not_by_year: negate inclusion in range

[coorasse]

I could not find an example in the documentation on how to achieve that.
I want to fetch all records not created in a specific year.

I don't like this approach:

[3] pry(main)> Reservation.where.not(id: Reservation.by_year(2020)).to_sql
=> "SELECT \"reservations\".* FROM \"reservations\" WHERE \"reservations\".\"id\" NOT IN (SELECT \"reservations\".\"id\" FROM \"reservations\" WHERE (reservations.created_at >= '2019-12-31 23:00:00' AND reservations.created_at <= '2020-12-31 22:59:59.999999'))"

because I get a nested query which is not necessary.

I tried:

Reservation.where.not((Reservation.by_year(2020).where_values_hash))

but it does not work since where_values_hash returns {}.

Help? 😄