Markus,
> As far as I examined, those views only count several things like fetched
> rows and pages, and cache hits.
>
> I would like something that really measures values like random_page_cost
> or cpu_tuple_cost that are hardware dependent.
>
> I assume such thing does not exist?
Nope. You gotta whip out your calculator and run some queries.
--
--Josh
Josh Berkus
Aglio Database Solutions
San Francisco