diff --git a/source/libs/executor/inc/executorimpl.h b/source/libs/executor/inc/executorimpl.h
index bd33d7f3c7..17a06a40c1 100644
--- a/source/libs/executor/inc/executorimpl.h
+++ b/source/libs/executor/inc/executorimpl.h
@@ -774,7 +774,8 @@ SOperatorInfo* createProjectOperatorInfo(SOperatorInfo* downstream, SExprInfo* p
 SOperatorInfo *createSortOperatorInfo(SOperatorInfo* downstream, SSDataBlock* pResBlock, SArray* pSortInfo, SExprInfo* pExprInfo, int32_t numOfCols,
                                       SArray* pIndexMap, SExecTaskInfo* pTaskInfo);
 SOperatorInfo* createMultiwaySortMergeOperatorInfo(SOperatorInfo** downStreams, int32_t numStreams,
-                                                   SSDataBlock* pResBlock, SArray* pSortInfo, SExecTaskInfo* pTaskInfo);
+                                                   SSDataBlock* pResBlock, SArray* pSortInfo, SArray* pColMatchColInfo,
+                                                   SExecTaskInfo* pTaskInfo);
 SOperatorInfo* createSortedMergeOperatorInfo(SOperatorInfo** downstream, int32_t numOfDownstream, SExprInfo* pExprInfo, int32_t num, SArray* pSortInfo, SArray* pGroupInfo, SExecTaskInfo* pTaskInfo);
 
 SOperatorInfo* createIntervalOperatorInfo(SOperatorInfo* downstream, SExprInfo* pExprInfo, int32_t numOfCols,
diff --git a/source/libs/executor/src/executorimpl.c b/source/libs/executor/src/executorimpl.c
index d094dc0203..beb5e1152f 100644
--- a/source/libs/executor/src/executorimpl.c
+++ b/source/libs/executor/src/executorimpl.c
@@ -4524,8 +4524,12 @@ SOperatorInfo* createOperatorTree(SPhysiNode* pPhyNode, SExecTaskInfo* pTaskInfo
     SSDataBlock* pResBlock = createResDataBlock(pDescNode);
 
     SArray*      sortInfo = createSortInfo(pMergePhyNode->pMergeKeys);
+    int32_t numOfOutputCols = 0;
+    SArray* pColList = NULL;
+        //extractColMatchInfo(pMergePhyNode->pTargets, pDescNode, &numOfOutputCols, pTaskInfo, COL_MATCH_FROM_SLOT_ID);
 
-    pOptr = createMultiwaySortMergeOperatorInfo(ops, size, pResBlock, sortInfo, pTaskInfo);
+
+    pOptr = createMultiwaySortMergeOperatorInfo(ops, size, pResBlock, sortInfo, pColList, pTaskInfo);
   } else if (QUERY_NODE_PHYSICAL_PLAN_SESSION_WINDOW == type) {
     SSessionWinodwPhysiNode* pSessionNode = (SSessionWinodwPhysiNode*)pPhyNode;
 
diff --git a/source/libs/executor/src/sortoperator.c b/source/libs/executor/src/sortoperator.c
index 0618c80682..c219acb687 100644
--- a/source/libs/executor/src/sortoperator.c
+++ b/source/libs/executor/src/sortoperator.c
@@ -224,30 +224,11 @@ typedef struct SMultiwaySortMergeOperatorInfo {
 
   SArray*      pSortInfo;
   SSortHandle* pSortHandle;
+  SArray*      pColMatchInfo;  // for index map from table scan output
 
   int64_t      startTs;       // sort start time
 } SMultiwaySortMergeOperatorInfo;
 
-SSDataBlock* getMultiwaySortMergedBlockData(SSortHandle* pHandle, SSDataBlock* pDataBlock, int32_t capacity) {
-  blockDataCleanup(pDataBlock);
-
-  blockDataEnsureCapacity(pDataBlock, capacity);
-
-  while (1) {
-    STupleHandle* pTupleHandle = tsortNextTuple(pHandle);
-    if (pTupleHandle == NULL) {
-      break;
-    }
-
-    appendOneRowToDataBlock(pDataBlock, pTupleHandle);
-    if (pDataBlock->info.rows >= capacity) {
-      return pDataBlock;
-    }
-  }
-
-  return (pDataBlock->info.rows > 0) ? pDataBlock : NULL;
-}
-
 
 int32_t doOpenMultiwaySortMergeOperator(SOperatorInfo* pOperator) {
   SMultiwaySortMergeOperatorInfo * pInfo = pOperator->info;
@@ -261,7 +242,7 @@ int32_t doOpenMultiwaySortMergeOperator(SOperatorInfo* pOperator) {
 
   int32_t numOfBufPage = pInfo->sortBufSize / pInfo->bufPageSize;
 
-  pInfo->pSortHandle = tsortCreateSortHandle(pInfo->pSortInfo, NULL, SORT_MULTISOURCE_MERGE,
+  pInfo->pSortHandle = tsortCreateSortHandle(pInfo->pSortInfo, pInfo->pColMatchInfo, SORT_MULTISOURCE_MERGE,
                                              pInfo->bufPageSize, numOfBufPage, NULL, pTaskInfo->id.str);
 
   tsortSetFetchRawDataFp(pInfo->pSortHandle, loadNextDataBlock, NULL, NULL);
@@ -298,7 +279,10 @@ SSDataBlock* doMultiwaySortMerge(SOperatorInfo* pOperator) {
     longjmp(pTaskInfo->env, code);
   }
 
-  SSDataBlock* pBlock = getMultiwaySortMergedBlockData(pInfo->pSortHandle, pInfo->binfo.pRes, pOperator->resultInfo.capacity);
+  SSDataBlock* pBlock = getSortedBlockData(pInfo->pSortHandle,
+                                           pInfo->binfo.pRes,
+                                           pOperator->resultInfo.capacity,
+                                           pInfo->pColMatchInfo);
 
   if (pBlock != NULL) {
     pOperator->resultInfo.totalRows += pBlock->info.rows;
@@ -328,7 +312,8 @@ int32_t getMultiwaySortMergeExplainExecInfo(SOperatorInfo* pOptr, void** pOptrEx
 }
 
 SOperatorInfo* createMultiwaySortMergeOperatorInfo(SOperatorInfo** downStreams, int32_t numStreams,
-                                                   SSDataBlock* pResBlock, SArray* pSortInfo, SExecTaskInfo* pTaskInfo) {
+                                                   SSDataBlock* pResBlock, SArray* pSortInfo, SArray* pColMatchColInfo,
+                                                   SExecTaskInfo* pTaskInfo) {
   SMultiwaySortMergeOperatorInfo* pInfo = taosMemoryCalloc(1, sizeof(SMultiwaySortMergeOperatorInfo));
   SOperatorInfo*     pOperator = taosMemoryCalloc(1, sizeof(SOperatorInfo));
   int32_t            rowSize = pResBlock->info.rowSize;
@@ -342,6 +327,7 @@ SOperatorInfo* createMultiwaySortMergeOperatorInfo(SOperatorInfo** downStreams,
   initResultSizeInfo(pOperator, 1024);
 
   pInfo->pSortInfo    = pSortInfo;
+  pInfo->pColMatchInfo= pColMatchColInfo;
   pOperator->name     = "MultiwaySortMerge";
   pOperator->operatorType = QUERY_NODE_PHYSICAL_PLAN_MERGE;
   pOperator->blocking = true;