Hi, On 11/21/2011 12:10 AM, Serge Wroclawski wrote:
If I see an object node ID 1234567, and it's of version 5, can I then safely assume that there must be a version 1, 2, 3 and 4?
At the moment I believe you can make this assumption; It is possible that some pre-v1 history has been lost however, so the assumtion that v1 is always the state in which the object was initially created is probably wrong.
I recommend not relying on this though. The reason for this recommendation is that Data Working Group at one time discussed what we called an "interdiction API" that would allow us to mark certain versions of objects as being unsuitable for distribution. It would be possible to "interdict" for example version 3 of an object, leaving the downloader with v1, v2, v4, v5.
All this is 100% vapourvare at the moment but it could happen some day. Bye Frederik -- Frederik Ramm ## eMail [email protected] ## N49°00'09" E008°23'33" _______________________________________________ dev mailing list [email protected] http://lists.openstreetmap.org/listinfo/dev
