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https://issues.apache.org/jira/browse/SPARK-32163?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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L. C. Hsieh updated SPARK-32163:
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Issue Type: Bug (was: Improvement)
> Nested pruning should still work for nested column extractors of attributes
> with cosmetic variations
> ----------------------------------------------------------------------------------------------------
>
> Key: SPARK-32163
> URL: https://issues.apache.org/jira/browse/SPARK-32163
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Affects Versions: 3.0.0
> Reporter: L. C. Hsieh
> Assignee: L. C. Hsieh
> Priority: Major
>
> If the expressions extracting nested fields have cosmetic variations like
> qualifier difference, currently nested column pruning cannot work well.
> For example, two attributes which are semantically the same, are referred in
> a query, but the nested column extractors of them are treated differently
> when we deal with nested column pruning.
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