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

Rocky is an open-source Rust-based control plane that adds enterprise data governance capabilities—including column-level lineage, schema drift detection, data contracts enforcement, and cost attribution—to existing data warehouses like Databricks and Snowflake without replacing them. For IT organizations, this addresses critical gaps in data pipeline visibility and reliability by catching data quality issues at compile-time rather than in production, while enabling safer experimentation through branching and replay features. The tool integrates with existing orchestration platforms like Dagster, reducing deployment friction and allowing teams to strengthen data governance incrementally.