我有以下疑问,
query1 = session.query(User.name, Info.zipCode.label('zip'))
.join(Info, User.user_id=Info.user_id)
query2 = session.query(User.name, Addr.postCode.label('zip'))
.join(Addr, User.user_id=Addr.employee_id)
query = query1.union(query2)
如何按"zip"
列排序?