title: Calcite is unable to map cassandra column of type map having frozen set
body: <p>I want to query Cassandra table using calcite. I am able to query other tables but I want to query table: </p>
  
  <pre><code>cyclist_teams1(id uuid PRIMARY KEY, firstname text, lastname text, teams map&lt;text, frozen&lt;set&lt;text&gt;&gt;&gt;)
  </code></pre>
  
  <p>When I query:</p>
  
  <pre><code>select * from "cyclist_teams1"
  </code></pre>
  
  <p>It is showing correct output for columns id, firstname, lastname but giving <strong>null</strong> value for <strong>teams</strong> column.</p>
  
  <p>Can anyone help me in querying this table using calcite? Is there anything which needs to be done and I have missed?</p>
  
  <p>Thanks in advance!</p>