Arunkumar Srinivasan

Anonymised Bay Area bike share trip data for the year 2014. Also contains additional metadata on stations and weather.

Fast aggregation of large data (e.g. 100GB in RAM), fast ordered joins, fast add/modify/delete of columns by group using no copies at all, list columns, friendly and fast character-separated-value read/write. Offers a natural and flexible syntax, for faster development.