apoc.refactor.mergeNodes
Procedure APOC Core
apoc.refactor.mergeNodes([node1,node2],[{properties:'overwrite' or 'discard' or 'combine'}]) merge nodes onto first in list
Usage Examples
The examples in this section are based on the following sample graph:
CREATE (n1:Person {name:'Tom'}),
(n2:Person {name:'John'}),
(n3:Company {name:'Company1'}),
(n5:Car {brand:'Ferrari'}),
(n6:Animal:Cat {name:'Derby'}),
(n7:City {name:'London'}),
(n1)-[:WORKS_FOR {since:2015}]->(n3),
(n2)-[:WORKS_FOR {since:2018}]->(n3),
(n3)-[:HAS_HQ {since:2004}]->(n7),
(n1)-[:DRIVE {since:2017}]->(n5),
(n2)-[:HAS {since:2013}]->(n6);The following merges John and Tom into a single node:
MATCH (a1:Person{name:'John'}), (a2:Person {name:'Tom'})
WITH head(collect([a1,a2])) as nodes
CALL apoc.refactor.mergeNodes(nodes,{
properties:"combine",
mergeRels:true
})
YIELD node
RETURN node;| node |
|---|
(:Person {name: ["John", "Tom"]}) |