manuzhang opened a new pull request #28770: URL: https://github.com/apache/spark/pull/28770
### What changes were proposed in this pull request? This reverts commit https://github.com/apache/spark/commit/b9737c3c228f465d332e41f1ea0cece2a5f7667e while keeping following changes * set default value of `spark.sql.adaptive.skewJoin.skewedPartitionFactor` to 5 * tests * remove unused imports ### Why are the changes needed? As discussed in https://github.com/apache/spark/pull/28669#issuecomment-641044531, 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. ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: [email protected] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
