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-o

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://sirix.io | https://github.com/sirixdb/sirix https://github.com/sirixdb/sirix