dovecot sha512-crypt database storage

Hello,

I've got dovecot authenticating to a MySQL database. I've got a field varchar(128) called password. Whenever I create a password I use doveadm pw as in:

doveadm pw -s sha512-crypt

now i'd like to get MySQL to make a dovecot-specific password. My goal is to eventually have roundcube's password plugin working with this MySQL database to change the password.

Thanks. Dave.