Zouxxyy opened a new pull request, #7789: URL: https://github.com/apache/paimon/pull/7789
### Purpose - Support write merge schema in MERGE INTO: when `write-merge-schema` is enabled, commit schema changes from source to the Paimon table before action alignment, allowing `alignMergeIntoTable` to see the full merged schema including new columns - Naturally supports nested struct evolution through the pre-merge schema approach - Move `AssignmentAlignmentHelper` from spark3 to spark-common for reuse across Spark versions - Refactor `SchemaHelper.scala` to better handle schema resolution during MERGE INTO - Add `MergeIntoNotMatchedBySourceTest` and expand `MergeIntoTableTestBase` with comprehensive MERGE INTO test cases ### Tests - `MergeIntoNotMatchedBySourceTest` for NOT MATCHED BY SOURCE clauses - `MergeIntoTableTestBase` with 408+ lines of comprehensive MERGE INTO test coverage -- 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]
