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+<!--
+$Header: /cvsroot/pgsql/doc/src/sgml/ref/drop_domain.sgml,v 1.3 2002/03/19 02:18:13 momjian 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> [, ...]
+ </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 of an existing domain.
+ </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
+ </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-notes">
+ <title>Notes</title>
+
+ <itemizedlist>
+ <listitem>
+ <para>
+ It is the user's responsibility to remove any operators,
+ functions, aggregates, access methods, and tables that
+ use a deleted domain.
+ </para>
+ </listitem>
+ </itemizedlist>
+ </refsect1>
+
+ <refsect1 id="SQL-DROPDOMAIN-examples">
+ <title>Examples</title>
+ <para>
+ To remove the <type>box</type> domain:
+
+<programlisting>
+DROP DOMAIN box RESTRICT;
+</programlisting>
+ </para>
+ </refsect1>
+
+ <refsect1 id="SQL-DROPDOMAIN-compatibility">
+ <title>Compatibility</title>
+
+ <para>
+ A <command>DROP DOMAIN</command> statement exists in SQL99. As with
+ most other <quote>drop</quote> commands, <command>DROP
+ DOMAIN</command> in SQL99 requires a <quote>drop behavior</quote>
+ clause to select between dropping all dependent objects or refusing
+ to drop if dependent objects exist:
+<synopsis>
+DROP DOMAIN <replaceable>name</replaceable> { CASCADE | RESTRICT }
+</synopsis>
+ <productname>PostgreSQL</productname> enforces the existance of
+ RESTRICT or CASCADE but ignores their enforcement against the
+ system tables.
+ </para>
+ </refsect1>
+
+ <refsect1 id="SQL-DROPDOMAIN-see-also">
+ <title>See Also</title>
+
+ <simplelist type="inline">
+ <member><xref linkend="sql-createdomain"></member>
+ </simplelist>
+ </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:
+-->