xushiyan commented on issue #1480: [SUPPORT] Backwards Incompatible Schema Evolution URL: https://github.com/apache/incubator-hudi/issues/1480#issuecomment-609466504 @vinothchandar Yes the exporter tool can be used for this purpose, with some changes. It currently supports copying Hudi dataset as is. With this migration use case, we could extend the feature to include transformation when `--output-format hudi`, using a custom `Transformer`. Though MOR is a bit troublesome with log files conversions, we could start with COW tables support? Does this work for your case? @symfrog As for splitting/merging usecases, something feasible as well; some more logic to implement for exporter to take multiple source/target paths. Also some efforts to support multiple datasets in `Transformer` interface. @vinothchandar Are my thoughts above aligned with yours?
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