Is it possible to select specific fields from child entity class using HQL join fetch?

    public List<Client> quotation() {
        try (Session session = sessionFactory.openSession()) {
            return session.createQuery("select p.description, p.cost, p.name from Client c join fetch c.product p where c.id=74", Client.class).getResultList();
        }
    }

That cause of :

Caused by: org.hibernate.QueryException: query specified join fetching, but the owner of the fetched association was not present in the select list

I want to select specific fields from child entity class product ex. description for Jasper Report.
If it is not possible to select specific field from child entity class using HQL then what is proper way to fill report using HQL of child entity fields?