postgresql7.1 select pc.instance_name, na.node_id from apm_packages pa, site_nodes na, site_nodes nc, apm_packages pc where pa.package_key = 'assessment' and na.object_id = pa.package_id and nc.node_id = na.parent_id and pc.package_id = nc.object_id and acs_permission__permission_p (pa.package_id, :user_id, 'admin') = 't'