You don't need specific temporal support for an event-oriented DB, nor would I want it. I usually design a vanilla relational schema around events regardless of

You don't need specific temporal support for an event-oriented DB, nor would I want it. I usually design a vanilla relational schema around events regardless of which DBMS I'm using. E.g. instead of an "order" table with multiple states updated in-place, I'd have "order_placed" and "order_filled" where each row is an event, insert-only.