Functions Returning Record Datatype

From: A E <cooljoint(at)yahoo(dot)com>
To: pgsql-general(at)postgresql(dot)org
Subject: Functions Returning Record Datatype
Date: 2004-01-03 18:07:37
Message-ID: 20040103180737.17495.qmail@web12104.mail.yahoo.com
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Hi,

I was wondering if I have a function that returns a record datatype, and I call it using the as keyword to specify the table structure, can I return a different structure than the one specified?

Say I call select * from xy ('abc', 'def') as (samplea char, sampleb char) for a function of

CREATE FUNCTION xy(char, char) RETURNS record AS'
Declare
testout record;
if userallowed = 0 then

else
for testout in ''select * from testtable'' loop
return next testout;
end loop;
end if;
return null;
end;'
language 'plpgsql';

Can I instead send back "errordescription text, errornumber int, errornext int"? How do I do that?

I have a web front end and I have to get custom database errors to the front end. Maybe there is something more simple?

TIA
Alex Erwin

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