Robert, Mark, I have not been able to reproduce this issue in a clean test on 9.0. As a result, I now think that it was related to the FSM being too small on the user's 8.3 instance, and will consider it resolved. -- -- Josh Berkus PostgreSQL Experts Inc. http://www.pgexperts.com -- Sent via pgsql-performance mailing list (pgsql-performance@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance