2009/4/18 Tom Lane <t...@sss.pgh.pa.us>: > =?UTF-8?Q?Grzegorz_Ja=C5=9Bkiewicz?= <gryz...@gmail.com> writes: >> That expected 1510 rows in 'assigments' seems to be pretty off, > > The planner does not trust an empty table to stay empty. Every > Postgres version in living memory has acted like that; it's not > new to 8.4.
ok, thanks Quick question Tom. Can correlation be negative ? -- GJ -- Sent via pgsql-performance mailing list (pgsql-performance@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance
