MATCH (masterNode:LabelParticipant {uuid: "5d1a02a5-e7f0-45f8-aff2-d9b2d0bdbdd1"}) MATCH (childNode:LabelParticipant {uuid: "e03420b5-991a-4f1e-9656-788c3fd94fbe"}) WITH masterNode, childNode CALL apoc.refactor.mergeNodes([masterNode, childNode], { properties: "discard", mergeRels: true } ) YIELD node RETURN 0