> > Anyway, how does one measure the perfomance impact of such a change?
> > By merely changing the constant definition, or also by actually using
> > long identifiers? I can do that if it's of any help, for various values
> > perhaps.
>
> I think I would measure disk size change in a newly created database,
> and run regression for various values. That uses a lot of identifier
> lookups.
With schemas, maybe there'd be less name lookups and comparisons anyway,
since there's more reliance on oids instead of names?
Chris