note: according to this https://groups.google.com/forum/#!topic/sqlalchemy/ZTevy2g7pOg
yield_per should not be used with eager loading: 1. it is useless with subquery 2. can lead to different results with joinedload
note: according to this https:/ /groups. google. com/forum/ #!topic/ sqlalchemy/ ZTevy2g7pOg
yield_per should not be used with eager loading:
1. it is useless with subquery
2. can lead to different results with joinedload