[feat](nereids) add rewrite rule :EliminateGroupByKeyByUniform (#43391)#45075
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morrySnow merged 2 commits intoapache:branch-3.0from Dec 10, 2024
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…e#43391) This PR introduces two main changes: 1. Adds an optional constant value to the uniform attribute in DataTrait. A slot with a constant value that is not null will be considered uniform and not null. 2. Introduces a new transform rule: EliminateGroupByKeyByUniform, which utilizes the newly added part of the uniform attribute. Following is example transformation: from +--aggregate(group by a,b output a,b,max(c)) (a is uniform and not null: e.g. a is projection 2 as a in logicalProject) to +--aggregate(group by b output b,any_value(a) as a,max(c))
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run buildall |
TPC-H: Total hot run time: 40614 ms |
TPC-DS: Total hot run time: 194843 ms |
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run buildall |
TPC-H: Total hot run time: 40643 ms |
TPC-DS: Total hot run time: 195818 ms |
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run cloud_p0 |
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cherry-pick #43391 to branch-3.0