title: Setting transactional-table properties results in external table
body: <p>I am creating a <em>managed table</em> via <code>Impala</code> as follows:</p>
  <pre class="lang-sql prettyprint-override"><code>CREATE TABLE IF NOT EXISTS table_name
      STORED AS parquet
      TBLPROPERTIES ('transactional'='false', 'insert_only'='false')
      AS ...
  </code></pre>
  <p>This should result in a <code>managed table</code> which does not support <code>HIVE-ACID</code>.
  However, when I run the command I still end up with an external table.
  Why is this?</p>