Compare predicates from two different nodes

Users
2

Before anything, for you case maybe you could find some info here https://docs.dgraph.io/query-language#term-matching

The idea of having the first name inside the node “family”, does not make much sense to me. Could you elaborate? If a family has multiple “Bob” how you can keep each “Bob” unique? You should create a “tree” for it oO. It is better that there is a family name then you filter by the family name you want to find.

About Var Blocks https://docs.dgraph.io/query-language/#var-blocks
About Reverse Edges https://docs.dgraph.io/query-language#reverse-edges

In that case to see what family the user is. You need to put family as “@reverse”. If the family has to be unique, you must give a single markup for each or “save/collect/keep” your UIDs in another way.

Can you try this?

{
  var(func: has(family)) {
    family  @filter(allofterms(name@en, "Bennett Russell Diaz"))  {
      ~family  {
        myVar AS uid
      }
    }
  }
  
   userWithfamily(func: uid(myVar), orderasc: name) {
    name@en
    age
    family { 
      family_name
    }
  }

}