Interesting article and I've enjoyed reading all the comments. The focus on Postgres is fascinating to me. From an analytics database perspective, we've had great success with Exasol, which isn't so well known in the US. It is very low overhead (no index management) and extremely fast and scalable. They have a free version as well as a licensed MPP version -- cloud hosted or on-prem. It is a blank slate, but it can do all the things.