Tbh. I'm not quite sure of what's that exactly about. Emmanuel Bernard, is it about the way how BackendCustomLoader and OgmQueryLoader interact with OgmLoader to load the entity for each result set row? Currently we use it in a somewhat awkward way, where the tuple has already been loaded and is passed to OgmLoader via a context object then. So OgmLoader itself doesn't go to the datastore again in this case.