On Wed, Sep 19, 2012 at 6:43 PM, Mike N <nice...@att.net> wrote: > On 9/19/2012 6:29 PM, Michael Kugelmann wrote: >> >> Or to be more precise: you need to use a lot of effort and check all >> versions of an object (this means: the whole planet) whether it once had >> the "source=cadastre" tag. But thats a lot of work to do. Much (!) more >> easy to identify all the object is if you can take all object created by >> a special account => just check the changesets. > > > I may be missing something, but the special account has the same problem: > any edit that splits an object loses the created-by information unless the > history is used. Similarly, any edits change the last-edit owner.
Splitting can a problem, yes. It was decided to ignore it during the ODbL change because it difficult to determine and is a pretty miniscule problem at the end of the day. If a way is split but the nodes aren't touched, the way might still get deleted if all the nodes go away. As for the last-edited getting changed, that's why Michael talked about using the changesets. You can download the OSC of the original upload and have a list of all of the imported objects, regardless of the current state of it. If all changesets of a user are known to be from the same import it makes things simple. If you have to wade through thousands of changesets with varying comments... not so simple. Toby _______________________________________________ talk mailing list talk@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk
