pg_amcheck: PQclear query results

While the potential memory leak is small, ensure to PQclear the query
results before disconnecting.

Author: Jiao Shuntian <312199339@qq.com>
Reviewed-by: Daniel Gustafsson <daniel@yesql.se>
Discussion: https://postgr.es/m/tencent_F34922C91C41E76C734773E767C9FBDB9906@qq.com

diff --git a/src/bin/pg_amcheck/pg_amcheck.c b/src/bin/pg_amcheck/pg_amcheck.c
index c5ec25be22bea16c0080c1f75572bbb67f0a4d10..996833ed400c38bf445f043ebad26554dd744a10 100644 (file)
--- a/src/bin/pg_amcheck/pg_amcheck.c
+++ b/src/bin/pg_amcheck/pg_amcheck.c
@@ -587,6 +587,7 @@ main(int argc, char *argv[])
            /* Querying the catalog succeeded, but amcheck is missing. */
            pg_log_warning("skipping database \"%s\": amcheck is not installed",
                           PQdb(conn));
+           PQclear(result);
            disconnectDatabase(conn);
            conn = NULL;
            continue;