postgresql7.1 select p.public_p, p.pres_title as presentation_title, acs_permission__permission_p(:pres_item_id, :user_id, 'wp_admin_presentation') as admin_p, acs_permission__permission_p(:pres_item_id, :user_id, 'wp_delete_presentation') as delete_p, ao.creation_user from cr_wp_presentations p, cr_items i, acs_objects ao where i.item_id = :pres_item_id and i.live_revision = p.presentation_id and ao.object_id = :pres_item_id select first_names || ' ' || last_name as full_name, person_id, acs_permission__permission_p(:pres_item_id, person_id, 'wp_view_presentation') as view_p, acs_permission__permission_p(:pres_item_id, person_id, 'wp_edit_presentation') as edit_p, acs_permission__permission_p(:pres_item_id, person_id, 'wp_admin_presentation') as admin_p from persons where acs_permission__permission_p(:pres_item_id, person_id, 'wp_view_presentation') = 'f' or acs_permission__permission_p(:pres_item_id, person_id, 'wp_edit_presentation') = 't' or acs_permission__permission_p(:pres_item_id, person_id, 'wp_admin_presentation') = 't'