MATCH (masterNode:LabelParticipant {uuid: "57a34b96-5ddd-4903-8624-65f3dd8cbd06"}) MATCH (childNode:LabelParticipant {uuid: "c591e479-69bc-447b-9489-9c2cd406aada"}) WITH masterNode, childNode CALL apoc.refactor.mergeNodes([masterNode, childNode], { properties: "discard", mergeRels: true } ) YIELD node RETURN 0