"EventReduce can be used with relational databases but not on relational queries that run over multiple tables/collections."
Forgive my ignorance, but that is the whole point of working with a relational database. If cannot use JOINS then this solves only a very limited use case.
Forgive my ignorance, but that is the whole point of working with a relational database. If cannot use JOINS then this solves only a very limited use case.