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AI Engineering
Hacker News·27d ago·5 min read
Postgres rewritten in Rust, now passing 100% of the Postgres regression tests
TL;DR
pgrust, a new implementation of Postgres written in Rust, has successfully passed all 46,000 regression tests for Postgres 18.3. This project aims to enhance the internal architecture of Postgres while maintaining compatibility with existing data.
✦ Why It Matters
Developers can experiment with pgrust to implement and test new features in a safer, more efficient environment.
Key Takeaways
- Explore pgrust for safer database modifications.
- Utilize Rust's features to enhance Postgres functionality.
- Test new features using pgrust's regression test framework.
- Transition smoothly from Postgres 18.3 to pgrust without data loss.
Full Summary
Postgres, a widely used relational database, has been reimplemented in Rust under the project name pgrust. This new version is designed to be fully compatible with Postgres 18.3, passing over 46,000 regression tests to ensure it produces the same output as the original. pgrust is disk compatible, meaning it can boot from an existing Postgres 18.3 data directory, facilitating a smooth transition for users.
The project aims to make internal changes to Postgres easier by using Rust's safety features and AI-assisted programming techniques. The successful passing of all regression tests indicates that pgrust can serve as a reliable alternative for developers looking to innovate within the Postgres ecosystem.
This approach not only preserves the expected behavior of Postgres but also opens up new possibilities for enhancements.