title: PostgreSQL user listing
body: <p>I want to get a list of users for a certain database in psql - for example "template0". Who are the users? Or for "template1" database: - who are the users there?</p>
  
  <p>Already tried:</p>
  
  <pre><code>\du+  -- no database is Listed not Users
  Select * from "pg_users";  -- no database is listed
  </code></pre>