Am Montag, 31. März 2008 schrieb Tom Lane:
> Peter Eisentraut <peter_e(at)gmx(dot)net> writes:
> > OK, first results with this patch are in: The selectivity estimations are
> > adjusted nicely, but the cost calculation doesn't change at all. Before:
>
> I've forgotten the context ... what's the whole query and plan again?
> And which PG version exactly?
Please see http://archives.postgresql.org/pgsql-hackers/2008-01/msg00048.php