Hi, On 08/22/2015 11:07 PM, Lester Caine wrote: > What we need is a > database that already has all the data and simply identify when some > small elements of it cease to be current. In OSM we do that by deleting the small elements ;) Bye Frederik -- Frederik Ramm ## eMail frederik at remote.org ## N49°00'09" E008°23'33"