Cosette
An automated solver for proving the equivalence of SQL queries using formal verification.
What is Cosette?
Cosette is an automated solver and language for formally proving the equivalence of SQL queries. It uses verification techniques to determine whether two SQL queries always return the same results, solving a fundamental problem in database theory and practice. This tool helps ensure correctness in query optimization, refactoring, and data transformation workflows.
Database researchers, developers working on query optimizers, and data engineers who need to verify SQL transformations for correctness, performance, or compliance.
Cosette provides a unique, research-driven approach to SQL equivalence verification, offering automated proofs that eliminate guesswork and manual testing. Its formal foundation ensures reliable results for complex queries where traditional methods may fail.
Overview
Cosette is an automated SQL solver.
Use Cases
Best For
- Verifying the correctness of SQL query optimizations
- Proving equivalence between legacy and refactored SQL code
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