can't agree enough! was really interested in the now defunct mentat project, but was written in Rust - it's a game changer to have a JVM-powered datomic-ish project with time as a first class citizen.
hey, thanks for the reply. could you highlight the differences between Eva and Crux as you see them, today?
i do like passing in a timestamp and getting the state of the world as Crux seems to implement, whereas Eva seems slightly less oriented on time based querying, more so for a sort of log setup (where they have EAV+T+added?)
Well, Eva overlaps very closely with Datomic so I would recommend taking a look at the FAQ entry I wrote on the Crux/Datomic comparison (with 8 sections covering the major differences!): https://juxt.pro/crux/docs/faq.html#_comparisons
`EAV+T+added?` is the canonical data representation used by Eva, whereas Crux relies on two discrete "document" and transaction logs as the canonical representation. There are many reasons for this (data eviction, "unbundled" scalability etc.) but bitemporality (i.e. the ability to transact into the past/future) is definitely the primary reason why Crux doesn't follow the `EAV+T+Added?` pattern. You can get a feel for the indexes Crux uses here: https://github.com/juxt/crux/blob/master/src/crux/codec.clj#...
