X-Lemon-X opened a new pull request, #47394:
URL: https://github.com/apache/arrow/pull/47394
Rationale for this change
Lack of multi threading inputs support (batches were incoming not in
order if they were ordered) with nodes like SortedMergeNode, previously
resolved by disabling multi threading when using them.
What changes are included in this PR?
- added sequencer to all inputs of SortedMergeNode
- added back pressure support for the SortedMergeNode.
Are these changes tested?
Yes
Are there any user-facing changes?
Yes. Users of those node must assert ordering on input where appropriate.
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