An aggregation framework for Microsoft's Azure DocumentDB NoSQL database
The bad news: DocumentDB does not include aggregation capability.
The good news: DocumentDB includes stored procedures and documentdb-lumenize uses this to add aggregation capability that far exceeds that which you are used to with SQL.
As Michael Stonbraker, genius creator of not one but three wildly successful databases . . .
Mock for testing Stored Procedures in Microsoft Azure's DocumentDB