
Well, not the product, but the brand. If you’ve followed me for a while, you know I love covering all kinds of databases and data stores. Back in 2014, Microsoft announced Azure DocumentDB, a NoSQL database for storing, using, and maintaining data in JSON documents. Then three years later, the added more data store models and rebranded it Azure Cosmos DB. This new service added a ton of capabilities like global distribution and query languages. Examples are APIs for MongoDB, Graph and Key Value models. One can still see remnants of the original name in code, even.
This is the underlying database for Cosmos DB’s document database.
A Local Database
Earlier this year, Microsoft announced a new DocumentDB not in the cloud, but local.
We are excited to announce the official release of DocumentDB—an open-source document database platform and the engine powering the vCore-based Azure Cosmos DB for MongoDB, built on PostgreSQL.
The mission for DocumentDB is to provide the developer community with a NoSQL datastore, implemented using PostgreSQL with complete visibility into the architecture and implementation of the engine. All the core components of the database engine from CRUD (Create, Read, Update, Delete) operations to indexing and vector search functionality are public. Moreover, PostgreSQL has seen a meteoric rise in popularity with its continuously evolving feature set and rich ecosystem of extensions. We decided to launch DocumentDB—a fully open-source platform powered by PostgreSQL on which an end-to-end document database experience can be built, to meet the community’s NoSQL database needs.
Resources for DocumentDB Database
Upcoming Events to Learn More

I’d love to hear from PostgreSQL fans about this.
No responses yet