From d6a18f459a67dc7f4bd4de7346285af29f183182 Mon Sep 17 00:00:00 2001
From: Bruce Momjian <bruce@momjian.us>
Date: Sun, 16 Dec 2007 13:05:30 +0000
Subject: [PATCH] Mention that HOT helps with DELETE space reuse.
---
doc/src/sgml/release.sgml | 9 +++++----
1 file changed, 5 insertions(+), 4 deletions(-)
diff --git a/doc/src/sgml/release.sgml b/doc/src/sgml/release.sgml
index e305ca19c02..8fd8547db60 100644
--- a/doc/src/sgml/release.sgml
+++ b/doc/src/sgml/release.sgml
@@ -1,4 +1,4 @@
-<!-- $PostgreSQL: pgsql/doc/src/sgml/release.sgml,v 1.570 2007/12/16 07:19:32 momjian Exp $ -->
+<!-- $PostgreSQL: pgsql/doc/src/sgml/release.sgml,v 1.571 2007/12/16 13:05:30 momjian Exp $ -->
<!--
Typical markup:
@@ -204,7 +204,7 @@ do it for earlier branch release files.
<listitem>
<para>
Heap-Only Tuples (<acronym>HOT</>) accelerate space reuse for
- most <command>UPDATE</>s
+ most <command>UPDATE</>s and <command>DELETE</>s
</para>
</listitem>
@@ -736,7 +736,8 @@ current_date < 2017-11-17
<listitem>
<para>
Heap-Only Tuples (<acronym>HOT</>) accelerate space reuse for most
- <command>UPDATE</>s (Pavan Deolasee, with ideas from many others)
+ <command>UPDATE</>s and <command>DELETE</>s (Pavan Deolasee, with
+ ideas from many others)
</para>
<para>
@@ -744,7 +745,7 @@ current_date < 2017-11-17
behind, as do failed <command>INSERT</>s. Previously only
<command>VACUUM</> could reclaim space taken by dead tuples. With
<acronym>HOT</> dead tuple space can be reclaimed at the time of
- <command>UPDATE</> or <command>INSERT</> if no changes are made to
+ <command>INSERT</> or <command>UPDATE</> if no changes are made to
indexed columns. This allows for more consistent performance.
Also, <acronym>HOT</> avoids adding duplicate index entries.
</para>
--
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