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<!--
$Header: /cvsroot/pgsql/doc/src/sgml/ref/reset.sgml,v 1.17 2002/10/13 16:55:05 tgl Exp $
PostgreSQL documentation
-->
<refentry id="SQL-RESET">
<refmeta>
<refentrytitle id="SQL-RESET-TITLE">RESET</refentrytitle>
<refmiscinfo>SQL - Language Statements</refmiscinfo>
</refmeta>
<refnamediv>
<refname>RESET</refname>
<refpurpose>restore the value of a run-time parameter to a default value</refpurpose>
</refnamediv>
<refsynopsisdiv>
<synopsis>
RESET <replaceable class="PARAMETER">variable</replaceable>
</synopsis>
<synopsis>
RESET ALL
</synopsis>
<refsect2 id="R2-SQL-RESET-1">
<title>Inputs</title>
<para>
<variablelist>
<varlistentry>
<term><replaceable class="PARAMETER">variable</replaceable></term>
<listitem>
<para>
The name of a run-time parameter. See <xref
linkend="sql-set" endterm="sql-set-title"> for a list.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term>ALL</term>
<listitem>
<para>
Resets all settable run-time parameters to default values.
</para>
</listitem>
</varlistentry>
</variablelist>
</para>
</refsect2>
</refsynopsisdiv>
<refsect1>
<title>Description</title>
<para>
<command>RESET</command> restores run-time parameters to their
default values. Refer to
<xref linkend="sql-set" endterm="sql-set-title">
for details. <command>RESET</command> is an alternate spelling for
<synopsis>
SET <replaceable class="parameter">variable</replaceable> TO DEFAULT
</synopsis>
The default value is defined as the value that the variable would
have had, had no <command>SET</> ever been issued for it in the
current session. The actual source of this value might be a
compiled-in default, the postmaster's configuration file or command-line
switches, or per-database or per-user default settings. See the
<citetitle>Administrator's Guide</citetitle> for details.
</para>
<para>
See the <command>SET</> manual page for details on the transaction
behavior of <command>RESET</>.
</para>
</refsect1>
<refsect1>
<title>Diagnostics</title>
<para>
See under the <xref linkend="sql-set"
endterm="sql-set-title"> command.
</para>
</refsect1>
<refsect1>
<title>Examples</title>
<para>
Set <varname>DateStyle</> to its default value:
<screen>
RESET DateStyle;
</screen>
</para>
<para>
Set <varname>geqo</> to its default value:
<screen>
RESET GEQO;
</screen>
</para>
</refsect1>
<refsect1>
<title>Compatibility</title>
<para>
<command>RESET</command> is a <productname>PostgreSQL</productname> extension.
</para>
</refsect1>
</refentry>
<!-- Keep this comment at the end of the file
Local variables:
mode: sgml
sgml-omittag:nil
sgml-shorttag:t
sgml-minimize-attributes:nil
sgml-always-quote-attributes:t
sgml-indent-step:1
sgml-indent-data:t
sgml-parent-document:nil
sgml-default-dtd-file:"../reference.ced"
sgml-exposed-tags:nil
sgml-local-catalogs:"/usr/lib/sgml/catalog"
sgml-local-ecat-files:nil
End:
-->
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