"Why Us" => "I ran Postgres at Instacart, where we scaled the company 5x in April of 2020. The biggest problem we had was making Postgres serve 100,000s of grocery delivery orders per minute"
Couldn't be a better why us :)
Is 100k order per minute a lot? Even a single Postgres instance should serve that fine?
Legends
why did we switch to per minute? A modern quality enterprise SSD can do 35K +/- legit fsyncs per second.