def _execute_and_instances(self, querycontext):
    conn = self._connection_from_session(mapper=self._mapper_zero_or_none(), clause=querycontext.statement, close_with_result=True)
    result = conn.execute(querycontext.statement, self._params)
    return loading.instances(self, result, querycontext)
def _execute_and_instances(self, querycontext):
    conn = self._connection_from_session(mapper=self._mapper_zero_or_none(), clause=querycontext.statement, close_with_result=True)
    result = conn.execute(querycontext.statement, self._params)
    return loading.instances(self, result, querycontext)