diff --git a/include/libs/executor/executor.h b/include/libs/executor/executor.h
index 3bef15f3a7c49b7a89112344b67182b3da9f3696..f90c38f341edccf801d7f7d470228c524a8f794d 100644
--- a/include/libs/executor/executor.h
+++ b/include/libs/executor/executor.h
@@ -221,13 +221,9 @@ int32_t qStreamSourceScanParamForHistoryScanStep2(qTaskInfo_t tinfo, SVersionRan
 int32_t qStreamRecoverFinish(qTaskInfo_t tinfo);
 int32_t qRestoreStreamOperatorOption(qTaskInfo_t tinfo);
 bool    qStreamRecoverScanFinished(qTaskInfo_t tinfo);
-bool    qStreamRecoverScanStep1Finished(qTaskInfo_t tinfo);
-bool    qStreamRecoverScanStep2Finished(qTaskInfo_t tinfo);
-int32_t qStreamRecoverSetAllStepFinished(qTaskInfo_t tinfo);
+int32_t qStreamInfoResetTimewindowFilter(qTaskInfo_t tinfo);
 void    resetTaskInfo(qTaskInfo_t tinfo);
 
-void qResetStreamInfoTimeWindow(qTaskInfo_t tinfo);
-
 int32_t qStreamOperatorReleaseState(qTaskInfo_t tInfo);
 int32_t qStreamOperatorReloadState(qTaskInfo_t tInfo);
 
diff --git a/include/libs/stream/tstream.h b/include/libs/stream/tstream.h
index 066f83fbcbb96b1df73d50982c0ba2702bc2b296..9d3a42f50278a3d3339c6adf88a72ed977fd79c2 100644
--- a/include/libs/stream/tstream.h
+++ b/include/libs/stream/tstream.h
@@ -607,8 +607,6 @@ int32_t streamTaskScanHistoryDataComplete(SStreamTask* pTask);
 int32_t streamStartRecoverTask(SStreamTask* pTask, int8_t igUntreated);
 bool    streamHistoryTaskSetVerRangeStep2(SStreamTask* pTask, int64_t latestVer);
 
-bool    streamTaskRecoverScanStep1Finished(SStreamTask* pTask);
-bool    streamTaskRecoverScanStep2Finished(SStreamTask* pTask);
 int32_t streamTaskRecoverSetAllStepFinished(SStreamTask* pTask);
 
 // common
diff --git a/source/dnode/vnode/src/tq/tq.c b/source/dnode/vnode/src/tq/tq.c
index db9ef7805faebe17394857de9b83d0e9cc4f22da..bd4a35d39ca7c7aa730681121855998cda241500 100644
--- a/source/dnode/vnode/src/tq/tq.c
+++ b/source/dnode/vnode/src/tq/tq.c
@@ -1296,7 +1296,7 @@ int32_t tqProcessTaskScanHistory(STQ* pTq, SRpcMsg* pMsg) {
           "s-task:%s scan-history in stream time window completed, no related fill-history task, reset the time "
           "window:%" PRId64 " - %" PRId64,
           id, pWindow->skey, pWindow->ekey);
-      qResetStreamInfoTimeWindow(pTask->exec.pExecutor);
+      qStreamInfoResetTimewindowFilter(pTask->exec.pExecutor);
     } else {
       // when related fill-history task exists, update the fill-history time window only when the
       // state transfer is completed.
diff --git a/source/libs/executor/inc/querytask.h b/source/libs/executor/inc/querytask.h
index cdf37bcc6b5a9cd2a06f0398cd17675e2ce62531..7241b015a09321db59af5f212efae85af56959ca 100644
--- a/source/libs/executor/inc/querytask.h
+++ b/source/libs/executor/inc/querytask.h
@@ -62,8 +62,8 @@ typedef struct {
   SSchemaWrapper*      schema;
   char                 tbName[TSDB_TABLE_NAME_LEN];  // this is the current scan table: todo refactor
   int8_t               recoverStep;
-  bool                 recoverStep1Finished;
-  bool                 recoverStep2Finished;
+//  bool                 recoverStep1Finished;
+//  bool                 recoverStep2Finished;
   int8_t               recoverScanFinished;
   SQueryTableDataCond  tableCond;
   SVersionRange        fillHistoryVer;
diff --git a/source/libs/executor/src/executor.c b/source/libs/executor/src/executor.c
index 5a99c1ea9a2fd0f7634daba482cd52d3811a4a11..e4ddf9ca6c65e629031f69e505456d0f88c1de47 100644
--- a/source/libs/executor/src/executor.c
+++ b/source/libs/executor/src/executor.c
@@ -116,17 +116,6 @@ void resetTaskInfo(qTaskInfo_t tinfo) {
   clearStreamBlock(pTaskInfo->pRoot);
 }
 
-void qResetStreamInfoTimeWindow(qTaskInfo_t tinfo) {
-  SExecTaskInfo* pTaskInfo = (SExecTaskInfo*) tinfo;
-  if (pTaskInfo == NULL) {
-    return;
-  }
-
-  qDebug("%s set stream fill-history window:%" PRId64"-%"PRId64, GET_TASKID(pTaskInfo), INT64_MIN, INT64_MAX);
-  pTaskInfo->streamInfo.fillHistoryWindow.skey = INT64_MIN;
-  pTaskInfo->streamInfo.fillHistoryWindow.ekey = INT64_MAX;
-}
-
 static int32_t doSetStreamBlock(SOperatorInfo* pOperator, void* input, size_t numOfBlocks, int32_t type, const char* id) {
   if (pOperator->operatorType != QUERY_NODE_PHYSICAL_PLAN_STREAM_SCAN) {
     if (pOperator->numOfDownstream == 0) {
@@ -341,7 +330,7 @@ qTaskInfo_t qCreateStreamExecTaskInfo(void* msg, SReadHandle* readers, int32_t v
     return NULL;
   }
 
-  qResetStreamInfoTimeWindow(pTaskInfo);
+  qStreamInfoResetTimewindowFilter(pTaskInfo);
   return pTaskInfo;
 }
 
@@ -891,8 +880,6 @@ int32_t qStreamSourceScanParamForHistoryScanStep1(qTaskInfo_t tinfo, SVersionRan
   pStreamInfo->fillHistoryVer = *pVerRange;
   pStreamInfo->fillHistoryWindow = *pWindow;
   pStreamInfo->recoverStep = STREAM_RECOVER_STEP__PREPARE1;
-  pStreamInfo->recoverStep1Finished = false;
-  pStreamInfo->recoverStep2Finished = false;
 
   qDebug("%s step 1. set param for stream scanner for scan-history data, verRange:%" PRId64 " - %" PRId64 ", window:%" PRId64
          " - %" PRId64,
@@ -910,8 +897,6 @@ int32_t qStreamSourceScanParamForHistoryScanStep2(qTaskInfo_t tinfo, SVersionRan
   pStreamInfo->fillHistoryVer = *pVerRange;
   pStreamInfo->fillHistoryWindow = *pWindow;
   pStreamInfo->recoverStep = STREAM_RECOVER_STEP__PREPARE2;
-  pStreamInfo->recoverStep1Finished = true;
-  pStreamInfo->recoverStep2Finished = false;
 
   qDebug("%s step 2. set param for stream scanner for scan-history data, verRange:%" PRId64 " - %" PRId64
          ", window:%" PRId64 " - %" PRId64,
@@ -1050,23 +1035,15 @@ bool qStreamRecoverScanFinished(qTaskInfo_t tinfo) {
   return pTaskInfo->streamInfo.recoverScanFinished;
 }
 
-bool qStreamRecoverScanStep1Finished(qTaskInfo_t tinfo) {
+int32_t qStreamInfoResetTimewindowFilter(qTaskInfo_t tinfo) {
   SExecTaskInfo* pTaskInfo = (SExecTaskInfo*)tinfo;
-  return pTaskInfo->streamInfo.recoverStep1Finished;
-}
+  STimeWindow* pWindow = &pTaskInfo->streamInfo.fillHistoryWindow;
 
-bool qStreamRecoverScanStep2Finished(qTaskInfo_t tinfo) {
-  SExecTaskInfo* pTaskInfo = (SExecTaskInfo*)tinfo;
-  return pTaskInfo->streamInfo.recoverStep2Finished;
-}
-
-int32_t qStreamRecoverSetAllStepFinished(qTaskInfo_t tinfo) {
-  SExecTaskInfo* pTaskInfo = (SExecTaskInfo*)tinfo;
-  pTaskInfo->streamInfo.recoverStep1Finished = true;
-  pTaskInfo->streamInfo.recoverStep2Finished = true;
+  qDebug("%s set remove scan-history filter window:%" PRId64 "-%" PRId64 ", new window:%" PRId64 "-%" PRId64,
+         GET_TASKID(pTaskInfo), pWindow->skey, pWindow->ekey, INT64_MIN, INT64_MAX);
 
-  // reset the time window
-  pTaskInfo->streamInfo.fillHistoryWindow.skey = INT64_MIN;
+  pWindow->skey = INT64_MIN;
+  pWindow->ekey = INT64_MAX;
   return 0;
 }
 
diff --git a/source/libs/stream/src/streamExec.c b/source/libs/stream/src/streamExec.c
index 4ef7d6084d9a0da77c6e58254fb2c1d3e00e6eb6..763a2fdcc6e2c9212869881281d7b2a1b8f6cc6d 100644
--- a/source/libs/stream/src/streamExec.c
+++ b/source/libs/stream/src/streamExec.c
@@ -163,15 +163,14 @@ static int32_t streamTaskExecImpl(SStreamTask* pTask, SStreamQueueItem* pItem, i
 }
 
 int32_t streamScanExec(SStreamTask* pTask, int32_t batchSz) {
-  int32_t code = 0;
-
   ASSERT(pTask->info.taskLevel == TASK_LEVEL__SOURCE);
-  void* exec = pTask->exec.pExecutor;
+  int32_t code = TSDB_CODE_SUCCESS;
+  void*   exec = pTask->exec.pExecutor;
+  bool    finished = false;
 
   qSetStreamOpOpen(exec);
-  bool finished = false;
 
-  while (1) {
+  while (!finished) {
     if (streamTaskShouldPause(&pTask->status)) {
       double el = (taosGetTimestampMs() - pTask->tsInfo.step1Start) / 1000.0;
       qDebug("s-task:%s paused from the scan-history task, elapsed time:%.2fsec", pTask->id.idStr, el);
@@ -184,44 +183,30 @@ int32_t streamScanExec(SStreamTask* pTask, int32_t batchSz) {
       return -1;
     }
 
-    int32_t batchCnt = 0;
+    int32_t numOfBlocks = 0;
     while (1) {
       if (streamTaskShouldStop(&pTask->status)) {
         taosArrayDestroyEx(pRes, (FDelete)blockDataFreeRes);
         return 0;
       }
 
+      if (streamTaskShouldPause(&pTask->status)) {
+        break;
+      }
+
       SSDataBlock* output = NULL;
       uint64_t     ts = 0;
       if (qExecTask(exec, &output, &ts) < 0) {
         continue;
       }
 
-      if (output == NULL) {
-        if (qStreamRecoverScanFinished(exec)) {
-          finished = true;
-        } else {
-          qSetStreamOpOpen(exec);
-          if (streamTaskShouldPause(&pTask->status)) {
-            SStreamDataBlock* qRes = taosAllocateQitem(sizeof(SStreamDataBlock), DEF_QITEM, 0);
-            if (qRes == NULL) {
-              taosArrayDestroyEx(pRes, (FDelete)blockDataFreeRes);
-              terrno = TSDB_CODE_OUT_OF_MEMORY;
-              return -1;
-            }
-
-            qRes->type = STREAM_INPUT__DATA_BLOCK;
-            qRes->blocks = pRes;
-            code = streamTaskOutputResultBlock(pTask, qRes);
-            if (code == TSDB_CODE_UTIL_QUEUE_OUT_OF_MEMORY) {
-              taosArrayDestroyEx(pRes, (FDelete)blockDataFreeRes);
-              taosFreeQitem(qRes);
-              return code;
-            }
-            return 0;
-          }
-        }
+      if (output == NULL && qStreamRecoverScanFinished(exec)) {
+        finished = true;
         break;
+      } else {
+        if (output == NULL) {
+          ASSERT(0);
+        }
       }
 
       SSDataBlock block = {0};
@@ -229,86 +214,37 @@ int32_t streamScanExec(SStreamTask* pTask, int32_t batchSz) {
       block.info.childId = pTask->info.selfChildId;
       taosArrayPush(pRes, &block);
 
-      batchCnt++;
-
-      qDebug("s-task:%s scan exec numOfBlocks:%d, limit:%d", pTask->id.idStr, batchCnt, batchSz);
-      if (batchCnt >= batchSz) {
+      numOfBlocks++;
+      qDebug("s-task:%s scan exec numOfBlocks:%d, limit:%d", pTask->id.idStr, numOfBlocks, batchSz);
+      if (numOfBlocks >= batchSz) {
         break;
       }
     }
 
-    if (taosArrayGetSize(pRes) == 0) {
-      taosArrayDestroy(pRes);
-
-      if (finished) {
-        qDebug("s-task:%s finish recover exec task ", pTask->id.idStr);
-        break;
-      } else {
-        qDebug("s-task:%s continue recover exec task ", pTask->id.idStr);
-        continue;
+    if (taosArrayGetSize(pRes) > 0) {
+      SStreamDataBlock* qRes = taosAllocateQitem(sizeof(SStreamDataBlock), DEF_QITEM, 0);
+      if (qRes == NULL) {
+        taosArrayDestroyEx(pRes, (FDelete)blockDataFreeRes);
+        terrno = TSDB_CODE_OUT_OF_MEMORY;
+        return -1;
       }
-    }
-
-    SStreamDataBlock* qRes = taosAllocateQitem(sizeof(SStreamDataBlock), DEF_QITEM, 0);
-    if (qRes == NULL) {
-      taosArrayDestroyEx(pRes, (FDelete)blockDataFreeRes);
-      terrno = TSDB_CODE_OUT_OF_MEMORY;
-      return -1;
-    }
 
-    qRes->type = STREAM_INPUT__DATA_BLOCK;
-    qRes->blocks = pRes;
-    code = streamTaskOutputResultBlock(pTask, qRes);
-    if (code == TSDB_CODE_UTIL_QUEUE_OUT_OF_MEMORY) {
-      taosArrayDestroyEx(pRes, (FDelete)blockDataFreeRes);
-      taosFreeQitem(qRes);
-      return code;
-    }
+      qRes->type = STREAM_INPUT__DATA_BLOCK;
+      qRes->blocks = pRes;
 
-    if (finished) {
-      break;
-    }
-  }
-  return 0;
-}
-
-#if 0
-int32_t streamBatchExec(SStreamTask* pTask, int32_t batchLimit) {
-  // fetch all queue item, merge according to batchLimit
-  int32_t numOfItems = taosReadAllQitems(pTask->inputQueue1, pTask->inputQall);
-  if (numOfItems == 0) {
-    qDebug("task: %d, stream task exec over, queue empty", pTask->id.taskId);
-    return 0;
-  }
-  SStreamQueueItem* pMerged = NULL;
-  SStreamQueueItem* pItem = NULL;
-  taosGetQitem(pTask->inputQall, (void**)&pItem);
-  if (pItem == NULL) {
-    if (pMerged != NULL) {
-      // process merged item
+      code = streamTaskOutputResultBlock(pTask, qRes);
+      if (code == TSDB_CODE_UTIL_QUEUE_OUT_OF_MEMORY) {
+        taosArrayDestroyEx(pRes, (FDelete)blockDataFreeRes);
+        taosFreeQitem(qRes);
+        return code;
+      }
     } else {
-      return 0;
+      taosArrayDestroy(pRes);
     }
   }
 
-  // if drop
-  if (pItem->type == STREAM_INPUT__DESTROY) {
-    // set status drop
-    return -1;
-  }
-
-  if (pTask->info.taskLevel == TASK_LEVEL__SINK) {
-    ASSERT(((SStreamQueueItem*)pItem)->type == STREAM_INPUT__DATA_BLOCK);
-    streamTaskOutputResultBlock(pTask, (SStreamDataBlock*)pItem);
-  }
-
-  // exec impl
-
-  // output
-  // try dispatch
   return 0;
 }
-#endif
 
 int32_t updateCheckPointInfo(SStreamTask* pTask) {
   int64_t ckId = 0;
@@ -404,7 +340,7 @@ static int32_t streamTransferStateToStreamTask(SStreamTask* pTask) {
 
   // expand the query time window for stream scanner
   pTimeWindow->skey = INT64_MIN;
-  qResetStreamInfoTimeWindow(pStreamTask->exec.pExecutor);
+  qStreamInfoResetTimewindowFilter(pStreamTask->exec.pExecutor);
 
   // transfer the ownership of executor state
   streamTaskReleaseState(pTask);
diff --git a/source/libs/stream/src/streamRecover.c b/source/libs/stream/src/streamRecover.c
index df45ff2759e512b799b2f8b1203e47d3823573f5..4fa6150412e180682774ffc7080a148a3568ce73 100644
--- a/source/libs/stream/src/streamRecover.c
+++ b/source/libs/stream/src/streamRecover.c
@@ -647,19 +647,9 @@ int32_t streamTaskScanHistoryDataComplete(SStreamTask* pTask) {
   return 0;
 }
 
-bool streamTaskRecoverScanStep1Finished(SStreamTask* pTask) {
-  void* exec = pTask->exec.pExecutor;
-  return qStreamRecoverScanStep1Finished(exec);
-}
-
-bool streamTaskRecoverScanStep2Finished(SStreamTask* pTask) {
-  void* exec = pTask->exec.pExecutor;
-  return qStreamRecoverScanStep2Finished(exec);
-}
-
 int32_t streamTaskRecoverSetAllStepFinished(SStreamTask* pTask) {
   void* exec = pTask->exec.pExecutor;
-  return qStreamRecoverSetAllStepFinished(exec);
+  return qStreamInfoResetTimewindowFilter(exec);
 }
 
 bool streamHistoryTaskSetVerRangeStep2(SStreamTask* pTask, int64_t latestVer) {