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Hiroshi Inoue
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$Header: /cvsroot/pgsql/doc/src/sgml/ref/reindex.sgml,v 1.1 2000/03/31 08:16:33 inoue Exp $
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Postgres documentation
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-->
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<refentry id="SQL-REINDEX">
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<refmeta>
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<refentrytitle id="SQL-REINDEX-TITLE">
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REINDEX
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</refentrytitle>
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<refmiscinfo>SQL - Language Statements</refmiscinfo>
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</refmeta>
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<refnamediv>
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<refname>
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REINDEX
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</refname>
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<refpurpose>
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Recover corrupted system indexes under standalone Postgres
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</refpurpose>
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</refnamediv>
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<refsynopsisdiv>
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<refsynopsisdivinfo>
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<date>2000-03-30</date>
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</refsynopsisdivinfo>
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<synopsis>
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REINDEX { TABLE | DATABASE | INDEX } <replaceable class="PARAMETER">name</replaceable> [ FORCE ]
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</synopsis>
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<refsect2 id="R2-SQL-REINDEX-1">
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<refsect2info>
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<date>2000-03-30</date>
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</refsect2info>
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<title>
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Inputs
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</title>
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<para>
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<variablelist>
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<varlistentry>
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<term>TABLE</term>
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<listitem>
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<para>
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Recreate all indexes of a specfied table.
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term>DATABASE</term>
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<listitem>
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<para>
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Recreate all system indexes of a specfied database.
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term>INDEX</term>
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<listitem>
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<para>
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Recreate a specfied index.
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><replaceable class="PARAMETER">name</replaceable></term>
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<listitem>
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<para>
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The name of the specific table/database/index to be be reindexed.
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term>FORCE</term>
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<listitem>
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<para>
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Recreate indexes forcedly. Without this keyword REINDEX does
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nothing unless target indexes are invalidated.
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</para>
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</listitem>
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</varlistentry>
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</variablelist>
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</para>
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</refsect2>
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<refsect2 id="R2-SQL-REINDEX-2">
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<refsect2info>
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<date>2000-03-30</date>
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</refsect2info>
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<title>
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Outputs
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</title>
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<para>
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<variablelist>
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<varlistentry>
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<term><computeroutput>
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REINDEX
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</computeroutput></term>
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<listitem>
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<para>
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Message returned if the table is successfully reindexed.
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</para>
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</listitem>
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</varlistentry>
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</variablelist>
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</para>
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</refsect2>
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</refsynopsisdiv>
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<refsect1 id="R1-SQL-REINDEX-1">
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<refsect1info>
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<date>2000-03-30</date>
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</refsect1info>
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<title>
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Description
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</title>
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<para>
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<command>REINDEX</command> is used to recover corrupted system indexes.
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In order to run REINDEX command,Postmaster must be shutdown and
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standalone Postgres should be started instead with options -O and
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-P(an option to ignore system indexes). Note that we couldn't rely
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on system indexes for the recovery of system indexes.
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</para>
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</refsect1>
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<refsect1 id="R1-SQL-REINDEX-2">
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<title>
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Usage
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</title>
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<para>
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Recreate the table <literal>mytable</literal>:
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<programlisting>
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REINDEX TABLE mytable;
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</programlisting>
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</para>
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<para>
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Some more examples:
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<programlisting>
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REINDEX DATABASE my_database FORCE;
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REINDEX INDEX my_index;
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</programlisting>
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</para>
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</refsect1>
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<refsect1 id="R1-SQL-REINDEX-3">
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<title>
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Compatibility
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</title>
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<refsect2 id="R2-SQL-REINDEX-4">
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<refsect2info>
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<date>2000-03-30</date>
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</refsect2info>
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<title>
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SQL92
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</title>
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<para>
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There is no <command>REINDEX</command> in <acronym>SQL92</acronym>.
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</para>
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</refsect2>
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</refsect1>
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</refentry>
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<!-- Keep this comment at the end of the file
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Local variables:
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mode: sgml
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sgml-omittag:t
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sgml-shorttag:t
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sgml-minimize-attributes:nil
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sgml-always-quote-attributes:t
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sgml-indent-step:1
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sgml-indent-data:t
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sgml-parent-document:nil
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sgml-default-dtd-file:"../reference.ced"
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sgml-exposed-tags:nil
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sgml-local-catalogs:"/usr/lib/sgml/catalog"
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sgml-local-ecat-files:nil
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End:
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-->
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