We’re overhauling Dgraph’s docs to make them clearer and more approachable. If you notice any issues during this transition or have suggestions, please let us know.
The @ignorereflex directive forces the removal of child nodes that are reachable from themselves as a parent, through any path in the query result Query Example: all the co-actors of Rutger Hauer. Without @ignorereflex, the result would also include Rutger Hauer for every movie. 
{
  coactors(func: eq(name@en, "Rutger Hauer")) @ignorereflex {
    actor.film {
      performance.film {
        starring {
          performance.actor {
            name@en
          }
        }
      }
    }
  }
}