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Document that wal_sync_method open_* methods use O_DIRECT, if available. 

Backpatch to 8.2.X.
This commit is contained in:
Bruce Momjian 2007-02-08 03:56:42 +00:00
parent 9e9e387ecf
commit d78f76896b
1 changed files with 2 additions and 1 deletions
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doc/src/sgml/config.sgml
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@ -1,4 +1,4 @@
<!-- $PostgreSQL: pgsql/doc/src/sgml/config.sgml,v 1.108 2007/02/01 00:28:16 momjian Exp $ --> <!-- $PostgreSQL: pgsql/doc/src/sgml/config.sgml,v 1.109 2007/02/08 03:56:42 momjian Exp $ -->
<chapter Id="runtime-config"> <chapter Id="runtime-config">
<title>Server Configuration</title> <title>Server Configuration</title>
@ -1385,6 +1385,7 @@ SET ENABLE_SEQSCAN TO OFF;
Not all of these choices are available on all platforms. Not all of these choices are available on all platforms.
The default is the first method in the above list that is supported The default is the first method in the above list that is supported
by the platform. by the platform.
The <literal>open_</>* options also use <literal>O_DIRECT</> if available.
This parameter can only be set in the <filename>postgresql.conf</> This parameter can only be set in the <filename>postgresql.conf</>
file or on the server command line. file or on the server command line.
</para> </para>