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118 lines
2.9 KiB
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118 lines
2.9 KiB
Plaintext
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$PostgreSQL: pgsql/doc/src/sgml/ref/alter_aggregate.sgml,v 1.4 2003/11/29 19:51:38 pgsql Exp $
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PostgreSQL documentation
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-->
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<refentry id="SQL-ALTERAGGREGATE">
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<refmeta>
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<refentrytitle id="SQL-ALTERAGGREGATE-TITLE">ALTER AGGREGATE</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>ALTER AGGREGATE</refname>
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<refpurpose>change the definition of an aggregate function</refpurpose>
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</refnamediv>
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<indexterm zone="sql-alteraggregate">
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<primary>ALTER AGGREGATE</primary>
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</indexterm>
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<refsynopsisdiv>
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<synopsis>
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ALTER AGGREGATE <replaceable>name</replaceable> ( <replaceable>type</replaceable> ) RENAME TO <replaceable>newname</replaceable>
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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>ALTER AGGREGATE</command> changes the definition of an
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aggregate function. The only currently available functionality is to
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rename the aggregate function.
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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 an existing aggregate function.
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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><replaceable class="parameter">type</replaceable></term>
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<listitem>
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<para>
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The argument data type of the aggregate function, or
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<literal>*</literal> if the function accepts any data type.
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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><replaceable class="parameter">newname</replaceable></term>
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<listitem>
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<para>
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The new name of the aggregate function.
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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>
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<title>Examples</title>
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<para>
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To rename the aggregate function <literal>myavg</literal> for type
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<type>integer</type> to <literal>my_average</literal>:
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<programlisting>
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ALTER AGGREGATE myavg(integer) RENAME TO my_average;
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</programlisting>
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</para>
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</refsect1>
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<refsect1>
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<title>Compatibility</title>
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<para>
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There is no <command>ALTER AGGREGATE</command> statement in the SQL
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standard.
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</para>
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</refsect1>
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<refsect1>
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<title>See Also</title>
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<simplelist type="inline">
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<member><xref linkend="sql-createaggregate" endterm="sql-createaggregate-title"></member>
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<member><xref linkend="sql-dropaggregate" endterm="sql-dropaggregate-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-shorttag: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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