On Fri, Jul 24, 2020 at 10:39 AM Guillaume Lederrey glederrey@wikimedia.org wrote:
I've created https://phabricator.wikimedia.org/T258769 to track this request.
Great, thanks for doing that. I've added an example query (https://tinyurl.com/y26mtate) of how things are currently done.
It is unlikely that we'll be able to remove federation in this case. At least it is unlikely that we'll merge those 2 graphs in a single Blazegraph instance. Given the concerns we have about scaling this service, splitting into more federated graphs seems a better option than merging into larger graphs. There might be ways to pull a subset of the Wikidata dataset into WCQS, but that looks like a complex problem.
Yeah, I get that. I think it might be more interesting in the short-term to figure out how things can get easier in terms of adding some extra features in the query UX to make write federation SPARQL easier.
-- Hay