Probability-Gated Adaptive Reward Shaping

SPA: A SQL-Plan-Aware Reinforcement Learning Framework for Query Rewriting with LLMs

arXiv:2606.08620v1 Announce Type: new Abstract: SQL query rewriting is a well-established technique for improving database performance without schema or index changes, yet finding effective rewrites for modern analytical workloads remains difficult: rule-based methods are limited to predefined transformations, while LLM-based approaches often produce rewrites that are semantically valid but compile to equivalent physical plans or degrade runtime performance. We present SPA, a SQL-Plan-Aware...