private function removeIdxSite(Page $page)
    {
        $query = 'DELETE FROM idx_site_content WHERE site_uid = :site AND content_uid IN (SELECT content_uid FROM idx_page_content WHERE page_uid = :page)';

        $params = array(
            'page' => $page->getUid(),
            'site' => $page->getSite()->getUid(),
        );

        return $this->executeUpdate($query, $params);
    }