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  • Committer: alvherre
  • Date: 2005-12-16 21:24:52 UTC
  • Revision ID: svn-v4:db760fc0-0f08-0410-9d63-cc6633f64896:trunk:1
Initial import of the REL8_0_3 sources from the Pgsql CVS repository.

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doc/src/sgml/ref/drop_type.sgml
 
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<!--
 
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$PostgreSQL: pgsql/doc/src/sgml/ref/drop_type.sgml,v 1.26 2004-06-25 21:55:50 tgl Exp $
 
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PostgreSQL documentation
 
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-->
 
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<refentry id="SQL-DROPTYPE">
 
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 <refmeta>
 
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  <refentrytitle id="SQL-DROPTYPE-TITLE">DROP TYPE</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>DROP TYPE</refname>
 
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  <refpurpose>remove a data type</refpurpose>
 
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 </refnamediv>
 
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 <indexterm zone="sql-droptype">
 
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  <primary>DROP TYPE</primary>
 
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 </indexterm>
 
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 <refsynopsisdiv>
 
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<synopsis>
 
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DROP TYPE <replaceable class="PARAMETER">name</replaceable> [, ...] [ CASCADE | RESTRICT ]
 
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</synopsis>
 
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 </refsynopsisdiv>
 
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 <refsect1>
 
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  <title>Description</title>
 
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  <para>
 
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   <command>DROP TYPE</command> will remove a user-defined data type.
 
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   Only the owner of a type can remove it.
 
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  </para>
 
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 </refsect1>
 
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 <refsect1>
 
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  <title>Parameters</title>
 
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  <variablelist>
 
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   <varlistentry>
 
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    <term><replaceable class="PARAMETER">name</replaceable></term>
 
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    <listitem>
 
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     <para>
 
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      The name (optionally schema-qualified) of the data type to remove.
 
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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>CASCADE</literal></term>
 
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    <listitem>
 
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     <para>
 
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      Automatically drop objects that depend on the type (such as
 
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      table columns, functions, operators).
 
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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</literal></term>
 
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    <listitem>
 
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     <para>
 
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      Refuse to drop the type if any objects depend on it.  This is
 
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      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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 </refsect1>
 
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 <refsect1 id="SQL-DROPTYPE-examples">
 
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  <title>Examples</title>
 
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  <para>
 
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   To remove the data type <type>box</type>:
 
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<programlisting>
 
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DROP TYPE box;
 
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</programlisting>
 
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  </para>
 
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 </refsect1>
 
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 <refsect1 id="SQL-DROPTYPE-compatibility">
 
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  <title>Compatibility</title>
 
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  <para>
 
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   This command is similar to the corresponding command in the SQL
 
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   standard, but note that the <command>CREATE TYPE</command> command
 
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   and the data type extension mechanisms in
 
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   <productname>PostgreSQL</productname> differ from the SQL standard.
 
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  </para>
 
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 </refsect1>
 
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 <refsect1 id="SQL-DROPTYPE-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-createtype" endterm="sql-createtype-title"></member>
 
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   <member><xref linkend="sql-altertype" endterm="sql-altertype-title"></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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-->