diff --git a/include/libs/nodes/querynodes.h b/include/libs/nodes/querynodes.h
index 161d713ecc..f3c84c11bc 100644
--- a/include/libs/nodes/querynodes.h
+++ b/include/libs/nodes/querynodes.h
@@ -56,7 +56,7 @@ typedef struct SExprNode {
   ENodeType type;
   SDataType resType;
   char      aliasName[TSDB_COL_NAME_LEN + TSDB_COL_NAME_EXLEN];
-  char      userAlias[TSDB_COL_NAME_LEN];
+  char      userAlias[TSDB_COL_NAME_LEN + TSDB_COL_NAME_EXLEN];
   SArray*   pAssociation;
   bool      asAlias;
   bool      asParam;
diff --git a/source/libs/executor/src/executil.c b/source/libs/executor/src/executil.c
index 13316a09ec..c57accfa66 100644
--- a/source/libs/executor/src/executil.c
+++ b/source/libs/executor/src/executil.c
@@ -2162,6 +2162,8 @@ _end:
     taosArrayDestroyP(pValCtxArray, deleteSubsidiareCtx);
     taosMemoryFreeClear(pValCtx);
     qError("%s failed at line %d since %s", __func__, lino, tstrerror(code));
+  } else {
+    taosArrayDestroy(pValCtxArray);
   }
   return code;
 }