title: neo4j relationship type limit?
body: <p>I've created my graph with 38,000 relationship types, essentially shifting information out of properties and onto the relationship type. I've done this because for my query speed, the <code>.getProperties()</code> functions was holding me back. But now when I attempt to run my query, I instead get this:</p>
  
  <pre><code>java.lang.NullPointerException
      at org.neo4j.kernel.impl.core.NodeManager.receiveRelationships(NodeManager.java:658)
      at org.neo4j.kernel.impl.core.NodeManager.getMoreRelationships(NodeManager.java:624)
      at org.neo4j.kernel.impl.core.NodeImpl.getMoreRelationships(NodeImpl.java:400)
      at org.neo4j.kernel.impl.core.NodeImpl.loadInitialRelationships(NodeImpl.java:352)
      at org.neo4j.kernel.impl.core.NodeImpl.ensureRelationshipMapNotNull(NodeImpl.java:338)
      at org.neo4j.kernel.impl.core.NodeImpl.getAllRelationshipsOfType(NodeImpl.java:184)
      at org.neo4j.kernel.impl.core.NodeImpl.getRelationships(NodeImpl.java:269)
      at org.neo4j.kernel.impl.core.NodeProxy.getRelationships(NodeProxy.java:114)
  </code></pre>
  
  <p>I'm assuming this is related to the large number of relationship types I have, as before expanding to 38,000, I didn't have any problems. Is there any way to remedy this? Is there a place where I can see the limitations of the Relationship Types for neo4j?  </p>