Hi - a lot of commenters have valid concerns and critiques, but I joined HN after lurking for years to say that I really like the direction you’ve taken! I’m particularly happy about the convenient syntax for joined inserts and sum types.

I see that you’ve built this as a patched version of Postgres, but I’m curious how much of this syntax you could implement as a client library and shell that would run against an existing Postgres instance.

Right away, you would get adoption from people who have an existing Postgres, or who want to take advantage of SaaS offerings like AWS Aurora.

Longer term, I could imagine the client/shell being extended to support multiple backend DB dialects, even things like Spark or Redshift which you’d have a hard time modifying intrusively.

It could also be cool to explore interoperation with existing schemas written in plain SQL, so people could adopt it incrementally that way.