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https://issues.apache.org/jira/browse/SPARK-27241?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Liang-Chi Hsieh updated SPARK-27241:
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Summary: Add map_keys and map_values support to SelectedField in nested
schema pruning (was: Add map keys support to SelectedField in nested schema
pruning)
> Add map_keys and map_values support to SelectedField in nested schema pruning
> -----------------------------------------------------------------------------
>
> Key: SPARK-27241
> URL: https://issues.apache.org/jira/browse/SPARK-27241
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Affects Versions: 3.0.0
> Reporter: Liang-Chi Hsieh
> Priority: Major
>
> {{SelectedField}} in nested schema pruning doesn't support map keys now. When
> map key is complex struct, we should be able to prune unnecessary fields from
> keys.
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