title: Query GRANTS granted to a sequence in postgres
body: <p>To query GRANTS granted to a table I can use a query like:</p>
  
  <pre><code>SELECT grantee, privilege_type 
  FROM information_schema.role_table_grants 
  WHERE table_name='mytable'
  </code></pre>
  
  <p>(see my old question here: <a href="https://stackoverflow.com/questions/7336413/query-grants-for-a-table-in-postgres">Query grants for a table in postgres</a>)</p>
  
  <p>But how I query the GRANTS grated to a sequence?</p>