<h1>Tencent Cloud's Distributed Database Tech Revolutionizes Schema Changes with Multi-Version Management and Parallel Processing</h1> A distributed database technology developed by Tencent Cloud introduces innovative online schema change mechanisms for databases. The solution addresses performance bottlenecks in traditional single-node systems by implementing multi-version schema management, advanced concurrency control, and distributed parallel processing. Key innovations include rapid metadata modifications, improved transaction handling, and accelerated data ingestion, enabling zero-downtime schema changes in large-scale financial systems with significantly reduced execution times.