/**
* Constructs an empty ezcQueryExpression
*
* @param PDO $db
*/
public function __construct(PDO $db)
{
parent::__construct($db);
}
/**
* Constructs an pgsql expression object using the db $db.
*
* @param PDO $db
*/
public function __construct(PDO $db)
{
parent::__construct($db);
$version = $db->getAttribute(PDO::ATTR_SERVER_VERSION);
$this->version = substr($version, 0, 1);
}
