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https://issues.apache.org/jira/browse/SPARK-30475?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Gengliang Wang resolved SPARK-30475.
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Assignee: Guy Khazma
Resolution: Fixed
This issue is resolved by https://github.com/apache/spark/pull/27157
> File source V2: Push data filters for file listing
> --------------------------------------------------
>
> Key: SPARK-30475
> URL: https://issues.apache.org/jira/browse/SPARK-30475
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Affects Versions: 3.0.0
> Reporter: Guy Khazma
> Assignee: Guy Khazma
> Priority: Major
> Fix For: 3.0.0
>
>
> Follow up on [SPARK-30428|https://github.com/apache/spark/pull/27112] which
> added support for partition pruning in File source V2.
> We should also pass the {{dataFilters}} to the {{listFiles method.}}
> Datasources such as {{csv}} and {{json}} do not implement the
> {{SupportsPushDownFilters}} trait. In order to support data skipping
> uniformly for all file based data sources, one can override the {{listFiles}}
> method in a {{FileIndex}} implementation and use the {{dataFilters}} and
> partitionFilters to consult external metadata and prunes the list of files.
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