marcin mank wrote: > You are correct, I think, though this does not solve the division problem: > As a first goal I'm just attempting to reduce the EPSILON from 1.0E-6 down to 1.0E-015 (give or take). The current regression test suite works fine down to 1.0E-09. At 1.0E-10 errors appear, not in the geometry sections, but in the select_view test of all things. This is most likely due to postgresql now giving the more correct (hence different) answers.
A real test suite is needed for this. Setting up PostGIS + MySQL + OtherCommerical for comparison purposes. The other problem is many of the basic geometric operators in postgres, such a left of, above, etc, are so incorrectly implemented, they are not even wrong. -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers