michaelzhang-db opened a new pull request #33310: URL: https://github.com/apache/spark/pull/33310
### What changes were proposed in this pull request? Added another partition spec to allow OptimizeLocalShuffleReader rule to read data from multiple mappers if the parallelism is less than the number of mappers. ### Why are the changes needed? Optimization to the OptimizeLocalShuffleReader rule ### Does this PR introduce _any_ user-facing change? No ### How was this patch tested? Unit 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. To unsubscribe, e-mail: reviews-unsubscr...@spark.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org --------------------------------------------------------------------- To unsubscribe, e-mail: reviews-unsubscr...@spark.apache.org For additional commands, e-mail: reviews-h...@spark.apache.org