While you’re not wrong re: Postgres and MySQL not being necessarily designed for PB-scale, IME many shops with huge datasets are just doing it wrong. Storing nu

While you’re not wrong re: Postgres and MySQL not being necessarily designed for PB-scale, IME many shops with huge datasets are just doing it wrong. Storing numbers as strings, not using lookup tables for low-cardinality data, massive JSON blobs everywhere, etc. I’m not saying it fixes everything, but knowing how a DB works, and applying proper data modeling and normalization could severely reduce the size of many datasets.