From: Nathan Bossart <nathan@postgresql.org>
Date: Tue, 4 Feb 2025 19:26:57 +0000 (-0600)
Subject: vacuumdb: Add missing PQfinish() calls to vacuum_one_database().
X-Git-Tag: REL_18_BETA1~954
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=f3e4aeb744da6acf909e9c5a7a83338fba1984a7;p=thirdparty%2Fpostgresql.git

vacuumdb: Add missing PQfinish() calls to vacuum_one_database().

A few of the version checks in vacuum_one_database() do not call
PQfinish() before exiting.  This precedent was unintentionally
established in commit 00d1e88d36, and while it's probably not too
problematic, it seems better to properly close the connection.

Reviewed-by: Daniel Gustafsson <daniel@yesql.se>
Discussion: https://postgr.es/m/Z6JAwqN1I8ljTuXp%40nathan
Backpatch-through: 13
---

diff --git a/src/bin/scripts/vacuumdb.c b/src/bin/scripts/vacuumdb.c
index 3dc428674ae..74fbc7ef033 100644
--- a/src/bin/scripts/vacuumdb.c
+++ b/src/bin/scripts/vacuumdb.c
@@ -557,20 +557,32 @@ vacuum_one_database(ConnParams *cparams,
 	}
 
 	if (vacopts->min_xid_age != 0 && PQserverVersion(conn) < 90600)
+	{
+		PQfinish(conn);
 		pg_fatal("cannot use the \"%s\" option on server versions older than PostgreSQL %s",
 				 "--min-xid-age", "9.6");
+	}
 
 	if (vacopts->min_mxid_age != 0 && PQserverVersion(conn) < 90600)
+	{
+		PQfinish(conn);
 		pg_fatal("cannot use the \"%s\" option on server versions older than PostgreSQL %s",
 				 "--min-mxid-age", "9.6");
+	}
 
 	if (vacopts->parallel_workers >= 0 && PQserverVersion(conn) < 130000)
+	{
+		PQfinish(conn);
 		pg_fatal("cannot use the \"%s\" option on server versions older than PostgreSQL %s",
 				 "--parallel", "13");
+	}
 
 	if (vacopts->buffer_usage_limit && PQserverVersion(conn) < 160000)
+	{
+		PQfinish(conn);
 		pg_fatal("cannot use the \"%s\" option on server versions older than PostgreSQL %s",
 				 "--buffer-usage-limit", "16");
+	}
 
 	/* skip_database_stats is used automatically if server supports it */
 	vacopts->skip_database_stats = (PQserverVersion(conn) >= 160000);