展示 HN：Rocky – Rust SQL 引擎，具有分支、重放、列谱系功能。

展示 HN：Rocky – Rust SQL 引擎，具有分支、重放、列谱系功能。
Show HN: Rocky – Rust SQL engine with branches, replay, column lineage

原始链接: https://github.com/rocky-data/rocky

Rocky是一个基于Rust的控制平面，旨在为数据仓库管道带来信任和安全性（兼容Databricks & Snowflake）。它专注于数据质量和可靠性，通过诸如**编译时安全性**、**列级别血缘**以及**自动模式漂移检测与恢复**等功能，防止静默数据损坏。主要功能包括：在数据写入*之前*强制执行的**数据契约**、使用命名分支进行**无风险实验**，以及带有内置验证循环的**AI驱动的模型生成**。Rocky提供CLI并与Dagster和VS Code等工具集成。它专为本地开发而设计，使用DuckDB（游乐场无需凭据），并提供全面的文档和示例。Rocky是免费且开源的，旨在通过提供强大的错误检测和清晰的数据血缘，改进数据管道的开发和维护。你可以在GitHub上找到它：[https://github.com/rocky-data/rocky](https://github.com/rocky-data/rocky)。

## Rocky：基于Rust的数据仓库控制平面 Hugo Correia推出了Rocky，一个全新的开源Rust引擎，旨在管理数据仓库管道（目前支持Databricks、Snowflake、BigQuery和DuckDB）。与数据仓库本身不同，Rocky专注于拥有*数据管道图*——依赖关系、类型、血缘和治理——这些功能在现有堆栈中常常缺失。主要特性包括**分支与重放**，为仓库数据提供类似Git的工作流程，**列级别血缘**由编译器直接跟踪，以及强大的**治理**工具，如列分类、遮蔽策略和审计跟踪。Rocky还提供**成本归因**和**编译时可移植性**检查，跨不同的仓库方言。它与Dagster等工具集成用于编排，并且不打算取代现有的数据加载工具，如Fivetran。该项目最近在v1.16.0和v1.17.4版本中实现了全面的治理功能，并正在寻求反馈，尤其是在其信任系统框架和治理界面方面。

原文

The trust system for your data. A Rust-based control plane for warehouse pipelines: branches, replay, column-level lineage, compile-time safety, per-model cost attribution. Keep Databricks or Snowflake. Bring Rocky for the DAG.

# macOS / Linux
curl -fsSL https://raw.githubusercontent.com/rocky-data/rocky/main/engine/install.sh | bash

# Windows (PowerShell)
irm https://raw.githubusercontent.com/rocky-data/rocky/main/engine/install.ps1 | iex

rocky playground my-first-project
cd my-first-project
rocky compile && rocky test && rocky run

No credentials needed — the playground runs end-to-end on local DuckDB.

Each demo below is a self-contained POC in examples/playground/pocs/ — cd in, run ./run.sh, reproduce locally.

Detects schema drift the moment it happens

A source column type changes upstream. On the next run, Rocky diffs source vs. target, drops the target, and recreates it. No silent data corruption, no dbt-style quiet divergence.

POC — 02-performance/06-schema-drift-recover

Enforces data contracts at compile time

Missing required columns, protected columns being removed, or unsafe type changes surface as diagnostic codes (E010, E013) before a single row is written.

POC — 01-quality/01-data-contracts-strict

Named branches for risk-free experiments

Create a branch, run against it in an isolated schema, inspect, then drop or promote. Column-level lineage shows the downstream blast radius before you ship.

POC — 00-foundations/06-branches-replay-lineage

Column-level lineage, not table-level

Trace a single column from a downstream fact back through its aggregations, all the way to the seed. Blast-radius analysis without reading every model.

POC — 06-developer-experience/01-lineage-column-level

AI model generation with a compile-validate loop

Describe what you want in plain English. Rocky generates a Rocky DSL model, compiles it, and retries on parse failure — the Attempts: 2 line shows the loop catching a first-pass error invisibly.

POC — 03-ai/01-model-generation

Path	Artifact	Language	Description
`engine/`	`rocky` CLI binary	Rust	Core SQL transformation engine — 20-crate Cargo workspace
`integrations/dagster/`	`dagster-rocky` PyPI wheel	Python	Dagster resource and component wrapping the Rocky CLI
`editors/vscode/`	Rocky VSIX	TypeScript	VS Code extension — LSP client + commands for AI features
`examples/playground/`	(config only)	TOML / SQL	Self-contained DuckDB sample pipeline used for smoke tests and benchmarks

Each subproject has its own README with detailed usage. The engine/README.md is the canonical product reference for the Rocky CLI.

git clone https://github.com/rocky-data/rocky.git
cd rocky
just build       # builds engine + dagster wheel + vscode extension
just test        # runs all test suites
just lint        # cargo clippy/fmt + ruff + eslint

just is optional — you can also build each subproject directly. See CONTRIBUTING.md for per-subproject build commands.

Each artifact is released independently using a tag-namespaced scheme:

engine-v* → Rocky CLI binary (cross-compiled, on GitHub Releases)
dagster-v* → dagster-rocky wheel
vscode-v* → Rocky VSIX

See CONTRIBUTING.md for the full release flow.

Full documentation: rocky-data.dev — concepts, guides, CLI reference, Dagster integration, adapter SDK.

See CONTRIBUTING.md. Before opening a PR, please read the cross-project change guidance — schema and DSL changes must update consumers atomically.

Rocky is free and open source. If it saves your team time, consider sponsoring the project so development can continue.

Apache 2.0