[weiznich]

As this claim comes up quite often I have a set of examples I typically ask these people to provide. So far I've got so response, maybe you can point out how you would implement one or more of the following queries using `sqlx::query!`?

* A batch insert query for mysql

* A conditional where clause for postgresql that allows the user to dynamically specify the column + filter operation + values over e.g. a rest end point. Each column can appear zero, one or multiple times with different or even the operations.

* A IN expression with a list of values provided by a rust `Vec<_>` (so dynamically sized) for sqlite.