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https://issues.apache.org/jira/browse/SPARK-30627?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Dongjoon Hyun resolved SPARK-30627.
-----------------------------------
Fix Version/s: 3.0.0
Resolution: Fixed
Issue resolved by pull request 27348
[https://github.com/apache/spark/pull/27348]
> Disable all the V2 file sources in Spark 3.0 by default
> -------------------------------------------------------
>
> Key: SPARK-30627
> URL: https://issues.apache.org/jira/browse/SPARK-30627
> Project: Spark
> Issue Type: Sub-task
> Components: SQL
> Affects Versions: 3.0.0
> Reporter: Gengliang Wang
> Assignee: Gengliang Wang
> Priority: Major
> Fix For: 3.0.0
>
>
> There are still some missing parts in the file source V2 framework:
> 1. It doesn't support reporting file scan metrics such as
> "numOutputRows"/"numFiles"/"fileSize" like `FileSourceScanExec`.
> 2. It doesn't support partition pruning with subqueries or dynamic partition
> pruning.
> As we are going to code freeze on Jan 31st, I suggest disabling all the V2
> file sources in Spark 3.0 by default.
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