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GH-35268:[C++] Support spillover for order by in Acero #35898

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GH-35268:[C++] Support spillover for order by in Acero #35898

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@R-JunmingChen R-JunmingChen commented Jun 3, 2023 •
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Rationale for this change
This is a dfrat PR for issue 35268. We plan to utilize external merge sort to support spillover.

What changes are included in this PR?
Add external_order_by_node.

  • Sort and write data to disk
  • Read data back
  • Merge sorted data
  • Testing

Are these changes tested?
No.

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@westonpace westonpace Awaiting requested review from westonpace westonpace will be requested when the pull request is marked ready for review westonpace is a code owner

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[C++] OrderBy with spillover
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