[
https://issues.apache.org/jira/browse/SPARK-32201?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17152535#comment-17152535
]
Apache Spark commented on SPARK-32201:
--------------------------------------
User 'LantaoJin' has created a pull request for this issue:
https://github.com/apache/spark/pull/29021
> 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.
--
This message was sent by Atlassian Jira
(v8.3.4#803005)
---------------------------------------------------------------------
To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org
For additional commands, e-mail: issues-h...@spark.apache.org
