Given a Seq[QueryParam[A]] and a MetaMapper[A], there's currently no way to get the statement generated by these QueryParams when invoking MetaMapper[A]#findAll(...). It is therefore impossible to unit test modular queries or similar, and QueryParams become "black boxes", which introduces problems on its own.

By introducing a method like "MetaMapper[A]#createQuery(QueryParam[A]*)" and "MetaMapper[A]#createQuery(Seq[SelectableField], QueryParam[A]*)", these issues would be eliminated.