select distinct r.item_id, n.package_id
from cr_revisions r, cr_news n
where (r.revision_id=:object_id or r.item_id = :object_id)
and r.revision_id = n.news_id
select max(o.last_modified)
from acs_objects o, cr_news n
where n.package_id=:package_id
and o.object_id=n.news_id