diff --git a/source/libs/executor/inc/executorimpl.h b/source/libs/executor/inc/executorimpl.h
index 00f2e09e0c..9d77c9badd 100644
--- a/source/libs/executor/inc/executorimpl.h
+++ b/source/libs/executor/inc/executorimpl.h
@@ -240,7 +240,7 @@ typedef struct SColMatchInfo {
   int32_t srcSlotId;     // source slot id
   int32_t colId;
   int32_t targetSlotId;
-  bool    output;
+  bool    output;        // todo remove this?
   bool    reserved;
   int32_t matchType;     // determinate the source according to col id or slot id
 } SColMatchInfo;
diff --git a/source/libs/executor/src/executil.c b/source/libs/executor/src/executil.c
index 24eae225bf..fcdc4c840e 100644
--- a/source/libs/executor/src/executil.c
+++ b/source/libs/executor/src/executil.c
@@ -700,7 +700,7 @@ void relocateColumnData(SSDataBlock* pBlock, const SArray* pColMatchInfo, SArray
   while (i < numOfSrcCols && j < taosArrayGetSize(pColMatchInfo)) {
     SColumnInfoData* p = taosArrayGet(pCols, i);
     SColMatchInfo*   pmInfo = taosArrayGet(pColMatchInfo, j);
-    if (!outputEveryColumn && !pmInfo->output) {
+    if (!outputEveryColumn && pmInfo->reserved) {
       j++;
       continue;
     }