database/postgres
1
0
Fork 0
mirror of https://github.com/postgres/postgres.git synced 2025-11-03 09:13:20 +03:00
Code Activity

Doc: mention that VACUUM can't utilize over 1GB of RAM

Browse Source 
Document that setting maintenance_work_mem to values over 1GB has no
effect on VACUUM.

Reported-by: Martín Marqués
Author: Laurenz Albe
Discussion: https://postgr.es/m/CABeG9LsZ2ozUMcqtqWu_-GiFKB17ih3p8wBHXcpfnHqhCnsc7A%40mail.gmail.com
Backpatch-through: 9.6, oldest supported release
This commit is contained in:
David Rowley
2021-07-04 22:32:46 +12:00
parent 58f759fd03
commit 1c84f355ac
1 changed files with 6 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
doc/src/sgml/config.sgml
View File

@@ -1489,6 +1489,12 @@ include_dir 'conf.d'
too high. It may be useful to control for this by separately
setting <xref linkend="guc-autovacuum-work-mem">.
</para>
<para>
Additionally, <command>VACUUM</command> is only able to utilize up to
a maximum of <literal>1GB</literal> of memory, so
<varname>maintenance_work_mem</varname> values higher than this have
no effect on <command>VACUUM</command>.
</para>
</listitem>
</varlistentry>