title: Does hive have a data dictionary?
body: <p>Does hive have a data dictionary? 
  I am trying to fetch the column names of tables in hive.
  Similar to oracle query other than describe command:</p>
  
  <pre><code>SELECT COLUMN_NAME,DATA_TYPE FROM USER_TAB_COLUMNS
  WHERE TABLE_NAME = ? ORDER BY COLUMN_ID;
  </code></pre>