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https://issues.apache.org/jira/browse/SPARK-44505?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Wenchen Fan resolved SPARK-44505.
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Fix Version/s: 3.5.0
Resolution: Fixed
Issue resolved by pull request 42099
[https://github.com/apache/spark/pull/42099]
> DataSource v2 Scans should not require planning the input partitions on
> explain
> -------------------------------------------------------------------------------
>
> Key: SPARK-44505
> URL: https://issues.apache.org/jira/browse/SPARK-44505
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Affects Versions: 3.4.0
> Reporter: Martin Grund
> Assignee: Martin Grund
> Priority: Major
> Fix For: 3.5.0
>
>
> Right now, we will always call `planInputPartitions()` for a DSv2
> implementation even if there is no spark job run but only explain.
> We should provide a way to avoid scanning all input partitions just to
> determine if the input is columnar or not. The scan should provide an
> override.
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