当我按日期或月份或两者同时过滤DateField时：
today = date.today()
birthday = Paziente.objects.filter(natoil__month=today.month, natoil__day=today.day)
模型
class Paziente(models.Model):
natoil = models.DateField(blank=True, null=True)
给出错误：
OperationalError at /
user-defined function raised exception
请帮助 Django 1.11.4