Alex Solovey <a.solovey@xxxxxxxxx> writes: > Thanks for the patch. We've tried it here, and it improved query plan > slightly (indeed, it looks exactly like the plan from 8.2.6 now). > But, as you've said, empty sub-joins are still not discarded, so query > execution time did not improve. And this is the same in both 8.2 and 8.3. If you're feeling brave, try the patch I just committed to CVS. regards, tom lane - Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general
