From 4532bcdf4e89febddf75e74c363d7767e25b62b6 Mon Sep 17 00:00:00 2001
From: Haojun Liao <hjliao@taosdata.com>
Date: Tue, 26 Jul 2022 13:26:29 +0800
Subject: [PATCH] fix(query):set ptr to be null after releasing resources.

---
 source/dnode/vnode/src/tsdb/tsdbUtil.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/source/dnode/vnode/src/tsdb/tsdbUtil.c b/source/dnode/vnode/src/tsdb/tsdbUtil.c
index 872357fc93..805e49a705 100644
--- a/source/dnode/vnode/src/tsdb/tsdbUtil.c
+++ b/source/dnode/vnode/src/tsdb/tsdbUtil.c
@@ -24,6 +24,8 @@ void tMapDataReset(SMapData *pMapData) {
 void tMapDataClear(SMapData *pMapData) {
   tFree((uint8_t *)pMapData->aOffset);
   tFree(pMapData->pData);
+  pMapData->pData = NULL;
+  pMapData->aOffset = NULL;
 }
 
 int32_t tMapDataPutItem(SMapData *pMapData, void *pItem, int32_t (*tPutItemFn)(uint8_t *, void *)) {