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https://issues.apache.org/jira/browse/SPARK-32201?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Lantao Jin updated SPARK-32201:
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Summary: More general skew join pattern matching (was: More general skew
Join pattern matching)
> More general skew join pattern matching
> ---------------------------------------
>
> Key: SPARK-32201
> URL: https://issues.apache.org/jira/browse/SPARK-32201
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Affects Versions: 3.0.0, 3.1.0
> Reporter: Lantao Jin
> Priority: Major
>
> Current the AQE skew join handling logic is very specified.
> It can only handle the pattern like this:
> {code}
> SMJ
> Sort
> Shuffle
> Sort
> Shuffle
> {code}
> We propose a more general skew Join pattern matching approach.
> In this patch, we can handle 3-tablesjoin, join with aggregation, and so on.
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