Showdown: MySQL 8 vs. PostgreSQL 10

> [2] When I say Postgres is great for analytics, I mean it. In case you don’t know about TimescaleDB, it’s a wrapper on top of PostgreSQL that allows you to INSERT 1 million records per second, 100+ billion rows per server. Crazy stuff. No wonder why Amazon chose PostgreSQL as its base for Redshift.

Correction: Amazon chose ParAccel, which was a data warehouse forked from PostgreSQL.

Many data warehouse products have followed this path due to licensing. MySQL is GPLv2 which means you can't ship derivative works without releasing your code. PostgreSQL has a permissive license similar to MIT/BSD. You can do anything you want with the code. That's still a major consideration which the article omitted.