On Sat, Jul 17, 2010 at 07:46:23PM +0200, Thomas Kellerer wrote: > Tom Lane wrote on 17.07.2010 19:35: >> I'd dismiss those numbers as being within experimental >> error, except it seems odd that they all differ in the same direction. > > And it's reproducable (at least on my computer). As I said I ran it 20 > times (each run did it for 5,10,... columns) and the values I posted > were averages of those runs. You couldn't give us the standard deviation as well could you? If the deviation within a test is larger than that between tests then you can't say much, but without the numbers this can't be determined. -- Sam http://samason.me.uk/ -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general