> In the specific case of the OSM database, if you wanted to start doing > this, you would probably need to establish a per-object licensing flag. This > would require significant code changes and I assume you're not volunteering > to do that.
We can assume that user won't change his/her mind too often, so for each user we need just maintain a list like: edits from 1. 1. 2004 to 10. 12. 2008 are PD edits from 10.12.2008 to 7. 11. 2009 are only Odbl edits from 7. 11. 2009 to now are PD ... we get few lines in DB for this variable licensing, and not license tag for each of user's object in database (which could be thousands, perhaps even millions of edited primitives for very active users) ... it is then problem of whoever wants to extract PD subset from the data to parse this information and extract really only the PD data ... Martin _______________________________________________ talk mailing list [email protected] http://lists.openstreetmap.org/listinfo/talk
