LOL at how a chunk of the comments ended up being the author or this and an author of Diesel for Rust discussing cool capabilities of Diesel.

Personally, I prefer my ORM/query builders to be more structures and adhere to the parent language more, with sane escape hatches for small bits of raw SQL as needed. This does look like it would be cool for a project that took the inline SQL or SQL phrasebook approach that wants to add a bit of structure, as it might be easier to put this in place over that?

You might prefer: http://fsprojects.github.io/SQLProvider/