1 files changed, 127 insertions, 0 deletions
diff --git a/doc/src/sgml/ref/alter_function.sgml b/doc/src/sgml/ref/alter_function.sgml
new file mode 100644
index 00000000000..621350980b8
--- /dev/null
+++ b/doc/src/sgml/ref/alter_function.sgml
@@ -0,0 +1,127 @@
+<!--
+$Header: /cvsroot/pgsql/doc/src/sgml/ref/alter_function.sgml,v 1.1 2003/06/27 14:45:25 petere Exp $
+PostgreSQL documentation
+-->
+
+<refentry id="SQL-ALTERFUNCTION">
+ <refmeta>
+  <refentrytitle id="SQL-ALTERFUNCTION-TITLE">ALTER FUNCTION</refentrytitle>
+  <refmiscinfo>SQL - Language Statements</refmiscinfo>
+ </refmeta>
+
+ <refnamediv>
+  <refname>ALTER FUNCTION</refname>
+  <refpurpose>change the definition of a function</refpurpose>
+ </refnamediv>  
+  
+ <refsynopsisdiv>
+<synopsis>
+ALTER FUNCTION <replaceable>name</replaceable> ( [ <replaceable class="parameter">type</replaceable> [, ...] ] ) RENAME TO <replaceable>newname</replaceable>
+</synopsis>
+ </refsynopsisdiv>
+  
+ <refsect1>
+  <title>Description</title>
+
+  <para>
+   <command>ALTER FUNCTION</command> changes the definition of a
+   function.  The only functionality is to rename the 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 function.
+     </para>
+    </listitem>
+   </varlistentry>
+
+   <varlistentry>
+    <term><replaceable class="parameter">type</replaceable></term>
+    <listitem>
+     <para>
+      The data type of an argument of the function.
+     </para>
+    </listitem>
+   </varlistentry>
+
+   <varlistentry>
+    <term><replaceable class="parameter">newname</replaceable></term>
+    <listitem>
+     <para>
+      The new name of the function.
+     </para>
+    </listitem>
+   </varlistentry>
+  </variablelist>
+ </refsect1>
+   
+ <refsect1>
+  <title>Diagnostics</title>
+
+  <variablelist>
+   <varlistentry>
+    <term><computeroutput>ALTER FUNCTION</computeroutput></term>
+    <listitem>
+     <para>
+      Message returned if the command was successful.
+     </para>
+    </listitem>
+   </varlistentry>
+  </variablelist>
+ </refsect1>
+
+ <refsect1>
+  <title>Examples</title>
+
+  <para>
+   To rename the function <literal>sqrt</literal> for type
+   <type>integer</type> to <literal>square_root</literal>:
+<programlisting>
+ALTER FUNCTION sqrt(integer) RENAME TO square_root;
+</programlisting>
+  </para>
+ </refsect1>
+
+ <refsect1>
+  <title>Compatibility</title>
+
+  <para>
+   There is an <command>ALTER FUNCTION</command> statement in the SQL
+   standard, but it does not provide the option to rename the
+   function.
+  </para>
+ </refsect1>
+
+ <refsect1>
+  <title>See Also</title>
+
+  <simplelist type="inline">
+   <member><xref linkend="sql-createfunction" endterm="sql-createfunction-title"></member>
+   <member><xref linkend="sql-dropfunction" endterm="sql-dropfunction-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:
+-->