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Posted to issues@spark.apache.org by "Wenchen Fan (Jira)" <ji...@apache.org> on 2023/03/22 14:29:00 UTC

[jira] [Assigned] (SPARK-42815) Subexpression elimination support shortcut expression

     [ https://issues.apache.org/jira/browse/SPARK-42815?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Wenchen Fan reassigned SPARK-42815:
-----------------------------------

    Assignee: XiDuo You

> Subexpression elimination support shortcut expression
> -----------------------------------------------------
>
>                 Key: SPARK-42815
>                 URL: https://issues.apache.org/jira/browse/SPARK-42815
>             Project: Spark
>          Issue Type: Improvement
>          Components: SQL
>    Affects Versions: 3.5.0
>            Reporter: XiDuo You
>            Assignee: XiDuo You
>            Priority: Minor
>             Fix For: 3.5.0
>
>
> The subexpression may not need to eval even if it appears more than once.
> e.g., {{{}if(or(a, and(b, b))){}}}, the expression {{b}} would be skipped if {{a}} is true.



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