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https://issues.apache.org/jira/browse/SPARK-18433?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15664901#comment-15664901
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Dongjoon Hyun commented on SPARK-18433:
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Hi, [~smilegator].
In this PR, I'm trying to make all above data source options to use
`CaseSensitiveMap` consistently.
If your suggestion is different from this, please let me know.
> Improve DataSource option keys to be more case-insensitive
> ----------------------------------------------------------
>
> Key: SPARK-18433
> URL: https://issues.apache.org/jira/browse/SPARK-18433
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Reporter: Dongjoon Hyun
> Priority: Minor
>
> Currently, `DataSource.scala` partially use `CaseInsensitiveMap` in
> code-path.
> This issue aims to make `DataSource` to use `CaseInsensitiveMap` generally
> except passing to the other modules (`InMemoryFileIndex` and
> `InsertIntoHadoopFsRelationCommand`). They creates new case-sensitive
> `HadoopConfs` by calling `newHadoopConfWithOptions(options)` inside.
> Also, the following options should be consistent.
> - CSVOptions
> - FileStreamOptions
> - JDBCOptions
> - JSONOptions
> - OrcOptions
> - ParquetOptions
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