They're not web scale.

https://youtu.be/b2F-DItXtZs

Try streaming updates to a query without polling…which is essentially all web apps.

It’s fundamentally the wrong approach and people don’t realize. The relational model is good for analytics.

Think about how often you need to know the internals or you have to debug perf by trying to get a black box to do what you want.

Devs should be a layer deeper.