[jflatow]

Similar also to DiscoDB, which does support compression, and uses perfect hashing for constant time-lookup with minimal disk access.

Not only that but it provides lightning-fast conjunctive normal form queries, a.k.a logical combinations of primitive keys. Plus it has Python / Erlang bindings.

http://discodb.rtfd.org

https://github.com/jflatow/discodb

[seiji]

Yeah, my first two thoughts were discodb and bitcask http://basho.com/hello-bitcask/ too.