ulysses-you commented on a change in pull request #32932:
URL: https://github.com/apache/spark/pull/32932#discussion_r656916777
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File path:
sql/core/src/main/scala/org/apache/spark/sql/execution/adaptive/CoalesceShufflePartitions.scala
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@@ -30,7 +30,7 @@ import org.apache.spark.sql.internal.SQLConf
case class CoalesceShufflePartitions(session: SparkSession) extends
CustomShuffleReaderRule {
override val supportedShuffleOrigins: Seq[ShuffleOrigin] =
- Seq(ENSURE_REQUIREMENTS, REPARTITION_BY_COL, REPARTITION_BY_NONE)
+ Seq(ENSURE_REQUIREMENTS, REPARTITION_BY_NONE, REPARTITION_BY_COL,
REBALANCE_PARTITIONS)
Review comment:
We can't do this. Otherwise the columns cann't be partitioned and
dynamic partition writing will produce many small files.
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