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Posted to reviews@spark.apache.org by GitBox <gi...@apache.org> on 2020/06/22 07:46:49 UTC

[GitHub] [spark] JkSelf commented on pull request #28846: [SPARK-32012][SQL] Incrementally create and materialize query stage to avoid unnecessary local shuffle

JkSelf commented on pull request #28846:
URL: https://github.com/apache/spark/pull/28846#issuecomment-647347069


   In our previous 3TB TPC-DS benchmark, the perf improvement is mainly benefit from the coalescing  shuffle partitions and SMJ -> BHJ two features. The result is [here](https://docs.google.com/spreadsheets/d/1uija2AFblciMcYzU4jnPiy6I8mU8-M0-HwSNNns5aLU/edit?usp=sharing) for reference.


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