postgresql7.1 select content_revision__delete(:revision_id) select item_id from cr_items where parent_id = etp__get_folder_id(:package_id) and name = :name select count(1) as revision_count from cr_revisions r, cr_items i where r.item_id = i.item_id and i.parent_id = etp__get_folder_id(:package_id) and i.name = :name and r.revision_id > :revision_id