Selecting specific fields using select_related in Django
select_related should be use on the whole model, and then you can filter it more. This will work:
Articles.objects.select_related('blog').only('blog__name', 'title', 'create_time')
You can use annotate() for this.
>>> a = Articles.objects.annotate(blog_name=F('blog__name')).first()>>> a.title>>> a.blog_name
It can be done by adding one more field into only section, it's blog (I assume it helps Django to keep relation between objects (Article & Blog):
articles = Articles.objects.select_related( 'blog',).only( 'blog', 'blog__name', 'title', 'create_time',)Tested on Django==2.2.19