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 pgsql-performance regardless. Regards, Jeff Davis -- Sent via pgsql-performance mailing list (pgsql-performance@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance