title: Trying to set constraint - new primary key in table, but getting an error: column "amgettuple" does not exist (pgadmin3)
body: <p>I am creating a new table using pgadmin3 and when I click on constraints to add a primary key, I get this error:</p>
  
  <p><a href="https://i.stack.imgur.com/HK03p.png" rel="noreferrer"><img src="https://i.stack.imgur.com/HK03p.png" alt="enter image description here"></a></p>
  
  <p>I searched on google but I'm not finding this "amgettuple" issue.  Does anyone know what this means?  I am new to postgres and using pgadmin, just set it up an hour ago.</p>
  
  <p>Postgres version:  9.6</p>
  
  <p>pgadmin version: 1.22.2</p>
  
  <p>linux mint 18</p>