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<!--
doc/src/sgml/ref/drop_access_method.sgml
PostgreSQL documentation
-->
<refentry id="sql-drop-access-method">
<indexterm zone="sql-drop-access-method">
<primary>DROP ACCESS METHOD</primary>
</indexterm>
<refmeta>
<refentrytitle>DROP ACCESS METHOD</refentrytitle>
<manvolnum>7</manvolnum>
<refmiscinfo>SQL - Language Statements</refmiscinfo>
</refmeta>
<refnamediv>
<refname>DROP ACCESS METHOD</refname>
<refpurpose>remove an access method</refpurpose>
</refnamediv>
<refsynopsisdiv>
<synopsis>
DROP ACCESS METHOD [ IF EXISTS ] <replaceable class="parameter">name</replaceable> [ CASCADE | RESTRICT ]
</synopsis>
</refsynopsisdiv>
<refsect1>
<title>Description</title>
<para>
<command>DROP ACCESS METHOD</command> removes an existing access method.
Only superusers can drop access methods.
</para>
</refsect1>
<refsect1>
<title>Parameters</title>
<variablelist>
<varlistentry>
<term><literal>IF EXISTS</literal></term>
<listitem>
<para>
Do not throw an error if the access method does not exist.
A notice is issued in this case.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><replaceable class="parameter">name</replaceable></term>
<listitem>
<para>
The name of an existing access method.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><literal>CASCADE</literal></term>
<listitem>
<para>
Automatically drop objects that depend on the access method
(such as operator classes, operator families, and indexes),
and in turn all objects that depend on those objects
(see <xref linkend="ddl-depend"/>).
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><literal>RESTRICT</literal></term>
<listitem>
<para>
Refuse to drop the access method if any objects depend on it.
This is the default.
</para>
</listitem>
</varlistentry>
</variablelist>
</refsect1>
<refsect1>
<title>Examples</title>
<para>
Drop the access method <literal>heptree</literal>:
<programlisting>
DROP ACCESS METHOD heptree;
</programlisting></para>
</refsect1>
<refsect1>
<title>Compatibility</title>
<para>
<command>DROP ACCESS METHOD</command> is a
<productname>PostgreSQL</productname> extension.
</para>
</refsect1>
<refsect1>
<title>See Also</title>
<simplelist type="inline">
<member><xref linkend="sql-create-access-method"/></member>
</simplelist>
</refsect1>
</refentry>
|
