From e83e4397e60cb81d2865bf77153aa23011208ec4 Mon Sep 17 00:00:00 2001
From: duzhuolin <duzhuolin@gbase.cn>
Date: Thu, 27 Jul 2023 22:35:43 +0800
Subject: [PATCH] =?UTF-8?q?=E4=BF=AE=E5=A4=8D=E5=86=85=E5=AD=98=E6=B3=84?=
 =?UTF-8?q?=E6=BC=8F=E9=97=AE=E9=A2=98?=
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---
 src/bin/pg_rewind/fetch.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/bin/pg_rewind/fetch.cpp b/src/bin/pg_rewind/fetch.cpp
index 03ad5b58f..19d818eba 100755
--- a/src/bin/pg_rewind/fetch.cpp
+++ b/src/bin/pg_rewind/fetch.cpp
@@ -123,6 +123,8 @@ BuildErrorCode libpqGetParameters(void)
     }
     str2 = run_simple_query("SHOW enable_incremental_checkpoint");
     if (str2 == NULL) {
+        pg_free(str);
+        str = NULL;
         return BUILD_FATAL;
     }
     if (strcmp(str, "on") != 0 && strcmp(str2, "on") != 0) {