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Posted to reviews@spark.apache.org by GitBox <gi...@apache.org> on 2020/03/12 02:44:56 UTC
[GitHub] [spark] JkSelf commented on issue #27879: [SPARK-31124][SQL] change
the default value of minPartitionNum in AQE
JkSelf commented on issue #27879: [SPARK-31124][SQL] change the default value of minPartitionNum in AQE
URL: https://github.com/apache/spark/pull/27879#issuecomment-597978524
We may can remove the default value `minNumPartitions `in `ShufflePartitionsCoalescer.coalescePartitions`. And also pass the `sparkSession `in `OptimizeSkewedJoin` to get the `SparkContext.defaultParallelism` when reducing partition number in the rule of `OptimizeSkewedJoin`.
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