MATCH (masterNode:LabelParticipant {uuid: "79a9f722-7e71-4f5a-a252-bb22f3626076"}) MATCH (childNode:LabelParticipant {uuid: "593c7261-be53-4691-b34c-fbe6ba5a9e37"}) WITH masterNode, childNode CALL apoc.refactor.mergeNodes([masterNode, childNode], { properties: "discard", mergeRels: true } ) YIELD node RETURN 0