Training a 4B model to produce 81% faster query plans than Postgres
polyphilz · hn · 2026-09-17
- Author fine-tuned a 4B-parameter model with RL to generate database query execution plans
- Resulting plans run 81% faster than Postgres's optimizer output
- Demonstrates LLM+RL tackling a classic systems optimization problem
- HN discussion debates whether general models can outperform specialized optimizers
原文
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