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[branch-55] Fix panic on RightMark hash joins when propagating ordering (#24718) by timsaucer · Pull Request #24759 · apache/datafusion · GitHub

[branch-55] Fix panic on RightMark hash joins when propagating ordering (#24718) - #24759

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[branch-55] Fix panic on RightMark hash joins when propagating ordering (#24718)#24759
timsaucer wants to merge 1 commit into
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timsaucer:backport/pr-24718-branch-55

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This PR is a backport of #24718 onto branch-55 for the purpose of a patch release.

…4718)

## Which issue does this PR close?

- Closes apache#24717 (affecting DF 55)

## Rationale for this change

Fixes a panic in `enforce_sorting` when given a `RightMark` hash join:
`HashjoinExec::maintains_input_order` has been changed to also return
`true` on `RightMark` but `enforce_sorting` has not been updated

## What changes are included in this PR?

Adds support of `RightMark` joins to `enforce_sorting` they keep the
input sorting.
github-actions Bot added optimizer Optimizer rules core Core DataFusion crate labels Aug 28, 2026
timsaucer changed the title Fix panic on RightMark hash joins when propagating ordering (#24718) [branch-55] Fix panic on RightMark hash joins when propagating ordering (#24718) Aug 28, 2026

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@Tpt Would you mind reviewing as the original author? It was a trivial cherry pick.

timsaucer marked this pull request as ready for review August 28, 2026 14:45

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Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 81.17%. Comparing base (1a944f4) to head (16e9cae).

Additional details and impacted files
@@              Coverage Diff              @@
##           branch-55   #24759      +/-   ##
=============================================
- Coverage      81.17%   81.17%   -0.01%     
=============================================
  Files           1110     1110              
  Lines         387043   387043              
  Branches      387043   387043              
=============================================
- Hits          314186   314177       -9     
- Misses         54366    54373       +7     
- Partials       18491    18493       +2     

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