[Haskell-beginners] database error simply by using a sting in a variable

[Francesco Ariis]

Hello Damien,

On Wed, Dec 05, 2018 at 05:02:48PM +0100, Damien Mattei wrote:
>     • Couldn't match expected type ‘Query’ with actual type ‘[Char]’

GHC would like to have a `Query`, but you are providing a `String`.
You didn't specify which library you are using, but I am willing to
bet there is an appropriate ":: String -> Query" function.

That of you need to put

    {-# Language OverloadedStrings -#}

on top of your file. Does that work?
-F