MATCH (masterNode:LabelParticipant {uuid: "81115063-6ab0-4afe-823f-c81cce2dcc9a"}) MATCH (childNode:LabelParticipant {uuid: "86b0d5c3-6f20-4120-b094-02accc7a4762"}) WITH masterNode, childNode CALL apoc.refactor.mergeNodes([masterNode, childNode], { properties: "discard", mergeRels: true } ) YIELD node RETURN 0