public function count()
    {
        if (empty($this->queryString)) {
            $builder = clone $this->builder;
            $builder->resetQueryPart('orderBy');
            $stmt = $builder->execute();
        } else {
            $stmt = $this->connection->executeQuery($this->queryString, $this->queryParams);
        }

        return (int) $stmt->rowCount();
    }