From be3a24de196ba81d30e134829412476e200cb228 Mon Sep 17 00:00:00 2001
From: Tom Lane <tgl@sss.pgh.pa.us>
Date: Fri, 18 Dec 2009 18:45:50 +0000
Subject: [PATCH] Force the TZ environment variable to be set during initdb.
This is to short-circuit the rather expensive identify_system_timezone()
procedure, which we have no real need for during initdb since nothing done
here depends on the timezone setting. Since we launch quite a few standalone
backends during the initdb sequence, this adds up to a significant savings,
and seems worth doing to save developer time even though it will hardly
matter to end users. Per my report today on pgsql-hackers.
---
src/bin/initdb/initdb.c | 10 +++++++++-
1 file changed, 9 insertions(+), 1 deletion(-)
diff --git a/src/bin/initdb/initdb.c b/src/bin/initdb/initdb.c
index 6f1f211c141..d7cf1a44333 100644
--- a/src/bin/initdb/initdb.c
+++ b/src/bin/initdb/initdb.c
@@ -42,7 +42,7 @@
* Portions Copyright (c) 1994, Regents of the University of California
* Portions taken from FreeBSD.
*
- * $PostgreSQL: pgsql/src/bin/initdb/initdb.c,v 1.178 2009/12/11 03:34:56 itagaki Exp $
+ * $PostgreSQL: pgsql/src/bin/initdb/initdb.c,v 1.179 2009/12/18 18:45:50 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@@ -2712,6 +2712,14 @@ main(int argc, char *argv[])
sprintf(pgdenv, "PGDATA=%s", pg_data);
putenv(pgdenv);
+ /*
+ * Also ensure that TZ is set, so that we don't waste time identifying the
+ * system timezone each of the many times we start a standalone backend.
+ * It's okay to use a hard-wired value here because nothing done during
+ * initdb cares about the timezone setting.
+ */
+ putenv("TZ=GMT");
+
if ((ret = find_other_exec(argv[0], "postgres", PG_BACKEND_VERSIONSTR,
backend_exec)) < 0)
{
--
GitLab