WeTune: Automatic Discovery and Verification of Query Rewrite Rules
Summary: WeTune automatically discovers rewrite rules by enumerating relational plans up to a size, proposing equivalent rewrites. SMT-based verifier checks equivalence under enumerated constraints; on GitHub-app SQL, 247 queries are optimized beyond standard DBs. (summarized by gpt-5-nano on Feb 09 2026)
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Authors
- 1. Zhaoguo Wang (Chinese Ministry of Education; Shanghai Jiao Tong University)
- 2. Zhou Zhou (Chinese Ministry of Education; Shanghai Jiao Tong University)
- 3. Yicun Yang (Chinese Ministry of Education; Shanghai Jiao Tong University)
- 4. Haoran Ding (Chinese Ministry of Education; Shanghai Jiao Tong University)
- 5. Gansen Hu (Chinese Ministry of Education; Shanghai Jiao Tong University)
- 6. Ding Ding (New York University)
- 7. Chuzhe Tang (Chinese Ministry of Education; Shanghai Jiao Tong University)
- 8. Haibo Chen (Chinese Ministry of Education; Shanghai Jiao Tong University)
- 9. Jinyang Li (New York University)
BibTeX Citation
@inproceedings{wang_sigmod22,
title = {{WeTune: Automatic Discovery and Verification of Query Rewrite Rules}},
author = {Wang, Zhaoguo and Zhou, Zhou and Yang, Yicun and Ding, Haoran and Hu, Gansen and Ding, Ding and Tang, Chuzhe and Chen, Haibo and Li, Jinyang},
series = {{SIGMOD} '22},
booktitle = {Proceedings of the {ACM} {SIGMOD} International Conference on Management of Data},
publisher = {Association for Computing Machinery},
doi = {10.1145/3514221.3526125},
url = {https://dl.acm.org/doi/10.1145/3514221.3526125},
year = {2022}
}
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