Jackie-Jiang opened a new pull request #5760: URL: https://github.com/apache/incubator-pinot/pull/5760
## Description Enhance DataTypeTransformer to handle nested Collection/Map/Object[] - Empty `Collection/Map/Object[]` will be treated as `null` - Single-entry `Collection/Map/Object[]` will be treated as single-value (map key is ignored) - Multi-entry `Collection/Map/Object[]` will be treated as multi-value (map key is ignored) - Move `NullValueTransformer` after `DataTypeTransformer` to handle the `null` from empty `Collection/Map/Object[]` NOTE: Multi-entry `Collection/Map/Object[]` will no longer be accepted for single-value column (instead of using the first value because that will cause data loss) ---------------------------------------------------------------- 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. For queries about this service, please contact Infrastructure at: us...@infra.apache.org --------------------------------------------------------------------- To unsubscribe, e-mail: commits-unsubscr...@pinot.apache.org For additional commands, e-mail: commits-h...@pinot.apache.org
