GitHub user dongjoon-hyun opened a pull request:
https://github.com/apache/spark/pull/15884
[WIP][SPARK-18433][SQL] Improve DataSource option keys to be more
case-insensitive
## What changes were proposed in this pull request?
This PR aims to improve DataSource option keys to be more case-insensitive
DataSource partially use CaseInsensitiveMap in code-path. For example, the
following fails to find url.
```scala
val df = spark.createDataFrame(sparkContext.parallelize(arr2x2), schema2)
df.write.format("jdbc")
.option("URL", url1)
.option("dbtable", "TEST.SAVETEST")
.options(properties.asScala)
.save()
```
This PR makes DataSource options to use CaseInsensitiveMap internally and
also makes DataSource to use CaseInsensitiveMap generally except
`InMemoryFileIndex` and `InsertIntoHadoopFsRelationCommand`. We can not pass
them CaseInsensitiveMap because they creates new case-sensitive HadoopConfs by
calling newHadoopConfWithOptions(options) inside.
## How was this patch tested?
Pass the Jenkins test with newly added test cases.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/dongjoon-hyun/spark SPARK-18433
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/15884.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #15884
----
commit 30eff086159dabc8db7a46f6d4021c187d7fa4ed
Author: Dongjoon Hyun <dongj...@apache.org>
Date: 2016-11-14T08:59:23Z
[SPARK-18433][SQL] Improve DataSource option keys to be more
case-insensitive
----
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