Josh Berkus <j...@agliodbs.com> writes: > On 1/10/11 7:25 AM, Tom Lane wrote: >> I'm a bit worried though that there might be other >> cases where the estimator comes up with 1.0 selectivity but it'd still >> be worth considering a bitmap scan.
> Well, I think the answer is to apply the other fixes, and test. If > there are other cases of selectivity=1.0, they'll show up. People are > pretty fast to complain if indexes aren't used, and we have a good > production test case available once you implement the other operators. "Implement the other operators"? I don't think we're on the same page here. What I'm talking about is a one-line change in indxpath.c to not short-circuit consideration of a bitmap indexscan. regards, tom lane -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers