They in inverses. ST_Contains(A,B) <=> ST_Within(B,A) P. On Thu, Sep 4, 2008 at 3:49 PM, <cyw at dls.net> wrote: > What are the difeerences between these two functions? > Thanks. > _______________________________________________ > postgis-users mailing list > postgis-users at postgis.refractions.net > http://postgis.refractions.net/mailman/listinfo/postgis-users > >