Django：按评论数量排序

我正试图按评论的数量来排列django中的项目列表。然而，似乎有一个问题，Count函数没有考虑到django注释也使用content_type_id来区分不同对象的注释

这给了我一个小问题，使用标准方法时，所有对象的注释计数都是错误的；是否有一个“好的”修复程序，或者我需要回到原始sql

尝试并确定正确顺序的代码：

app_list = App.objects.filter(published=True)
.annotate(num_comments=Count('comments'))
.order_by('-num_comments')

查询注释的示例输出未提及内容类型id：

SELECT "apps_app"."id", "apps_app"."name", 
"apps_app"."description","apps_app"."author_name", "apps_app"."site_url", 
"apps_app"."source_url", "apps_app"."date_added", "apps_app"."date_modified", 
"apps_app"."published", "apps_app"."published_email_sent", "apps_app"."created_by_id", 
"apps_app"."rating_votes", "apps_app"."rating_score", COUNT("django_comments"."id") AS      
"num_comments" FROM "apps_app" LEFT OUTER JOIN "django_comments" ON ("apps_app"."id" = 
"django_comments"."object_pk") WHERE "apps_app"."published" = 1 GROUP BY 
"apps_app"."id", "apps_app"."name", "apps_app"."description", "apps_app"."author_name", 
"apps_app"."site_url", "apps_app"."source_url", "apps_app"."date_added", 
"apps_app"."date_modified", "apps_app"."published", "apps_app"."published_email_sent", 
"apps_app"."created_by_id", "apps_app"."rating_votes", "apps_app"."rating_score" ORDER 
BY num_comments DESC LIMIT 4

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我想我找到了答案：