From 23c1aa2db094765b2118d9cdf43e7f9446868666 Mon Sep 17 00:00:00 2001
From: Ganlin Zhao <ganlinzhao@hotmail.com>
Date: Mon, 15 May 2023 17:55:37 +0800
Subject: [PATCH] fix: fix multithread issue in destroyTimesliceOperator

---
 source/libs/executor/src/timesliceoperator.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/source/libs/executor/src/timesliceoperator.c b/source/libs/executor/src/timesliceoperator.c
index d56595dae9..c59669fc53 100644
--- a/source/libs/executor/src/timesliceoperator.c
+++ b/source/libs/executor/src/timesliceoperator.c
@@ -894,8 +894,10 @@ void destroyTimeSliceOperatorInfo(void* param) {
   }
   taosArrayDestroy(pInfo->pLinearInfo);
 
-  taosMemoryFree(pInfo->pPrevGroupKey->pData);
-  taosMemoryFree(pInfo->pPrevGroupKey);
+  if (pInfo->pPrevGroupKey) {
+    taosMemoryFree(pInfo->pPrevGroupKey->pData);
+    taosMemoryFree(pInfo->pPrevGroupKey);
+  }
 
   cleanupExprSupp(&pInfo->scalarSup);