如果我比较日期时间，Django的str(queryset.query)返回无效的SQL

from datetime import date
from django.db.models import Q

# 假设你想查询创建日期为今天的记录
today = date.today()
queryset = MyModel.objects.filter(created_at__date=today)

from datetime import time
from django.db.models import Q

# 假设你想查询创建时间在某个时间范围内的记录
start_time = time(9, 0, 0)  # 开始时间
end_time = time(18, 0, 0)  # 结束时间
queryset = MyModel.objects.filter(created_at__time__range=(start_time, end_time))

from datetime import date, time
from django.db.models import Q

today = date.today()
start_time = time(9, 0, 0)  # 开始时间
end_time = time(18, 0, 0)  # 结束时间
queryset = MyModel.objects.filter(
    Q(created_at__date=today) & Q(created_at__time__range=(start_time, end_time))
)