title: PostgresQL Query elapsed time in SELECT return
body: <p>My PostgreSQL query only returns one row and I need to include in the SELECT the amount of time it took to return.</p>
  
  <p>How do I do this?</p>
  
  <p>E.g. Table <code>hello</code></p>
  
  <pre><code>SELECT COUNT(h.*) as "count", &lt;insert query time calculation here&gt; as "elapsed_ms"
  FROM hello h;
  </code></pre>
  
  <p>Kind regards</p>