[ZGF4]

Implementing aggregation at query time is a temporary solution. For systems like this aggregation should be done on insert time - many hugely popular databases do not provide much more than a basic get operation for this reason

[etoykan]

You might be right but Mongo supports them and Microsoft says that we can start using DocumentDb without changing any line of code which is not true.

[ZGF4]

Yeah I don't get why they're marketing to Mongo users, weird choice. This is a DB for companies trying to moved to a query-less architecture - something no one should be doing with mongo

[zip1234]

I never thought about it that way but makes total sense. Clearly you 'get' it!