I would argue that for all but the largest tech companies you only need a single data system which is Postgres. Message brokers, analytical databases all can be built on Postgres. Unfortunately, Postgres as it's built now lacks any semblence of extensibility which makes this impossible in practice.
I would propose a rewrite of Postgres in another language like Rust, introducing a pluggable application layer on top. While ambitious in scope I think it would be helpful and even necessary.
I would propose a rewrite of Postgres in another language like Rust, introducing a pluggable application layer on top. While ambitious in scope I think it would be helpful and even necessary.