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Correction that 2pc state files use CRC-32.

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Jeff Davis
This commit is contained in:
Simon Riggs 2013-03-19 08:51:35 +00:00
parent 2266db392c
commit 8c3b87ca10
1 changed files with 6 additions and 1 deletions
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7
doc/src/sgml/wal.sgml
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@ -200,13 +200,18 @@
<listitem> <listitem>
<para> <para>
Internal data structures such as pg_clog, pg_subtrans, pg_multixact, Internal data structures such as pg_clog, pg_subtrans, pg_multixact,
pg_serial, pg_notify, pg_stat, pg_snapshots, pg_twophase are not directly pg_serial, pg_notify, pg_stat, pg_snapshots are not directly
checksummed, nor are pages protected by full page writes. However, where checksummed, nor are pages protected by full page writes. However, where
such data structures are persistent, WAL records are written that allow such data structures are persistent, WAL records are written that allow
recent changes to be accurately rebuilt at crash recovery and those recent changes to be accurately rebuilt at crash recovery and those
WAL records are protected as discussed above. WAL records are protected as discussed above.
</para> </para>
</listitem> </listitem>
<listitem>
<para>
Individual state files in pg_twophase are protected by CRC-32.
</para>
</listitem>
<listitem> <listitem>
<para> <para>
Temporary data files used in larger SQL queries for sorts, Temporary data files used in larger SQL queries for sorts,