- examples to fix still
- error_extensions.md ResultExt example does not compile!
- trait ErrorExtensions is not implemented for ParseIntError
- dataloader
- requires sqlx to work. So we either "stub" it OR we rewrite them simpler to use a simple "faux" db library
I think the previous implementation is not elegant enough, the `QueryBuilder::set_files_holder` function looks disgusting, so I refactored it.
By the way, the performance of parsing InputValue has been optimized, and unnecessary clones have been removed.