I have built "huge tables with lots of versioned data and massive indexes". This is false. I had no issues partitioning the data and spreading it across shards. On Postgres.

> ... takes solutions that require engineering teams.

All it took was an understanding of the data. And just one guy (me), not an "engineering team". Mongo knows only one way of sharding data. That one way may work for some use-cases, but for the vast majority of use-cases it's a Bad Idea. Postgres lets me do things in many different ways, and that's without extensions.

If you don't understand your data, and you buy in to the marketing bullshit of a proprietary "solution", and you're too gullible to see through their lies, well, you're doomed to fail.

This fear-mongering that you're trying to pull in favour of the pretending-to-be-a-DB that is Mongo is not going to work anymore. It's not the early 2010s.