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PostgreSQL is the world's most advanced open-source database, but scaling it for massive concurrent workloads poses significant challenges. In this session, we introduce PolarDB, a cloud-native relational database compatible with PostgreSQL. We will explore its unique architecture, which features the separation of compute and storage, allowing for minute-level elasticity and massive storage scalability. Attendees will learn how this shared-storage architecture eliminates data duplication, reduces replication lag, and enables Hybrid Transactional/Analytical Processing (HTAP) to handle high-concurrency scenarios efficiently.