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https://issues.apache.org/jira/browse/SPARK-27627?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Hyukjin Kwon resolved SPARK-27627.
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Resolution: Fixed
Fix Version/s: 3.0.0
Issue resolved by pull request 24518
[https://github.com/apache/spark/pull/24518]
> Make option "pathGlobFilter" as a general option for all file sources
> ---------------------------------------------------------------------
>
> Key: SPARK-27627
> URL: https://issues.apache.org/jira/browse/SPARK-27627
> 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
>
>
> Background:
> The data source option "pathGlobFilter" is introduced for Binary file format:
> https://github.com/apache/spark/pull/24354 , which can be used for filtering
> file names, e.g. reading "*.png" files only while there is "*.json" files in
> the same directory.
> Proposal:
> Make the option "pathGlobFilter" as a general option for all file sources.
> The path filtering should happen in the path globbing on Driver.
> Motivation:
> Filtering the file path names in file scan tasks on executors is kind of
> ugly.
> Impact:
> 1. The splitting of file partitions will be more balanced.
> 2. The metrics of file scan will be more accurate.
> 3. Users can use the option for reading other file sources.
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