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https://issues.apache.org/jira/browse/SPARK-37273?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17442057#comment-17442057
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Hyukjin Kwon commented on SPARK-37273:
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Don't we already have this in DSv2? e.g.) SPARK-31255
> Hidden File Metadata Support for Spark SQL
> ------------------------------------------
>
> Key: SPARK-37273
> URL: https://issues.apache.org/jira/browse/SPARK-37273
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Affects Versions: 3.2.0
> Reporter: Yaohua Zhao
> Priority: Major
>
> Provide a new interface in Spark SQL that allows users to query the metadata
> of the input files for all file formats, expose them as *built-in hidden
> columns* meaning *users can only see them when they explicitly reference
> them* (e.g. file path, file name)
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