I’m working on extending Postgres to run on top of FoundationDB. The goal would be turning Postgres into a distributed, horizontally scalable database with automatic sharding and replication.
Hoping to share a first version of it soon. It’s been absolutely fascinating digging into Postgres internals!
Yes, pretty similar although I don't think TiDB is actually built on top of MySQL, instead it just reimplements the protocol for compatibility. My project is actually an extension of Postgres, which hopefully means much better Postgres compatibility in the long run!
Hoping to share a first version of it soon. It’s been absolutely fascinating digging into Postgres internals!