JPA only executes first select statement in union?

Question

I\'ve written a JPQL statement that unions multiple select statements, each of which selects a different string constant. A simplified version of the query would look somet

Answer 1

JPQL has no such concept as UNION. So consequently any "query" that has it is not JPQL and so ought to be rejected as invalid JPQL (which DataNucleus JPA certainly would do)