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by lichtenberger 1093 days ago
You can use Datomic for instance (mentioned already in your article IIRC!?) or SirixDB[1] on sich I'm working in my spare time.

The idea is an indexed append-only log-structure and to use a functional tree structure (sharing unchanged nodes between revisions) plus a novel algorithm to balance incremental and full dumps of database pages using a sliding window instead.

[1] https://sirix.io | https://github.com/sirixdb/sirix