@Test
public void hhh12999TupleLeftJoin() throws Exception {
	Session s = openSession();
	Transaction tx = s.beginTransaction();

	Parent parentWithoutChild = new Parent();
	parentWithoutChild.setId( 1L );

	Parent parentWithChild = new Parent();
	parentWithChild.setId( 2L );
	Child child = new Child();
	child.id = 123L;
	parentWithChild.setChild(child);

	s.persist(parentWithChild.getChild());
	s.persist(parentWithChild);
	s.persist(parentWithoutChild);

	s.flush();

	CriteriaBuilder cb = s.getCriteriaBuilder();

	CriteriaQuery<Tuple> cq = cb.createQuery( Tuple.class );
	Root<Parent> parentRoot = cq.from( Parent.class );
	Join<Child, Parent> childJoin = parentRoot.join( "child", JoinType.LEFT );

	cq.multiselect( parentRoot.get( "id" ), childJoin );

	TypedQuery<Tuple> typedQuery = s.createQuery( cq );
	List<Tuple> result = typedQuery.getResultList();

	assertEquals( 2, result.size() );

	assertEquals(2L, result.get( 0 ).get( 0 ));
	Child childEntity = (Child) result.get( 0 ).get( 1 );

	assertEquals(123L, (long) childEntity.id);

	tx.rollback();
	s.close();
}

select
	ormunittes0_.id as col_0_0_,
	ormunittes1_.id as col_1_0_,
	ormunittes1_.id as id1_0_ 
from
	Parent ormunittes0_ 
left outer join
	Child ormunittes1_ 
		on ormunittes0_.child_id=ormunittes1_.id