source: https://github.com/seandst/relational-pulp/blob/master/db-transcription-guide.md
Relational Pulp Translation Guide
Introduction
Converting from mongo to postgres should be recognized from the outset as a monumental task. In choosing Django as our ORM, this task has hopefully been made a little bit easier by bringing in such a mature and well-supported framework. Great care has been taken to make full use of Django's offerings when coming up with techniques and guidelines for converting our non-relational mongo