Takes a set of connected tables and a list of feature descriptions and automatically assembles a dataframe containing those features.
Feature descriptions are strings like:
TIME_SINCE_SEEN(lineitem.SUM(quantity|DATE(order.date),order.customer))
virtualenv venv -p python3.7
feat/globals
List of manipulation functions.
TIME_SINCE(Customer{customer=id}.created_at) works, but TIME_SINCE(customer.created_at) fails.
https://github.com/tensorflow/tensorflow/blob/master/tensorflow/python/framework