You are viewing a plain text version of this content. The canonical link for it is here.
Posted to issues@spark.apache.org by "Apache Spark (Jira)" <ji...@apache.org> on 2021/04/28 10:11:00 UTC

[jira] [Commented] (SPARK-34781) Eliminate LEFT SEMI/ANTI join to its left child side with AQE

    [ https://issues.apache.org/jira/browse/SPARK-34781?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17334631#comment-17334631 ] 

Apache Spark commented on SPARK-34781:
--------------------------------------

User 'ulysses-you' has created a pull request for this issue:
https://github.com/apache/spark/pull/32380

> Eliminate LEFT SEMI/ANTI join to its left child side with AQE
> -------------------------------------------------------------
>
>                 Key: SPARK-34781
>                 URL: https://issues.apache.org/jira/browse/SPARK-34781
>             Project: Spark
>          Issue Type: Improvement
>          Components: SQL
>    Affects Versions: 3.2.0
>            Reporter: Cheng Su
>            Assignee: Cheng Su
>            Priority: Trivial
>             Fix For: 3.2.0
>
>
> In `EliminateJoinToEmptyRelation.scala`, we can extend it to cover more cases for LEFT SEMI and LEFT ANI joins:
>  # Join is left semi join, join right side is non-empty and condition is empty. Eliminate join to its left side.
>  # Join is left anti join, join right side is empty. Eliminate join to its left side.



--
This message was sent by Atlassian Jira
(v8.3.4#803005)

---------------------------------------------------------------------
To unsubscribe, e-mail: issues-unsubscribe@spark.apache.org
For additional commands, e-mail: issues-help@spark.apache.org