title: neo4j find all nodes with matching properties
body: <p>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 value is.  This is basically an attempt to find duplicate nodes, but I can limit the definition of a duplicate to two or more nodes that have the same property value.  </p>
  
  <p>Any ideas how to proceed? Not finding any starting points in the neo4j docs.  I'm on 1.8.2 community edition.</p>
  
  <p><strong>EDIT</strong><br>
  Sorry for not being clear in the initial question, but I'm talking about doing this through Cypher.</p>