Can Postgres functions be used as stored procedures?

All the examples in the documentation of user-defined sql functions
return a single result. It is possible to use the 'setof' keyword to
define a function that (for example) executes a query and returns all
the records?

Below is an example of my attempt to make this work. While the function
returns the proper number of rows, it's returning a numeric value
instead of the record for each row. When 'select * from bar' is executed
directly from psql it returns the proper records from the table -- is
there any way I can encapsulate this behavior in a function?

create function foo () returns setof bar
as 'select * from bar'
language 'sql';

=>select foo() as foobar;
foobar
---------
135895376
135895376
135895376
135895376
135895376
135895376
135895376
135895376
135895376
135895376
135895376
(11 rows)

--
Tod Hagan On assignment at:
Bondcliff Internet Group NetWave, Inc.
tod(at)bondcliff(dot)com todh(at)netwavelink(dot)com