JPQL EXISTS clauses do not handle subclasses properly
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Key: OPENJPA-508
URL: https://issues.apache.org/jira/browse/OPENJPA-508
Project: OpenJPA
Issue Type: Bug
Affects Versions: 1.0.1, 1.0.0
Reporter: Patrick Linskey
Fix For: 1.0.2, 1.1.0
The following code does not properly add subclass indicators to the generated
SQL query:
StringRootEntity e = new StringRootEntity();
e.setName("foo");
em.persist(e);
e = new StringRootEntity();
e.setName("foo");
em.persist(e);
e = new StringRootEntity();
e.setName("bar");
em.persist(e);
em.flush();
Query q = em.createQuery("select o from StringAbstractEntity o " +
"where exists (select o2 from StringLeafEntity o2)");
List<StringAbstractEntity> list = q.getResultList();
assertEquals(0, list.size());
The assertion at the end fails; 3 results are returned, even though there are
no SingleLeafEntity instances in the store.
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