[SPARK-31942] Partially revert "[SPARK-31864][SQL] Adjust AQE skew join trigger condition #28770
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OK to test |
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ok to test |
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add to whitelist |
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Test build #123748 has finished for PR 28770 at commit
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cloud-fan
changed the title
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thanks, merging to master! |
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What changes were proposed in this pull request?
This reverts commit b9737c3 while keeping following changes
spark.sql.adaptive.skewJoin.skewedPartitionFactorto 5Why are the changes needed?
As discussed in #28669 (comment), revert SPARK-31864 for optimizing skew join to work for extremely clustered keys.
Does this PR introduce any user-facing change?
No.
How was this patch tested?
Existing tests.