Zouxxyy opened a new issue, #11803: URL: https://github.com/apache/gluten/issues/11803
### Backend VL (Velox) ### Bug description # Description Velox parquet writer unconditionally sets all struct fields as OPTIONAL (nullable), even when Spark schema specifies REQUIRED. This breaks Spark's variant binary format validation. Root cause: RowType has no nullability → exportToArrow() sets ARROW_FLAG_NULLABLE on all fields → Arrow Parquet Writer writes OPTIONAL → Spark convertVariantField expects REQUIRED → error. # Affected tests SPARK-47546: valid variant binary SPARK-47546: invalid variant binary ### Gluten version _No response_ ### Spark version None ### Spark configurations _No response_ ### System information _No response_ ### Relevant logs ```bash ``` -- 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]
