On Mon, 2013-01-21 at 00:48 -0500, Tom Lane wrote: > I looked at this patch. ISTM we should not have the option at all but > just do it always. I cannot believe that always-go-left is ever a > preferable strategy in the long run; the resulting imbalance in the > index will surely kill any possible benefit. Even if there are some > cases where it miraculously fails to lose, how many users are going to > realize that applies to their case and make use of the option?
Sounds good to me. If I remember correctly, there was also an argument that it may be useful for repeatable test results. That's a little questionable for performance (except in those cases where few penalties are identical anyway), but could plausibly be useful for a crash report or something. Regards, Jeff Davis -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers