[GLUTEN-10605][VL] Rewrite unbounded window to an equivalent aggregate join#10606
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zml1206 merged 2 commits intoapache:mainfrom Sep 5, 2025
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[GLUTEN-10605][VL] Rewrite unbounded window to an equivalent aggregate join#10606zml1206 merged 2 commits intoapache:mainfrom
zml1206 merged 2 commits intoapache:mainfrom
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@JkSelf What do you think of this feature? It should make up for some of the current shortcomings of Velox Window. |
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LGTM. Thanks for your improving.
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@JkSelf Thanks for review, merge into main. |
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…e join (apache#10606) (cherry picked from commit 84ac418)
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…aggregate join (apache#10606)" This reverts commit 17755bf.
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…e join (apache#10606) (cherry picked from commit 84ac418)
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What changes are proposed in this pull request?
For unbounded window, velox needs to load the entire partition's data into memory for calculation, which can easily cause OOM when the partition is too large. This rule rewrites unbounded window to an equivalent aggregate join operation to avoid OOM.
Input query:
Rewritten query:
How was this patch tested?
UT