generated query strings from this macro are not executed directly, merely used as a query to which actual parameter values are bound.
a lot of this is pillaged from [miniorm](https://github.com/meuter/miniorm-rs) and [sqlx-crud](https://github.com/treydempsey/sqlx-crud) and then streamlined for a specific uuid-only, postgres-only use-case.
absolutely no content. purely scaffolding.
