/**
* Executes a query.
* @param mixed ...$args
* @return Result|NULL
* @throws QueryException
*/
public function query()
{
$this->connected || $this->connect();
$args = func_get_args();
$sql = $this->sqlPreprocessor->process($args);
$result = $this->driver->query($sql);
$this->fireEvent('onQuery', [$this, $sql, $result]);
return $result;
}
