title: golang pq sql driver: pq: invalid input syntax for type uuid error type
body: <p>I'm trying to handle Postgres error.
  If user sends invalid uuid - Postgres returns an error with message: <code>pq: invalid input syntax for type uuid:...</code></p>
  <p>So, i want to check that error and if the error equals to the invalid input syntax error - i would like to show to the client 404 error, rather than returning server error.</p>
  <p>But i can't find the defined error type for the returned error in Postgres library...</p>
  <p>Can someone suggest me, where is the error returned?</p>