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Correct documentation error: in 8.1 and 8.2, %p in archive and restore

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command strings inserts relative not absolute path of file to process.
This is a side-effect of 2005-07-04 change that makes the server use
relative paths in general.  Noted by Bernd Helmle.
This commit is contained in:
Tom Lane 2006-11-04 18:20:40 +00:00
parent 6f48f84874
commit 23092b9928
2 changed files with 16 additions and 8 deletions
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14
doc/src/sgml/backup.sgml
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@ -1,5 +1,5 @@
<!--
$PostgreSQL: pgsql/doc/src/sgml/backup.sgml,v 2.75.2.1 2006/02/24 14:03:11 momjian Exp $
$PostgreSQL: pgsql/doc/src/sgml/backup.sgml,v 2.75.2.2 2006/11/04 18:20:40 tgl Exp $
-->
<chapter id="backup">
<title>Backup and Restore</title>
@ -501,8 +501,10 @@ tar -cf backup.tar /usr/local/pgsql/data
linkend="guc-archive-command"> configuration parameter, which in practice
will always be placed in the <filename>postgresql.conf</filename> file.
In this string,
any <literal>%p</> is replaced by the absolute path of the file to
any <literal>%p</> is replaced by the path name of the file to
archive, while any <literal>%f</> is replaced by the file name only.
(The path name is relative to the working directory of the server,
i.e., the cluster's data directory.)
Write <literal>%%</> if you need to embed an actual <literal>%</>
character in the command. The simplest useful command is something
like
@ -882,7 +884,9 @@ SELECT pg_stop_backup();
WAL file segments. Like the <varname>archive_command</>, this is
a shell command string. It may contain <literal>%f</>, which is
replaced by the name of the desired log file, and <literal>%p</>,
which is replaced by the absolute path to copy the log file to.
which is replaced by the path name to copy the log file to.
(The path name is relative to the working directory of the server,
i.e., the cluster's data directory.)
Write <literal>%%</> if you need to embed an actual <literal>%</>
character in the command. The simplest useful command is
something like
@ -956,8 +960,10 @@ restore_command = 'cp /mnt/server/archivedir/%f %p'
the WAL file series. This parameter is required.
Any <literal>%f</> in the string is
replaced by the name of the file to retrieve from the archive,
and any <literal>%p</> is replaced by the absolute path to copy
and any <literal>%p</> is replaced by the path name to copy
it to on the server.
(The path name is relative to the working directory of the server,
i.e., the cluster's data directory.)
Write <literal>%%</> to embed an actual <literal>%</> character
in the command.
</para>

10
doc/src/sgml/config.sgml
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@ -1,5 +1,5 @@
<!--
$PostgreSQL: pgsql/doc/src/sgml/config.sgml,v 1.36.2.6 2006/05/21 20:11:02 tgl Exp $
$PostgreSQL: pgsql/doc/src/sgml/config.sgml,v 1.36.2.7 2006/11/04 18:20:40 tgl Exp $
-->
<chapter Id="runtime-config">
<title>Server Configuration</title>
@ -1496,9 +1496,11 @@ SET ENABLE_SEQSCAN TO OFF;
The shell command to execute to archive a completed segment of
the WAL file series. If this is an empty string (the default),
WAL archiving is disabled. Any <literal>%p</> in the string is
replaced by the absolute path of the file to archive, and any
<literal>%f</> is replaced by the file name only. Use
<literal>%%</> to embed an actual <literal>%</> character in the
replaced by the path name of the file to archive, and any
<literal>%f</> is replaced by the file name only.
(The path name is relative to the working directory of the server,
i.e., the cluster's data directory.)
Use <literal>%%</> to embed an actual <literal>%</> character in the
command. For more information see <xref
linkend="backup-archiving-wal">. This option can only be set at
server start or in the <filename>postgresql.conf</filename>