select type_key
from ab_contact_attr_types
where type_id = (select min(type_id)
from ab_contact_attr_types
where type_key not in (select type_key
from ab_contact_attrs
where contact_id = :contact_id))
select type_key
from ab_contact_attr_types
where type_id = (select min(type_id)
from ab_contact_attr_types)
select type_key, value from ab_contact_attrs where attr_id = :attr_id