Description
Rya Mongo fails on a fairly straightforward query:
DATA = <u:a> <u:tt> <u:b> . <u:a> <u:ww> <u:x> . <u:a> <u:ww> <u:y> . QUERY = select ?s ?foo where { ?s <u:ww> ?foo . ?s <u:tt> <u:b> }
This is a bug in how Mongo Rya solves joins. The first Statement Pattern will return multiple binding sets, and try to join it with a single statement. The Mongo Rya Query Engine can't handle this case.
Full Code at:
https://gist.github.com/amihalik/61cf870650b7443389e7be7600f8502c
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