_is_null for views

[Sorix]

It is possible to create manual views that may be nil (e.g. object that may reference to your table). But there is no way to check that view with _is_null in where condition clause.

{
  article(where: {
    author: {
      # That currently is not possible, we can check againts subitems only for view here
      # There is no way to check if it is null
      # Even if we check author.name == NULL, that check won't be executed
      _is_null: true
    }
  }) {
    author {
      name
    }
}

[0x777]

This is how you check if 'there exists an author':

{
  article(where: {
    author: {}
  }) {
    author {
      name
    }
}

I you want to fetch articles which don't have an author:

{
  article(where: {
    _not: {author: {}}
  }) {
    author {
      name
    }
}