[NewsReader42]

I don't know where to start with your ramblings.

1. Don't use an ODM - MongoDB is scheme-loose for a reason yet you want to lock in a schema with a mapper????? 2. Go use PostGres if you're that worried about so called schema rot else write migration scripts like everyone else.

There is always a price to pay for flexibility and scalability

[giaour]

1. Sometimes, you have to work on someone else's code and deal with the decisions they made years ago. In fact, it's how developers spend the vast majority of their time.

2. See above.

Postgres in my experience has proven far more scalable than Mongo, and the price of "flexibility" is unreliability.