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https://issues.apache.org/jira/browse/SPARK-34899?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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ulysses you updated SPARK-34899:
--------------------------------
Description: The `CoalesceShufflePartitions` can not coalesce such case if
the total shuffle partitions size of mappers are big enough. Then it's confused
to use `CustomShuffleReaderExec` which marked as `coalesced` but has no affect
with partition number. (was: The `CoalesceShufflePartitions` can not coalesce
such case if the total shuffle partitions of mappers are big enough. Then it's
confused to use `CustomShuffleReaderExec` which marked as `coalesced` but has
no affect with partition number.)
> Use origin plan if can not coalesce shuffle partition
> -----------------------------------------------------
>
> Key: SPARK-34899
> URL: https://issues.apache.org/jira/browse/SPARK-34899
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Affects Versions: 3.2.0
> Reporter: ulysses you
> Priority: Minor
>
> The `CoalesceShufflePartitions` can not coalesce such case if the total
> shuffle partitions size of mappers are big enough. Then it's confused to use
> `CustomShuffleReaderExec` which marked as `coalesced` but has no affect with
> partition number.
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