aihuaxu opened a new issue, #47838: URL: https://github.com/apache/arrow/issues/47838
### Describe the bug, including details regarding any error messages, version, and platform. According to the [Variant specification](https://github.com/apache/parquet-format/blob/master/VariantEncoding.md), the specification_version field must be set to 1 to indicate Variant encoding version 1. Currently, this field defaults to 0, which violates the specification. Parquet readers that strictly enforce specification version validation will fail to read files containing Variant types. <img width="1248" height="370" alt="Image" src="https://github.com/user-attachments/assets/c15b95b6-a987-44d4-8eb5-b2a20862f5b3"; /> ### Component(s) C++ -- 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]
