Ragi Burhum <rburhum <at> gmail.com> writes: > Brent and Sean are correct. Nevertheless, it is worth noting that if you are trying to do k nearest neighbor queries, PostgreSQL 9.1 has much better (as in orders of magnitude) indexing support for this particular scenario. See http://www.depesz.com/index.php/2010/12/11/waiting-for-9-1-knngist/
It is worth noting that the "geometry" native to postgres is very useful for building tricky multidimensional indices and getting distances in a sort of "state space" analysis. For actual mapping of stuff on the ground, Postgis is way more appropriate. _______________________________________________ postgis-users mailing list postgis-users@postgis.refractions.net http://postgis.refractions.net/mailman/listinfo/postgis-users
