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docs: Adapt wal_segment_size docs to fc49e24fa69.

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Before this change the docs weren't adapted to the fact that
wal_segment_size is now measured in bytes, rather than multiples of
wal_block_size.

Author: David Steele
Discussion: https://postgr.es/m/68ea97d6-2ed9-f339-e57d-ab3a33caf3b1@pgmasters.net
Backpatch: 11-, like fc49e24fa69 itself.
This commit is contained in:
Andres Freund 2018-11-09 19:24:05 -08:00
parent 8e02ee788f
commit 431b25c9b1
1 changed files with 2 additions and 5 deletions
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7
doc/src/sgml/config.sgml
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@ -8395,11 +8395,8 @@ dynamic_library_path = 'C:\tools\postgresql;H:\my_project\lib;$libdir'
</term>
<listitem>
<para>
Reports the number of blocks (pages) in a WAL segment file.
The total size of a WAL segment file in bytes is equal to
<varname>wal_segment_size</varname> multiplied by <varname>wal_block_size</varname>;
by default this is 16MB. See <xref linkend="wal-configuration"/> for
more information.
Reports the size of write ahead log segments. The default value is
16MB. See <xref linkend="wal-configuration"/> for more information.
</para>
</listitem>
</varlistentry>