PolySI & Tesseract: New Black‑Box Tools for Snapshot Isolation & Schema Evolution
Tencent Cloud, in collaboration with Nanjing University, ETH Zurich, and Simon Fraser University, presented two VLDB‑2023 papers introducing PolySI, a black‑box checker for snapshot isolation, and Tesseract, an online, transactional schema‑evolution technique, both demonstrating superior performance and practical impact on modern cloud databases.