I have a somewhat unusual problem. I have a local instance of Galaxy wherein users are created automatically upon authentication (use_remote_user = True). However, for a handful of users, their remote_user names have changed. After that change, a new Galaxy user and role were created, and they can't access their old data. Worse, they continued using the new account and so now have two sets of (possibly) identical data. Is there a simple way of migrating datasets, jobs, quotas, etc., from one user to another? I've figured out a way to make the necessary changes at the MySQL database level. However, there is one sticky problem. None of the tables (aside from role and galaxy_user) define the role_id or the user_id as unique, so I would assume I can simply UPDATE the table to set the old role_id or user_id to the new role_id or user_id. Unfortunately, it appears that some of the tables are in practice keeping the role_id or user_id as unique. For example, default_user_permissions or user_role_association. Could a single user have multiple default permissions or multiple roles? What would happen if this were the case? In short, can anyone say which tables have practical unique role_id/user_id to data associations? Of course, I could just delete the old user and say too bad... Thanks, David Hoover Helix Systems Staff, CIT/NIH