Example for create function using argument names

Gavin Sherry

diff --git a/doc/src/sgml/ref/create_function.sgml b/doc/src/sgml/ref/create_function.sgml
index f88bc0a..2c43fe9 100644 (file)
--- a/doc/src/sgml/ref/create_function.sgml
+++ b/doc/src/sgml/ref/create_function.sgml
@@ -1,5 +1,5 @@
 <!--
-$PostgreSQL: pgsql/doc/src/sgml/ref/create_function.sgml,v 1.57 2004/06/25 07:05:34 dennis Exp $
+$PostgreSQL: pgsql/doc/src/sgml/ref/create_function.sgml,v 1.58 2004/07/11 23:23:43 momjian Exp $
 -->
 
 <refentry id="SQL-CREATEFUNCTION">
@@ -400,6 +400,17 @@ CREATE FUNCTION add(integer, integer) RETURNS integer
     RETURNS NULL ON NULL INPUT;
 </programlisting>
   </para>
+
+  <para>
+   Increment an integer, making use of an argument name, in PL/PgSQL:
+
+<programlisting>
+CREATE OR REPLACE FUNCTION increment(i integer) RETURNS integer AS '
+       BEGIN
+               RETURN i + 1;
+       END;' LANGUAGE plpgsql;
+</programlisting>
+  </para>
  </refsect1>