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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
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@ -209,6 +209,28 @@ Author: Fujii Masao <fujii@postgresql.org>
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<listitem>
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<listitem>
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<!--
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<!--
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Author: Fujii Masao <fujii@postgresql.org>
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2020-07-20 [f5dff45962] Rename wal_keep_segments to wal_keep_size.
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-->
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<para>
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Rename configuration parameter <varname>wal_keep_segments</varname>
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to <xref linkend="guc-wal-keep-size"/> (Fujii Masao)
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</para>
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<para>
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This determines how much WAL to retain for the standby server,
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specified in megabytes rather than number of files. If you
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previously used <varname>wal_keep_segments</varname>,
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the following formula will give you an approximately equivalent setting:
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<programlisting>
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wal_keep_size = wal_keep_segments * wal_segment_size (typically 16MB)
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</programlisting>
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</para>
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</listitem>
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<listitem>
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<!--
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Author: Tom Lane <tgl@sss.pgh.pa.us>
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Author: Tom Lane <tgl@sss.pgh.pa.us>
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2020-03-05 [84eca14bc] Remove ancient hacks to ignore certain opclass names in
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2020-03-05 [84eca14bc] Remove ancient hacks to ignore certain opclass names in
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-->
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-->
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