@bananas Aside from a slight mishap with the query planner (now worked around) it took like, under an hour to work out a sensible and performant task query with SPARQL (the most complex query in the project), with basically no prior SPARQL experience, and very little frustration?

I spent at least a day on the SQL equivalent, and a lot more than that if you count all the time spent doing performance optimizations to make it slightly faster