title: How to write query results in impala to a CSV file with JDBC Driver
body: <p>Using Impala JDBC driver, is it possible to write query results to a CSV file?</p>
  
  <p>OR is impala-shell the only way to achieve this? </p>
  
  <p>What are the security/performance side-effects of calling impala-shell from a web application?</p>
  
  <p>Thanks.</p>