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Posted to issues@spark.apache.org by "XiDuo You (Jira)" <ji...@apache.org> on 2022/05/05 09:13:00 UTC
[jira] [Updated] (SPARK-39105) Add ConditionalExpression trait
[ https://issues.apache.org/jira/browse/SPARK-39105?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
XiDuo You updated SPARK-39105:
------------------------------
Description:
For develpers, if a custom conditional like expression contains common sub expression then the evaluation order may be changed since Spark will pull out and evla the common sub expressions first during execution.
Add ConditionalExpression trait is friendly for developers.
was:
For develpers, if a custom conditional like expression supports codegen then the evaluation order may be changed since Spark will pull out and evla the common sub expressions first during codegen.
Add ConditionalExpression trait is friendly for developers.
> Add ConditionalExpression trait
> -------------------------------
>
> Key: SPARK-39105
> URL: https://issues.apache.org/jira/browse/SPARK-39105
> Project: Spark
> Issue Type: Sub-task
> Components: SQL
> Affects Versions: 3.4.0
> Reporter: XiDuo You
> Priority: Major
>
> For develpers, if a custom conditional like expression contains common sub expression then the evaluation order may be changed since Spark will pull out and evla the common sub expressions first during execution.
> Add ConditionalExpression trait is friendly for developers.
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