Sounds like you need a time-seres database for those sorts of narrow and deep queries :) What's difficult is to find a database that has good performance on bo

Sounds like you need a time-seres database for those sorts of narrow and deep queries :) What's difficult is to find a database that has good performance on both narrow and deep queries (e.g Price of stock X for past 5 years) as well as shallow and wide queries (e.g Price of all stocks in past 15mins)