title: How to escape @ in hive sql?
body: <p>How to escape @ in hive sql?</p>
  
  <p>for example:</p>
  
  <pre><code>grant admin to USER presto@EXAMPLE.COM
  </code></pre>
  
  <p>will fail with error:</p>
  
  <pre><code>FAILED: ParseException line 1:26 character '@' not supported here
  </code></pre>