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Posted to issues@spark.apache.org by "Guy Khazma (Jira)" <ji...@apache.org> on 2020/01/09 23:38:00 UTC
[jira] [Updated] (SPARK-30475) File source V2: Push data filters
for file listing
[ https://issues.apache.org/jira/browse/SPARK-30475?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Guy Khazma updated SPARK-30475:
-------------------------------
External issue URL: (was: 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
> 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, which consults external metadata and prunes the list of files.
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