title: PostgreSQL - relation doesnt exist error when granting priviliges
body: <p>I entered postgres console with sudo and did this:  </p>
  
  <pre><code>create user uu with password 'uu';    
  create database u_db owner uu;   
  grant all privileges on u_db to uu;
  </code></pre>
  
  <p>Error: Relation u_db doesnt exist.</p>