title: Unrecognized Config Parameter "bytea_output" pgAdmin 4
body: <p>I'm trying to connect pgAdmin Version 4 to an existing Postgres instance. Previously I was using pgAdmin 3 and it was working fine. I'm not sure what I might be doing wrong.  I have the following configurations:</p>
  
  <p><a href="https://i.stack.imgur.com/Uj29q.png"><img src="https://i.stack.imgur.com/Uj29q.png" alt="enter image description here"></a></p>
  
  <p>Not sure what I could be missing.</p>
  
  <p>I get the error below:</p>
  
  <blockquote>
    <p>Unable to connect to server:</p>
    
    <p>ERROR: unrecognized configuration parameter "bytea_output"</p>
  </blockquote>