diff --git a/README.md b/README.md
index 1034a19f37a37085e9ad2bacbad1a6fd05a91321..fe9bb49ed8d70afb7b1f3a84933efd62b672229e 100644
--- a/README.md
+++ b/README.md
@@ -321,7 +321,11 @@ TDengine provides abundant developing tools for users to develop on TDengine. Fo
 
 Please follow the [contribution guidelines](CONTRIBUTING.md) to contribute to the project.
 
-# Join TDengine User Community
+# Join the TDengine Community
 
-- Join [TDengine Discord Channel](https://discord.com/invite/VZdSuUg4pS?utm_id=discord)
-- Join wechat group by adding WeChat “tdengine”
+For more information about TDengine, you can follow us on social media and join our Discord server:
+
+- [Discord](https://discord.com/invite/VZdSuUg4pS)
+- [Twitter](https://twitter.com/TaosData)
+- [LinkedIn](https://www.linkedin.com/company/tdengine/)
+- [YouTube](https://www.youtube.com/channel/UCmp-1U6GS_3V3hjir6Uq5DQ)
diff --git a/cmake/taostools_CMakeLists.txt.in b/cmake/taostools_CMakeLists.txt.in
index 52e2c0944a78ed0114001494e2edd73e3e88049d..39f243d1478a7a947c13d8e6aefe9906ea202790 100644
--- a/cmake/taostools_CMakeLists.txt.in
+++ b/cmake/taostools_CMakeLists.txt.in
@@ -2,7 +2,7 @@
 # taos-tools
 ExternalProject_Add(taos-tools
         GIT_REPOSITORY https://github.com/taosdata/taos-tools.git
-        GIT_TAG 8207c74
+        GIT_TAG cf1df1c
         SOURCE_DIR "${TD_SOURCE_DIR}/tools/taos-tools"
         BINARY_DIR ""
         #BUILD_IN_SOURCE TRUE
diff --git a/docs/zh/07-develop/06-stream.md b/docs/zh/07-develop/06-stream.md
index d5296582d500e3271130bc1bfc6de34492133a8a..c9f1b1d43a3b8666e747db80b5e34473f45f0675 100644
--- a/docs/zh/07-develop/06-stream.md
+++ b/docs/zh/07-develop/06-stream.md
@@ -52,7 +52,7 @@ CREATE TABLE d1004 USING meters TAGS ("California.LosAngeles", 3);
 ### 创建流
 
 ```sql
-create stream current_stream into current_stream_output_stb as select _wstart as start, _wend as end, max(current) as max_current from meters where voltage <= 220 interval (5s);
+create stream current_stream into current_stream_output_stb as select _wstart as start, _wend as wend, max(current) as max_current from meters where voltage <= 220 interval (5s);
 ```
 
 ### 写入数据
@@ -71,7 +71,7 @@ insert into d1004 values("2018-10-03 14:38:06.500", 11.50000, 221, 0.35000);
 
 ```sql
 taos> select start, end, max_current from current_stream_output_stb;
-          start          |           end           |     max_current      |
+          start          |          wend           |     max_current      |
 ===========================================================================
  2018-10-03 14:38:05.000 | 2018-10-03 14:38:10.000 |             10.30000 |
  2018-10-03 14:38:15.000 | 2018-10-03 14:38:20.000 |             12.60000 |
diff --git a/include/libs/nodes/plannodes.h b/include/libs/nodes/plannodes.h
index 07994d65d262eba7cabb4c575e8d77b5efa69245..a531eeffdee9dbd94318ec73c08f076311f1bb3b 100644
--- a/include/libs/nodes/plannodes.h
+++ b/include/libs/nodes/plannodes.h
@@ -165,7 +165,8 @@ typedef struct SVnodeModifyLogicNode {
 
 typedef struct SExchangeLogicNode {
   SLogicNode node;
-  int32_t    srcGroupId;
+  int32_t    srcStartGroupId;
+  int32_t    srcEndGroupId;
 } SExchangeLogicNode;
 
 typedef struct SMergeLogicNode {
@@ -400,7 +401,10 @@ typedef struct SDownstreamSourceNode {
 
 typedef struct SExchangePhysiNode {
   SPhysiNode node;
-  int32_t    srcGroupId;  // group id of datasource suplans
+  // for set operators, there will be multiple execution groups under one exchange, and the ids of these execution
+  // groups are consecutive
+  int32_t    srcStartGroupId;
+  int32_t    srcEndGroupId;
   bool       singleChannel;
   SNodeList* pSrcEndPoints;  // element is SDownstreamSource, scheduler fill by calling qSetSuplanExecutionNode
 } SExchangePhysiNode;
diff --git a/source/dnode/vnode/src/meta/metaQuery.c b/source/dnode/vnode/src/meta/metaQuery.c
index 24ade017d37f73e83b09578ea5b2211c5b2c43a5..f549ef84f80012b7969a2776e87a18a9e94120ae 100644
--- a/source/dnode/vnode/src/meta/metaQuery.c
+++ b/source/dnode/vnode/src/meta/metaQuery.c
@@ -291,25 +291,25 @@ _query:
       tDecoderClear(&dc);
       goto _exit;
     }
-    { // Traverse to find the previous qualified data
-      TBC      *pCur;
+    {  // Traverse to find the previous qualified data
+      TBC *pCur;
       tdbTbcOpen(pMeta->pTbDb, &pCur, NULL);
       STbDbKey key = {.version = sver, .uid = INT64_MAX};
-      int c = 0;
+      int      c = 0;
       tdbTbcMoveTo(pCur, &key, sizeof(key), &c);
-      if(c < 0){
+      if (c < 0) {
         tdbTbcMoveToPrev(pCur);
       }
 
       void *pKey = NULL;
       void *pVal = NULL;
       int   vLen = 0, kLen = 0;
-      while(1){
+      while (1) {
         int32_t ret = tdbTbcPrev(pCur, &pKey, &kLen, &pVal, &vLen);
         if (ret < 0) break;
 
-        STbDbKey *tmp = (STbDbKey*)pKey;
-        if(tmp->uid != uid){
+        STbDbKey *tmp = (STbDbKey *)pKey;
+        if (tmp->uid != uid) {
           continue;
         }
         SDecoder   dcNew = {0};
@@ -662,12 +662,13 @@ int64_t metaGetTbNum(SMeta *pMeta) {
 // N.B. Called by statusReq per second
 int64_t metaGetTimeSeriesNum(SMeta *pMeta) {
   // sum of (number of columns of stable -  1) * number of ctables (excluding timestamp column)
-  if (pMeta->pVnode->config.vndStats.numOfTimeSeries <= 0 || ++pMeta->pVnode->config.vndStats.itvTimeSeries % 60 == 0) {
+  if (pMeta->pVnode->config.vndStats.numOfTimeSeries <= 0 ||
+      ++pMeta->pVnode->config.vndStats.itvTimeSeries % (60 * 5) == 0) {
     int64_t num = 0;
     vnodeGetTimeSeriesNum(pMeta->pVnode, &num);
     pMeta->pVnode->config.vndStats.numOfTimeSeries = num;
 
-    pMeta->pVnode->config.vndStats.itvTimeSeries = 0;
+    pMeta->pVnode->config.vndStats.itvTimeSeries = (TD_VID(pMeta->pVnode) % 100) * 2;
   }
 
   return pMeta->pVnode->config.vndStats.numOfTimeSeries + pMeta->pVnode->config.vndStats.numOfNTimeSeries;
diff --git a/source/dnode/vnode/src/tq/tqMeta.c b/source/dnode/vnode/src/tq/tqMeta.c
index 62f8debccb8ff9c478de0fb331cc5741b503b011..c55e1059cf8842dccd7d6553d9cff5448dbc5ba5 100644
--- a/source/dnode/vnode/src/tq/tqMeta.c
+++ b/source/dnode/vnode/src/tq/tqMeta.c
@@ -25,17 +25,17 @@ int32_t tEncodeSTqHandle(SEncoder* pEncoder, const STqHandle* pHandle) {
   if (tEncodeI8(pEncoder, pHandle->execHandle.subType) < 0) return -1;
   if (pHandle->execHandle.subType == TOPIC_SUB_TYPE__COLUMN) {
     if (tEncodeCStr(pEncoder, pHandle->execHandle.execCol.qmsg) < 0) return -1;
-  } else if(pHandle->execHandle.subType == TOPIC_SUB_TYPE__DB){
+  } else if (pHandle->execHandle.subType == TOPIC_SUB_TYPE__DB) {
     int32_t size = taosHashGetSize(pHandle->execHandle.execDb.pFilterOutTbUid);
     if (tEncodeI32(pEncoder, size) < 0) return -1;
-    void *pIter = NULL;
+    void* pIter = NULL;
     pIter = taosHashIterate(pHandle->execHandle.execDb.pFilterOutTbUid, pIter);
-    while(pIter){
-      int64_t *tbUid = (int64_t *)taosHashGetKey(pIter, NULL);
+    while (pIter) {
+      int64_t* tbUid = (int64_t*)taosHashGetKey(pIter, NULL);
       if (tEncodeI64(pEncoder, *tbUid) < 0) return -1;
       pIter = taosHashIterate(pHandle->execHandle.execDb.pFilterOutTbUid, pIter);
     }
-  } else if(pHandle->execHandle.subType == TOPIC_SUB_TYPE__TABLE){
+  } else if (pHandle->execHandle.subType == TOPIC_SUB_TYPE__TABLE) {
     if (tEncodeI64(pEncoder, pHandle->execHandle.execTb.suid) < 0) return -1;
   }
   tEndEncode(pEncoder);
@@ -52,17 +52,17 @@ int32_t tDecodeSTqHandle(SDecoder* pDecoder, STqHandle* pHandle) {
   if (tDecodeI8(pDecoder, &pHandle->execHandle.subType) < 0) return -1;
   if (pHandle->execHandle.subType == TOPIC_SUB_TYPE__COLUMN) {
     if (tDecodeCStrAlloc(pDecoder, &pHandle->execHandle.execCol.qmsg) < 0) return -1;
-  }else if(pHandle->execHandle.subType == TOPIC_SUB_TYPE__DB){
+  } else if (pHandle->execHandle.subType == TOPIC_SUB_TYPE__DB) {
     pHandle->execHandle.execDb.pFilterOutTbUid =
         taosHashInit(64, taosGetDefaultHashFunction(TSDB_DATA_TYPE_BIGINT), false, HASH_NO_LOCK);
     int32_t size = 0;
     if (tDecodeI32(pDecoder, &size) < 0) return -1;
-    for(int32_t i = 0; i < size; i++){
+    for (int32_t i = 0; i < size; i++) {
       int64_t tbUid = 0;
       if (tDecodeI64(pDecoder, &tbUid) < 0) return -1;
       taosHashPut(pHandle->execHandle.execDb.pFilterOutTbUid, &tbUid, sizeof(int64_t), NULL, 0);
     }
-  } else if(pHandle->execHandle.subType == TOPIC_SUB_TYPE__TABLE){
+  } else if (pHandle->execHandle.subType == TOPIC_SUB_TYPE__TABLE) {
     if (tDecodeI64(pDecoder, &pHandle->execHandle.execTb.suid) < 0) return -1;
   }
   tEndDecode(pDecoder);
@@ -117,7 +117,7 @@ int32_t tqMetaSaveCheckInfo(STQ* pTq, const char* key, const void* value, int32_
     return -1;
   }
 
-  if (tdbTbUpsert(pTq->pExecStore, key, strlen(key), value, vLen, &txn) < 0) {
+  if (tdbTbUpsert(pTq->pCheckStore, key, strlen(key), value, vLen, &txn) < 0) {
     return -1;
   }
 
@@ -284,7 +284,6 @@ int32_t tqMetaRestoreHandle(STQ* pTq) {
     };
 
     if (handle.execHandle.subType == TOPIC_SUB_TYPE__COLUMN) {
-
       handle.execHandle.task = qCreateQueueExecTaskInfo(
           handle.execHandle.execCol.qmsg, &reader, &handle.execHandle.numOfCols, &handle.execHandle.pSchemaWrapper);
       ASSERT(handle.execHandle.task);
@@ -297,9 +296,9 @@ int32_t tqMetaRestoreHandle(STQ* pTq) {
       handle.pWalReader = walOpenReader(pTq->pVnode->pWal, NULL);
       handle.execHandle.pExecReader = tqOpenReader(pTq->pVnode);
 
-      buildSnapContext(reader.meta, reader.version, 0, handle.execHandle.subType, handle.fetchMeta, (SSnapContext **)(&reader.sContext));
-      handle.execHandle.task =
-          qCreateQueueExecTaskInfo(NULL, &reader, NULL, NULL);
+      buildSnapContext(reader.meta, reader.version, 0, handle.execHandle.subType, handle.fetchMeta,
+                       (SSnapContext**)(&reader.sContext));
+      handle.execHandle.task = qCreateQueueExecTaskInfo(NULL, &reader, NULL, NULL);
     } else if (handle.execHandle.subType == TOPIC_SUB_TYPE__TABLE) {
       handle.pWalReader = walOpenReader(pTq->pVnode->pWal, NULL);
 
@@ -314,9 +313,9 @@ int32_t tqMetaRestoreHandle(STQ* pTq) {
       tqReaderSetTbUidList(handle.execHandle.pExecReader, tbUidList);
       taosArrayDestroy(tbUidList);
 
-      buildSnapContext(reader.meta, reader.version, handle.execHandle.execTb.suid, handle.execHandle.subType, handle.fetchMeta, (SSnapContext **)(&reader.sContext));
-      handle.execHandle.task =
-          qCreateQueueExecTaskInfo(NULL, &reader, NULL, NULL);
+      buildSnapContext(reader.meta, reader.version, handle.execHandle.execTb.suid, handle.execHandle.subType,
+                       handle.fetchMeta, (SSnapContext**)(&reader.sContext));
+      handle.execHandle.task = qCreateQueueExecTaskInfo(NULL, &reader, NULL, NULL);
     }
     tqDebug("tq restore %s consumer %" PRId64 " vgId:%d", handle.subKey, handle.consumerId, TD_VID(pTq->pVnode));
     taosHashPut(pTq->pHandle, pKey, kLen, &handle, sizeof(STqHandle));
diff --git a/source/dnode/vnode/src/tsdb/tsdbRead.c b/source/dnode/vnode/src/tsdb/tsdbRead.c
index ca6f6346a603059df24e70143f1f39832de1bcf8..681b25f67684f9846da940f10c4a24e696985acb 100644
--- a/source/dnode/vnode/src/tsdb/tsdbRead.c
+++ b/source/dnode/vnode/src/tsdb/tsdbRead.c
@@ -1287,14 +1287,14 @@ static bool doCheckforDatablockOverlap(STableBlockScanInfo* pBlockScanInfo, cons
       if (p->version >= pBlock->minVer) {
         if (i < num - 1) {
           TSDBKEY* pnext = taosArrayGet(pBlockScanInfo->delSkyline, i + 1);
-          if (i + 1 == num - 1) {  // pnext is the last point
+//          if (i + 1 == num - 1) {  // pnext is the last point
             if (pnext->ts >= pBlock->minKey.ts) {
               return true;
-            }
-          } else {
-            if (pnext->ts >= pBlock->minKey.ts && pnext->version >= pBlock->minVer) {
-              return true;
-            }
+//            }
+//          } else {
+//            if (pnext->ts >= pBlock->minKey.ts) {
+//              return true;
+//            }
           }
         } else {  // it must be the last point
           ASSERT(p->version == 0);
diff --git a/source/libs/command/src/explain.c b/source/libs/command/src/explain.c
index b50aab9b1e63773770ce0e491eda109f530a95f7..c5de44e1f67d3e4843a0357be88bbac730fc2d99 100644
--- a/source/libs/command/src/explain.c
+++ b/source/libs/command/src/explain.c
@@ -777,9 +777,9 @@ int32_t qExplainResNodeToRowsImpl(SExplainResNode *pResNode, SExplainCtx *ctx, i
     }
     case QUERY_NODE_PHYSICAL_PLAN_EXCHANGE: {
       SExchangePhysiNode *pExchNode = (SExchangePhysiNode *)pNode;
-      SExplainGroup      *group = taosHashGet(ctx->groupHash, &pExchNode->srcGroupId, sizeof(pExchNode->srcGroupId));
+      SExplainGroup      *group = taosHashGet(ctx->groupHash, &pExchNode->srcStartGroupId, sizeof(pExchNode->srcStartGroupId));
       if (NULL == group) {
-        qError("exchange src group %d not in groupHash", pExchNode->srcGroupId);
+        qError("exchange src group %d not in groupHash", pExchNode->srcStartGroupId);
         QRY_ERR_RET(TSDB_CODE_QRY_APP_ERROR);
       }
 
@@ -814,7 +814,7 @@ int32_t qExplainResNodeToRowsImpl(SExplainResNode *pResNode, SExplainCtx *ctx, i
         }      
       }
 
-      QRY_ERR_RET(qExplainAppendGroupResRows(ctx, pExchNode->srcGroupId, level + 1, pExchNode->singleChannel));
+      QRY_ERR_RET(qExplainAppendGroupResRows(ctx, pExchNode->srcStartGroupId, level + 1, pExchNode->singleChannel));
       break;
     }
     case QUERY_NODE_PHYSICAL_PLAN_SORT: {
diff --git a/source/libs/nodes/src/nodesCloneFuncs.c b/source/libs/nodes/src/nodesCloneFuncs.c
index f353efcf3ccdb58e91f6a1dc1bc9da78792401e4..c145952778aa17fb660a4732e2c0d6c068de521a 100644
--- a/source/libs/nodes/src/nodesCloneFuncs.c
+++ b/source/libs/nodes/src/nodesCloneFuncs.c
@@ -429,7 +429,8 @@ static int32_t logicVnodeModifCopy(const SVnodeModifyLogicNode* pSrc, SVnodeModi
 
 static int32_t logicExchangeCopy(const SExchangeLogicNode* pSrc, SExchangeLogicNode* pDst) {
   COPY_BASE_OBJECT_FIELD(node, logicNodeCopy);
-  COPY_SCALAR_FIELD(srcGroupId);
+  COPY_SCALAR_FIELD(srcStartGroupId);
+  COPY_SCALAR_FIELD(srcEndGroupId);
   return TSDB_CODE_SUCCESS;
 }
 
diff --git a/source/libs/nodes/src/nodesCodeFuncs.c b/source/libs/nodes/src/nodesCodeFuncs.c
index 3242f20830662e2b0558790aee746d8c00dc09a7..af6c1757a9173dd0b9aeb649b07a3c7edcbc3002 100644
--- a/source/libs/nodes/src/nodesCodeFuncs.c
+++ b/source/libs/nodes/src/nodesCodeFuncs.c
@@ -726,14 +726,18 @@ static int32_t jsonToLogicVnodeModifyNode(const SJson* pJson, void* pObj) {
   return code;
 }
 
-static const char* jkExchangeLogicPlanSrcGroupId = "SrcGroupId";
+static const char* jkExchangeLogicPlanSrcStartGroupId = "SrcStartGroupId";
+static const char* jkExchangeLogicPlanSrcEndGroupId = "SrcEndGroupId";
 
 static int32_t logicExchangeNodeToJson(const void* pObj, SJson* pJson) {
   const SExchangeLogicNode* pNode = (const SExchangeLogicNode*)pObj;
 
   int32_t code = logicPlanNodeToJson(pObj, pJson);
   if (TSDB_CODE_SUCCESS == code) {
-    code = tjsonAddIntegerToObject(pJson, jkExchangeLogicPlanSrcGroupId, pNode->srcGroupId);
+    code = tjsonAddIntegerToObject(pJson, jkExchangeLogicPlanSrcStartGroupId, pNode->srcStartGroupId);
+  }
+  if (TSDB_CODE_SUCCESS == code) {
+    code = tjsonAddIntegerToObject(pJson, jkExchangeLogicPlanSrcEndGroupId, pNode->srcEndGroupId);
   }
 
   return code;
@@ -744,7 +748,10 @@ static int32_t jsonToLogicExchangeNode(const SJson* pJson, void* pObj) {
 
   int32_t code = jsonToLogicPlanNode(pJson, pObj);
   if (TSDB_CODE_SUCCESS == code) {
-    code = tjsonGetIntValue(pJson, jkExchangeLogicPlanSrcGroupId, &pNode->srcGroupId);
+    code = tjsonGetIntValue(pJson, jkExchangeLogicPlanSrcStartGroupId, &pNode->srcStartGroupId);
+  }
+  if (TSDB_CODE_SUCCESS == code) {
+    code = tjsonGetIntValue(pJson, jkExchangeLogicPlanSrcEndGroupId, &pNode->srcEndGroupId);
   }
 
   return code;
@@ -1837,7 +1844,8 @@ static int32_t jsonToPhysiAggNode(const SJson* pJson, void* pObj) {
   return code;
 }
 
-static const char* jkExchangePhysiPlanSrcGroupId = "SrcGroupId";
+static const char* jkExchangePhysiPlanSrcStartGroupId = "SrcStartGroupId";
+static const char* jkExchangePhysiPlanSrcEndGroupId = "SrcEndGroupId";
 static const char* jkExchangePhysiPlanSrcEndPoints = "SrcEndPoints";
 
 static int32_t physiExchangeNodeToJson(const void* pObj, SJson* pJson) {
@@ -1845,7 +1853,10 @@ static int32_t physiExchangeNodeToJson(const void* pObj, SJson* pJson) {
 
   int32_t code = physicPlanNodeToJson(pObj, pJson);
   if (TSDB_CODE_SUCCESS == code) {
-    code = tjsonAddIntegerToObject(pJson, jkExchangePhysiPlanSrcGroupId, pNode->srcGroupId);
+    code = tjsonAddIntegerToObject(pJson, jkExchangePhysiPlanSrcStartGroupId, pNode->srcStartGroupId);
+  }
+  if (TSDB_CODE_SUCCESS == code) {
+    code = tjsonAddIntegerToObject(pJson, jkExchangePhysiPlanSrcEndGroupId, pNode->srcEndGroupId);
   }
   if (TSDB_CODE_SUCCESS == code) {
     code = nodeListToJson(pJson, jkExchangePhysiPlanSrcEndPoints, pNode->pSrcEndPoints);
@@ -1859,7 +1870,10 @@ static int32_t jsonToPhysiExchangeNode(const SJson* pJson, void* pObj) {
 
   int32_t code = jsonToPhysicPlanNode(pJson, pObj);
   if (TSDB_CODE_SUCCESS == code) {
-    code = tjsonGetIntValue(pJson, jkExchangePhysiPlanSrcGroupId, &pNode->srcGroupId);
+    code = tjsonGetIntValue(pJson, jkExchangePhysiPlanSrcStartGroupId, &pNode->srcStartGroupId);
+  }
+  if (TSDB_CODE_SUCCESS == code) {
+    code = tjsonGetIntValue(pJson, jkExchangePhysiPlanSrcEndGroupId, &pNode->srcEndGroupId);
   }
   if (TSDB_CODE_SUCCESS == code) {
     code = jsonToNodeList(pJson, jkExchangePhysiPlanSrcEndPoints, &pNode->pSrcEndPoints);
diff --git a/source/libs/nodes/src/nodesMsgFuncs.c b/source/libs/nodes/src/nodesMsgFuncs.c
index 2249cfe888946e0ec637c23bf5be34ce57853f61..0c6b11a765ca45311968929f035d21af1742f2f3 100644
--- a/source/libs/nodes/src/nodesMsgFuncs.c
+++ b/source/libs/nodes/src/nodesMsgFuncs.c
@@ -2380,7 +2380,8 @@ static int32_t msgToPhysiAggNode(STlvDecoder* pDecoder, void* pObj) {
 
 enum {
   PHY_EXCHANGE_CODE_BASE_NODE = 1,
-  PHY_EXCHANGE_CODE_SRC_GROUP_ID,
+  PHY_EXCHANGE_CODE_SRC_START_GROUP_ID,
+  PHY_EXCHANGE_CODE_SRC_END_GROUP_ID,
   PHY_EXCHANGE_CODE_SINGLE_CHANNEL,
   PHY_EXCHANGE_CODE_SRC_ENDPOINTS
 };
@@ -2390,7 +2391,10 @@ static int32_t physiExchangeNodeToMsg(const void* pObj, STlvEncoder* pEncoder) {
 
   int32_t code = tlvEncodeObj(pEncoder, PHY_EXCHANGE_CODE_BASE_NODE, physiNodeToMsg, &pNode->node);
   if (TSDB_CODE_SUCCESS == code) {
-    code = tlvEncodeI32(pEncoder, PHY_EXCHANGE_CODE_SRC_GROUP_ID, pNode->srcGroupId);
+    code = tlvEncodeI32(pEncoder, PHY_EXCHANGE_CODE_SRC_START_GROUP_ID, pNode->srcStartGroupId);
+  }
+  if (TSDB_CODE_SUCCESS == code) {
+    code = tlvEncodeI32(pEncoder, PHY_EXCHANGE_CODE_SRC_END_GROUP_ID, pNode->srcEndGroupId);
   }
   if (TSDB_CODE_SUCCESS == code) {
     code = tlvEncodeBool(pEncoder, PHY_EXCHANGE_CODE_SINGLE_CHANNEL, pNode->singleChannel);
@@ -2412,8 +2416,11 @@ static int32_t msgToPhysiExchangeNode(STlvDecoder* pDecoder, void* pObj) {
       case PHY_EXCHANGE_CODE_BASE_NODE:
         code = tlvDecodeObjFromTlv(pTlv, msgToPhysiNode, &pNode->node);
         break;
-      case PHY_EXCHANGE_CODE_SRC_GROUP_ID:
-        code = tlvDecodeI32(pTlv, &pNode->srcGroupId);
+      case PHY_EXCHANGE_CODE_SRC_START_GROUP_ID:
+        code = tlvDecodeI32(pTlv, &pNode->srcStartGroupId);
+        break;
+      case PHY_EXCHANGE_CODE_SRC_END_GROUP_ID:
+        code = tlvDecodeI32(pTlv, &pNode->srcEndGroupId);
         break;
       case PHY_EXCHANGE_CODE_SINGLE_CHANNEL:
         code = tlvDecodeBool(pTlv, &pNode->singleChannel);
diff --git a/source/libs/planner/src/planPhysiCreater.c b/source/libs/planner/src/planPhysiCreater.c
index b0177e61ed290e8ef687e5de8c54c824545d8103..ec7050fdbc3dc1b9b13762182232322934082840 100644
--- a/source/libs/planner/src/planPhysiCreater.c
+++ b/source/libs/planner/src/planPhysiCreater.c
@@ -1046,7 +1046,8 @@ static int32_t doCreateExchangePhysiNode(SPhysiPlanContext* pCxt, SExchangeLogic
     return TSDB_CODE_OUT_OF_MEMORY;
   }
 
-  pExchange->srcGroupId = pExchangeLogicNode->srcGroupId;
+  pExchange->srcStartGroupId = pExchangeLogicNode->srcStartGroupId;
+  pExchange->srcEndGroupId = pExchangeLogicNode->srcEndGroupId;
   *pPhyNode = (SPhysiNode*)pExchange;
 
   return TSDB_CODE_SUCCESS;
@@ -1425,7 +1426,8 @@ static int32_t createExchangePhysiNodeByMerge(SMergePhysiNode* pMerge) {
   if (NULL == pExchange) {
     return TSDB_CODE_OUT_OF_MEMORY;
   }
-  pExchange->srcGroupId = pMerge->srcGroupId;
+  pExchange->srcStartGroupId = pMerge->srcGroupId;
+  pExchange->srcEndGroupId = pMerge->srcGroupId;
   pExchange->singleChannel = true;
   pExchange->node.pParent = (SPhysiNode*)pMerge;
   pExchange->node.pOutputDataBlockDesc = (SDataBlockDescNode*)nodesCloneNode((SNode*)pMerge->node.pOutputDataBlockDesc);
diff --git a/source/libs/planner/src/planSpliter.c b/source/libs/planner/src/planSpliter.c
index 106e6741522bba0a91f0a7763f313f7211c24f46..74ed3b57a4417aa43662bb722d3b78f3b13ee002 100644
--- a/source/libs/planner/src/planSpliter.c
+++ b/source/libs/planner/src/planSpliter.c
@@ -84,7 +84,8 @@ static int32_t splCreateExchangeNode(SSplitContext* pCxt, SLogicNode* pChild, SE
   if (NULL == pExchange) {
     return TSDB_CODE_OUT_OF_MEMORY;
   }
-  pExchange->srcGroupId = pCxt->groupId;
+  pExchange->srcStartGroupId = pCxt->groupId;
+  pExchange->srcEndGroupId = pCxt->groupId;
   pExchange->node.precision = pChild->precision;
   pExchange->node.pTargets = nodesCloneList(pChild->pTargets);
   if (NULL == pExchange->node.pTargets) {
@@ -112,7 +113,8 @@ static int32_t splCreateExchangeNodeForSubplan(SSplitContext* pCxt, SLogicSubpla
 
 static bool splIsChildSubplan(SLogicNode* pLogicNode, int32_t groupId) {
   if (QUERY_NODE_LOGIC_PLAN_EXCHANGE == nodeType(pLogicNode)) {
-    return ((SExchangeLogicNode*)pLogicNode)->srcGroupId == groupId;
+    return groupId >= ((SExchangeLogicNode*)pLogicNode)->srcStartGroupId &&
+           groupId <= ((SExchangeLogicNode*)pLogicNode)->srcEndGroupId;
   }
 
   if (QUERY_NODE_LOGIC_PLAN_MERGE == nodeType(pLogicNode)) {
@@ -1184,6 +1186,7 @@ static int32_t unionSplitSubplan(SSplitContext* pCxt, SLogicSubplan* pUnionSubpl
     if (TSDB_CODE_SUCCESS != code) {
       break;
     }
+    ++(pCxt->groupId);
   }
   if (TSDB_CODE_SUCCESS == code) {
     nodesDestroyList(pSubplanChildren);
@@ -1207,12 +1210,14 @@ static bool unAllSplFindSplitNode(SSplitContext* pCxt, SLogicSubplan* pSubplan,
   return false;
 }
 
-static int32_t unAllSplCreateExchangeNode(SSplitContext* pCxt, SLogicSubplan* pSubplan, SProjectLogicNode* pProject) {
+static int32_t unAllSplCreateExchangeNode(SSplitContext* pCxt, int32_t startGroupId, SLogicSubplan* pSubplan,
+                                          SProjectLogicNode* pProject) {
   SExchangeLogicNode* pExchange = (SExchangeLogicNode*)nodesMakeNode(QUERY_NODE_LOGIC_PLAN_EXCHANGE);
   if (NULL == pExchange) {
     return TSDB_CODE_OUT_OF_MEMORY;
   }
-  pExchange->srcGroupId = pCxt->groupId;
+  pExchange->srcStartGroupId = startGroupId;
+  pExchange->srcEndGroupId = pCxt->groupId - 1;
   pExchange->node.precision = pProject->node.precision;
   pExchange->node.pTargets = nodesCloneList(pProject->node.pTargets);
   if (NULL == pExchange->node.pTargets) {
@@ -1246,11 +1251,11 @@ static int32_t unionAllSplit(SSplitContext* pCxt, SLogicSubplan* pSubplan) {
     return TSDB_CODE_SUCCESS;
   }
 
+  int32_t startGroupId = pCxt->groupId;
   int32_t code = unionSplitSubplan(pCxt, info.pSubplan, (SLogicNode*)info.pProject);
   if (TSDB_CODE_SUCCESS == code) {
-    code = unAllSplCreateExchangeNode(pCxt, info.pSubplan, info.pProject);
+    code = unAllSplCreateExchangeNode(pCxt, startGroupId, info.pSubplan, info.pProject);
   }
-  ++(pCxt->groupId);
   pCxt->split = true;
   return code;
 }
@@ -1260,12 +1265,14 @@ typedef struct SUnionDistinctSplitInfo {
   SLogicSubplan* pSubplan;
 } SUnionDistinctSplitInfo;
 
-static int32_t unDistSplCreateExchangeNode(SSplitContext* pCxt, SLogicSubplan* pSubplan, SAggLogicNode* pAgg) {
+static int32_t unDistSplCreateExchangeNode(SSplitContext* pCxt, int32_t startGroupId, SLogicSubplan* pSubplan,
+                                           SAggLogicNode* pAgg) {
   SExchangeLogicNode* pExchange = (SExchangeLogicNode*)nodesMakeNode(QUERY_NODE_LOGIC_PLAN_EXCHANGE);
   if (NULL == pExchange) {
     return TSDB_CODE_OUT_OF_MEMORY;
   }
-  pExchange->srcGroupId = pCxt->groupId;
+  pExchange->srcStartGroupId = startGroupId;
+  pExchange->srcEndGroupId = pCxt->groupId - 1;
   pExchange->node.precision = pAgg->node.precision;
   pExchange->node.pTargets = nodesCloneList(pAgg->pGroupKeys);
   if (NULL == pExchange->node.pTargets) {
@@ -1293,11 +1300,11 @@ static int32_t unionDistinctSplit(SSplitContext* pCxt, SLogicSubplan* pSubplan)
     return TSDB_CODE_SUCCESS;
   }
 
+  int32_t startGroupId = pCxt->groupId;
   int32_t code = unionSplitSubplan(pCxt, info.pSubplan, (SLogicNode*)info.pAgg);
   if (TSDB_CODE_SUCCESS == code) {
-    code = unDistSplCreateExchangeNode(pCxt, info.pSubplan, info.pAgg);
+    code = unDistSplCreateExchangeNode(pCxt, startGroupId, info.pSubplan, info.pAgg);
   }
-  ++(pCxt->groupId);
   pCxt->split = true;
   return code;
 }
@@ -1430,7 +1437,7 @@ static const SSplitRule splitRuleSet[] = {
   {.pName = "SingleTableJoinSplit", .splitFunc = singleTableJoinSplit},
   {.pName = "UnionAllSplit",        .splitFunc = unionAllSplit},
   {.pName = "UnionDistinctSplit",   .splitFunc = unionDistinctSplit},
-  {.pName = "SmaIndexSplit",        .splitFunc = smaIndexSplit},
+  {.pName = "SmaIndexSplit",        .splitFunc = smaIndexSplit}, // not used yet
   {.pName = "InsertSelectSplit",    .splitFunc = insertSelectSplit}
 };
 // clang-format on
diff --git a/source/libs/planner/src/planner.c b/source/libs/planner/src/planner.c
index e4f02f12e698768f559bad30ef2a951022bb998e..53549c122d958bbb043f2e9c885d91ea2b742ad1 100644
--- a/source/libs/planner/src/planner.c
+++ b/source/libs/planner/src/planner.c
@@ -63,7 +63,7 @@ int32_t qCreateQueryPlan(SPlanContext* pCxt, SQueryPlan** pPlan, SArray* pExecNo
 static int32_t setSubplanExecutionNode(SPhysiNode* pNode, int32_t groupId, SDownstreamSourceNode* pSource) {
   if (QUERY_NODE_PHYSICAL_PLAN_EXCHANGE == nodeType(pNode)) {
     SExchangePhysiNode* pExchange = (SExchangePhysiNode*)pNode;
-    if (pExchange->srcGroupId == groupId) {
+    if (groupId >= pExchange->srcStartGroupId && groupId <= pExchange->srcEndGroupId) {
       return nodesListMakeStrictAppend(&pExchange->pSrcEndPoints, nodesCloneNode((SNode*)pSource));
     }
   } else if (QUERY_NODE_PHYSICAL_PLAN_MERGE == nodeType(pNode)) {
diff --git a/source/libs/qworker/inc/qwInt.h b/source/libs/qworker/inc/qwInt.h
index 150dde91e0b048af0ba440e90cdf4ce42d7b93f2..3a3226359998d23da690aa361c5dffd1ce7d12fc 100644
--- a/source/libs/qworker/inc/qwInt.h
+++ b/source/libs/qworker/inc/qwInt.h
@@ -191,6 +191,7 @@ typedef struct SQWorker {
   SHashObj   *ctxHash;  // key: queryId+taskId, value: SQWTaskCtx
   SMsgCb      msgCb;
   SQWStat     stat;
+  int32_t    *destroyed;
 } SQWorker;
 
 typedef struct SQWorkerMgmt {
diff --git a/source/libs/qworker/src/qwUtil.c b/source/libs/qworker/src/qwUtil.c
index 581eea4a81f90c01333233253d99d8c21f8e1a64..9f1a9a3146b0aeba875d051d731f750779b94e42 100644
--- a/source/libs/qworker/src/qwUtil.c
+++ b/source/libs/qworker/src/qwUtil.c
@@ -485,6 +485,8 @@ void qwDestroyImpl(void *pMgmt) {
   }
   taosHashCleanup(mgmt->schHash);
 
+  *mgmt->destroyed = 1;
+  
   taosMemoryFree(mgmt);
 
   atomic_sub_fetch_32(&gQwMgmt.qwNum, 1);
diff --git a/source/libs/qworker/src/qworker.c b/source/libs/qworker/src/qworker.c
index 293f6e07b03600c2b082d26148c6a0c0e24a8662..3c102938d02a74d7beda2e95e21b34b4f844fae5 100644
--- a/source/libs/qworker/src/qworker.c
+++ b/source/libs/qworker/src/qworker.c
@@ -1105,10 +1105,17 @@ void qWorkerDestroy(void **qWorkerMgmt) {
     return;
   }
 
+  int32_t destroyed = 0;
   SQWorker *mgmt = *qWorkerMgmt;
-
+  mgmt->destroyed = &destroyed;
+  
   if (taosRemoveRef(gQwMgmt.qwRef, mgmt->refId)) {
     qError("remove qw from ref list failed, refId:%" PRIx64, mgmt->refId);
+    return;
+  }
+
+  while (0 == destroyed) {
+    taosMsleep(2);
   }
 }
 
diff --git a/source/libs/scalar/inc/filterInt.h b/source/libs/scalar/inc/filterInt.h
index 5d243d86e872be722eeaf885ec5a0ff9d3f6108e..ef3d3f79f959805681d0bc0e2e0b101cd8518388 100644
--- a/source/libs/scalar/inc/filterInt.h
+++ b/source/libs/scalar/inc/filterInt.h
@@ -99,7 +99,7 @@ typedef struct SFilterRange {
 
 typedef bool (*rangeCompFunc) (const void *, const void *, const void *, const void *, __compar_fn_t);
 typedef int32_t(*filter_desc_compare_func)(const void *, const void *);
-typedef bool(*filter_exec_func)(void *info, int32_t numOfRows, SColumnInfoData* p, SColumnDataAgg *statis, int16_t numOfCols);
+typedef bool(*filter_exec_func)(void*, int32_t, SColumnInfoData*, SColumnDataAgg*, int16_t, int32_t*);
 typedef int32_t (*filer_get_col_from_name)(void *, int32_t, char*, void **);
 
 typedef struct SFilterRangeCompare {
diff --git a/source/libs/scalar/src/filter.c b/source/libs/scalar/src/filter.c
index dc6b505bb957f09de765181d6da8e6b71211eb56..2ad06249ca930c5efdb7ac4e2406e3b7dae13dd4 100644
--- a/source/libs/scalar/src/filter.c
+++ b/source/libs/scalar/src/filter.c
@@ -3067,15 +3067,16 @@ _return:
   return TSDB_CODE_SUCCESS;
 }
 
-static FORCE_INLINE bool filterExecuteImplAll(void *info, int32_t numOfRows, SColumnInfoData* p, SColumnDataAgg *statis, int16_t numOfCols) {
+static FORCE_INLINE bool filterExecuteImplAll(void *info, int32_t numOfRows, SColumnInfoData* p, SColumnDataAgg *statis, int16_t numOfCols, int32_t* numOfQualified) {
   return true;
 }
 
-static FORCE_INLINE bool filterExecuteImplEmpty(void *info, int32_t numOfRows, SColumnInfoData* p, SColumnDataAgg *statis, int16_t numOfCols) {
+static FORCE_INLINE bool filterExecuteImplEmpty(void *info, int32_t numOfRows, SColumnInfoData* p, SColumnDataAgg *statis, int16_t numOfCols, int32_t* numOfQualified) {
   return false;
 }
 
-static FORCE_INLINE bool filterExecuteImplIsNull(void *pinfo, int32_t numOfRows, SColumnInfoData* pRes, SColumnDataAgg *statis, int16_t numOfCols) {
+static FORCE_INLINE bool filterExecuteImplIsNull(void *pinfo, int32_t numOfRows, SColumnInfoData *pRes,
+                                                 SColumnDataAgg *statis, int16_t numOfCols, int32_t *numOfQualified) {
   SFilterInfo *info = (SFilterInfo *)pinfo;
   bool all = true;
 
@@ -3097,7 +3098,9 @@ static FORCE_INLINE bool filterExecuteImplIsNull(void *pinfo, int32_t numOfRows,
 
   return all;
 }
-static FORCE_INLINE bool filterExecuteImplNotNull(void *pinfo, int32_t numOfRows, SColumnInfoData* pRes, SColumnDataAgg *statis, int16_t numOfCols) {
+
+static FORCE_INLINE bool filterExecuteImplNotNull(void *pinfo, int32_t numOfRows, SColumnInfoData *pRes,
+                                                  SColumnDataAgg *statis, int16_t numOfCols, int32_t *numOfQualified) {
   SFilterInfo *info = (SFilterInfo *)pinfo;
   bool all = true;
 
@@ -3120,7 +3123,7 @@ static FORCE_INLINE bool filterExecuteImplNotNull(void *pinfo, int32_t numOfRows
   return all;
 }
 
-bool filterExecuteImplRange(void *pinfo, int32_t numOfRows, SColumnInfoData* pRes, SColumnDataAgg *statis, int16_t numOfCols) {
+bool filterExecuteImplRange(void *pinfo, int32_t numOfRows, SColumnInfoData* pRes, SColumnDataAgg *statis, int16_t numOfCols, int32_t* numOfQualified) {
   SFilterInfo *info = (SFilterInfo *)pinfo;
   bool all = true;
   uint16_t dataSize = info->cunits[0].dataSize;
@@ -3136,8 +3139,9 @@ bool filterExecuteImplRange(void *pinfo, int32_t numOfRows, SColumnInfoData* pRe
   int8_t* p = (int8_t*) pRes->pData;
 
   for (int32_t i = 0; i < numOfRows; ++i) {
-    void *colData = colDataGetData((SColumnInfoData *)info->cunits[0].colData, i);
     SColumnInfoData* pData = info->cunits[0].colData;
+
+    void *colData = colDataGetData(pData, i);
     if (colData == NULL || colDataIsNull_s(pData, i)) {
       all = false;
       continue;
@@ -3147,13 +3151,16 @@ bool filterExecuteImplRange(void *pinfo, int32_t numOfRows, SColumnInfoData* pRe
 
     if (p[i] == 0) {
       all = false;
+    } else {
+      (*numOfQualified)++;
     }
   }
 
   return all;
 }
 
-bool filterExecuteImplMisc(void *pinfo, int32_t numOfRows, SColumnInfoData* pRes, SColumnDataAgg *statis, int16_t numOfCols) {
+bool filterExecuteImplMisc(void *pinfo, int32_t numOfRows, SColumnInfoData *pRes, SColumnDataAgg *statis,
+                           int16_t numOfCols, int32_t *numOfQualified) {
   SFilterInfo *info = (SFilterInfo *)pinfo;
   bool all = true;
 
@@ -3195,8 +3202,8 @@ bool filterExecuteImplMisc(void *pinfo, int32_t numOfRows, SColumnInfoData* pRes
   return all;
 }
 
-
-bool filterExecuteImpl(void *pinfo, int32_t numOfRows, SColumnInfoData* pRes, SColumnDataAgg *statis, int16_t numOfCols) {
+bool filterExecuteImpl(void *pinfo, int32_t numOfRows, SColumnInfoData *pRes, SColumnDataAgg *statis, int16_t numOfCols,
+                       int32_t *numOfQualified) {
   SFilterInfo *info = (SFilterInfo *)pinfo;
   bool all = true;
 
@@ -4048,7 +4055,7 @@ bool filterExecute(SFilterInfo *info, SSDataBlock *pSrc, SColumnInfoData** p, SC
     *p = output.columnData;
     output.numOfRows = pSrc->info.rows;
 
-    bool keep = (*info->func)(info, pSrc->info.rows, *p, statis, numOfCols);
+    bool keep = (*info->func)(info, pSrc->info.rows, *p, statis, numOfCols, &output.numOfQualified);
 
     // todo this should be return during filter procedure
     int32_t num = 0;
diff --git a/tests/script/tsim/tmq/topic.sim b/tests/script/tsim/tmq/topic.sim
index 602b1064720636b504a3baa302cdd418c3cabe89..cb1e74798ea072a03d2ea2570a5a245222b5c8c5 100644
--- a/tests/script/tsim/tmq/topic.sim
+++ b/tests/script/tsim/tmq/topic.sim
@@ -72,15 +72,31 @@ sql create topic topic_ntb_column as select ts, c3 from ntb0
 sql create topic topic_ntb_all as select * from ntb0
 sql create topic topic_ntb_function as select ts, abs(c1), sin(c2) from ntb0
 
+system sh/exec.sh -n dnode1 -s stop -x SIGINT
+system sh/exec.sh -n dnode1 -s start
 
-print == show topics 
 sql show topics
 if $rows != 9 then 
   return -1
 endi
 
-print == drop topic
 sql drop topic topic_stb_column
+
+sql show topics
+if $rows != 8 then 
+  return -1
+endi
+
+system sh/exec.sh -n dnode1 -s stop -x SIGINT
+system sh/exec.sh -n dnode1 -s start
+
+print == show topics 
+sql show topics
+if $rows != 8 then 
+  return -1
+endi
+
+print == drop topic
 sql drop topic topic_ctb_column
 sql drop topic topic_ntb_column
 
@@ -90,4 +106,4 @@ if $rows != 6 then
   return -1
 endi
 
-
+system sh/exec.sh -n dnode1 -s stop -x SIGINT