title: How to make hive return rows faster? (say, limit 10)
body: <p>I noticed that when MR is involved, even for simply queries like: </p>
  
  <pre><code>select * from table where condition_a and condition_b limit 10;
  </code></pre>
  
  <p>Hive will scan all the data (sure), but it will only return when all the MR jobs finish, even we only need 10 results. </p>
  
  <p>Is there a way to tell hive just return the first 10 rows, then skip the result of the job?</p>
  
  <p>Note, I am taking about when MR job is involved, not for the simple case where no actual MR job is created. </p>
  
  <p>Thanks! </p>