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[SPARK-39402][SQL] Optimize ReplaceCTERefWithRepartition to support coalesce partitions#36790

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wangyum wants to merge 1 commit intoapache:masterfrom
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[SPARK-39402][SQL] Optimize ReplaceCTERefWithRepartition to support coalesce partitions#36790
wangyum wants to merge 1 commit intoapache:masterfrom
wangyum:SPARK-39402

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@wangyum wangyum commented Jun 7, 2022

What changes were proposed in this pull request?

Optimize ReplaceCTERefWithRepartition to support coalesce partitions. For example:

Before this PR After this PR
image image

Why are the changes needed?

Reduce the overhead of shuffle as much as possible.

Does this PR introduce any user-facing change?

No.

How was this patch tested?

Unit test.

@github-actions github-actions bot added the SQL label Jun 7, 2022
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wangyum commented Jun 8, 2022

cc @maryannxue @cloud-fan

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We're closing this PR because it hasn't been updated in a while. This isn't a judgement on the merit of the PR in any way. It's just a way of keeping the PR queue manageable.
If you'd like to revive this PR, please reopen it and ask a committer to remove the Stale tag!

@github-actions github-actions bot added the Stale label Sep 18, 2022
@github-actions github-actions bot closed this Sep 19, 2022
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