Comment by calebmpeterson

So, Datomic is a persistent data structure persisted to nonvolatile storage... I've wanted one of these for at least the last 2 years.

If only there was an open source implementation of this concept that I could run on my own hardware. Does anyone know of such a beast?

And, no, I don't want to roll my own versioned/timestamped row schema in an RDBMS - been there, suffered that.