xuyangzhong opened a new pull request, #27111: URL: https://github.com/apache/flink/pull/27111
## What is the purpose of the change **Note: this is a draft pr that depends on https://github.com/apache/flink/pull/27099.** Join with the following pattern can be converted to delta join: 1. All two cdc sources output changelog mode without delete 2. Pks of these two cdc sources all contain join key, and then upstream nodes of join do not require sending update before ## Brief change log - Support to optimize to delta join when join can match the optimization pattern. - Add UT, IT and Harness test for this optimization. ## Verifying this change Tests are added to verify this pr ## Does this pull request potentially affect one of the following parts: - Dependencies (does it add or upgrade a dependency): no - The public API, i.e., is any changed class annotated with `@Public(Evolving)`: no - The serializers: no - The runtime per-record code paths (performance sensitive): no - Anything that affects deployment or recovery: JobManager (and its components), Checkpointing, Kubernetes/Yarn, ZooKeeper: no - The S3 file system connector: no ## Documentation - Does this pull request introduce a new feature? no - If yes, how is the feature documented? -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
