title: JOIN in Hive triggers which type of JOIN in MapReduce?
body: <p>If I have a query in <code>hive</code> which employs JOIN, lets say a <code>LEFT OUTER JOIN</code> or an <code>INNER JOIN</code> on two tables <code>ON</code> any column, then how do I know which type of JOIN is it getting converted into in the back-end <code>MapReduce</code> (i.e. Map-side JOIN or Reduce-side JOIN) ?  </p>
  
  <p>Thanks.</p>