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<!--
doc/src/sgml/ref/drop_language.sgml
PostgreSQL documentation
-->
<refentry id="sql-droplanguage">
<indexterm zone="sql-droplanguage">
<primary>DROP LANGUAGE</primary>
</indexterm>
<refmeta>
<refentrytitle>DROP LANGUAGE</refentrytitle>
<manvolnum>7</manvolnum>
<refmiscinfo>SQL - Language Statements</refmiscinfo>
</refmeta>
<refnamediv>
<refname>DROP LANGUAGE</refname>
<refpurpose>remove a procedural language</refpurpose>
</refnamediv>
<refsynopsisdiv>
<synopsis>
DROP [ PROCEDURAL ] LANGUAGE [ IF EXISTS ] <replaceable class="parameter">name</replaceable> [ CASCADE | RESTRICT ]
</synopsis>
</refsynopsisdiv>
<refsect1>
<title>Description</title>
<para>
<command>DROP LANGUAGE</command> removes the definition of a
previously registered procedural language. You must be a superuser
or the owner of the language to use <command>DROP LANGUAGE</command>.
</para>
<note>
<para>
As of <productname>PostgreSQL</productname> 9.1, most procedural
languages have been made into <quote>extensions</quote>, and should
therefore be removed with <link linkend="sql-dropextension"><command>DROP EXTENSION</command></link>
not <command>DROP LANGUAGE</command>.
</para>
</note>
</refsect1>
<refsect1>
<title>Parameters</title>
<variablelist>
<varlistentry>
<term><literal>IF EXISTS</literal></term>
<listitem>
<para>
Do not throw an error if the language 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 procedural language.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><literal>CASCADE</literal></term>
<listitem>
<para>
Automatically drop objects that depend on the language (such as
functions in the language),
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 language if any objects depend on it. This
is the default.
</para>
</listitem>
</varlistentry>
</variablelist>
</refsect1>
<refsect1>
<title>Examples</title>
<para>
This command removes the procedural language
<literal>plsample</literal>:
<programlisting>
DROP LANGUAGE plsample;
</programlisting></para>
</refsect1>
<refsect1>
<title>Compatibility</title>
<para>
There is no <command>DROP LANGUAGE</command> statement in the SQL
standard.
</para>
</refsect1>
<refsect1>
<title>See Also</title>
<simplelist type="inline">
<member><xref linkend="sql-alterlanguage"/></member>
<member><xref linkend="sql-createlanguage"/></member>
</simplelist>
</refsect1>
</refentry>
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