Michael,
> This is also currently valid:
>
> CREATE FUNCTION mod (x int, y int)
> RETURNS int LANGUAGE plpgsql
> AS $f$
> DECLARE
> z INT := x % y;
> BEGIN
> RETURN z;
> END; $f$
>
> As is this:
>
> CREATE FUNCTION mod (x int, y int)
> RETURNS int LANGUAGE plpgsql
> AS $f$
> BEGIN
> RETURN (x % y);
> END; $f$
Certainly. I was doing that to have a simple example; obviously you
wouldn't write a mod funciton, and you wouldn't do it in plpgsql. There
are other case where the lack of mutability in IN parameters causes you
to create a throwaway variable.
--
Josh Berkus
PostgreSQL Experts Inc.
www.pgexperts.com
