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doc: Mention the rename of wal_keep_segments GUC in release note. 

Commit f5dff45962 renamed wal_keep_segments to wal_keep_size.
This commit adds the mention to this change in the release note.

Author: Fujii Masao
Reviewed-by: David Steele
Discussion: https://postgr.es/m/dc4768f2-1eff-d2fc-35ba-6b2985b7cb6c@oss.nttdata.com
This commit is contained in:
Fujii Masao 2020-07-28 11:23:02 +09:00
parent cebe10a5f3
commit 128fd0a65a
1 changed files with 22 additions and 0 deletions
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doc/src/sgml/release-13.sgml
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@ -209,6 +209,28 @@ Author: Fujii Masao <fujii@postgresql.org>
<listitem>
<!--
Author: Fujii Masao <fujii@postgresql.org>
2020-07-20 [f5dff45962] Rename wal_keep_segments to wal_keep_size.
-->
<para>
Rename configuration parameter <varname>wal_keep_segments</varname>
to <xref linkend="guc-wal-keep-size"/> (Fujii Masao)
</para>
<para>
This determines how much WAL to retain for the standby server,
specified in megabytes rather than number of files. If you
previously used <varname>wal_keep_segments</varname>,
the following formula will give you an approximately equivalent setting:
<programlisting>
wal_keep_size = wal_keep_segments * wal_segment_size (typically 16MB)
</programlisting>
</para>
</listitem>
<listitem>
<!--
Author: Tom Lane <tgl@sss.pgh.pa.us>
2020-03-05 [84eca14bc] Remove ancient hacks to ignore certain opclass names in
-->