I'd phrase this differently. Once you implement Mongo in Postgres, what you have isn't a relational database. What you are taking advantage of is the incredibl

I'd phrase this differently. Once you implement Mongo in Postgres, what you have isn't a relational database. What you are taking advantage of is the incredibly solid underlying infrastructure of Pg, which provides reliability, scalability, transactions, replication, etc. But the data model itself is no longer relational from the application's perspective.