I bump into this blog of twitter which awesomely describes Dremel paper and its implementation of Google Dremel paper. Original Google’s Paper on Dremel:http://static.googleusercontent.com/media/research.google.com/en/us/pubs/archive/36632.pdfGithub: https://github.com/Parquet/parquet-mr/labels/pick%20me%20up!more on Parquet: http://parquet.io/ Columnar storage is a popular technique to optimize analytical workloads in parallel…