Dremel, the engine behind google's bigQuery
dremel: google's interactive analysis system (big data search engine)
how i got here
- presto query engine -uses-> parquet files (which is an open source implementation of column data structure) -inspired by-> dremel
the urls to read to get familiar with it:
repetition and definition levels
https://medium.com/@pallerlaakshay/wrapping-head-around-repetition-and-definition-levels-in-dremel-powering-bigquery-c1a33c9695da
parquet:
dremel: