TypeChecked Query From Within Resolver
First off, Postgraphile is flat-out tremendous software, thank you @benjie 🙏 

My situation is that I need to perform a complex query and subsequent logic on the results in a resolver. I basically need to query a bunch of tree nodes, construct tree locally, and then return the deepest node (not exactly what I'm doing but that level of complexity).

Due to Postgraphile automating my entire api, I spend most of my time on the UI side (TypeScript) writing GraphQL queries that are typed generated using Apollo. I really like this workflow and love my generated types.

What are your thoughts on performing Type-Checked GraphQL query from within a Resolver on its own GraphQL server? 

I did see https://github.com/graphile/graphile-engine/issues/506 but didn't know if this was still the best way to attack this.

Thanks again!

