Microsoft Open-Sources Document Database Built on PostgreSQL

In a surprising move, Microsoft has launched an open-source document database platform built on a relational PostgreSQL backend. The fully open-source platform, requiring no commercial licensing fees, suggests using the open-source FerretDB as a front-end. This signifies Microsoft's increased embrace of open source and offers a new option for the NoSQL database community. The database leverages two PostgreSQL extensions: pg_documentdb_core (optimizing BSON) and pg_documentdb_api (implementing CRUD and query operations). FerretDB 2.0 integrates with it, boasting a significant performance boost, with up to 20x speed improvements for certain workloads. This move is poised to challenge existing document databases like MongoDB.