slavlotski opened a new pull request, #4606: URL: https://github.com/apache/datafusion-comet/pull/4606
## Which issue does this PR close? Add a (MapType, MapType) arm to CometCast.isSupported that recursively checks key and value type compatibility, mirroring the existing Struct → Struct and Array → Array handling. Previously every Map → Map cast fell back to Spark even though native cast_map_to_map (which already handles the Parquet `key_value` vs Spark `entries` field-name difference) was in place. Closes #4491 ## How are these changes tested? <!-- We typically require tests for all PRs in order to: 1. Prevent the code from being accidentally broken by subsequent changes 2. Serve as another way to document the expected behavior of the code If tests are not included in your PR, please explain why (for example, are they covered by existing tests)? --> -- 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] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
