BTW... When I export the model in org.hibernate.test.annotations.enumerated.EnumeratedSmokeTest using the MySQL5InnoDBDialect, here is what I get:
create table EntityWithEnumeratedAttributes ( id integer not null, noEnumType integer, notAnnotated integer, ordinalEnumType integer, stringEnumType varchar(255), primary key (id) ) ENGINE=InnoDB
All looks exactly like I would expect it to look.