title: How Do You "Permanently" Delete An Experiment In Mlflow?
body: <p>Permanent deletion of an experiment isn't documented anywhere. I'm using Mlflow w/ backend postgres db</p>
  
  <p>Here's what I've run: </p>
  
  <pre><code>client = MlflowClient(tracking_uri=server)
  client.delete_experiment(1)
  </code></pre>
  
  <p>This deletes the the experiment, but when I run a new experiment with the same name as the one I just deleted, it will return this error:</p>
  
  <pre><code>mlflow.exceptions.MlflowException: Cannot set a deleted experiment 'cross-sell' as the active experiment. You can restore the experiment, or permanently delete the  experiment to create a new one.
  </code></pre>
  
  <p>I cannot find anywhere in the documentation that shows how to permanently delete everything.</p>