[SPARK-45658][SQL] Fix canonicalization of DynamicPruningSubquery to canonicalize build keys relative to build query output #43737
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…gSubquery to canonicalize build keys relative to build query output
dongjoon-hyun
changed the title
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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. |
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What changes were proposed in this pull request?
Fixing the canonicalization of build keys in the DynamicPruningSubquery so that build keys are canonicalized relative to build query output.
Why are the changes needed?
I discovered this issue while working on my other PR for pushing broadcast data of BroadcastHashJoin as a pruning filter. The bug appeared as two DynamicPruningSubquery though equivalent, on canonicalization, were not matching. It turned out that the build keys expression were getting canonicalized relative to itself, instead of build query 's output.
Does this PR introduce any user-facing change?
No
How was this patch tested?
Added bug test.
Was this patch authored or co-authored using generative AI tooling?
No