Use stripped username in SQL

Hi, I am using ldap for authentication, and sql for adding dynamic VLAN IDs. For ldap, the domain is stripped, and the Stripped-User-Name is used for the lookup. However, when the the SQL-User-Name is generated, the domain is added back. I'd like to use the Stripped-User-Name for the SQL lookups as well (in the radusergroup table). How should I do that? I have 3.0.11. Laszlo