From 79ea4c2c79082e8dfe7fbfb8d659f0b0efcf2e97 Mon Sep 17 00:00:00 2001
From: Haojun Liao <hjliao@taosdata.com>
Date: Mon, 31 Oct 2022 11:43:00 +0800
Subject: [PATCH] fix(query): add null ptr check.

---
 source/libs/executor/src/executil.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/source/libs/executor/src/executil.c b/source/libs/executor/src/executil.c
index 64fe529b4f..bb87b5029a 100644
--- a/source/libs/executor/src/executil.c
+++ b/source/libs/executor/src/executil.c
@@ -1788,6 +1788,10 @@ void* tableListDestroy(STableListInfo* pTableListInfo) {
 }
 
 void tableListClear(STableListInfo* pTableListInfo) {
+  if (pTableListInfo == NULL) {
+    return;
+  }
+
   taosArrayClear(pTableListInfo->pTableList);
   taosHashClear(pTableListInfo->map);
   taosMemoryFree(pTableListInfo->groupOffset);