sqlalchemy:从表中获取max/min/avg值

I have this query:

我有这个查询:

mps =   (
            session.query(mps)  .filter_by(idc = int(c.idc))
                                .filter_by(idmp = int(m.idmp))
                                .group_by(func.day(mps.tschecked))
        ).all()
mps =   (