diff --git a/src/kit/taosdemo/taosdemo.c b/src/kit/taosdemo/taosdemo.c
index 0831555d2270a11dabcc7b189e8168b4c170db06..f8d3f83d4741bac16deccb98e8301c4615a53963 100644
--- a/src/kit/taosdemo/taosdemo.c
+++ b/src/kit/taosdemo/taosdemo.c
@@ -114,12 +114,18 @@ typedef enum TALBE_EXISTS_EN {
   TBL_EXISTS_BUTT
 } TALBE_EXISTS_EN;
 
-enum MODE {
+enum enumSYNC_MODE {
   SYNC_MODE,
   ASYNC_MODE,
   MODE_BUT
 };
 
+typedef enum enumQUERY_CLASS {
+    SPECIFIED_CLASS,
+    STABLE_CLASS,
+    CLASS_BUT
+} QUERY_CLASS;
+
 typedef enum enum_INSERT_MODE {
     PROGRESSIVE_INSERT_MODE,
     INTERLACE_INSERT_MODE,
@@ -6557,18 +6563,21 @@ static void specified_sub_callback(
 }
 
 static TAOS_SUB* subscribeImpl(
+        QUERY_CLASS class,
         threadInfo *pThreadInfo,
-        char *sql, char* topic, bool restart)
+        char *sql, char* topic, bool restart, uint64_t interval)
 {
   TAOS_SUB* tsub = NULL;
 
-  if (ASYNC_MODE == g_queryInfo.specifiedQueryInfo.asyncMode) {
+  if ((SPECIFIED_CLASS == class)
+          && (ASYNC_MODE == g_queryInfo.specifiedQueryInfo.asyncMode)) {
     tsub = taos_subscribe(
             pThreadInfo->taos,
             restart,
             topic, sql, specified_sub_callback, (void*)pThreadInfo,
             g_queryInfo.specifiedQueryInfo.subscribeInterval);
-  } else if (ASYNC_MODE == g_queryInfo.superQueryInfo.asyncMode) {
+  } else if ((STABLE_CLASS == class)
+          && (ASYNC_MODE == g_queryInfo.superQueryInfo.asyncMode)) {
     tsub = taos_subscribe(
             pThreadInfo->taos,
             restart,
@@ -6578,7 +6587,7 @@ static TAOS_SUB* subscribeImpl(
     tsub = taos_subscribe(
             pThreadInfo->taos,
             restart,
-            topic, sql, NULL, NULL, 0);
+            topic, sql, NULL, NULL, interval);
   }
 
   if (tsub == NULL) {
@@ -6629,9 +6638,14 @@ static void *superSubscribe(void *sarg) {
   char topic[32] = {0};
   for (uint64_t i = pThreadInfo->start_table_from;
           i <= pThreadInfo->end_table_to; i++) {
+      verbosePrint("%s() LN%d, [%d], start=%"PRId64" end=%"PRId64" i=%"PRIu64"\n",
+              __func__, __LINE__,
+              pThreadInfo->threadID,
+              pThreadInfo->start_table_from,
+              pThreadInfo->end_table_to, i);
       sprintf(topic, "taosdemo-subscribe-%"PRIu64"-%"PRIu64"",
               i, pThreadInfo->querySeq);
-      memset(subSqlstr,0,sizeof(subSqlstr));
+      memset(subSqlstr, 0, sizeof(subSqlstr));
       replaceChildTblName(
               g_queryInfo.superQueryInfo.sql[pThreadInfo->querySeq],
               subSqlstr, i);
@@ -6644,8 +6658,10 @@ static void *superSubscribe(void *sarg) {
       debugPrint("%s() LN%d, [%d] subSqlstr: %s\n",
               __func__, __LINE__, pThreadInfo->threadID, subSqlstr);
       tsub[i] = subscribeImpl(
+              STABLE_CLASS,
               pThreadInfo, subSqlstr, topic,
-              g_queryInfo.superQueryInfo.subscribeRestart);
+              g_queryInfo.superQueryInfo.subscribeRestart,
+              g_queryInfo.superQueryInfo.subscribeInterval);
       if (NULL == tsub[i]) {
         taos_close(pThreadInfo->taos);
         return NULL;
@@ -6687,8 +6703,10 @@ static void *superSubscribe(void *sarg) {
                     g_queryInfo.superQueryInfo.subscribeKeepProgress);
                 consumed[i]= 0;
                 tsub[i] = subscribeImpl(
+                        STABLE_CLASS,
                         pThreadInfo, subSqlstr, topic,
-                        g_queryInfo.superQueryInfo.subscribeRestart
+                        g_queryInfo.superQueryInfo.subscribeRestart,
+                        g_queryInfo.superQueryInfo.subscribeInterval
                     );
                 if (NULL == tsub[i]) {
                     taos_close(pThreadInfo->taos);
@@ -6744,10 +6762,12 @@ static void *specifiedSubscribe(void *sarg) {
                 g_queryInfo.specifiedQueryInfo.result[pThreadInfo->querySeq],
                 pThreadInfo->threadID);
   }
-  tsub = subscribeImpl(pThreadInfo,
+  tsub = subscribeImpl(
+                      SPECIFIED_CLASS, pThreadInfo,
           g_queryInfo.specifiedQueryInfo.sql[pThreadInfo->querySeq],
           topic,
-          g_queryInfo.specifiedQueryInfo.subscribeRestart);
+          g_queryInfo.specifiedQueryInfo.subscribeRestart,
+          g_queryInfo.specifiedQueryInfo.subscribeInterval);
   if (NULL == tsub) {
       taos_close(pThreadInfo->taos);
       return NULL;
@@ -6777,11 +6797,12 @@ static void *specifiedSubscribe(void *sarg) {
               taos_unsubscribe(tsub,
                       g_queryInfo.specifiedQueryInfo.subscribeKeepProgress);
               tsub = subscribeImpl(
-                    pThreadInfo,
-                    g_queryInfo.specifiedQueryInfo.sql[pThreadInfo->querySeq],
-                    topic,
-                    g_queryInfo.specifiedQueryInfo.subscribeRestart
-                    );
+                      SPECIFIED_CLASS,
+                      pThreadInfo,
+                      g_queryInfo.specifiedQueryInfo.sql[pThreadInfo->querySeq],
+                      topic,
+                      g_queryInfo.specifiedQueryInfo.subscribeRestart,
+                      g_queryInfo.specifiedQueryInfo.subscribeInterval);
               if (NULL == tsub) {
                 taos_close(pThreadInfo->taos);
                 return NULL;
@@ -6833,7 +6854,7 @@ static int subscribeTestProcess() {
 
   //==== create threads for query for specified table
   if (g_queryInfo.specifiedQueryInfo.sqlCount <= 0) {
-    printf("%s() LN%d, sepcified query sqlCount %"PRIu64".\n",
+    debugPrint("%s() LN%d, sepcified query sqlCount %"PRIu64".\n",
               __func__, __LINE__,
               g_queryInfo.specifiedQueryInfo.sqlCount);
   } else {
@@ -6870,10 +6891,10 @@ static int subscribeTestProcess() {
   }
 
   //==== create threads for super table query
-  if (g_queryInfo.specifiedQueryInfo.sqlCount <= 0) {
-    printf("%s() LN%d, sepcified query sqlCount %"PRIu64".\n",
+  if (g_queryInfo.superQueryInfo.sqlCount <= 0) {
+    printf("%s() LN%d, super table query sqlCount %"PRIu64".\n",
               __func__, __LINE__,
-              g_queryInfo.specifiedQueryInfo.sqlCount);
+              g_queryInfo.superQueryInfo.sqlCount);
   } else {
     if ((g_queryInfo.superQueryInfo.sqlCount > 0)
           && (g_queryInfo.superQueryInfo.threadCnt > 0)) {
@@ -6906,8 +6927,8 @@ static int subscribeTestProcess() {
             b = ntables % threads;
         }
 
-        uint64_t startFrom = 0;
         for (uint64_t i = 0; i < g_queryInfo.superQueryInfo.sqlCount; i++) {
+            uint64_t startFrom = 0;
             for (int j = 0; j < threads; j++) {
                 uint64_t seq = i * threads + j;
                 threadInfo *t_info = infosOfStable + seq;