essential-slick
                                
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                        Mention asColumnOf
E.g., useful for comparing a ID[T] against a primitive type if you need to. Perhaps when converting a schema to have improved types over time.
http://stackoverflow.com/questions/41465003/compare-mappedto-with-raw-type-in-slick-query/42069543#42069543
Also for running string extension methods on optional strings: https://stackoverflow.com/a/45409859/154248
NB: as Slick 3.3.0, there's a mapping in place for string extension methods. E.g., if your column is an Option[String] you can now just like that or whatever. Fact check needed!