[hibernate-issues] [Hibernate-JIRA] Commented: (HHH-4787) AuditProperty.isNull() doesn't generate "tab.col is null" SQL clause as expected
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http://opensource.atlassian.com/projects/hibernate/browse/HHH-4787?page=c...
]
Eric Citaire commented on HHH-4787:
-----------------------------------
This single test fail :
(tested in org.hibernate.envers.test.integration.query.SimpleQuery integration test)
{noformat}
@Test
public void testEntitiesIsNullQuery() {
EntityManager em = getEntityManager();
em.getTransaction().begin();
StrIntTestEntity site = new StrIntTestEntity(null, 10);
em.persist(site);
Integer id = site.getId();
em.getTransaction().commit();
StrIntTestEntity ver = (StrIntTestEntity) getAuditReader().createQuery()
.forEntitiesAtRevision(StrIntTestEntity.class, 2)
.add(AuditEntity.id().eq(id))
.add(AuditEntity.property("str1").isNull())
.getSingleResult();
assert ver.equals(new StrIntTestEntity(null, 10, id2));
}
{noformat}
AuditProperty.isNull() doesn't generate "tab.col is
null" SQL clause as expected
--------------------------------------------------------------------------------
Key: HHH-4787
URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-4787
Project: Hibernate Core
Issue Type: Bug
Components: envers
Affects Versions: 3.3.0.GA
Environment: Hibernate 3.3.0.GA, Envers 1.2.2, HSQLDB Database
Reporter: Eric Citaire
Priority: Critical
AuditProperty.isNull() generate a SQL condition like this :
"tab.col=?"
where the bind variable is mapped to a null value.
This doesn't work : most database engines will return false in every case.
It should use the "is null" test instead :
"tab.col is null"
http://en.wikipedia.org/wiki/SQL#Null_and_Three-Valued_Logic_.283VL.29
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