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https://issues.apache.org/jira/browse/SPARK-52046?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Wenchen Fan resolved SPARK-52046.
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Fix Version/s: 4.1.0
Resolution: Fixed
Issue resolved by pull request 50836
[https://github.com/apache/spark/pull/50836]
> Prettify OuterReference on AggregateExpression names when using toPrettySQL
> ---------------------------------------------------------------------------
>
> Key: SPARK-52046
> URL: https://issues.apache.org/jira/browse/SPARK-52046
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Affects Versions: 4.1.0
> Reporter: Mihailo Aleksic
> Assignee: Mihailo Aleksic
> Priority: Major
> Labels: pull-request-available
> Fix For: 4.1.0
>
>
> In this issue I propose that we remove backticks, qualifiers from
> OuterReference over AggregateExpression when creating name. In other words,
> name for column which is an outer reference would be outer(min(column))
> instead of outer(`min(col)`).
> We also introduce a flag to guard the behavior as it changes the schema of
> some specific LATERAL JOIN queries.
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