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<!--
$Header: /cvsroot/pgsql/doc/src/sgml/ref/drop_domain.sgml,v 1.8.2.1 2002/11/21 23:31:58 petere Exp $
PostgreSQL documentation
-->
<refentry id="SQL-DROPDOMAIN">
<refmeta>
<refentrytitle id="SQL-DROPDOMAIN-TITLE">
DROP DOMAIN
</refentrytitle>
<refmiscinfo>SQL - Language Statements</refmiscinfo>
</refmeta>
<refnamediv>
<refname>
DROP DOMAIN
</refname>
<refpurpose>
remove a user-defined domain
</refpurpose>
</refnamediv>
<refsynopsisdiv>
<refsynopsisdivinfo>
<date>1999-07-20</date>
</refsynopsisdivinfo>
<synopsis>
DROP DOMAIN <replaceable class="PARAMETER">domainname</replaceable> [, ...] [ CASCADE | RESTRICT ]
</synopsis>
<refsect2 id="R2-SQL-DROPDOMAIN-1">
<refsect2info>
<date>2002-02-24</date>
</refsect2info>
<title>
Inputs
</title>
<para>
<variablelist>
<varlistentry>
<term><replaceable class="PARAMETER">domainname</replaceable></term>
<listitem>
<para>
The name (optionally schema-qualified) of an existing domain.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><literal>CASCADE</></term>
<listitem>
<para>
Automatically drop objects that depend on the domain
(such as table columns).
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><literal>RESTRICT</></term>
<listitem>
<para>
Refuse to drop the domain if there are any dependent objects.
This is the default.
</para>
</listitem>
</varlistentry>
</variablelist>
</para>
</refsect2>
<refsect2 id="R2-SQL-DROPDOMAIN-2">
<refsect2info>
<date>2002-02-24</date>
</refsect2info>
<title>
Outputs
</title>
<para>
<variablelist>
<varlistentry>
<term><computeroutput>
DROP DOMAIN
</computeroutput></term>
<listitem>
<para>
The message returned if the command is successful.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><computeroutput>
ERROR: RemoveDomain: type '<replaceable class="parameter">domainname</replaceable>' does not exist
</computeroutput></term>
<listitem>
<para>
This message occurs if the specified domain (or type) is not found.
</para>
</listitem>
</varlistentry>
</variablelist>
</para>
</refsect2>
</refsynopsisdiv>
<refsect1 id="R1-SQL-DROPDOMAIN-1">
<refsect1info>
<date>2002-02-24</date>
</refsect1info>
<title>
Description
</title>
<para>
<command>DROP DOMAIN</command> will remove a user domain from the
system catalogs.
</para>
<para>
Only the owner of a domain can remove it.
</para>
</refsect1>
<refsect1 id="SQL-DROPDOMAIN-examples">
<title>Examples</title>
<para>
To remove the <type>box</type> domain:
<programlisting>
DROP DOMAIN box;
</programlisting>
</para>
</refsect1>
<refsect1 id="SQL-DROPDOMAIN-compatibility">
<title>Compatibility</title>
<refsect2 id="R2-SQL-DROPDOMAIN-sql92">
<title>
SQL92
</title>
<para></para>
</refsect2>
</refsect1>
<refsect1 id="SQL-DROPDOMAIN-see-also">
<title>See Also</title>
<simplelist type="inline">
<member><xref linkend="sql-createdomain" endterm="sql-createdomain-title"></member>
</simplelist>
</refsect1>
</refentry>
<!-- Keep this comment at the end of the file
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sgml-shorttag:t
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sgml-always-quote-attributes:t
sgml-indent-step:1
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