Is AdequateRecord supposed to work with mysql2?

[Albert Llop]

Hi *,

I've realised our 4.2.3 application is printing this to the log when doing a basic `User.find(1)`:

SELECT  `users`.* FROM `users` WHERE `users`.`id` = 1 LIMIT 1

When I would've expected:

SELECT  `users`.* FROM `users` WHERE `users`.`id` = ? LIMIT 1  [["id", 1]]

I tried various things and found out that it only happens when using the `mysql2` adapter. The `mysql` and `pg` ones seem to print the expected logs.

Does it mean mysql2 doesn't get the full advantage of the improvements provided by AdequateRecord? Or is it just a difference in the way it logs things?

Thanks!