postgresql7.1
select acs_rel_type__drop_type(:rel_type,'t')
drop table $table_name
select r.rel_id
from acs_rels r
where acs_permission__permission_p(r.rel_id, :user_id, 'delete')
and r.rel_type = :rel_type
select s.segment_id
from rel_segments s
where acs_permission__permission_p(s.segment_id, :user_id, 'delete')
and s.rel_type = :rel_type