title: Fire SQL Trigger only when a particular user update the row
body: <p>There is a trigger in postgres that gets called whenever a particular table is updated. 
  It is used to send updates to another API.</p>
  
  <p>Is there a way one can control the firing of this trigger?
  Sometimes when I update the table I don't want the trigger to be fired. How do I do this?
  Is there a silence trigger sql syntax?</p>
  
  <p>If not</p>
  
  <p>Can I fire triggers when a row is updated by PG user X and when PG user Y updates the table no trigger should be fired?</p>