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https://issues.apache.org/jira/browse/SPARK-18362?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Reynold Xin resolved SPARK-18362.
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Resolution: Fixed
Fix Version/s: 2.2.0
> Use TextFileFormat in implementation of CSVFileFormat
> -----------------------------------------------------
>
> Key: SPARK-18362
> URL: https://issues.apache.org/jira/browse/SPARK-18362
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Reporter: Josh Rosen
> Assignee: Josh Rosen
> Fix For: 2.2.0
>
>
> Spark's CSVFileFormat data source uses inefficient methods for reading files
> during schema inference and does not benefit from file listing / IO
> performance improvements made in Spark 2.0. In order to fix this performance
> problem, we should re-implement those read paths in terms of TextFileFormat.
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