Comment by blksv

Rows are tuples, not objects, and treated as such throughout the code. Only the needed data is selected in the form most appropriate to the task at hand, constructed in a hand-written sql query, maybe even taylored to the DB/task specifics. Inserts/updates are also specific to the task, appropriately grouped, and also performed using plain sql. Data pipelines are directly visible in the code, all DB accesses are explicit.