Correct documentation error: in 8.1 and 8.2, %p in archive and restore
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.
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<!-- $PostgreSQL: pgsql/doc/src/sgml/backup.sgml,v 2.92 2006/10/30 00:08:02 neilc Exp $ -->
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<!-- $PostgreSQL: pgsql/doc/src/sgml/backup.sgml,v 2.93 2006/11/04 18:20:27 tgl Exp $ -->
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<chapter id="backup">
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<title>Backup and Restore</title>
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@ -518,8 +518,10 @@ tar -cf backup.tar /usr/local/pgsql/data
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linkend="guc-archive-command"> configuration parameter, which in practice
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will always be placed in the <filename>postgresql.conf</filename> file.
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In this string,
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any <literal>%p</> is replaced by the absolute path of the file to
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any <literal>%p</> is replaced by the path name of the file to
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archive, while any <literal>%f</> is replaced by the file name only.
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(The path name is relative to the working directory of the server,
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i.e., the cluster's data directory.)
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Write <literal>%%</> if you need to embed an actual <literal>%</>
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character in the command. The simplest useful command is something
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like
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@ -915,7 +917,9 @@ SELECT pg_stop_backup();
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WAL file segments. Like the <varname>archive_command</>, this is
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a shell command string. It may contain <literal>%f</>, which is
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replaced by the name of the desired log file, and <literal>%p</>,
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which is replaced by the absolute path to copy the log file to.
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which is replaced by the path name to copy the log file to.
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(The path name is relative to the working directory of the server,
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i.e., the cluster's data directory.)
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Write <literal>%%</> if you need to embed an actual <literal>%</>
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character in the command. The simplest useful command is
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something like
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@ -1003,8 +1007,10 @@ restore_command = 'cp /mnt/server/archivedir/%f %p'
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the WAL file series. This parameter is required.
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Any <literal>%f</> in the string is
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replaced by the name of the file to retrieve from the archive,
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and any <literal>%p</> is replaced by the absolute path to copy
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and any <literal>%p</> is replaced by the path name to copy
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it to on the server.
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(The path name is relative to the working directory of the server,
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i.e., the cluster's data directory.)
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Write <literal>%%</> to embed an actual <literal>%</> character
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in the command.
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</para>
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@ -1,4 +1,4 @@
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<!-- $PostgreSQL: pgsql/doc/src/sgml/config.sgml,v 1.92 2006/10/23 18:10:30 petere Exp $ -->
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<!-- $PostgreSQL: pgsql/doc/src/sgml/config.sgml,v 1.93 2006/11/04 18:20:27 tgl Exp $ -->
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<chapter Id="runtime-config">
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<title>Server Configuration</title>
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@ -1573,9 +1573,11 @@ SET ENABLE_SEQSCAN TO OFF;
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The shell command to execute to archive a completed segment of
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the WAL file series. If this is an empty string (the default),
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WAL archiving is disabled. Any <literal>%p</> in the string is
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replaced by the absolute path of the file to archive, and any
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<literal>%f</> is replaced by the file name only. Use
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<literal>%%</> to embed an actual <literal>%</> character in the
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replaced by the path name of the file to archive, and any
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<literal>%f</> is replaced by the file name only.
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(The path name is relative to the working directory of the server,
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i.e., the cluster's data directory.)
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Use <literal>%%</> to embed an actual <literal>%</> character in the
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command. For more information see <xref
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linkend="backup-archiving-wal">.
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This parameter can only be set in the <filename>postgresql.conf</>
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