single inh criteria should be added for select_from()
Issue #3891
resolved
in test_single:
def test_select_from_inherited_tables(self):
Manager, Engineer, Employee = (self.classes.Manager, self.classes.Engineer, self.classes.Employee)
sess = create_session()
m1 = Manager(name='Tom', manager_data='data1')
e1 = Engineer(name='Kurt', engineer_info='knows how to hack')
sess.add_all([m1, e1])
sess.flush()
eq_(
sess.query(func.count(1)).select_from(Manager).all(),
[(1, )]
)
need to say func.count(Manager.employee_id) for now
Comments (2)
-
reporter -
reporter - changed status to resolved
Consult _select_from_entity in _adjust_for_single_inheritance
Fixed bug in single-table inheritance where the select_from() argument would not be taken into account when limiting rows to a subclass. Previously, only expressions in the columns requested would be taken into account.
Change-Id: Id353c45eade52b264d8f6685a58ba53975669eea Fixes:
#3891→ <<cset b6a6ffa4c0e0>>
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https://gerrit.sqlalchemy.org/288