hotfix: Changed case in switch to string
hotfix: Changed case in switch to string

I read the last PR about this and realized it had to be done using a string instead of type.JSON for it to be separated from the base driver.

Signed-off-by: Nicolás Rodrigues <46f1a0bd5592a2f9244ca321b129902a06b53e03@nicorodrigues.com.ar>

db-migrate/mysql,db-migrate/mysql