From afe3171edc21aee32c59fab156a2538e0b930052 Mon Sep 17 00:00:00 2001
From: dapan1121 <wpan@taosdata.com>
Date: Wed, 15 Jun 2022 10:40:39 +0800
Subject: [PATCH] fix free issue

---
 source/libs/catalog/src/ctgUtil.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/source/libs/catalog/src/ctgUtil.c b/source/libs/catalog/src/ctgUtil.c
index 1cb2b99a67..e97c34dc26 100644
--- a/source/libs/catalog/src/ctgUtil.c
+++ b/source/libs/catalog/src/ctgUtil.c
@@ -675,7 +675,8 @@ int32_t ctgCloneTableIndex(SArray* pIndex, SArray** pRes) {
 
   for (int32_t i = 0; i < num; ++i) {
     STableIndexInfo *pInfo = taosArrayGet(pIndex, i);
-    taosArrayPush(*pRes, pInfo);
+    pInfo = taosArrayPush(*pRes, pInfo);
+    pInfo->expr = strdup(pInfo->expr);
   }
 
   return TSDB_CODE_SUCCESS;