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https://issues.apache.org/jira/browse/SPARK-33884?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Yuming Wang updated SPARK-33884:
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Description:
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|
was:
This pr simplify {{CaseWhen}} when only one branch and one clause is null and
another is boolean. This simplify similar to SPARK-32721.
||Expression||After simplify||
|case when cond then true else false end|cond|
|case when cond then false else true end|!cond|
> 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
> 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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