$this->addOption( 'LIMIT', $limit + 1 );
$this->addOption( 'GROUP BY', 'ct_tag' );
$this->addWhereRange( 'ct_tag', 'newer', $params['continue'], null );
$this->addOption( 'LIMIT', $limit + 1 );
$this->addOption( 'GROUP BY', 'ct_tag' );
$this->addWhereRange( 'ct_tag', 'newer', $params['continue'], null );