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Example for create function using argument names

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Gavin Sherry
This commit is contained in:
Bruce Momjian 2004-07-11 23:23:43 +00:00
parent af4de81469
commit cf9fd800ec
1 changed files with 12 additions and 1 deletions
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13
doc/src/sgml/ref/create_function.sgml
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@ -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"> <refentry id="SQL-CREATEFUNCTION">
@ -398,6 +398,17 @@ CREATE FUNCTION add(integer, integer) RETURNS integer
LANGUAGE SQL LANGUAGE SQL
IMMUTABLE IMMUTABLE
RETURNS NULL ON NULL INPUT; 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> </programlisting>
</para> </para>
</refsect1> </refsect1>