Story
Building SQLite with a small swarm
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Overview
Claude, Codex, and Gemini built a SQLite-like engine in Rust, comprising approximately 19,000 lines of code. The implementation includes a parser, planner, volcano executor, pager, B-trees, write-ahead logging, recovery, joins, aggregates, indexing, transaction semantics, grouped aggregates, and statistics-aware planning, with 282 passing unit tests.
Summary from kiankyars.github.io.
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kiankyars.github.io
Building SQLite with a small swarm
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Community reactions
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Hacker News · kiankyars.github.io
Historical count: 5 · 5 saved in sample · Historical sample
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Based on 5 sampled comments from this thread. Analyzed 2026-02-16.
- Praise: SQLite's extensive test coverage demonstrates a high standard of quality, which sets a benchmark for any new implementations attempting to replicate its functionality.
- Concern: The new codebase lacks the quality and performance of SQLite, with many basic elements missing or poorly implemented, raising concerns about its viability.
- Concern: The approach of brute-forcing a version of SQLite through knowledge compression seems inefficient and unlikely to yield a functional product.
- Concern: Prioritizing speed over correctness in parallel code execution could lead to significant errors, undermining the reliability of the database transactions.