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Diff-SQL：SQL效率优化框架与Effi-SQL基准

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Diff-SQL 是一个面向 SQL 效率优化的两阶段框架。根据最新报道，该框架将面向效率的优化与约束感知对齐解耦：先以统一 diff 补丁提出针对性修改，再用 on-policy 强化学习在可执行与语义等价约束下修正输出。该报道发布于 arXiv，领域标注为 Information Retrieval，属一手来源。此前关于 Effi-SQL 基准的具体内容在本次提供的报道中未出现新信息。

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LatestOct 7
Diff-SQL 提出两阶段框架：统一 diff 补丁修改加 on-policy 强化学习约束对齐。

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Oct 7, 2026
  1. arXiv · Information Retrieval
    Diff-SQL：通过补丁生成与约束对齐优化 SQL 效率

    Diff-SQL 是一个两阶段框架，将面向效率的优化与约束感知对齐解耦，先以统一 diff 补丁提出针对性修改，再用 on-policy 强化学习在可执行与语义等价约束下修正输出。

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