Here's the logged Hibernate query from the test case:

{{ select
pet0_.id as col_0_0_,
pet0_.name as col_1_0_,
pet0_2_.felineProperty as col_2_0_,
pet0_3_.canineProperty as col_3_0_
from
Pet pet0_
left outer join
Bunny pet0_1_
on pet0_.id=pet0_1_.ID
inner join
Cat pet0_2_
on pet0_.id=pet0_2_.ID
inner join
Dog pet0_3_
on pet0_.id=pet0_3_.ID}}