I have a model like Main as shown below

class Main(models.Model):
        Timestamp = models.DateTimeField(auto_now=True)
        name = models.CharField(max_length=100)
        .........................
        .........................

Main.objects.filter(id=1).update(name="abc") is updating the Timestamp to current datetime 但是当我使用mysql查询时 UPDATE Main SET name="abc" WHERE id=1 没有将Timestamp更新为当前的Datetime

Note: 我只想使用mysql查询 .

有谁知道怎么做?