Tom,
Right, because they do. If you think otherwise, demonstrate it. (bonnie tests approximating a reverse seqscan are not relevant to the performance of indexscans.)
Working on it. I *think* I've seen this issue in the field, which is why I brought it up in the first place, but getting a good test case is, of course, difficult.
-- Josh Berkus PostgreSQL Experts Inc. www.pgexperts.com -- Sent via pgsql-performance mailing list (pgsql-performance@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance