Given two csv files Donors.csv and Donations.csv. The task is to calculate overall amount of donations for each USA state. Calculations cannot be done in-memory because files are too large.
Donors.csv - https://www.kaggle.com/hanselhansel/donorschoose?select=Donors.csv
Donations.csv - https://www.kaggle.com/hanselhansel/donorschoose?select=Donations.csv