CloverDew opened a new pull request, #11025: URL: https://github.com/apache/seatunnel/pull/11025
### Purpose of this pull request This PR adds CDC schema change support for comment-related DDL. Related issue: https://github.com/apache/seatunnel/issues/10776 **Main changes:** - Add API-level schema change event types for table comment and column comment changes: AlterTableCommentEvent, AlterColumnCommentEvent - Extend schema change dispatching and event metadata for the new comment events. - Extend CDC DDL parsing/resolution so comment-only table DDL can be emitted as a schema change event, while column comment changes embedded in column DDL continue to flow through column schema events. - Add sink-side routing/no-op handling for connectors that currently do not apply comment events directly. - Add MySQL CDC E2E coverage for comment-related DDL with normal data changes, including savepoint/restore coverage. ### Does this PR introduce _any_ user-facing change? Yes. After this PR, can parse and represent table comment and column comment changes in the CDC schema-change model. For sinks that do not support applying comments, these events are routed as no-op schema changes so the CDC pipeline can continue processing data normally. ### How was this patch tested? Updated tests include: - MySQL CDC E2E schema-change tests covering comment DDL with concurrent data changes. - MySQL CDC schema-change savepoint/restore coverage for comment DDL. - New DDL resource: `comment_changes.sql`. - Updated CDC schema resolver/parser tests, including Oracle parser coverage affected by the shared schema-change resolver logic. ### Check list * [ ] If any new Jar binary package adding in your PR, please add License Notice according [New License Guide](https://github.com/apache/seatunnel/blob/dev/docs/en/developer/new-license.md) * [ ] If necessary, please update the documentation to describe the new feature. https://github.com/apache/seatunnel/tree/dev/docs * [ ] If necessary, please update `incompatible-changes.md` to describe the incompatibility caused by this PR. * [ ] If you are contributing the connector code, please check that the following files are updated: 1. Update [plugin-mapping.properties](https://github.com/apache/seatunnel/blob/dev/plugin-mapping.properties) and add new connector information in it 2. Update the pom file of [seatunnel-dist](https://github.com/apache/seatunnel/blob/dev/seatunnel-dist/pom.xml) 3. Add ci label in [label-scope-conf](https://github.com/apache/seatunnel/blob/dev/.github/workflows/labeler/label-scope-conf.yml) 4. Add e2e testcase in [seatunnel-e2e](https://github.com/apache/seatunnel/tree/dev/seatunnel-e2e/seatunnel-connector-v2-e2e/) 5. Update connector [plugin_config](https://github.com/apache/seatunnel/blob/dev/config/plugin_config) -- 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]
