caican00 opened a new pull request, #42003: URL: https://github.com/apache/spark/pull/42003
### What changes were proposed in this pull request? Supports automatic processing of data skews of the ExistenceJoin type, and only for left-table skews. ### Why are the changes needed? Automatic processing of data skews of the ExistenceJoin type is not currently supported and if data skew occurs, the application executes very slowly. ### Does this PR introduce _any_ user-facing change? Yes. It will automatically handle data skew in the left table. ### How was this patch tested? New UT. -- 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. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
