Re: [geogig-dev] Question about GeoGig functioalities

[<Schmidt.Sebastian2@xxxxxx>]

Hi and welcome!

Geogig identifies features with an ID, and not about their geometries. When importing you can specify which column to take or let geogig assign a number itself.
Regarding attribute structure change there is more chance that geogig will be able to handle that - but I didn't try it out yet. Perhaps someone of the core guys can help out?

I fear you need to do some preprocessing before importing into geogig by 
* assigning IDs for objects with the same geometry - you could try to calculate a hash about the WKB or WKT geometry and turn that into an ID column - that should turn identical Geometries into identical IDs.
* (perhaps) getting all Versions into the same attribute structure. 

Once you have that you get great capabilities for detecting changes.

Kind regards,
Sebastian