Non-relational database support for the Django ORM

by Alex Gaynor for Django Software Foundation

Non-relational databases tend to support some subset of the operations that are supported on relational databases, therefore it should be possible to perform these operations on all databases. Some people are of the opinion that we shouldn't bother to support these databases, because they can't perform all operations, I'm of the opinion that the abstraction is already a little leaky, we may as well exploit this for a common API where possible.