Have you tried returning SETOF RECORD[] and using the OUT specification? CREATE OR REPLACE FUNCTION bla(integer, date, OUT date, OUT integer) RETURNS SETOF RECORD[] AS $_$ SELECT date AS output_date, $1+2 AS next_record FROM table WHERE id = $1 AND start_date >= $2; $_$ LANGUAGE SQL;
(Just an example code, I haven't tried it myself. I know it works for plpgsql functions, not sure for sql functions). Regards, -- Jorge Godoy <jgo...@gmail.com> On Thu, Aug 27, 2009 at 08:08, Andreas <maps...@gmx.net> wrote: > Hi, > wouldn't it be great to have functions return "setof something" as result > where "something" was determined out of the result of a SELECT within the > function? > like > > CREATE OR REPLACE FUNCTION coffee(integer, timestamp, timestamp) > RETURNS SETOF > AS > $BODY$ > SELECT staff_id, name, room, COUNT(coffee_id) AS cupcount > FROM staff JOIN coffee_log ON staff_fk = staff_id > WHERE (staff_id = $1) AND (coffee_time BETWEEN $2 AND $3) > GROUP BY staff_id, name, room > ORDER BY name; > $BODY$ > LANGUAGE 'sql' STABLE > > There the SELECT dumps a constant set of collumns where as far as I know > have to be defined as a type to make SETOF happy or define the names > whenever I call the function which would be tedious. > > Actually this is a pretty simple example of some reports I need to produce. > They have around 60 collumns and there is also an aggregate and filtering > on an id as well as 2 timestamps. > Since the aggregate depends on id and timestamps too, it is no solution to > build a view and select from that within the function. > > -- > Sent via pgsql-sql mailing list (pgsql-sql@postgresql.org) > To make changes to your subscription: > http://www.postgresql.org/mailpref/pgsql-sql >
