From: | Lonni J Friedman <netllama(at)gmail(dot)com> |
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To: | pgsql-novice(at)postgresql(dot)org |
Subject: | returning more than one value from a function |
Date: | 2010-04-30 16:37:34 |
Message-ID: | i2p7c1574a91004300937xb9a11cacr4f856ecaa3edbd17@mail.gmail.com |
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Lists: | pgsql-novice |
Greetings,
I'm attempting to create a PL/PGSQL function with an IF/THEN
conditional. Basically, all I really need is the ability to run a
long/complex SQL query based on the value of the newest row of one
column in a specific table (if its equal to 1 then run the SQL, if
anything else don't run it). In pseudo code, something like:
CREATE OR REPLACE FUNCTION foo0 RETURN text AS $$
IF (SELECT current_status from table0 WHERE id in (SELECT max(id) FROM
table0))='1' THEN
<LONG SQL QUERY>
END IF;
LANGUAGE 'plpgsql' ;
This seems like a fairly simple requirement, yet I can't find any way
to do this without creating a function. The problem is that the
long/complex SQL query needs to return multiple columns of output (not
just a single value), and functions can only return a single
value/column, so I'm a bit stuck on how to make this work.
Is there an alternative solution that I'm missing?
thanks!
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