title: In CloudWatch Insights, how do I filter out log entries that don't have a parsed value?
body: <p>Suppose I have the following Insights query</p>
  
  <pre><code>fields @timestamp, @message
  | parse @message 'status=*" as status
  | display @timestamp, status, @message
  </code></pre>
  
  <p>Some log messages don't have a status. I'd like to filter those out. How do I do that?</p>