title: Set read-only for only 1 table in postgresql
body: <p>I want to set read only for only 1 table in a database. 
  I tried the command </p>
  
  <pre><code>ALTER TABLE table SET READ ONLY;
  </code></pre>
  
  <p>but it doesn't work.</p>
  
  <p>Is there anyway to do that?</p>