DocumentDB (open-source, PostgreSQL-based) vs MongoDB
DocumentDB (open-source, PostgreSQL-based): MIT-licensed, MongoDB-compatible document engine built as PostgreSQL extensions, run by the Linux Foundation. MongoDB: The default document database: flexible BSON documents, rich queries and built-in sharding.
key differences
- Licensing: DocumentDB (open-source, PostgreSQL-based) is open source (permissive) (MIT License); MongoDB is source-available (Server Side Public License v1 (Community); commercial (Enterprise)).
- MongoDB is built for larger datasets (≤ 1 PB) than DocumentDB (open-source, PostgreSQL-based) (≤ 10 TB).
- Horizontal scaling is none in DocumentDB (open-source, PostgreSQL-based) and native in MongoDB.
- Only MongoDB has change data capture, materialized views, in-memory, compression, encryption at rest.
choose documentdb-postgres for
- +Self-hosted MongoDB-compatible database without SSPL
- +Migrating MongoDB apps onto PostgreSQL infrastructure
- +Document plus vector storage for RAG on Kubernetes
- +Local development matching Azure DocumentDB
best at · OLTP, Content, Vector search
choose mongodb for
- +Product catalogs with highly variable attributes
- +Content management and user-generated content
- +Mobile and web backends that evolve their schema weekly
- +IoT and event data with time-series collections
best at · OLTP, Content, Metadata
DocumentDB (open-source, PostgreSQL-based) vs MongoDB: FAQ
What is the difference between DocumentDB (open-source, PostgreSQL-based) and MongoDB?
DocumentDB (open-source, PostgreSQL-based): MIT-licensed, MongoDB-compatible document engine built as PostgreSQL extensions, run by the Linux Foundation. MongoDB: The default document database: flexible BSON documents, rich queries and built-in sharding. Licensing: DocumentDB (open-source, PostgreSQL-based) is open source (permissive) (MIT License); MongoDB is source-available (Server Side Public License v1 (Community); commercial (Enterprise)). MongoDB is built for larger datasets (≤ 1 PB) than DocumentDB (open-source, PostgreSQL-based) (≤ 10 TB). Horizontal scaling is none in DocumentDB (open-source, PostgreSQL-based) and native in MongoDB.
When should I choose DocumentDB (open-source, PostgreSQL-based) over MongoDB?
Choose DocumentDB (open-source, PostgreSQL-based) for self-hosted MongoDB-compatible database without SSPL, migrating MongoDB apps onto PostgreSQL infrastructure and document plus vector storage for RAG on Kubernetes. Choose MongoDB for product catalogs with highly variable attributes; content management and user-generated content; and mobile and web backends that evolve their schema weekly.
Is DocumentDB (open-source, PostgreSQL-based) or MongoDB more popular?
MongoDB ranks #4 on the WhichDB Score (80.5/100) and DocumentDB (open-source, PostgreSQL-based) ranks #386 (5.4/100). Popularity is not fit: check the requirements that matter for your project.
Are DocumentDB (open-source, PostgreSQL-based) and MongoDB open source?
Yes. DocumentDB (open-source, PostgreSQL-based) is open source. License: MIT License. Not in the OSI sense. MongoDB is source-available: you can read the code, but the license restricts some uses, typically offering it as a competing managed service. License: Server Side Public License v1 (Community); commercial (Enterprise).