Important! Please use this feature only when strictly necessary, otherwise it is very easy to end-up with large schemas with dozens of different associations polluting your schema and affecting your application performance. For instance, if you are using associations only for different querying purposes, then it is preferable to build and compose queries, rather than defining multiple associations:
posts
|> Ecto.assoc(:comments)
|> Comment.deleted()Or when preloading:
from posts, preload: [comments: ^Comment.deleted()]