Django Queryset: select and prefetch related.

Posted on Sat 19 August 2017 in Django • 1 min read

Today, we will learn more about Django Queryset methods select_related() and prefetch_related(). I decided to write an article after I recommended to a blogger Lucas Magnum.

While I wrote this post I see that a slogan of Lucas Magnum's blog is: (I support this idea with both hands :blush:)

Learning through sharing.

Before you start, you need to know about a problem N+1.

If you just started programming on Django framework, you need to remember:

  • select_related - forward relationship
  • prefetch_related - reverse relationship

List of links to read:

python django queryset select_related prefetch_related