[
https://issues.apache.org/jira/browse/SPARK-32291?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Yuming Wang updated SPARK-32291:
--------------------------------
Attachment: COALESCE.png
> COALESCE should not reduce the child parallelism if it is Join
> --------------------------------------------------------------
>
> Key: SPARK-32291
> URL: https://issues.apache.org/jira/browse/SPARK-32291
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Affects Versions: 3.1.0
> Reporter: Yuming Wang
> Priority: Major
> Attachments: COALESCE.png
>
>
> How to reproduce this issue:
> {code:scala}
> spark.range(100).createTempView("t1")
> spark.range(200).createTempView("t2")
> spark.sql("set spark.sql.autoBroadcastJoinThreshold=0")
> spark.sql("select /*+ COALESCE(1) */ t1.* from t1 join t2 on (t1.id =
> t2.id)").show
> {code}
> The dag is:
--
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
