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https://issues.apache.org/jira/browse/SPARK-27384?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Wenchen Fan resolved SPARK-27384.
---------------------------------
Resolution: Fixed
Fix Version/s: 3.0.0
Issue resolved by pull request 24296
[https://github.com/apache/spark/pull/24296]
> File source V2: Prune unnecessary partition columns
> ---------------------------------------------------
>
> Key: SPARK-27384
> URL: https://issues.apache.org/jira/browse/SPARK-27384
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Affects Versions: 3.0.0
> Reporter: Gengliang Wang
> Assignee: Gengliang Wang
> Priority: Major
> Fix For: 3.0.0
>
>
> When scanning file sources, we can prune unnecessary partition columns on
> constructing input partitions, so that:
> 1. Reduce the data transformation from Driver to Executors
> 2. Make it easier to implement columnar batch readers, since the partition
> columns are already pruned.
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