On 6/11/2010 3:49 PM, fedesan wrote: > DATA "geom900913 from (select gid,geom900913 from gis.states_g) as foo > using unique gid using SRID=900913" I think you'd be ok with: DATA "geom900913 from gis.states_g using unique gid using SRID=900913" Dont think it should make a speed difference though -Andy