private function createSql2Query($sql2, $limit = null, $offset = null)
{
$queryManager = $this->sessionManager->getSession()->getWorkspace()->getQueryManager();
$query = $queryManager->createQuery($sql2, 'JCR-SQL2');
if ($limit) {
$query->setLimit($limit);
}
if ($offset) {
$query->setOffset($offset);
}
return $query;
}