Title: SQLGovernor: An LLM-powered SQL Toolkit for Real World Application
Primary area: applications to computer vision, audio, language, and other modalities
Keywords: Query Processing and Optimization; Large Language Model; Data Governance

Abstract: SQL queries in real-world analytical environments—whether written by humans or generated automatically—often suffer from syntax errors, inefficiency, or semantic misalignment, especially in complex OLAP scenarios. 
To address these challenges, we propose SQLGovernor, an LLM-powered SQL toolkit that unifies multiple functionalities—including syntax correction, query rewriting, query modification, and consistency verification—within a structured framework enhanced by knowledge management.
SQLGovernor introduces a fragment-wise processing strategy to enable fine-grained rewriting and localized error correction, significantly reducing the cognitive load on the LLM. It further incorporates a hybrid self-learning mechanism guided by expert feedback, allowing the system to continuously improve through DBMS output analysis and rule validation.
Experiments on benchmarks such as BIRD and BIRD-CRITIC, as well as industrial datasets, show that SQLGovernor consistently boosts the performance of base models by up to 10\%, while minimizing reliance on manual expertise. Deployed in production environments, SQLGovernor demonstrates strong practical utility and effective performance.