https://github.com/citguru/openduck
Article
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OpenDuck attempts to replicate MotherDuck’s differential storage and hybrid query execution
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Implements query federation with a gateway node distributing queries across DuckDB instances
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Early-stage / proof-of-concept; author acknowledges it’s not production-ready
Discussion
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Author confirmed goal is replicating MotherDuck’s approach using open techniques
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One commenter built a similar system with OpenRaft for full Raft consensus replication instead
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Code reviewed as likely AI-generated one-shot output; interesting case study but not production
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Apache DataFusion + datafusion-federation suggested as a more mature alternative
Discuss on HN