Any particular reason why ORC was chosen as the columnar store format over Parquet (https://github.com/Parquet/parquet-format https://github.com/Parquet/parquet

Any particular reason why ORC was chosen as the columnar store format over Parquet (https://github.com/Parquet/parquet-format https://github.com/Parquet/parquet-format)? Reason I ask is because Parquet seems to have its own development cycle, roadmap, and is pretty continuously updated with enhancements.