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Posted to issues@spark.apache.org by "Wenchen Fan (Jira)" <ji...@apache.org> on 2020/12/29 07:10:00 UTC
[jira] [Assigned] (SPARK-33884) Simplify CaseWhenclauses with (true
and false) and (false and true)
[ https://issues.apache.org/jira/browse/SPARK-33884?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Wenchen Fan reassigned SPARK-33884:
-----------------------------------
Assignee: Yuming Wang
> Simplify CaseWhenclauses with (true and false) and (false and true)
> -------------------------------------------------------------------
>
> Key: SPARK-33884
> URL: https://issues.apache.org/jira/browse/SPARK-33884
> Project: Spark
> Issue Type: Sub-task
> Components: SQL
> Affects Versions: 3.2.0
> Reporter: Yuming Wang
> Assignee: Yuming Wang
> Priority: Major
>
> Simplify CaseWhenclauses with (true and false) and (false and true):
> ||Expression||After simplify||
> |case when cond then true else false end|cond|
> |case when cond then false else true end|!cond|
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