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Posted to issues@spark.apache.org by "Wenchen Fan (Jira)" <ji...@apache.org> on 2020/04/10 09:00:01 UTC
[jira] [Updated] (SPARK-29544) Optimize skewed join at runtime with
new Adaptive Execution
[ https://issues.apache.org/jira/browse/SPARK-29544?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Wenchen Fan updated SPARK-29544:
--------------------------------
Parent: SPARK-31412
Issue Type: Sub-task (was: Improvement)
> Optimize skewed join at runtime with new Adaptive Execution
> -----------------------------------------------------------
>
> Key: SPARK-29544
> URL: https://issues.apache.org/jira/browse/SPARK-29544
> Project: Spark
> Issue Type: Sub-task
> Components: SQL
> Affects Versions: 3.0.0
> Reporter: Ke Jia
> Assignee: Ke Jia
> Priority: Major
> Fix For: 3.0.0
>
> Attachments: Skewed Join Optimization Design Doc.docx
>
>
> Implement a rule in the new adaptive execution framework introduced in [SPARK-23128|https://issues.apache.org/jira/browse/SPARK-23128]. This rule is used to handle the skew join optimization based on the runtime statistics (data size and row count).
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