kou commented on PR #45561: URL: https://github.com/apache/arrow/pull/45561#issuecomment-2684146843
> One thing I got from `MakeStatisticsArray` in RecordBatch is that it seems that the following attribute is mandatory > > https://github.com/apache/arrow/blob/6f1cbc31976f58da2f9d0323ccf0560df230f4e8/cpp/src/arrow/record_batch.cc#L496 > > Thus, I think it's better to categorize Standard statistics to mandatory and non mandatory type. Although only one attribute is mandatory now, it maybe increase to more attribute There is no mandatory statistics. `MakeStatisticsArray()` always sets `ARROW_STATISTICS_KEY_ROW_COUNT_EXACT` just because row count is always available in a record batch. It's an implementation specific behavior. It's not a specification. -- 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]
