diff --git a/source/libs/executor/src/scanoperator.c b/source/libs/executor/src/scanoperator.c
index a9d03aebbe365f4c4e25129cdeb1b2c02f51c505..8df22bbb1131c3da62dde1fc64754da38facdf59 100644
--- a/source/libs/executor/src/scanoperator.c
+++ b/source/libs/executor/src/scanoperator.c
@@ -2557,9 +2557,7 @@ typedef struct STableMergeScanInfo {
   SArray*                pColMatchInfo;
   int32_t                numOfOutput;
 
-  SExprInfo*      pPseudoExpr;
-  int32_t         numOfPseudoExpr;
-  SqlFunctionCtx* pPseudoCtx;
+  SExprSupp       pseudoSup;
 
   SQueryTableDataCond cond;
   int32_t             scanFlag;  // table scan flag to denote if it is a repeat/reverse/main scan
@@ -2974,6 +2972,7 @@ void destroyTableMergeScanOperatorInfo(void* param, int32_t numOfOutput) {
   pTableScanInfo->pSortInputBlock = blockDataDestroy(pTableScanInfo->pSortInputBlock);
 
   taosArrayDestroy(pTableScanInfo->pSortInfo);
+  cleanupExprSupp(&pTableScanInfo->pseudoSup);
 
   taosMemoryFreeClear(param);
 }
@@ -3031,8 +3030,9 @@ SOperatorInfo* createTableMergeScanOperatorInfo(STableScanPhysiNode* pTableScanN
   }
 
   if (pTableScanNode->scan.pScanPseudoCols != NULL) {
-    pInfo->pPseudoExpr = createExprInfo(pTableScanNode->scan.pScanPseudoCols, NULL, &pInfo->numOfPseudoExpr);
-    pInfo->pPseudoCtx = createSqlFunctionCtx(pInfo->pPseudoExpr, pInfo->numOfPseudoExpr, &pInfo->rowEntryInfoOffset);
+    SExprSupp* pSup = &pInfo->pseudoSup;
+    pSup->pExprInfo = createExprInfo(pTableScanNode->scan.pScanPseudoCols, NULL, &pSup->numOfExprs);
+    pSup->pCtx = createSqlFunctionCtx(pSup->pExprInfo, pSup->numOfExprs, &pSup->rowEntryInfoOffset);
   }
 
   pInfo->scanInfo = (SScanInfo){.numOfAsc = pTableScanNode->scanSeq[0], .numOfDesc = pTableScanNode->scanSeq[1]};