I had an email today about an old bug that I reported back in July 2008.
http://archives.postgresql.org/pgsql-bugs/2008-07/msg00026.php I didn't receive any response at the time and I didn't really follow it up. My report contained a full re-creation script to reproduce the problem and tonight I'm having the same problem with CVS Head. To my untrained eye it looks like the planner is not properly pushing down the row count. I know this is a busy time for all, but this seems to be distressing a few people. At the time I didn't find anyway apart from disabling nested loops. Would anyone gifted in the art of the query planner be able to look at this? David.