You can write a function to do partial updates, and it wouldn't be any different than if it was in core. If you're using Amazon RDS they include PLV8 to make it

You can write a function to do partial updates, and it wouldn't be any different than if it was in core. If you're using Amazon RDS they include PLV8 to make it even easier. :D Here's someone building functions for a MongoDB API on top of Postgres 9.2. I'm glad the MongoDB API isn't in core, but they've laid the ground work so you can easily build whatever you want. [1] http://legitimatesounding.com/blog/building_a_mongodb_clone_in_postgres_part_1.html http://legitimatesounding.com/blog/building_a_mongodb_clone_... http://legitimatesounding.com/blog/building_a_mongodb_clone_in_postgres_part_2.html http://legitimatesounding.com/blog/building_a_mongodb_clone_...