mirror of
https://github.com/postgres/postgres.git
synced 2025-12-19 17:02:53 +03:00
129 lines
3.0 KiB
Plaintext
129 lines
3.0 KiB
Plaintext
<!--
|
|
$PostgreSQL: pgsql/doc/src/sgml/ref/drop_aggregate.sgml,v 1.27 2003/11/29 19:51:38 pgsql Exp $
|
|
PostgreSQL documentation
|
|
-->
|
|
|
|
<refentry id="SQL-DROPAGGREGATE">
|
|
<refmeta>
|
|
<refentrytitle id="SQL-DROPAGGREGATE-TITLE">DROP AGGREGATE</refentrytitle>
|
|
<refmiscinfo>SQL - Language Statements</refmiscinfo>
|
|
</refmeta>
|
|
|
|
<refnamediv>
|
|
<refname>DROP AGGREGATE</refname>
|
|
<refpurpose>remove an aggregate function</refpurpose>
|
|
</refnamediv>
|
|
|
|
<indexterm zone="sql-dropaggregate">
|
|
<primary>DROP AGGREGATE</primary>
|
|
</indexterm>
|
|
|
|
<refsynopsisdiv>
|
|
<synopsis>
|
|
DROP AGGREGATE <replaceable class="PARAMETER">name</replaceable> ( <replaceable class="PARAMETER">type</replaceable> ) [ CASCADE | RESTRICT ]
|
|
</synopsis>
|
|
</refsynopsisdiv>
|
|
|
|
<refsect1>
|
|
<title>Description</title>
|
|
|
|
<para>
|
|
<command>DROP AGGREGATE</command> will delete an existing
|
|
aggregate function. To execute this command the current
|
|
user must be the owner of the aggregate function.
|
|
</para>
|
|
</refsect1>
|
|
|
|
<refsect1>
|
|
<title>Parameters</title>
|
|
|
|
<variablelist>
|
|
<varlistentry>
|
|
<term><replaceable class="parameter">name</replaceable></term>
|
|
<listitem>
|
|
<para>
|
|
The name (optionally schema-qualified) of an existing aggregate function.
|
|
</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry>
|
|
<term><replaceable class="parameter">type</replaceable></term>
|
|
<listitem>
|
|
<para>
|
|
The argument data type of the aggregate function, or
|
|
<literal>*</literal> if the function accepts any data type.
|
|
</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry>
|
|
<term><literal>CASCADE</literal></term>
|
|
<listitem>
|
|
<para>
|
|
Automatically drop objects that depend on the aggregate function.
|
|
</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry>
|
|
<term><literal>RESTRICT</literal></term>
|
|
<listitem>
|
|
<para>
|
|
Refuse to drop the aggregate function if any objects depend on
|
|
it. This is the default.
|
|
</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
</variablelist>
|
|
</refsect1>
|
|
|
|
<refsect1>
|
|
<title>Examples</title>
|
|
|
|
<para>
|
|
To remove the aggregate function <literal>myavg</literal> for type
|
|
<type>integer</type>:
|
|
<programlisting>
|
|
DROP AGGREGATE myavg(integer);
|
|
</programlisting>
|
|
</para>
|
|
</refsect1>
|
|
|
|
<refsect1>
|
|
<title>Compatibility</title>
|
|
|
|
<para>
|
|
There is no <command>DROP AGGREGATE</command> statement in the SQL
|
|
standard.
|
|
</para>
|
|
</refsect1>
|
|
|
|
<refsect1>
|
|
<title>See Also</title>
|
|
|
|
<simplelist type="inline">
|
|
<member><xref linkend="sql-alteraggregate" endterm="sql-alteraggregate-title"></member>
|
|
<member><xref linkend="sql-createaggregate" endterm="sql-createaggregate-title"></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:
|
|
-->
|