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Dialect-Agnostic SQL Parsing via LLM-Based Segmentation

Summary: SQLFlex combines grammar parsing with LLM-based clause- and expression-level segmentation, avoiding LLMs’ weaknesses on hierarchical SQL and hallucination. It robustly parses eight dialects (91.55–100%), improving linting and test-case reduction over existing tools. (summarized by gpt-5.6-luna on Jul 26 2026)

Paper ID
h281799b088e1caf1
Venue
SIGMOD
Year
2026
Pagerank
4.9769913e-05
Overall Rank
10,448 | 29.78%
DOI
10.1145/3802038
PDF
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Authors

BibTeX Citation

@inproceedings{an_sigmod26,
        title = {{Dialect-Agnostic SQL Parsing via LLM-Based Segmentation}},
        author = {An, Junwen and Mahathevan, Kabilan and Rigger, Manuel},
        series = {{SIGMOD} '26},
        booktitle = {Proceedings of the {ACM} {SIGMOD} International Conference on Management of Data},
        publisher = {Association for Computing Machinery},
        doi = {10.1145/3802038},
        url = {https://dl.acm.org/doi/10.1145/3802038},
        year = {2026}
}

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Showing 20 of 20 cited papers.

Citations counted here include only citations to other VLDB/SIGMOD/CIDR/PODS papers in this database.

Rank Cited Paper Year Venue Pagerank
118 The EXODUS Optimizer Generator 1987 SIGMOD 0.00031381726
174 Text-to-SQL Empowered by Large Language Models: A Benchmark Evaluation 2024 VLDB 0.00026787121
1,890 WeTune: Automatic Discovery and Verification of Query Rewrite Rules 2022 SIGMOD 9.4234723e-05
2,037 LLM-R^2: A Large Language Model Enhanced Rule-based Rewrite System for Boosting Query Efficiency 2025 VLDB 9.1494269e-05
2,349 The Dawn of Natural Language to SQL: Are We Fully Ready? 2024 VLDB 8.5969105e-05
2,393 A Learned Query Rewrite System using Monte Carlo Tree Search 2022 VLDB 8.5298464e-05
3,148 SQL Has Problems. We Can Fix Them: Pipe Syntax In SQL 2024 VLDB 7.5916864e-05
3,181 A Critique of Modern SQL And A Proposal Towards A Simple and Expressive Query Language 2024 CIDR 7.5603717e-05
3,900 SQLStorm: Taking Database Benchmarking into the LLM Era 2025 VLDB 6.9320915e-05
4,085 QueryBooster: Improving SQL Performance Using Middleware Services for Human-Centered Query Rewriting 2023 VLDB 6.8129946e-05
4,104 QED: A Powerful Query Equivalence Decider for SQL 2024 VLDB 6.8038041e-05
4,149 SQLCheck: Automated Detection and Diagnosis of SQL Anti-Patterns 2020 SIGMOD 6.7767951e-05
4,229 Cracking SQL Barriers: An LLM-based Dialect Translation System 2025 SIGMOD 6.7133739e-05
4,849 Explaining Wrong Queries Using Small Examples 2019 SIGMOD 6.3794032e-05
5,393 SchemaPile: A Large Collection of Relational Database Schemas 2024 SIGMOD 6.1494131e-05
5,514 Runtime-Extensible Parsers 2025 CIDR 6.0965873e-05
6,149 Sia: Optimizing Queries using Learned Predicates 2021 SIGMOD 5.8683464e-05
7,752 I-Rex: An Interactive Relational Query Explainer for SQL 2020 VLDB 5.4580039e-05
10,006 Democratize MATCH_RECOGNIZE ! 2025 VLDB 5.0954911e-05
11,553 Understanding and Reusing Test Suites Across Database Systems 2024 SIGMOD 4.9769913e-05
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