diff --git a/src/query/src/qExecutor.c b/src/query/src/qExecutor.c
index fca59c9033024d771a377235cdc05369901d81db..4e9805acddc55cf07bd1a88a94a8d867a07b75f4 100644
--- a/src/query/src/qExecutor.c
+++ b/src/query/src/qExecutor.c
@@ -6359,6 +6359,19 @@ static SSDataBlock* hashGroupbyAggregate(void* param, bool* newgroup) {
   return pInfo->binfo.pRes;
 }
 
+static void doHandleRemainBlockForNewGroupImpl(SFillOperatorInfo *pInfo, SQueryRuntimeEnv* pRuntimeEnv, bool* newgroup) {
+  pInfo->totalInputRows = pInfo->existNewGroupBlock->info.rows;
+  int64_t ekey = Q_STATUS_EQUAL(pRuntimeEnv->status, QUERY_COMPLETED)?pRuntimeEnv->pQueryAttr->window.ekey:pInfo->existNewGroupBlock->info.window.ekey;
+  taosResetFillInfo(pInfo->pFillInfo, pInfo->pFillInfo->start);
+
+  taosFillSetStartInfo(pInfo->pFillInfo, pInfo->existNewGroupBlock->info.rows, ekey);
+  taosFillSetInputDataBlock(pInfo->pFillInfo, pInfo->existNewGroupBlock);
+
+  doFillTimeIntervalGapsInResults(pInfo->pFillInfo, pInfo->pRes, pRuntimeEnv->resultInfo.capacity, pInfo->p);
+  pInfo->existNewGroupBlock = NULL;
+  *newgroup = true;
+}
+
 static void doHandleRemainBlockFromNewGroup(SFillOperatorInfo *pInfo, SQueryRuntimeEnv  *pRuntimeEnv, bool *newgroup) {
   if (taosFillHasMoreResults(pInfo->pFillInfo)) {
     *newgroup = false;
@@ -6370,16 +6383,7 @@ static void doHandleRemainBlockFromNewGroup(SFillOperatorInfo *pInfo, SQueryRunt
 
   // handle the cached new group data block
   if (pInfo->existNewGroupBlock) {
-    pInfo->totalInputRows = pInfo->existNewGroupBlock->info.rows;
-    int64_t ekey = Q_STATUS_EQUAL(pRuntimeEnv->status, QUERY_COMPLETED)?pRuntimeEnv->pQueryAttr->window.ekey:pInfo->existNewGroupBlock->info.window.ekey;
-    taosResetFillInfo(pInfo->pFillInfo, pInfo->pFillInfo->start);
-
-    taosFillSetStartInfo(pInfo->pFillInfo, pInfo->existNewGroupBlock->info.rows, ekey);
-    taosFillSetInputDataBlock(pInfo->pFillInfo, pInfo->existNewGroupBlock);
-
-    doFillTimeIntervalGapsInResults(pInfo->pFillInfo, pInfo->pRes, pRuntimeEnv->resultInfo.capacity, pInfo->p);
-    pInfo->existNewGroupBlock = NULL;
-    *newgroup = true;
+    doHandleRemainBlockForNewGroupImpl(pInfo, pRuntimeEnv, newgroup);
   }
 }
 
@@ -6398,26 +6402,6 @@ static SSDataBlock* doFill(void* param, bool* newgroup) {
   if (pInfo->pRes->info.rows > pRuntimeEnv->resultInfo.threshold || (!pInfo->multigroupResult && pInfo->pRes->info.rows > 0)) {
     return pInfo->pRes;
   }
-//  if (taosFillHasMoreResults(pInfo->pFillInfo)) {
-//    *newgroup = false;
-//    doFillTimeIntervalGapsInResults(pInfo->pFillInfo, pInfo->pRes, (int32_t)pRuntimeEnv->resultInfo.capacity);
-//    return pInfo->pRes;
-//  }
-//
-//  // handle the cached new group data block
-//  if (pInfo->existNewGroupBlock) {
-//    pInfo->totalInputRows = pInfo->existNewGroupBlock->info.rows;
-//    int64_t ekey = Q_STATUS_EQUAL(pRuntimeEnv->status, QUERY_COMPLETED)?pRuntimeEnv->pQueryAttr->window.ekey:pInfo->existNewGroupBlock->info.window.ekey;
-//    taosResetFillInfo(pInfo->pFillInfo, pInfo->pFillInfo->start);
-//
-//    taosFillSetStartInfo(pInfo->pFillInfo, pInfo->existNewGroupBlock->info.rows, ekey);
-//    taosFillSetInputDataBlock(pInfo->pFillInfo, pInfo->existNewGroupBlock);
-//
-//    doFillTimeIntervalGapsInResults(pInfo->pFillInfo, pInfo->pRes, pRuntimeEnv->resultInfo.capacity);
-//    pInfo->existNewGroupBlock = NULL;
-//    *newgroup = true;
-//    return (pInfo->pRes->info.rows > 0)? pInfo->pRes:NULL;
-//  }
 
   while(1) {
     publishOperatorProfEvent(pOperator->upstream[0], QUERY_PROF_BEFORE_OPERATOR_EXEC);
@@ -6465,45 +6449,13 @@ static SSDataBlock* doFill(void* param, bool* newgroup) {
         return pInfo->pRes;
       }
 
-//      if (taosFillHasMoreResults(pInfo->pFillInfo)) {
-//        *newgroup = false;
-//        doFillTimeIntervalGapsInResults(pInfo->pFillInfo, pInfo->pRes, (int32_t)pRuntimeEnv->resultInfo.capacity);
-//        return pInfo->pRes;
-//      }
-//
-//      // handle the cached new group data block
-//      if (pInfo->existNewGroupBlock) {
-//        pInfo->totalInputRows = pInfo->existNewGroupBlock->info.rows;
-//        int64_t ekey = Q_STATUS_EQUAL(pRuntimeEnv->status, QUERY_COMPLETED)?pRuntimeEnv->pQueryAttr->window.ekey:pInfo->existNewGroupBlock->info.window.ekey;
-//        taosResetFillInfo(pInfo->pFillInfo, pInfo->pFillInfo->start);
-//
-//        taosFillSetStartInfo(pInfo->pFillInfo, pInfo->existNewGroupBlock->info.rows, ekey);
-//        taosFillSetInputDataBlock(pInfo->pFillInfo, pInfo->existNewGroupBlock);
-//
-//        doFillTimeIntervalGapsInResults(pInfo->pFillInfo, pInfo->pRes, pRuntimeEnv->resultInfo.capacity);
-//        pInfo->existNewGroupBlock = NULL;
-//        *newgroup = true;
-//
-//        if (pInfo->pRes->info.rows > pRuntimeEnv->resultInfo.threshold) {
-//          return pInfo->pRes;
-//        }
-//
-////        return (pInfo->pRes->info.rows > 0)? pInfo->pRes:NULL;
-//      }
-
     } else if (pInfo->existNewGroupBlock) {  // try next group
-      pInfo->totalInputRows = pInfo->existNewGroupBlock->info.rows;
-      int64_t ekey = pInfo->existNewGroupBlock->info.window.ekey;
-      taosResetFillInfo(pInfo->pFillInfo, pInfo->pFillInfo->start);
-
-      taosFillSetStartInfo(pInfo->pFillInfo, pInfo->existNewGroupBlock->info.rows, ekey);
-      taosFillSetInputDataBlock(pInfo->pFillInfo, pInfo->existNewGroupBlock);
-
-      doFillTimeIntervalGapsInResults(pInfo->pFillInfo, pInfo->pRes, pRuntimeEnv->resultInfo.capacity, pInfo->p);
-      pInfo->existNewGroupBlock = NULL;
-      *newgroup = true;
+      assert(pBlock != NULL);
+      doHandleRemainBlockForNewGroupImpl(pInfo, pRuntimeEnv, newgroup);
 
-      return (pInfo->pRes->info.rows > 0) ? pInfo->pRes : NULL;
+      if (pInfo->pRes->info.rows > pRuntimeEnv->resultInfo.threshold) {
+        return pInfo->pRes;
+      }
     } else {
       return NULL;
     }