2002-03-19 03:18:25 +01:00
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2002-04-23 04:07:16 +02:00
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$Header: /cvsroot/pgsql/doc/src/sgml/ref/drop_domain.sgml,v 1.5 2002/04/23 02:07:16 tgl Exp $
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2002-03-19 03:18:25 +01:00
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PostgreSQL documentation
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<refentry id="SQL-DROPDOMAIN">
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<refmeta>
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<refentrytitle id="SQL-DROPDOMAIN-TITLE">
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DROP DOMAIN
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</refentrytitle>
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<refmiscinfo>SQL - Language Statements</refmiscinfo>
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</refmeta>
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<refnamediv>
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<refname>
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DROP DOMAIN
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</refname>
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<refpurpose>
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remove a user-defined domain
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</refpurpose>
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</refnamediv>
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<refsynopsisdiv>
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<refsynopsisdivinfo>
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<date>1999-07-20</date>
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</refsynopsisdivinfo>
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<synopsis>
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DROP DOMAIN <replaceable class="PARAMETER">domainname</replaceable> [, ...] [ CASCADE | RESTRICT ]
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</synopsis>
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<refsect2 id="R2-SQL-DROPDOMAIN-1">
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<refsect2info>
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<date>2002-02-24</date>
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</refsect2info>
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<title>
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Inputs
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</title>
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<para>
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<variablelist>
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<varlistentry>
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<term><replaceable class="PARAMETER">domainname</replaceable></term>
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<listitem>
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<para>
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The name (optionally schema-qualified) of an existing domain.
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</para>
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</listitem>
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</varlistentry>
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2002-03-20 20:45:13 +01:00
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<varlistentry>
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<term><literal>CASCADE</></term>
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<listitem>
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<para>
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Automatically drop objects that depend on the domain. This
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behavior is not currently supported.
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><literal>RESTRICT</></term>
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<listitem>
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<para>
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Do not drop dependent objects. This is the default.
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</para>
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</listitem>
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</varlistentry>
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</variablelist>
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</para>
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</refsect2>
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<refsect2 id="R2-SQL-DROPDOMAIN-2">
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<refsect2info>
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<date>2002-02-24</date>
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</refsect2info>
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<title>
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Outputs
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</title>
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<para>
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<variablelist>
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<varlistentry>
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<term><computeroutput>
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DROP
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</computeroutput></term>
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<listitem>
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<para>
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The message returned if the command is successful.
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><computeroutput>
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ERROR: RemoveDomain: type '<replaceable class="parameter">domainname</replaceable>' does not exist
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</computeroutput></term>
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<listitem>
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<para>
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This message occurs if the specified domain (or type) is not found.
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</para>
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</listitem>
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</varlistentry>
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</variablelist>
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</para>
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</refsect2>
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</refsynopsisdiv>
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<refsect1 id="R1-SQL-DROPDOMAIN-1">
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<refsect1info>
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<date>2002-02-24</date>
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</refsect1info>
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<title>
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Description
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</title>
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<para>
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<command>DROP DOMAIN</command> will remove a user domain from the
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system catalogs.
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</para>
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<para>
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Only the owner of a domain can remove it.
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</para>
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</refsect1>
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<refsect1 id="SQL-DROPDOMAIN-notes">
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<title>Notes</title>
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<itemizedlist>
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<listitem>
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<para>
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It is the user's responsibility to remove any operators,
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functions, aggregates, access methods, and tables that
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use a deleted domain.
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</para>
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</listitem>
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</itemizedlist>
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</refsect1>
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<refsect1 id="SQL-DROPDOMAIN-examples">
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<title>Examples</title>
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<para>
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To remove the <type>box</type> domain:
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<programlisting>
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DROP DOMAIN box;
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</programlisting>
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</para>
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</refsect1>
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<refsect1 id="SQL-DROPDOMAIN-compatibility">
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<title>Compatibility</title>
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<para>
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A <command>DROP DOMAIN</command> statement exists in SQL99. As with
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most other <quote>drop</quote> commands, <command>DROP
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DOMAIN</command> in SQL99 requires a <quote>drop behavior</quote>
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clause to select between dropping all dependent objects or refusing
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to drop if dependent objects exist:
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<synopsis>
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DROP DOMAIN <replaceable>name</replaceable> { CASCADE | RESTRICT }
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</synopsis>
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2002-03-20 20:45:13 +01:00
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<productname>PostgreSQL</productname> accepts only the RESTRICT
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option, and currently does not check for existence of dependent objects.
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</para>
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</refsect1>
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<refsect1 id="SQL-DROPDOMAIN-see-also">
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<title>See Also</title>
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<simplelist type="inline">
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<member><xref linkend="sql-createdomain"></member>
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</simplelist>
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</refsect1>
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</refentry>
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<!-- Keep this comment at the end of the file
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Local variables:
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mode: sgml
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sgml-omittag:nil
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sgml-shorttag:t
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sgml-minimize-attributes:nil
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sgml-always-quote-attributes:t
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sgml-indent-step:1
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sgml-indent-data:t
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sgml-parent-document:nil
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sgml-default-dtd-file:"../reference.ced"
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sgml-exposed-tags:nil
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sgml-local-catalogs:"/usr/lib/sgml/catalog"
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sgml-local-ecat-files:nil
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End:
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-->
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