There are JSON and JSONB types that can store JSON, in one can make tables that are simply a PK and a JSON column. There are function/option wrappers around thi

There are JSON and JSONB types that can store JSON, in one can make tables that are simply a PK and a JSON column. There are function/option wrappers around this type to in place update a JSON field. Syntax is well different than Mongo. Can get a relational-JSON store which Mongo don't really have. I used to use Mongo along side the PG for the JSON store but now am back all on PG with this JSONB type.