title: How do you use ORCFile Input/Output format in MapReduce?
body: <p>I need to implement a custom I/O format based on ORCFile I/O format. How do I go about it? </p>
  
  <p>Specifically I would need a way to include the ORCFile library in my source code (which is a custom Pig implementation) and use the ORCFile Output format to write data, and later use the ORCFile Input format to read back the data. </p>