[jira] [Resolved] (SPARK-17071) Fetch Parquet schema within driver-side when there is single file to touch without another Spark job

["Hyukjin Kwon (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SPARK-17071?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

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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