Converts an HQL to SQL

hql-to-sql.java

String toSQL(EntityManager em, String hql) {
    SessionImplementor hibernateSession = em.unwrap(SessionImplementor.class);
    HQLQueryPlan p = new HQLQueryPlan(hql, false, Map.of(), hibernateSession.getSessionFactory());
    if (p.getTranslators().length > 1) {
        throw new UnsupportedOperationException();
    }
    return p.getTranslators()[0].getSQLString();
}