[yashap]

Another recent one, AlloyDB from Google Cloud. Looks pretty interesting/promising. Sort of like their competitor to AWS Aurora, built on top of Postgres, with the added ability to handle OLAP workloads well (along with apparently great OLTP performance).

TimescaleDB and Citus are notable too.

But yeah, if you’re building a DB product, starting with Postgres and customizing from there seems like an excellent approach.