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Rocky – Rust SQL engine with branches, replay, column lineage

  • Hacker News

Hi HN, I'm Hugo. I've been building Rocky over the past month, shipping fast in the open. The binary is on GitHub Releases, `dagster-rocky` on PyPI, and the VS Code extension on the Marketplace. I held off on a broader announcement until the trust-system surface was coherent e...

  • Published: Apr 28, 2026
  • First seen: Apr 29, 2026
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AI Summary

Hi HN, I'm Hugo. I've been building Rocky over the past month, shipping fast in the open. The binary is on GitHub Releases, `dagster-rocky` on PyPI, and the VS Code extension on the Marketplace. I held off on a broader announcement until the trust-system surface was coherent e...

Best for

Teams evaluating AI product workflows / Builders comparing emerging tools / Operators tracking early category shifts

Why it matters

Primary discovery source is Hacker News.

Key Features

  • Primary public product URL is https://github.com/rocky-data/rocky.
  • Description: Hi HN, I'm Hugo. I've been building Rocky over the past month, shipping fast in the open. The binary is on GitHub Releases, `dagster-rocky` on PyPI, and the VS Code extension on the Marketplace. I held off on a broade....
  • GitHub repository is linked as rocky-data/rocky.
  • Listed on Hacker News as "Rocky – Rust SQL engine with branches, replay, column lineage".
  • Source description: Hi HN, I'm Hugo. I've been building Rocky over the past month, shipping fast in the open. The binary is on GitHub Releases, `dagster-rocky` on PyPI, and the VS Code extension on the Marketplace. I held off on a broade....

Use Cases

  • Primary discovery source is Hacker News.
  • A public GitHub repo is available for direct technical review.
  • Hacker News mention is recent (2026-04-28).
  • Primary public product URL is https://github.com/rocky-data/rocky.
  • Description: Hi HN, I'm Hugo. I've been building Rocky over the past month, shipping fast in the open. The binary is on GitHub Releases, `dagster-rocky` on PyPI, and the VS Code extension on the Marketplace. I held off on a broade....

Why Now

Rocky – Rust SQL engine with branches, replay, column lineage is appearing on fresh discovery surfaces, so it is worth reviewing while momentum is still forming. Confidence is currently medium (49/100), so treat this as an early signal rather than a settled trend.

Community Signals

Trend score

59.3

24h momentum

Rising

Hacker News points

63

Rising

Facts / Signals / Inference / Unknowns

Facts

  • Listed on Hacker News as "Rocky – Rust SQL engine with branches, replay, column lineage".
  • Source description: Hi HN, I'm Hugo. I've been building Rocky over the past month, shipping fast in the open. The binary is on GitHub Releases, `dagster-rocky` on PyPI, and the VS Code extension on the Marketplace. I held off on a broade....
  • Source publish date is 2026-04-28.
  • Description: Hi HN, I'm Hugo. I've been building Rocky over the past month, shipping fast in the open. The binary is on GitHub Releases, `dagster-rocky` on PyPI, and the VS Code extension on the Marketplace. I held off on a broade....
  • GitHub repository is linked as rocky-data/rocky.
  • Primary public product URL is https://github.com/rocky-data/rocky.

Signals

  • Hacker News mention is recent (2026-04-28).
  • A public GitHub repo is available for direct technical review.
  • Primary discovery source is Hacker News.

Inference

  • Public code access can lower evaluation friction for developer audiences.

Unknowns

  • Documentation is not explicitly linked in the current allowed evidence set.
  • No tagline is stored on the current product record.
  • Pricing details are not explicitly linked in the current allowed evidence set.
  • Recent changelog or release history is not explicitly linked in the current allowed evidence set.
  • Release cadence cannot be confirmed unless a changelog or release link is explicitly provided.

Evidence Snapshots

Rocky – Rust SQL engine with branches, replay, column lineage

Listed on Hacker News as "Rocky – Rust SQL engine with branches, replay, column lineage".

Rocky – Rust SQL engine with branches, replay, column lineage GitHub repository

GitHub repository is linked as rocky-data/rocky.

Rocky – Rust SQL engine with branches, replay, column lineage official profile

Primary public product URL is https://github.com/rocky-data/rocky.

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Original Sources

Hacker News