branch-4.2: [refactor](local shuffle) Move local exchange planning from BE to FE #63366 #64793 #65348 #65129 #66295 #66570 #67177 #67941 - #68199

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auto-pick-local-shuffle-branch-4.2

Commits on Sep 18, 2026

branch-4.2: [refactor](local shuffle) Move local exchange planning from BE to FE #63366
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a5d2023
branch-4.2: [opt](local shuffle) bucket-shuffle dest spreading + bucket-to-hash parallelism upgrade #64793
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ed70649
branch-4.2: [fix](local shuffle) address all receiver instances for a non-serial exchange #65348
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a672e5a
branch-4.2: [opt](local shuffle) support bucket shuffle for set operation #65129
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9414d10
branch-4.2: [fix](local shuffle) make set operation and analytic advertise the placement their input really is on #66295
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branch-4.2: [fix](local shuffle) Require hash input for distinct finalize agg without group keys #66570
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5b69818
branch-4.2: [fix](local shuffle) Prevent row loss at parallel-to-serial pipeline boundaries #67177
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125d029
branch-4.2: [fix](local shuffle) Populate distribution keys for select nodes #67941
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837e903