Pavel Stehule <pavel(dot)stehule(at)gmail(dot)com> writes:
> RETURNS TABLE (x int, y int) is equal to CREATE FUNCTION foo(.. OUT x
> int, OUT y int) RETURNS SETOF RECORD. But PostgreSQL functions ignore
> typmod for parameters - so it is not bug, it is feature :(
Yeah. Or at least, this is not something that can be changed without a
great deal of work --- and application breakage, more than likely.
You could possibly get the length to be enforced by storing into a local
variable of the record type before returning it. I think plpgsql does
account for typmod when assigning to locals.
regards, tom lane