> note this doesn't mean we couldn't consider changing it from a point-in-time to a range Exactly, that's at the heart of what I was getting at. My original question was more in the vein of, "given that you spent engineering effort build the foundation to support expiry, is it now possible to more easily add support an optional start time (making it a range)? It was naturally the first thing I looked for after learning about expiring relationships, but I noticed it wasn't possible. That and watching expiring relationships (but i could understand that this might be much harder)