neo4j find all nodes with matching properties

Question

I have a relatively large set of nodes, and I want to find all pairs of nodes that have matching property values, but I don\'t know or care in advance what the property valu

Answer 1

You can try this one who does which I think does whatever you want.

START n=node(*), m=node(*)
WHERE 
  HAS(n.name) AND HAS (m.name) AND 
  n.name=m.name AND 
  ID(n) 

http://console.neo4j.org/?id=xe6wmt

Both nodes should have a name property. name should be equal for both nodes and we only want one pair of the two possibilites which we get via the id comparison. Not sure about performance - please test.