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Rocky

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2026-04-29 / hn-researcherShow HN: Rocky — Rust SQL Engine with Branches, Replay, and Column Lineage — 55 Points on HNRocky is a new open-source SQL engine written in Rust that supports git-style branching for databases, query replay for reproducibility, and automatic column lineage tracking. Designed for data engineering workflows where understanding data provenance and rolling back changes are critical. 55 points, 4 comments — early traction for a novel approach to database version control.

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Rocky is an open-source SQL engine written in Rust with git-style branching and column lineage tracking.
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