http://jtc1sc32.org/doc/recent/32N1323T-FCD13249-3-SQLMM-Spatial%20.pdf Paul Ramsey wrote: > Very useful link. Download it now while you still can. > > P > -- Paul Ramsey Refractions Research http://www.refractions.net pramsey at refractions.net Phone: 250-383-3022 Cell: 250-885-0632