Am Dienstag, 25. Juli 2006 17:56 schrieben Sie:
> You could use a procedural language like plpgsql.
Ok, using the plpgsql approach I tried this:
CREATE FUNCTION my_function(int4) RETURNS SETOF int8 AS
$BODY$
DECLARE
myrow RECORD;
BEGIN
IF (some_condition) THEN
FOR myrow IN SELECT ... -- some select statement
LOOP
RETURN NEXT myrow."foocolumn";
END LOOP;
ELSE
FOR myrow IN SELECT ... -- some select statement
LOOP
RETURN NEXT myrow."foocolumn";
END LOOP;
END IF;
RETURN;
END;
$BODY$
LANGUAGE 'plpgsql' VOLATILE;
But creating this function fails, because it's "missing a LOOP" statement.
What am I missing?
CU
Christian
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