diff --git a/include/libs/executor/executor.h b/include/libs/executor/executor.h
index 9cafb4ee04..5379a8f712 100644
--- a/include/libs/executor/executor.h
+++ b/include/libs/executor/executor.h
@@ -61,7 +61,7 @@ qTaskInfo_t qCreateStreamExecTaskInfo(void* msg, void* streamReadHandle);
  * @param type
  * @return
  */
-int32_t qSetStreamInput(qTaskInfo_t tinfo, const void* input, int32_t type);
+int32_t qSetStreamInput(qTaskInfo_t tinfo, const void* input, int32_t type, bool assignUid);
 
 /**
  * Set multiple input data blocks for the stream scan.
@@ -71,7 +71,7 @@ int32_t qSetStreamInput(qTaskInfo_t tinfo, const void* input, int32_t type);
  * @param type
  * @return
  */
-int32_t qSetMultiStreamInput(qTaskInfo_t tinfo, const void* pBlocks, size_t numOfBlocks, int32_t type);
+int32_t qSetMultiStreamInput(qTaskInfo_t tinfo, const void* pBlocks, size_t numOfBlocks, int32_t type, bool assignUid);
 
 /**
  * Update the table id list, add or remove.
diff --git a/source/dnode/vnode/src/sma/smaRollup.c b/source/dnode/vnode/src/sma/smaRollup.c
index 88af049d0b..df10d9d533 100644
--- a/source/dnode/vnode/src/sma/smaRollup.c
+++ b/source/dnode/vnode/src/sma/smaRollup.c
@@ -374,7 +374,7 @@ static FORCE_INLINE int32_t tdExecuteRSmaImpl(SSma *pSma, const void *pMsg, int3
 
   smaDebug("vgId:%d execute rsma %" PRIi8 " task for qTaskInfo:%p suid:%" PRIu64, SMA_VID(pSma), level, taskInfo, suid);
 
-  qSetStreamInput(taskInfo, pMsg, inputType);
+  qSetStreamInput(taskInfo, pMsg, inputType, true);
   while (1) {
     SSDataBlock *output = NULL;
     uint64_t     ts;
diff --git a/source/dnode/vnode/src/tq/tq.c b/source/dnode/vnode/src/tq/tq.c
index 9941b00ff7..192016166a 100644
--- a/source/dnode/vnode/src/tq/tq.c
+++ b/source/dnode/vnode/src/tq/tq.c
@@ -264,7 +264,7 @@ int32_t tqPushMsgNew(STQ* pTq, void* msg, int32_t msgLen, tmsg_t msgType, int64_
     if (pExec->subType == TOPIC_SUB_TYPE__TABLE) {
       qTaskInfo_t task = pExec->task[workerId];
       ASSERT(task);
-      qSetStreamInput(task, pReq, STREAM_DATA_TYPE_SUBMIT_BLOCK);
+      qSetStreamInput(task, pReq, STREAM_DATA_TYPE_SUBMIT_BLOCK, false);
       while (1) {
         SSDataBlock* pDataBlock = NULL;
         uint64_t     ts = 0;
@@ -510,7 +510,7 @@ int32_t tqProcessPollReq(STQ* pTq, SRpcMsg* pMsg, int32_t workerId) {
       if (pExec->subType == TOPIC_SUB_TYPE__TABLE) {
         qTaskInfo_t task = pExec->task[workerId];
         ASSERT(task);
-        qSetStreamInput(task, pCont, STREAM_DATA_TYPE_SUBMIT_BLOCK);
+        qSetStreamInput(task, pCont, STREAM_DATA_TYPE_SUBMIT_BLOCK, false);
         while (1) {
           SSDataBlock* pDataBlock = NULL;
           uint64_t     ts = 0;
diff --git a/source/dnode/vnode/src/tsdb/tsdbSma.c b/source/dnode/vnode/src/tsdb/tsdbSma.c
index 18cf18dbad..2819ad3249 100644
--- a/source/dnode/vnode/src/tsdb/tsdbSma.c
+++ b/source/dnode/vnode/src/tsdb/tsdbSma.c
@@ -2015,7 +2015,7 @@ static FORCE_INLINE int32_t tsdbExecuteRSmaImpl(STsdb *pTsdb, const void *pMsg,
   tsdbDebug("vgId:%d execute rsma %" PRIi8 " task for qTaskInfo:%p suid:%" PRIu64, REPO_ID(pTsdb), level, taskInfo,
             suid);
 
-  qSetStreamInput(taskInfo, pMsg, inputType);
+  qSetStreamInput(taskInfo, pMsg, inputType, true);
   while (1) {
     SSDataBlock *output = NULL;
     uint64_t     ts;
diff --git a/source/libs/executor/inc/executorimpl.h b/source/libs/executor/inc/executorimpl.h
index dc12f47c65..c96eb57fa8 100644
--- a/source/libs/executor/inc/executorimpl.h
+++ b/source/libs/executor/inc/executorimpl.h
@@ -371,6 +371,7 @@ typedef struct SessionWindowSupporter {
   SStreamAggSupporter* pStreamAggSup;
   int64_t gap;
 } SessionWindowSupporter;
+
 typedef struct SStreamBlockScanInfo {
   SArray*      pBlockLists;      // multiple SSDatablock.
   SSDataBlock* pRes;             // result SSDataBlock
@@ -379,7 +380,6 @@ typedef struct SStreamBlockScanInfo {
   int32_t      blockType;        // current block type
   int32_t      validBlockIndex;  // Is current data has returned?
   SColumnInfo* pCols;            // the output column info
-  uint64_t     numOfRows;        // total scanned rows
   uint64_t     numOfExec;        // execution times
   void*        streamBlockReader;// stream block reader handle
   SArray*      pColMatchInfo;    //
@@ -394,8 +394,9 @@ typedef struct SStreamBlockScanInfo {
   SOperatorInfo* pOperatorDumy;
   SInterval      interval;     // if the upstream is an interval operator, the interval info is also kept here.
   SCatchSupporter childAggSup;
-  SArray* childIds;
+  SArray*      childIds;
   SessionWindowSupporter sessionSup;
+  bool         assignBlockUid; // assign block uid to groupId, temporarily used for generating rollup SMA.
 } SStreamBlockScanInfo;
 
 typedef struct SSysTableScanInfo {
diff --git a/source/libs/executor/src/executor.c b/source/libs/executor/src/executor.c
index 2811c8dce8..fd62849e56 100644
--- a/source/libs/executor/src/executor.c
+++ b/source/libs/executor/src/executor.c
@@ -19,7 +19,7 @@
 #include "tdatablock.h"
 #include "vnode.h"
 
-static int32_t doSetStreamBlock(SOperatorInfo* pOperator, void* input, size_t numOfBlocks, int32_t type, char* id) {
+static int32_t doSetStreamBlock(SOperatorInfo* pOperator, void* input, size_t numOfBlocks, int32_t type, bool assignUid, char* id) {
   ASSERT(pOperator != NULL);
   if (pOperator->operatorType != QUERY_NODE_PHYSICAL_PLAN_STREAM_SCAN) {
     if (pOperator->numOfDownstream == 0) {
@@ -32,11 +32,12 @@ static int32_t doSetStreamBlock(SOperatorInfo* pOperator, void* input, size_t nu
       return TSDB_CODE_QRY_APP_ERROR;
     }
     pOperator->status = OP_NOT_OPENED;
-    return doSetStreamBlock(pOperator->pDownstream[0], input, numOfBlocks, type, id);
+    return doSetStreamBlock(pOperator->pDownstream[0], input, numOfBlocks, type, assignUid, id);
   } else {
     pOperator->status = OP_NOT_OPENED;
 
     SStreamBlockScanInfo* pInfo = pOperator->info;
+    pInfo->assignBlockUid = assignUid;
 
     // the block type can not be changed in the streamscan operators
     if (pInfo->blockType == 0) {
@@ -67,11 +68,11 @@ static int32_t doSetStreamBlock(SOperatorInfo* pOperator, void* input, size_t nu
   }
 }
 
-int32_t qSetStreamInput(qTaskInfo_t tinfo, const void* input, int32_t type) {
-  return qSetMultiStreamInput(tinfo, input, 1, type);
+int32_t qSetStreamInput(qTaskInfo_t tinfo, const void* input, int32_t type, bool assignUid) {
+  return qSetMultiStreamInput(tinfo, input, 1, type, assignUid);
 }
 
-int32_t qSetMultiStreamInput(qTaskInfo_t tinfo, const void* pBlocks, size_t numOfBlocks, int32_t type) {
+int32_t qSetMultiStreamInput(qTaskInfo_t tinfo, const void* pBlocks, size_t numOfBlocks, int32_t type, bool assignUid) {
   if (tinfo == NULL) {
     return TSDB_CODE_QRY_APP_ERROR;
   }
@@ -82,7 +83,7 @@ int32_t qSetMultiStreamInput(qTaskInfo_t tinfo, const void* pBlocks, size_t numO
 
   SExecTaskInfo* pTaskInfo = (SExecTaskInfo*)tinfo;
 
-  int32_t code = doSetStreamBlock(pTaskInfo->pRoot, (void**)pBlocks, numOfBlocks, type, GET_TASKID(pTaskInfo));
+  int32_t code = doSetStreamBlock(pTaskInfo->pRoot, (void**)pBlocks, numOfBlocks, type, assignUid, GET_TASKID(pTaskInfo));
   if (code != TSDB_CODE_SUCCESS) {
     qError("%s failed to set the stream block data", GET_TASKID(pTaskInfo));
   } else {
diff --git a/source/libs/executor/src/scanoperator.c b/source/libs/executor/src/scanoperator.c
index ceece4f9b5..63c6f46083 100644
--- a/source/libs/executor/src/scanoperator.c
+++ b/source/libs/executor/src/scanoperator.c
@@ -878,6 +878,12 @@ static SSDataBlock* doStreamBlockScan(SOperatorInfo* pOperator) {
       pInfo->pRes->info.uid = uid;
       pInfo->pRes->info.type = STREAM_NORMAL;
 
+      // for generating rollup SMA result, each time is an independent time serie.
+      // TODO temporarily used, when the statement of "partition by tbname" is ready, remove this
+      if (pInfo->assignBlockUid) {
+        pInfo->pRes->info.groupId = uid;
+      }
+
       int32_t numOfCols = pInfo->pRes->info.numOfCols;
       for (int32_t i = 0; i < numOfCols; ++i) {
         SColMatchInfo* pColMatchInfo = taosArrayGet(pInfo->pColMatchInfo, i);
@@ -918,7 +924,7 @@ static SSDataBlock* doStreamBlockScan(SOperatorInfo* pOperator) {
 
     // record the scan action.
     pInfo->numOfExec++;
-    pInfo->numOfRows += pBlockInfo->rows;
+    pOperator->resultInfo.totalRows += pBlockInfo->rows;
 
     if (rows == 0) {
       pOperator->status = OP_EXEC_DONE;
diff --git a/source/libs/stream/src/tstream.c b/source/libs/stream/src/tstream.c
index dc0fbf2bbe..7e4f83a693 100644
--- a/source/libs/stream/src/tstream.c
+++ b/source/libs/stream/src/tstream.c
@@ -141,13 +141,13 @@ static int32_t streamTaskExecImpl(SStreamTask* pTask, void* data, SArray* pRes)
     SStreamDataSubmit* pSubmit = (SStreamDataSubmit*)data;
     ASSERT(pSubmit->type == STREAM_INPUT__DATA_SUBMIT);
 
-    qSetStreamInput(exec, pSubmit->data, STREAM_DATA_TYPE_SUBMIT_BLOCK);
+    qSetStreamInput(exec, pSubmit->data, STREAM_DATA_TYPE_SUBMIT_BLOCK, false);
   } else if (pTask->inputType == STREAM_INPUT__DATA_BLOCK) {
     SStreamDataBlock* pBlock = (SStreamDataBlock*)data;
     ASSERT(pBlock->type == STREAM_INPUT__DATA_BLOCK);
 
     SArray* blocks = pBlock->blocks;
-    qSetMultiStreamInput(exec, blocks->pData, blocks->size, STREAM_DATA_TYPE_SSDATA_BLOCK);
+    qSetMultiStreamInput(exec, blocks->pData, blocks->size, STREAM_DATA_TYPE_SSDATA_BLOCK, false);
   }
 
   // exec