/**
* @see lib/pkp/classes/oai/PKPOAIDAO::getEarliestDatestamp()
*/
function getEarliestDatestamp($setIds = array())
{
return parent::getEarliestDatestamp('SELECT CASE WHEN COALESCE(dot.date_deleted, a.last_modified) > i.last_modified THEN i.last_modified ELSE COALESCE(dot.date_deleted, a.last_modified) END', $setIds);
}
/**
* @see lib/pkp/classes/oai/PKPOAIDAO::getEarliestDatestamp()
*/
function getEarliestDatestamp($setIds = array())
{
return parent::getEarliestDatestamp('SELECT MIN(COALESCE(dot.date_deleted, a.last_modified))', $setIds);
}