diff --git a/source/libs/executor/inc/executorimpl.h b/source/libs/executor/inc/executorimpl.h
index 577f9772be1223ba29bc087872f6f5e2bea9f57f..f16b4852409380a77c0783af22c67e6f06e6855c 100644
--- a/source/libs/executor/inc/executorimpl.h
+++ b/source/libs/executor/inc/executorimpl.h
@@ -917,9 +917,8 @@ SOperatorInfo* createStreamFinalIntervalOperatorInfo(SOperatorInfo* downstream,
 SOperatorInfo* createStreamIntervalOperatorInfo(SOperatorInfo* downstream, SExprInfo* pExprInfo, int32_t numOfCols,
                                                 SSDataBlock* pResBlock, SInterval* pInterval, int32_t primaryTsSlotId,
                                                 STimeWindowAggSupp *pTwAggSupp, SExecTaskInfo* pTaskInfo);
-SOperatorInfo* createSessionAggOperatorInfo(SOperatorInfo* downstream, SExprInfo* pExprInfo, int32_t numOfCols,
-                                            SSDataBlock* pResBlock, int64_t gap, int32_t tsSlotId, STimeWindowAggSupp* pTwAggSupp,
-                                            SNode* pCondition, SExecTaskInfo* pTaskInfo);
+SOperatorInfo* createSessionAggOperatorInfo(SOperatorInfo* downstream, SSessionWinodwPhysiNode* pSessionNode,
+                                            SExecTaskInfo* pTaskInfo);
 SOperatorInfo* createGroupOperatorInfo(SOperatorInfo* downstream, SExprInfo* pExprInfo, int32_t numOfCols,
                                        SSDataBlock* pResultBlock, SArray* pGroupColList, SNode* pCondition,
                                        SExprInfo* pScalarExprInfo, int32_t numOfScalarExpr, SExecTaskInfo* pTaskInfo);
diff --git a/source/libs/executor/src/executorimpl.c b/source/libs/executor/src/executorimpl.c
index e52cbf40a9470bf9a8ee6e725a94240e9ba63493..6804a1258c2db16cf231042267e27de9b528116a 100644
--- a/source/libs/executor/src/executorimpl.c
+++ b/source/libs/executor/src/executorimpl.c
@@ -4171,16 +4171,7 @@ SOperatorInfo* createOperatorTree(SPhysiNode* pPhyNode, SExecTaskInfo* pTaskInfo
     pOptr = createMultiwayMergeOperatorInfo(ops, size, pMergePhyNode, pTaskInfo);
   } else if (QUERY_NODE_PHYSICAL_PLAN_MERGE_SESSION == type) {
     SSessionWinodwPhysiNode* pSessionNode = (SSessionWinodwPhysiNode*)pPhyNode;
-
-    STimeWindowAggSupp as = {.waterMark = pSessionNode->window.watermark,
-                             .calTrigger = pSessionNode->window.triggerType};
-
-    SExprInfo*   pExprInfo = createExprInfo(pSessionNode->window.pFuncs, NULL, &num);
-    SSDataBlock* pResBlock = createResDataBlock(pPhyNode->pOutputDataBlockDesc);
-    int32_t      tsSlotId = ((SColumnNode*)pSessionNode->window.pTspk)->slotId;
-
-    pOptr = createSessionAggOperatorInfo(ops[0], pExprInfo, num, pResBlock, pSessionNode->gap, tsSlotId, &as,
-                                         pPhyNode->pConditions, pTaskInfo);
+    pOptr = createSessionAggOperatorInfo(ops[0], pSessionNode, pTaskInfo);
   } else if (QUERY_NODE_PHYSICAL_PLAN_STREAM_SESSION == type) {
     pOptr = createStreamSessionAggOperatorInfo(ops[0], pPhyNode, pTaskInfo);
   } else if (QUERY_NODE_PHYSICAL_PLAN_STREAM_SEMI_SESSION == type) {
diff --git a/source/libs/executor/src/timewindowoperator.c b/source/libs/executor/src/timewindowoperator.c
index 802e1f2306776165ccd1a45fd389adc6b5307ead..a14f554cf5227dc305f3b9e84f902be80fb7acbf 100644
--- a/source/libs/executor/src/timewindowoperator.c
+++ b/source/libs/executor/src/timewindowoperator.c
@@ -2439,12 +2439,14 @@ void destroySWindowOperatorInfo(void* param, int32_t numOfOutput) {
   SSessionAggOperatorInfo* pInfo = (SSessionAggOperatorInfo*)param;
   cleanupBasicInfo(&pInfo->binfo);
 
+  colDataDestroy(&pInfo->twAggSup.timeWindowData);
+
+  cleanupAggSup(&pInfo->aggSup);
+  cleanupGroupResInfo(&pInfo->groupResInfo);
   taosMemoryFreeClear(param);
 }
 
-SOperatorInfo* createSessionAggOperatorInfo(SOperatorInfo* downstream, SExprInfo* pExprInfo, int32_t numOfCols,
-                                            SSDataBlock* pResBlock, int64_t gap, int32_t tsSlotId,
-                                            STimeWindowAggSupp* pTwAggSupp, SNode* pCondition,
+SOperatorInfo* createSessionAggOperatorInfo(SOperatorInfo* downstream, SSessionWinodwPhysiNode* pSessionNode,
                                             SExecTaskInfo* pTaskInfo) {
   SSessionAggOperatorInfo* pInfo = taosMemoryCalloc(1, sizeof(SSessionAggOperatorInfo));
   SOperatorInfo*           pOperator = taosMemoryCalloc(1, sizeof(SOperatorInfo));
@@ -2455,6 +2457,10 @@ SOperatorInfo* createSessionAggOperatorInfo(SOperatorInfo* downstream, SExprInfo
   size_t keyBufSize = sizeof(int64_t) + sizeof(int64_t) + POINTER_BYTES;
   initResultSizeInfo(&pOperator->resultInfo, 4096);
 
+  int32_t numOfCols = 0;
+  SExprInfo*   pExprInfo = createExprInfo(pSessionNode->window.pFuncs, NULL, &numOfCols);
+  SSDataBlock* pResBlock = createResDataBlock(pSessionNode->window.node.pOutputDataBlockDesc);
+
   int32_t code = initAggInfo(&pOperator->exprSupp, &pInfo->aggSup, pExprInfo, numOfCols, keyBufSize, pTaskInfo->id.str);
   if (code != TSDB_CODE_SUCCESS) {
     goto _error;
@@ -2462,16 +2468,19 @@ SOperatorInfo* createSessionAggOperatorInfo(SOperatorInfo* downstream, SExprInfo
 
   initBasicInfo(&pInfo->binfo, pResBlock);
 
-  pInfo->twAggSup = *pTwAggSupp;
+  pInfo->twAggSup.waterMark = pSessionNode->window.watermark;
+  pInfo->twAggSup.calTrigger = pSessionNode->window.triggerType;
+  pInfo->gap = pSessionNode->gap;
+
   initResultRowInfo(&pInfo->binfo.resultRowInfo);
   initExecTimeWindowInfo(&pInfo->twAggSup.timeWindowData, &pTaskInfo->window);
 
-  pInfo->tsSlotId = tsSlotId;
-  pInfo->gap = gap;
-  pInfo->binfo.pRes = pResBlock;
+  pInfo->tsSlotId      = ((SColumnNode*)pSessionNode->window.pTspk)->slotId;
+  pInfo->binfo.pRes    = pResBlock;
   pInfo->winSup.prevTs = INT64_MIN;
-  pInfo->reptScan = false;
-  pInfo->pCondition = pCondition;
+  pInfo->reptScan      = false;
+  pInfo->pCondition    = pSessionNode->window.node.pConditions;
+
   pOperator->name = "SessionWindowAggOperator";
   pOperator->operatorType = QUERY_NODE_PHYSICAL_PLAN_MERGE_SESSION;
   pOperator->blocking = true;