[SPARK-35351][SQL][FOLLOWUP] Avoid using loaded variable for LEFT ANTI SMJ code-gen
#32681
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cc @viirya, @maropu and @cloud-fan, thanks. |
viirya
approved these changes
May 27, 2021
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Kubernetes integration test starting |
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Kubernetes integration test status success |
cloud-fan
approved these changes
May 27, 2021
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thanks, merging to master! |
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Test build #138992 has finished for PR 32681 at commit
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Thank you @cloud-fan and @viirya for review! |
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What changes were proposed in this pull request?
This is a followup from #32547 (comment), where for LEFT ANTI join, we do not need to depend on
loadedvariable, as incodegenAntiwe only loadstreamedAfterno more than once (i.e. assign column values from streamed row which are not used in join condition).Why are the changes needed?
Avoid unnecessary processing in code-gen (though it's just
boolean $loaded = false;, andif (!$loaded) { $loaded = true; }).Does this PR introduce any user-facing change?
No.
How was this patch tested?
Existing unite tests in
ExistenceJoinSuite.