Django列在创建大小写或大写列名时不存在错误

class uretimkaynaklari(models.Model):

    tarih = models.DateField()
    malzemeNo = models.CharField(max_length=30)
    operasyonKodu = models.CharField(max_length=30)
    isyeri = models.CharField(max_length=30)
    vardiya = models.CharField(max_length=30)
    sicil = models.CharField(max_length=30)
    uretimMiktari = models.FloatField()
    uretimSuresiMakina = models.FloatField()
    uretimSuresiIscilik = models.FloatField()

    def __str__(self):
        return self.sicil


def operatoranalizi_func(request):

    cursor = connection.cursor()
    cursor.execute("""SELECT id as id, tarih as tarih, sicil as sicil, uretimSuresiMakina as uretimSuresiMakina
            FROM operatoranalizi_uretimkaynaklari """)
    rows = cursor.fetchall()
    print(rows)
    return HttpResponse("success")

当?仅获取“id”、“tarih”、“isyeri”列时一切正常,但当?想要获取“uretimsuresimakina”列时?获取错误列不存在。