MATCH (parentNode:LabelParticipant {uuid: "bbadf5ca-c3b2-4ee5-a373-911073456cc4"}) MATCH (childNode:LabelParticipant {uuid: "43a1b56a-0951-4f2f-b346-85256886e511"}) WITH parentNode, childNode CALL apoc.refactor.mergeNodes([parentNode, childNode], { properties: "discard", mergeRels: true } ) YIELD node RETURN 0