mirror of
https://git.postgresql.org/git/postgresql.git
synced 2024-09-30 07:01:17 +02:00
bb4eefe7bf
DocBook XML is superficially compatible with DocBook SGML but has a slightly stricter DTD that we have been violating in a few cases. Although XSLT doesn't care whether the document is valid, the style sheets don't necessarily process invalid documents correctly, so we need to work toward fixing this. This first commit moves the indexterms in refentry elements to an allowed position. It has no impact on the output.
114 lines
2.9 KiB
Plaintext
114 lines
2.9 KiB
Plaintext
<!--
|
|
doc/src/sgml/ref/reset.sgml
|
|
PostgreSQL documentation
|
|
-->
|
|
|
|
<refentry id="SQL-RESET">
|
|
<indexterm zone="sql-reset">
|
|
<primary>RESET</primary>
|
|
</indexterm>
|
|
|
|
<refmeta>
|
|
<refentrytitle>RESET</refentrytitle>
|
|
<manvolnum>7</manvolnum>
|
|
<refmiscinfo>SQL - Language Statements</refmiscinfo>
|
|
</refmeta>
|
|
|
|
<refnamediv>
|
|
<refname>RESET</refname>
|
|
<refpurpose>restore the value of a run-time parameter to the default value</refpurpose>
|
|
</refnamediv>
|
|
|
|
<refsynopsisdiv>
|
|
<synopsis>
|
|
RESET <replaceable class="PARAMETER">configuration_parameter</replaceable>
|
|
RESET ALL
|
|
</synopsis>
|
|
</refsynopsisdiv>
|
|
|
|
<refsect1>
|
|
<title>Description</title>
|
|
|
|
<para>
|
|
<command>RESET</command> restores run-time parameters to their
|
|
default values. <command>RESET</command> is an alternative
|
|
spelling for
|
|
<synopsis>
|
|
SET <replaceable class="parameter">configuration_parameter</replaceable> TO DEFAULT
|
|
</synopsis>
|
|
Refer to <xref linkend="sql-set"> for
|
|
details.
|
|
</para>
|
|
|
|
<para>
|
|
The default value is defined as the value that the parameter would
|
|
have had, if no <command>SET</> had ever been issued for it in the
|
|
current session. The actual source of this value might be a
|
|
compiled-in default, the configuration file, command-line options,
|
|
or per-database or per-user default settings. This is subtly different
|
|
from defining it as <quote>the value that the parameter had at session
|
|
start</>, because if the value came from the configuration file, it
|
|
will be reset to whatever is specified by the configuration file now.
|
|
See <xref linkend="runtime-config"> for details.
|
|
</para>
|
|
|
|
<para>
|
|
The transactional behavior of <command>RESET</> is the same as
|
|
<command>SET</>: its effects will be undone by transaction rollback.
|
|
</para>
|
|
</refsect1>
|
|
|
|
<refsect1>
|
|
<title>Parameters</title>
|
|
|
|
<variablelist>
|
|
<varlistentry>
|
|
<term><replaceable class="PARAMETER">configuration_parameter</replaceable></term>
|
|
<listitem>
|
|
<para>
|
|
Name of a settable run-time parameter. Available parameters are
|
|
documented in <xref linkend="runtime-config"> and on the
|
|
<xref linkend="sql-set"> reference page.
|
|
</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry>
|
|
<term><literal>ALL</literal></term>
|
|
<listitem>
|
|
<para>
|
|
Resets all settable run-time parameters to default values.
|
|
</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
</variablelist>
|
|
</refsect1>
|
|
|
|
<refsect1>
|
|
<title>Examples</title>
|
|
|
|
<para>
|
|
Set the <varname>timezone</> configuration variable to its default value:
|
|
<screen>
|
|
RESET timezone;
|
|
</screen></para>
|
|
</refsect1>
|
|
|
|
<refsect1>
|
|
<title>Compatibility</title>
|
|
|
|
<para>
|
|
<command>RESET</command> is a <productname>PostgreSQL</productname> extension.
|
|
</para>
|
|
</refsect1>
|
|
|
|
<refsect1>
|
|
<title>See Also</title>
|
|
|
|
<simplelist type="inline">
|
|
<member><xref linkend="SQL-SET"></member>
|
|
<member><xref linkend="SQL-SHOW"></member>
|
|
</simplelist>
|
|
</refsect1>
|
|
</refentry>
|