Same. Hi, Apple! :D

I'd love to do more work with predicates in general. That's an open research problem I've been noodling on for years. Pretty much any SQL DB would be a good candidate for that work!

I'm gonna be a weirdo and say I actually loved Fauna's FQL. A little Lisp-ish functional language for queries is a great way to interact with document-structured data. SQL is fantastic for sheer breadth, though its specification is a nightmare and actually writing portable SQL is real challenging. One of those places where a stronger spec and conformance tests would have really helped.