VeriEQL: Bounded Equivalence Verification for Complex SQL Queries with Integrity Constraints
Yang He,
Pinhan Zhao,
Xinyu Wang
et al.
Abstract:The task of SQL query equivalence checking is important in various real-world applications (including query rewriting and automated grading) that involve complex queries with integrity constraints; yet, state-of-the-art techniques are very limited in their capability of reasoning about complex features (e.g., those that involve sorting, case statement, rich integrity constraints, etc.) in real-life queries. To the best of our knowledge, we propose the first SMT-based approach and its implementation, VeriEQL, c… Show more
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