[esafak]

This is a clever ad! I had not heard of them so I looked up the technology behind it: https://cedardb.com/docs/technology/

A Postgresql-compatible HTAP. It appears to be single server and closed source. Roadmap: https://cedardb.com/docs/roadmap/

[FridgeSeal]

IIUC its a commercialisation of a research DB called Umbra which has some pretty amazing performance characteristics.

[zekrioca]

Would this multiplayer work on Postgresql?

[ChrisWint]

Depends on what you mean by "works" I guess. The statements all look like PostgreSQL SQL and should, therefore, all work. That said, they are pretty heavy duty, especially the recursive Ray tracing, so I expect it to lag quite a bit.