How to set func to null

[musiciansLyf]

@amaster507

Var Blocks for Better Performance

Alternatively, you can only touch the two nodes that you need at the root level by using var blocks to get the uids of the specific nodes. The uid function accepts a list of ids or variables in a single function. This list acts as an any of logic, so this exact syntax would not work to get nodes that intersect between two variables.

{
  var var1(func: eq(identity_id, "test_1_lyf00824"))
  var var2(func: eq(identity_id, "269783243924963328"))
  sourceNodes(func: uid(var1, var2)) {
    uid
    namespace
    # other predicates/edges
  }
}

Pros: More efficient. Touches only the nodes expected.
Cons: Can be more complex to create dynamically. Only works with OR logic ATM.

Yes, thank you for your guidance.