Show HN: Rocky – Rust SQL engine with branches, replay, column lineage

Git for your data pipelines, basically. Rocky is a Rust-built SQL engine that adds branching, time-travel replay, and column-level lineage on top of your queries. Hugo shipped a VS Code extension, a Dagster integration, and a trust system in about a month — that's a serious pace. Column lineage alone is something that enterprise data teams pay thousands for in legacy tooling, and here it's baked into an open-source engine. The branching model is what stands out: test transformations on a branch before you wreck production data, then merge. If you're building data products, running dbt-style pipelines, or tired of lineage being a bolted-on afterthought, Rocky is worth a serious look. Still early but the architecture ambition is high and the Rust foundation suggests it's built to be fast. -> Best for: Data engineers and SaaS founders who want Git-style safety and observability baked into their SQL pipelines without paying enterprise prices.