$countQuery = preg_replace("/select[ rnt](.*)[ rnt]from/i","Select count(*) as dd From",$this->sourceSql);
$countQuery = preg_replace("#SELECT[ rnt](.*)[ rnt]FROM#is", 'SELECT COUNT(*) AS dd FROM', $this->sourceSql);
$countQuery = preg_replace("#ORDER[ rnt]{1,}BY(.*)#is", '', $countQuery);