henk de wit wrote: > Well, what do you know! That did work indeed. Immediately after the > ANALYZE on that parent table (taking only a few seconds) a fast > plan was created and the query executed in ms again. Silly me, I > should have tried that earlier. Of course, if your autovacuum settings are aggressive enough, you should gernerally not need to run ANALYZE explicitly. You should double-check that autovacuum is turned on and configured at least as aggressively as the default settings, or you will probably get little surprises like this when you least expect them. -Kevin -- Sent via pgsql-performance mailing list (pgsql-performance@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance