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Hive ORCFile format

Here is a great presentation about new Hive ORC file format (Optimized Record Columnar file)

If you check out Hive 0.11, you can find the ORCFile codes in this package

org/apache/hadoop/hive/ql/io/orc

As for information about the RCFile (Record Columnar File), you can take a look at the following paper.

http://www.cse.ohio-state.edu/hpcs/WWW/HTML/publications/papers/TR-11-4.pdf

 

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