.... And sorry for the hassle. I was running the db cluster with .... Tthw wrong(old) postgresql.conf ;( Best Regrads. Milen -----Original Message----- From: Tom Lane [mailto:tgl@xxxxxxxxxxxxx] Sent: Monday, September 18, 2006 1:14 AM To: Milen Kulev Cc: pgsql-performance@xxxxxxxxxxxxxx Subject: Re: [PERFORM] Partition elimination problem "Milen Kulev" <makulev@xxxxxxx> writes: > My Problem is that I don't see partiotion elimination feature > (Parameer = constraint_exclusion is ON): Your example works as expected for me. You *sure* you have constraint_exclusion turned on? regards, tom lane