> Daniel Caune wrote:
>> Is there any suggestion against using OUT parameter for local
>> calculation such as using a local variable?
In plpgsql (at least in the current implementation) an OUT parameter is
pretty much just a local variable, and so there's no efficiency argument
against using it as a temporary. Whether you consider this good style
is a matter of opinion.
"Owen Jacobson" <ojacobson@osl.com> writes:
> I'd say there's no problem with this, PROVIDED you can ensure you'll
> never abort before completing the computation.
Not really an issue in Postgres: we do not support pass-by-reference
parameters and are unlikely to start doing so. There isn't any way
that you can affect locals of a calling procedure before you return.
regards, tom lane