wgtmac opened a new pull request, #50157: URL: https://github.com/apache/arrow/pull/50157
### Rationale for this change Parquet column order defines how min/max statistics should be interpreted. If a reader sees an unsupported ColumnOrder, it cannot safely use chunk statistics or page index min/max values for that column. ### What changes are included in this PR? - Added an internal `ColumnOrder::UNKNOWN` state for unsupported thrift column order. - Kept missing ColumnOrder as `UNDEFINED`, preserving legacy min/max behavior. - Ignored chunk-level min/max statistics when column order or sort order is unknown. - Ignored page indexes when column order is missing/unsupported or sort order is unknown. ### Are these changes tested? Added regression tests for unsupported column order, missing column order, and page index guards. ### Are there any user-facing changes? No. -- 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]
