On Sun, Feb 9, 2014 at 7:37 PM, Alexander Korotkov <aekorot...@gmail.com> wrote: > This is not only place that worry me about planning overhead. See > get_cheapest_fractional_path_for_pathkeys. I had to estimate number of > groups for each sorting column in order to get right fractional path.
AFAICT this only happens once per plan and the overhead is O(n) to the number of pathkeys? I can't get worried about that, but I guess it's better to test anyway. PS: You didn't answer my questions about splitting the patch. I guess I'll have to do that anyway to run the tests. Regards, Marti -- Sent via pgsql-hackers mailing list (firstname.lastname@example.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers