Indeed, I just think the ban on it makes certain things harder to find before you're using it in a production system (with proper production loads). Pagination and sorting, for example, do not exist in the usual sense.

https://groups.google.com/forum/#!topic/datomic/gr9fscuF6oE

https://groups.google.com/forum/#!topic/datomic/NgVviV9Sw8g

It'd be swell if they put up a list of differences, because using the pull query API + clojure really is quite cool -- it's just good to know what you're getting into.