title: UTC_TIMESTAMP() VS. CONCAT(UTC_DATE(), ' ', UTC_TIME())
body: <p>Are <code>UTC_TIMESTAMP ()</code> and <code>CONCAT (UTC_DATE (), '', UTC_TIME ())</code> functionally identical?</p>
  
  <p><strong>EDIT:</strong></p>
  
  <p>When I tested it, <code>UTC_TIMESTAMP()</code> does not return a UNIX TIMESTAMP. (with MariaDB 10.x)
  <a href="https://i.stack.imgur.com/T4Qtt.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/T4Qtt.png" alt="enter image description here"></a></p>