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<!--
$Header: /cvsroot/pgsql/doc/src/sgml/ref/deallocate.sgml,v 1.1 2002/08/27 04:55:07 tgl Exp $
PostgreSQL documentation
-->
<refentry id="SQL-DEALLOCATE">
<refmeta>
<refentrytitle id="sql-deallocate-title">DEALLOCATE</refentrytitle>
<refmiscinfo>SQL - Language Statements</refmiscinfo>
</refmeta>
<refnamediv>
<refname>
DEALLOCATE
</refname>
<refpurpose>
remove a prepared query
</refpurpose>
</refnamediv>
<refsynopsisdiv>
<refsynopsisdivinfo>
<date>2002-08-12</date>
</refsynopsisdivinfo>
<synopsis>
DEALLOCATE [ PREPARE ] <replaceable class="PARAMETER">plan_name</replaceable>
</synopsis>
<refsect2 id="R2-SQL-DEALLOCATE-1">
<refsect2info>
<date>2002-08-12</date>
</refsect2info>
<title>
Inputs
</title>
<para>
<variablelist>
<varlistentry>
<term>PREPARE</term>
<listitem>
<para>
This keyword is ignored.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><replaceable class="PARAMETER">plan_name</replaceable></term>
<listitem>
<para>
The name of the prepared query to remove.
</para>
</listitem>
</varlistentry>
</variablelist>
</para>
</refsect2>
<refsect2 id="R2-SQL-DEALLOCATE-2">
<refsect2info>
<date>2002-08-12</date>
</refsect2info>
<title>
Outputs
</title>
<para>
<variablelist>
<varlistentry>
<term><computeroutput>
<returnvalue>DEALLOCATE</returnvalue>
</computeroutput></term>
<listitem>
<para>
The prepared query was removed successfully.
</para>
</listitem>
</varlistentry>
</variablelist>
</para>
</refsect2>
</refsynopsisdiv>
<refsect1 id="R1-SQL-DEALLOCATE-1">
<refsect1info>
<date>2002-08-12</date>
</refsect1info>
<title>
Description
</title>
<para>
<command>DEALLOCATE</command> is used to remove a previously
prepared query. If you do not explicitly
<command>DEALLOCATE</command> a prepared query, it is removed when
the session ends.
</para>
<para>
For more information on prepared queries, see <xref
linkend="sql-prepare" endterm="sql-prepare-title">.
</para>
</refsect1>
<refsect1 id="R1-SQL-DEALLOCATE-2">
<title>
Compatibility
</title>
<refsect2 id="R2-SQL-DEALLOCATE-3">
<refsect2info>
<date>2002-08-12</date>
</refsect2info>
<title>
SQL92
</title>
<para>
SQL92 includes a <command>DEALLOCATE</command> statement, but it is
only for use in embedded SQL clients.
</para>
</refsect2>
</refsect1>
</refentry>
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