title: Is allowDiskUse valid for find() method in mongodb?
body: <p>I am trying to test some theories on slow running queries - hence I <em>want</em> my query to run slow.  For this reason I have ommited indexes on my collection.  When I run <code>db.mycollection.find({myfield: /.abc./}).sort({myfield2: 1}, {allowDiskUse: true})</code> method I receive the following error...</p>
  
  <pre><code>Error: error: {
          "ok" : 0,
          "errmsg" : "Executor error during find command: OperationFailed: Sort operation used more than the maximum 33554432 bytes of RAM. Add an index, or specify a smaller limit.",
          "code" : 96,
          "codeName" : "OperationFailed"
  }
  </code></pre>
  
  <p>OK fine.  I want to continue to sort on disk, but it seems the aggregate framework command 'allowDiskUse:' does nothing on the find() method.  I receive the same error.</p>
  
  <p>Is the 'allowDiskUse' valid when used with find() or is it only valid when used with the Aggregation Framework?  </p>
  
  <p>I can't seem to find any documentation that states it is framework specific but then again, it doesn't seem to work with find().  Maybe that's a loose answer.  I guess I am seeking a more concrete answer.</p>