Building an Open Source MongoDB-compatible Database on Top of PostgreSQL
summary
Claims an open source MongoDB-compatible backend that accepts unmodified MongoDB clients and stores data in PostgreSQL, implemented as a Go proxy translating the wire protocol into SQL and using postgres jsonb. Current build is v0.2 and already runs an app called la assistant; the project reports 4.4k GitHub stars and ~30 contributors. Compatibility choices trade performance for correctness: some queries fetch all then sort in Go to match MongoDB semantics, with integration tests that compare responses to MongoDB.
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chapters (4)
- 0:00Start
- 7:08We think that there is a need for an open-source alternative to MongoDB, and it needs to be compatible with the existing MongoDB ecosystem.
- 7:34A MongoDB compatible interface • Set out to become the de facto MongoDB Alternative Can be used on-prem or in the cloud Can utilize various RDBMS as backend (PgSQL for now) • Released under a pure Open Source license, Apache 2.0
- 9:06MongoDB compatibility means that all of the existing elements of the MongoDB Ecosystem (tools, frameworks and applications) will be possible to use with FerretDB, without any modification.
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