MATCH (masterNode:LabelParticipant {uuid: "b2ce9109-d275-4472-9bcd-7fa4dbf23ad1"}) MATCH (childNode:LabelParticipant {uuid: "21c8aa2b-2f14-4cef-84e7-27d4f5f8bed5"}) WITH masterNode, childNode CALL apoc.refactor.mergeNodes([masterNode, childNode], { properties: "discard", mergeRels: true } ) YIELD node RETURN 0