On Wed, 2013-05-01 at 17:44 +0200, Stefan de Konink wrote:
> Combined with the recent bugfix regarding hash
> estimation, it gives me a good indication that there might be a bug.
To which recent bugfix are you referring?
The best venue for fixing an issue like this is pgsql-performance -- it
doesn't make too much difference whether it's a "bug" or not.
Performance problems sometimes end up as bugs and sometimes end up being
treated more like an enhancement; but most of the progress is made on