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Posted to issues@spark.apache.org by "ulysses you (Jira)" <ji...@apache.org> on 2021/04/09 01:09:00 UTC
[jira] [Updated] (SPARK-34991) Mark GlobalLimit outputPartitioning
as SinglePartition
[ https://issues.apache.org/jira/browse/SPARK-34991?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
ulysses you updated SPARK-34991:
--------------------------------
Description: Accroding to the semantics of `GlobalLimitExec`, the outputPartitioning should always be `SinglePartition`. (was: Accroding to the semantics of `GlobalLimitExec`, the outputPartitioning should always be `SinglePartition`. And we can avoid unnecessary shuffle.)
> Mark GlobalLimit outputPartitioning as SinglePartition
> ------------------------------------------------------
>
> Key: SPARK-34991
> URL: https://issues.apache.org/jira/browse/SPARK-34991
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Affects Versions: 3.2.0
> Reporter: ulysses you
> Priority: Minor
>
> Accroding to the semantics of `GlobalLimitExec`, the outputPartitioning should always be `SinglePartition`.
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