title: Trees in CouchDB
body: <p>I'm new to CouchDB and have a question.</p>
  
  <p>I'm saving messages with the ID of the parent message as an attribute.
  A message can also have a childMessage as parent, so it looks like a tree.</p>
  
  <p>How can i query all childs including the childs of the childs?</p>
  
  <p>Thank you</p>