title: Azure Application Insights selecting first occurrence of event with name in session
body: <p>I want to select a first occurring  <code>customEvents</code> for given name for in session</p>
  
  <p>Following query gives the first event by session</p>
  
  <p>customEvents
     | summerize min(timestamp) by session_Id</p>
  
  <p>But it only returns <code>timestamp</code> and <code>session_Id</code></p>
  
  <p>How to get other properties also?</p>