From 57b8617fa4d957c0cba69ec901f1af7b523d32a5 Mon Sep 17 00:00:00 2001
From: dengyihao <luomoxyz@126.com>
Date: Thu, 4 Jun 2020 06:07:53 +0000
Subject: [PATCH] fix crash caused by double free when fail to initQInfo

---
 src/query/src/qExecutor.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/query/src/qExecutor.c b/src/query/src/qExecutor.c
index cf63c3a078..f6c7863b84 100644
--- a/src/query/src/qExecutor.c
+++ b/src/query/src/qExecutor.c
@@ -5870,7 +5870,7 @@ _over:
   taosArrayDestroy(pTableIdList);
 
   if (code != TSDB_CODE_SUCCESS) {
-    tfree(*pQInfo);
+    //pQInfo already freed in initQInfo, but *pQInfo may not pointer to null; 
     *pQInfo = NULL;
   }
 
-- 
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