Oh, sorry for the reply-to-self, but I know I can write an SQL function
with an OUT parameter list to do this. Like creating a custom rowtype
for the job, though, this gets cumbersome if the column-list is long, or
changes to the input tables might ever result in a change to column-list
types, add columns, etc.
Being able to write:
CREATE OR REPLACE FUNCTION blah(IN DATE, OUT a.*, OUT b.*) AS $$
SELECT * FROM a, b;
$$ LANGUAGE 'sql'
.. would be somewhat helpful as another form of the ability to expand
rowtypes for use in declarations, but having to list all the OUT
parameters explicitly as I currently do is no better than using CREATE
TYPE to make a custom rowtype or listing all the colums at call-sites
for a RECORD returning function.
--
Craig Ringer
Tech-related writing: http://soapyfrogs.blogspot.com/
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