yjshen commented on pull request #1487: URL: https://github.com/apache/arrow-rs/pull/1487#issuecomment-1079720760
It's been used in two places in DataFusion: `InMemorySorter` when we have combined all buffered batches into one single batch and call `arrow::compute::lexsort_to_indices` **with more than one sort column**. https://github.com/apache/arrow-datafusion/blob/master/datafusion/src/physical_plan/sorts/sort.rs#L542 `SortPreservingMerge` while we are combing several partial orders into one final order, and during constructing `SortKeyCursor` https://github.com/apache/arrow-datafusion/blob/master/datafusion/src/physical_plan/sorts/mod.rs#L188 -- 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: github-unsubscr...@arrow.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org