From 02eab531d2adc93c235350fde50546c56b16118f Mon Sep 17 00:00:00 2001
From: Mark Zealey <mark@markandruth.co.uk>
Date: Fri, 8 Jul 2022 10:20:14 +0100
Subject: [PATCH] Enable HOT updates on tables which meet criteria for them

This reduces 3 IO's per update to 1 IO per update in a typical case.
---
 sql/pg.sql | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/sql/pg.sql b/sql/pg.sql
index 52f9e5ec7..7e8151175 100644
--- a/sql/pg.sql
+++ b/sql/pg.sql
@@ -451,3 +451,17 @@ CREATE TABLE mqtt_pub (
     user_properties bytea NOT NULL,
     expiry bigint NOT NULL
 );
+
+-- Enable HOT updates on tables which meet criteria for them. This reduces 3
+-- IO's per update to 1 IO per update in a typical case.
+ALTER TABLE archive_prefs SET (fillfactor = 90);
+ALTER TABLE users SET (fillfactor = 90);
+ALTER TABLE last SET (fillfactor = 90);
+ALTER TABLE muc_room SET (fillfactor = 90);
+ALTER TABLE muc_room_subscribers SET (fillfactor = 90);
+ALTER TABLE pubsub_item SET (fillfactor = 90);
+ALTER TABLE pubsub_node SET (fillfactor = 90);
+ALTER TABLE pubsub_node_option SET (fillfactor = 90);
+ALTER TABLE rosterusers SET (fillfactor = 90);
+ALTER TABLE vcard SET (fillfactor = 90);
+ALTER TABLE vcard_search SET (fillfactor = 90);