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https://issues.apache.org/jira/browse/SPARK-48206?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Kelvin Jiang updated SPARK-48206:
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Description: Window expressions can be potentially problematic if we pull
out a window expression outside a `Window` operator. Right now this shouldn't
happen but we should add some tests to make sure it doesn't break. (was:
Similar to https://issues.apache.org/jira/browse/SPARK-47839, but for windows.
Currently we don't fail the query, but we end up inlining the common expression
which defeats the purpose of having it in the first place.)
> Add tests for window expression rewrites in RewriteWithExpression
> -----------------------------------------------------------------
>
> Key: SPARK-48206
> URL: https://issues.apache.org/jira/browse/SPARK-48206
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Affects Versions: 4.0.0
> Reporter: Kelvin Jiang
> Priority: Major
>
> Window expressions can be potentially problematic if we pull out a window
> expression outside a `Window` operator. Right now this shouldn't happen but
> we should add some tests to make sure it doesn't break.
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