Getting the return type right for SETOF

Hi folks,

I'm playing with SETOF on functions. But I can't get the return type
correct. What have I missed? A cast?

CREATE OR REPLACE FUNCTION elementGet (text) RETURNS SETOF
element_type AS '

select 1,
\'test\',
\'F\'
\'A\',
FALSE,
FALSE
'
LANGUAGE sql stable;
ERROR: function declared to return element_type returns "unknown"
instead of text at column 2

\d element_type
Composite type "public.element_type"
Column | Type
------------+---------
id | integer
name | text
type | text
status | text
iscategory | boolean
isport | boolean

--
Dan Langille : http://www.langille.org/