Flink CDC 1.2.0 vs 2.0.0: Key Differences and Upgrades - Apache Flink

Flink CDC 1.2.0 and 2.0.0 are two versions of Apache Flink's Change Data Capture (CDC) connector. Here are some of the key differences between them: \n\n1. Apache Flink 2.0.0 is the latest version of Flink CDC, offering a range of new features and improvements over 1.2.0.\n\n2. Stream SQL Support: Flink CDC 2.0.0 introduces support for streaming SQL queries, allowing users to query streaming data using SQL statements.\n\n3. Enhanced State Management: Flink CDC 2.0.0 provides improved state management capabilities, offering a more efficient and robust state management mechanism.\n\n4. Expanded Connectors and Formatters: Flink CDC 2.0.0 includes a broader selection of connectors and formatters, making it easier for users to interact with various data sources.\n\n5. Optimized Task Scheduling and Resource Management: Flink CDC 2.0.0 features enhancements to task scheduling and resource management mechanisms, leading to more efficient and scalable job execution.\n\n6. Improved Scalability and Fault Tolerance: Flink CDC 2.0.0 optimizes Flink's scalability and fault tolerance, resulting in better performance and stability.\n\nOverall, Flink CDC 2.0.0 offers significant advancements over 1.2.0, providing enhanced performance, stability, and expanded support for SQL queries and diverse data sources. Therefore, it is highly recommended to use the latest version of Flink CDC whenever possible.