[
https://issues.apache.org/jira/browse/SPARK-35690?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Cheng Su updated SPARK-35690:
-----------------------------
Issue Type: Improvement (was: Documentation)
> Stream-stream join keys should be reordered properly
> ----------------------------------------------------
>
> Key: SPARK-35690
> URL: https://issues.apache.org/jira/browse/SPARK-35690
> Project: Spark
> Issue Type: Improvement
> Components: Structured Streaming
> Affects Versions: 3.2.0
> Reporter: Cheng Su
> Priority: Minor
>
> For query with multiple stream-stream joins, unnecessary shuffle can be
> happened as we don't reorder join keys for stream-stream join. We already
> reorder join keys for shuffled hash join and sort merge join, so we can also
> have it for stream-stream join -
> [https://github.com/apache/spark/blob/master/sql/core/src/main/scala/org/apache/spark/sql/execution/exchange/EnsureRequirements.scala#L232]
> .
--
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
