From 9f984ba6d23dc6eecebf479ab1d3f2e550a4e9be Mon Sep 17 00:00:00 2001
From: Heikki Linnakangas <heikki.linnakangas@iki.fi>
Date: Wed, 7 Apr 2021 13:22:05 +0300
Subject: Add sortsupport for gist_btree opclasses, for faster index builds.

Commit 16fa9b2b30 introduced a faster way to build GiST indexes, by
sorting all the data. This commit adds the sortsupport functions needed
to make use of that feature for btree_gist.

Author: Andrey Borodin
Discussion: https://www.postgresql.org/message-id/2F3F7265-0D22-44DB-AD71-8554C743D943@yandex-team.ru
---
 contrib/btree_gist/sql/interval.sql | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'contrib/btree_gist/sql/interval.sql')

diff --git a/contrib/btree_gist/sql/interval.sql b/contrib/btree_gist/sql/interval.sql
index 346d6adcb51..6f9b1d4a39a 100644
--- a/contrib/btree_gist/sql/interval.sql
+++ b/contrib/btree_gist/sql/interval.sql
@@ -18,7 +18,11 @@ SELECT count(*) FROM intervaltmp WHERE a >  '199 days 21:21:23';
 
 SELECT a, a <-> '199 days 21:21:23' FROM intervaltmp ORDER BY a <-> '199 days 21:21:23' LIMIT 3;
 
+SET client_min_messages = DEBUG1;
 CREATE INDEX intervalidx ON intervaltmp USING gist ( a );
+CREATE INDEX intervalidx_b ON intervaltmp USING gist ( a ) WITH (buffering=on);
+DROP INDEX intervalidx_b;
+RESET client_min_messages;
 
 SET enable_seqscan=off;
 
-- 
cgit v1.2.3

