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https://issues.apache.org/jira/browse/SPARK-17071?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Hyukjin Kwon resolved SPARK-17071.
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Resolution: Won't Fix
I am resolving this. Please refer the discussion in the PR.
> Fetch Parquet schema within driver-side when there is single file to touch
> without another Spark job
> ----------------------------------------------------------------------------------------------------
>
> Key: SPARK-17071
> URL: https://issues.apache.org/jira/browse/SPARK-17071
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Affects Versions: 2.0.0
> Reporter: Hyukjin Kwon
>
> Currently, it seems always launch a Spark distributed job to fetch and merge
> Parquet's schemas.
> It seems we don't actually have to run another Spark job even when there is
> only a single file to touch (meaning without {{mergeSchema}}) but just fetch
> the schema within driver-side just like ORC data source is doing.
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