mattcasters commented on PR #7539: URL: https://github.com/apache/hop/pull/7539#issuecomment-4995114984
## Lake Table metadata injection (MDI) Follow-up for complex multi-table / CDC-style work: **all four Lake Table transforms are now metadata-injection capable**. ### What - `@HopMetadataProperty(injectionKey=…)` on Input, Output, Merge, Maintenance - Input field projection group `FIELDS` (`NAME`, `TYPE`, `LENGTH`, `PRECISION`, `FORMAT_MASK` via `SparkField`) - Unit tests: `SparkLakeTable*MetaInjectionTest` (4 tests, green) - Docs: each transform page + lakehouse guide + samples README ### Shared inject keys `FORMAT`, `IDENTIFIER_MODE`, `TABLE_PATH`, `TABLE_IDENTIFIER`, `CATALOG_METADATA_NAME` Plus transform-specific keys (save mode, merge condition/actions, OPTIMIZE/VACUUM params, …) listed on the transform docs. ### Pattern Template lake pipeline → **ETL Metadata Injection** maps rows from a control/source pipeline → run under **Native Spark**. -- 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]
