How will Google's Dremel change future Hadoop releases?Answer (1 of 7): The architecture of Dremel is quite similar to the architecture of Pig and Hive. All three have a columnar layout for persistent data [7], a metadata repository, a query execution engine, a physical planner, a logical planner, and a query parser for a higher-level query language....
https://infoscience.epfl.ch/record/149436/files/vldb10aether.pdf
