diff --git a/source/libs/scalar/src/scalar.c b/source/libs/scalar/src/scalar.c
index 44f792869e..8f49436953 100644
--- a/source/libs/scalar/src/scalar.c
+++ b/source/libs/scalar/src/scalar.c
@@ -603,7 +603,7 @@ int32_t sclWalkCaseWhenList(SScalarCtx *ctx, SNodeList *pList, struct SListCell
 
     bool *equal = (bool *)colDataGetData(pComp->columnData, rowIdx);
     if (*equal) {
-      bool isNull = colDataIsNull_s(pThen->columnData, (pThen->numOfRows > 1 ? rowIdx : 0));
+      bool  isNull = colDataIsNull_s(pThen->columnData, (pThen->numOfRows > 1 ? rowIdx : 0));
       char *pData = isNull ? NULL : colDataGetData(pThen->columnData, (pThen->numOfRows > 1 ? rowIdx : 0));
       colDataAppend(output->columnData, rowIdx, pData, isNull);
 
@@ -617,7 +617,7 @@ int32_t sclWalkCaseWhenList(SScalarCtx *ctx, SNodeList *pList, struct SListCell
   }
 
   if (pElse) {
-    bool isNull = colDataIsNull_s(pElse->columnData, (pElse->numOfRows > 1 ? rowIdx : 0));
+    bool  isNull = colDataIsNull_s(pElse->columnData, (pElse->numOfRows > 1 ? rowIdx : 0));
     char *pData = isNull ? NULL : colDataGetData(pElse->columnData, (pElse->numOfRows > 1 ? rowIdx : 0));
     colDataAppend(output->columnData, rowIdx, pData, isNull);
 
@@ -666,7 +666,7 @@ int32_t sclWalkWhenList(SScalarCtx *ctx, SNodeList *pList, struct SListCell *pCe
     bool *whenValue = (bool *)colDataGetData(pWhen->columnData, (pWhen->numOfRows > 1 ? rowIdx : 0));
 
     if (*whenValue) {
-      bool isNull = colDataIsNull_s(pThen->columnData, (pThen->numOfRows > 1 ? rowIdx : 0));
+      bool  isNull = colDataIsNull_s(pThen->columnData, (pThen->numOfRows > 1 ? rowIdx : 0));
       char *pData = isNull ? NULL : colDataGetData(pThen->columnData, (pThen->numOfRows > 1 ? rowIdx : 0));
       colDataAppend(output->columnData, rowIdx, pData, isNull);
 
@@ -685,7 +685,7 @@ int32_t sclWalkWhenList(SScalarCtx *ctx, SNodeList *pList, struct SListCell *pCe
   }
 
   if (pElse) {
-    bool isNull = colDataIsNull_s(pElse->columnData, (pElse->numOfRows > 1 ? rowIdx : 0));
+    bool  isNull = colDataIsNull_s(pElse->columnData, (pElse->numOfRows > 1 ? rowIdx : 0));
     char *pData = isNull ? NULL : colDataGetData(pElse->columnData, (pElse->numOfRows > 1 ? rowIdx : 0));
     colDataAppend(output->columnData, rowIdx, pData, isNull);