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

Re:Show HN: Rocky – Rust SQL engine with branches, replay, c... by hugocorreia90 on Wednesday April 29, 2026 @06:44AM (#47946488)

Fair point. Databricks owns a scheduling DAG (Workflows, DLT). What I meant by "owns the DAG" is the semantic DAG: model-to-model dependencies with column-level types that the compiler builds.

Workflows knows task A runs before task B. Rocky knows `dim_customer.email` flows from `raw_users.email_address` through three CTEs in `stg_customers`. Different layer, same word.

I'll be more careful with that framing.

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Re:Show HN: Rocky – Rust SQL engine with branches, replay, c... by onlyrealcuzzo on Wednesday April 29, 2026 @12:34PM (#47950768)

> I'll be more careful with that framing.

I think you should also try to do a better job selling the benefit of this.

As a data engineer, I can see why this might be useful, but glancing through your README, the dots were not completely connected

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Re:Show HN: Rocky – Rust SQL engine with branches, replay, c... by hugocorreia90 on Wednesday April 29, 2026 @01:31PM (#47951591)

Make sense. Reviewing the README is on my TODO list. Thanks for the heads up!

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