Many thanks to the hackers from Erlangen, Bayreuth, Heidelberg and Nuremberg for their contribution to the implementation of the federated SPARQL queries in WissKI!
It was quite a bit of work (almost two years!), but WissKI can handle federated repositories now! We have plans for queries to one repository, multiple repositories, each federated or not federated, or even just one
federated and others not. That's a big boost for linked open data management!
OK, we still need some testing and some things like sorting and pagination are still missing, but next Hackdays are coming soon!