-  taos_query(taos, "insert into t2 using meters tags('london', 0) values('2020-01-01 00:01:01.000', 0, 'UK');");
-  taos_query(taos, "insert into t2 using meters tags('london', 0) values('2020-01-01 00:01:02.000', 0, 'UK');");
-  taos_query(taos, "insert into t3 using meters tags('tianjin', 0) values('2020-01-01 00:01:02.000', 0, 'china');");
-  taos_query(taos, "insert into t4 using meters tags('wuhan', 0) values('2020-01-01 00:01:02.000', 0, 'china');");
-  taos_query(taos, "insert into t5 using meters tags('jinan', 0) values('2020-01-01 00:01:02.000', 0, 'china');");
-  taos_query(taos, "insert into t6 using meters tags('haikou', 0) values('2020-01-01 00:01:02.000', 0, 'china');");
-  taos_query(taos, "insert into t7 using meters tags('nanjing', 0) values('2020-01-01 00:01:02.000', 0, 'china');");
-  taos_query(taos, "insert into t8 using meters tags('lanzhou', 0) values('2020-01-01 00:01:02.000', 0, 'china');");
-  taos_query(taos, "insert into t9 using meters tags('tokyo', 0) values('2020-01-01 00:01:02.000', 0, 'japan');");
+  taos_query(taos, "create table meters(ts timestamp, a int) tags(area int);");
+
+  taos_query(taos, "create table t0 using meters tags(0);");
+  taos_query(taos, "create table t1 using meters tags(1);");
+  taos_query(taos, "create table t2 using meters tags(2);");
+  taos_query(taos, "create table t3 using meters tags(3);");
+  taos_query(taos, "create table t4 using meters tags(4);");
+  taos_query(taos, "create table t5 using meters tags(5);");
+  taos_query(taos, "create table t6 using meters tags(6);");
+  taos_query(taos, "create table t7 using meters tags(7);");
+  taos_query(taos, "create table t8 using meters tags(8);");
+  taos_query(taos, "create table t9 using meters tags(9);");
+
+  taos_query(taos, "insert into t0 values('2020-01-01 00:00:00.000', 0);");
+  taos_query(taos, "insert into t0 values('2020-01-01 00:01:00.000', 0);");
+  taos_query(taos, "insert into t0 values('2020-01-01 00:02:00.000', 0);");
+  taos_query(taos, "insert into t1 values('2020-01-01 00:00:00.000', 0);");
+  taos_query(taos, "insert into t1 values('2020-01-01 00:01:00.000', 0);");
+  taos_query(taos, "insert into t1 values('2020-01-01 00:02:00.000', 0);");
+  taos_query(taos, "insert into t1 values('2020-01-01 00:03:00.000', 0);");
+  taos_query(taos, "insert into t2 values('2020-01-01 00:00:00.000', 0);");
+  taos_query(taos, "insert into t2 values('2020-01-01 00:01:00.000', 0);");
+  taos_query(taos, "insert into t2 values('2020-01-01 00:01:01.000', 0);");
+  taos_query(taos, "insert into t2 values('2020-01-01 00:01:02.000', 0);");
+  taos_query(taos, "insert into t3 values('2020-01-01 00:01:02.000', 0);");
+  taos_query(taos, "insert into t4 values('2020-01-01 00:01:02.000', 0);");
+  taos_query(taos, "insert into t5 values('2020-01-01 00:01:02.000', 0);");
+  taos_query(taos, "insert into t6 values('2020-01-01 00:01:02.000', 0);");
+  taos_query(taos, "insert into t7 values('2020-01-01 00:01:02.000', 0);");
+  taos_query(taos, "insert into t8 values('2020-01-01 00:01:02.000', 0);");
+  taos_query(taos, "insert into t9 values('2020-01-01 00:01:02.000', 0);");
 
   // super tables subscription
+  usleep(1000000);
 
   TAOS_SUB* tsub = taos_subscribe(taos, 0, "test", "select * from meters;", NULL, NULL, 0);
   TAOS_RES* res = taos_consume(tsub);
@@ -90,23 +104,23 @@ void run_test(TAOS* taos) {
   res = taos_consume(tsub);
   check_row_count(__LINE__, res, 0);
 
-  taos_query(taos, "insert into t0 values('2020-01-01 00:03:00.000', 0, 'china');");
-  taos_query(taos, "insert into t8 values('2020-01-01 00:01:03.000', 0, 'china');");
+  taos_query(taos, "insert into t0 values('2020-01-01 00:02:00.001', 0);");
+  taos_query(taos, "insert into t8 values('2020-01-01 00:01:03.000', 0);");
   res = taos_consume(tsub);
   check_row_count(__LINE__, res, 2);
 
-  taos_query(taos, "insert into t2 values('2020-01-01 00:01:02.001', 0, 'UK');");
-  taos_query(taos, "insert into t1 values('2020-01-01 00:03:00.001', 0, 'UK');");
+  taos_query(taos, "insert into t2 values('2020-01-01 00:01:02.001', 0);");
+  taos_query(taos, "insert into t1 values('2020-01-01 00:03:00.001', 0);");
   res = taos_consume(tsub);
   check_row_count(__LINE__, res, 2);
 
-  taos_query(taos, "insert into t1 values('2020-01-01 00:03:00.002', 0, 'china');");
+  taos_query(taos, "insert into t1 values('2020-01-01 00:03:00.002', 0);");
   res = taos_consume(tsub);
   check_row_count(__LINE__, res, 1);
 
   // keep progress information and restart subscription
   taos_unsubscribe(tsub, 1);
-  taos_query(taos, "insert into t0 values('2020-01-01 00:04:00.000', 0, 'china');");
+  taos_query(taos, "insert into t0 values('2020-01-01 00:04:00.000', 0);");
   tsub = taos_subscribe(taos, 1, "test", "select * from meters;", NULL, NULL, 0);
   res = taos_consume(tsub);
   check_row_count(__LINE__, res, 24);
@@ -133,7 +147,7 @@ void run_test(TAOS* taos) {
   res = taos_consume(tsub);
   check_row_count(__LINE__, res, 0);
 
-  taos_query(taos, "insert into t0 values('2020-01-01 00:04:00.001', 0, 'china');");
+  taos_query(taos, "insert into t0 values('2020-01-01 00:04:00.001', 0);");
   res = taos_consume(tsub);
   check_row_count(__LINE__, res, 1);
 
@@ -197,7 +211,7 @@ int main(int argc, char *argv[]) {
   // init TAOS
   taos_init();
 
-  TAOS* taos = taos_connect(host, user, passwd, "test", 0);
+  TAOS* taos = taos_connect(host, user, passwd, "", 0);
   if (taos == NULL) {
     printf("failed to connect to db, reason:%s\n", taos_errstr(taos));
     exit(1);
@@ -209,6 +223,7 @@ int main(int argc, char *argv[]) {
     exit(0);
   }
 
+  taos_query(taos, "use test;");
   TAOS_SUB* tsub = NULL;
   if (async) {
     // create an asynchronized subscription, the callback function will be called every 1s