{"action":"created","comment":{"url":"https://api.github.com/repos/apache/spark/pulls/comments/87703689","pull_request_review_id":8307614,"id":87703689,"diff_hunk":"@@ -157,11 +156,11 @@ case class DataSource(\n   def createSource(metadataPath: String): Source = {\n     providingClass.newInstance() match {\n       case s: StreamSourceProvider =>\n-        s.createSource(\n-          sparkSession.sqlContext, metadataPath, userSpecifiedSchema, className, options)\n+        s.createSource(sparkSession.sqlContext, metadataPath, userSpecifiedSchema, className,\n+          caseInsensitiveOptions)","path":"sql/core/src/main/scala/org/apache/spark/sql/execution/datasources/DataSource.scala","position":35,"original_position":35,"commit_id":"ea47d74008fefa0b1a1324acb97686e01f9277d7","original_commit_id":"ea47d74008fefa0b1a1324acb97686e01f9277d7","user":{"login":"gatorsmile","id":11567269,"avatar_url":"https://avatars.githubusercontent.com/u/11567269?v=3","gravatar_id":"","url":"https://api.github.com/users/gatorsmile","html_url":"https://github.com/gatorsmile","followers_url":"https://api.github.com/users/gatorsmile/followers","following_url":"https://api.github.com/users/gatorsmile/following{/other_user}","gists_url":"https://api.github.com/users/gatorsmile/gists{/gist_id}","starred_url":"https://api.github.com/users/gatorsmile/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/gatorsmile/subscriptions","organizations_url":"https://api.github.com/users/gatorsmile/orgs","repos_url":"https://api.github.com/users/gatorsmile/repos","events_url":"https://api.github.com/users/gatorsmile/events{/privacy}","received_events_url":"https://api.github.com/users/gatorsmile/received_events","type":"User","site_admin":false},"body":"The code style issue.\r\n```\r\ns.createSource(\r\n  sparkSession.sqlContext,\r\n  metadataPath, \r\n  userSpecifiedSchema, \r\n  className, \r\n  caseInsensitiveOptions)\r\n```\r\n","created_at":"2016-11-13T01:30:36Z","updated_at":"2016-11-13T01:30:36Z","html_url":"https://github.com/apache/spark/pull/15863#discussion_r87703689","pull_request_url":"https://api.github.com/repos/apache/spark/pulls/15863","_links":{"self":{"href":"https://api.github.com/repos/apache/spark/pulls/comments/87703689"},"html":{"href":"https://github.com/apache/spark/pull/15863#discussion_r87703689"},"pull_request":{"href":"https://api.github.com/repos/apache/spark/pulls/15863"}}},"pull_request":{"url":"https://api.github.com/repos/apache/spark/pulls/15863","id":93439515,"html_url":"https://github.com/apache/spark/pull/15863","diff_url":"https://github.com/apache/spark/pull/15863.diff","patch_url":"https://github.com/apache/spark/pull/15863.patch","issue_url":"https://api.github.com/repos/apache/spark/issues/15863","number":15863,"state":"open","locked":false,"title":"[SPARK-18419][SQL] Fix JDBCOptions and DataSource to be case-insensitive for JDBCOptions keys","user":{"login":"dongjoon-hyun","id":9700541,"avatar_url":"https://avatars.githubusercontent.com/u/9700541?v=3","gravatar_id":"","url":"https://api.github.com/users/dongjoon-hyun","html_url":"https://github.com/dongjoon-hyun","followers_url":"https://api.github.com/users/dongjoon-hyun/followers","following_url":"https://api.github.com/users/dongjoon-hyun/following{/other_user}","gists_url":"https://api.github.com/users/dongjoon-hyun/gists{/gist_id}","starred_url":"https://api.github.com/users/dongjoon-hyun/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/dongjoon-hyun/subscriptions","organizations_url":"https://api.github.com/users/dongjoon-hyun/orgs","repos_url":"https://api.github.com/users/dongjoon-hyun/repos","events_url":"https://api.github.com/users/dongjoon-hyun/events{/privacy}","received_events_url":"https://api.github.com/users/dongjoon-hyun/received_events","type":"User","site_admin":false},"body":"## What changes were proposed in this pull request?\r\n\r\nThis PR aims to fix the followings.\r\n\r\n**A. Fix `JDBCOptions.asConnectionProperties` to be case-insensitive.**\r\n\r\n`JDBCOptions.asConnectionProperties` is designed to filter JDBC options out, but it fails to handle `CaseInsensitiveMap` correctly. For the following example, it returns `Map('numpartitions' -> \"10\")` as a wrong result and the assertion fails.\r\n\r\n```scala\r\nval options = new JDBCOptions(new CaseInsensitiveMap(Map(\r\n    \"url\" -> \"jdbc:mysql://localhost:3306/temp\",\r\n    \"dbtable\" -> \"t1\",\r\n    \"numPartitions\" -> \"10\")))\r\nassert(options.asConnectionProperties.isEmpty)\r\n```\r\n\r\n**B. Fix `DataSource` to use `CaseInsensitiveMap` consistently.**\r\n\r\n`DataSource` partially use `CaseInsensitiveMap` in code-path. For example, the following fails to find `url`.\r\n\r\n```scala\r\nval df = spark.createDataFrame(sparkContext.parallelize(arr2x2), schema2)\r\ndf.write.format(\"jdbc\")\r\n    .option(\"URL\", url1)\r\n    .option(\"dbtable\", \"TEST.SAVETEST\")\r\n    .options(properties.asScala)\r\n    .save()\r\n```\r\n\r\nThis PR makes `DataSource` to use `CaseInsensitiveMap` generally except `InMemoryFileIndex` and `InsertIntoHadoopFsRelationCommand`. We can not pass them `CaseInsensitiveMap` because they creates new case-sensitive `HadoopConf`s by calling `newHadoopConfWithOptions(options)` inside.\r\n\r\n## How was this patch tested?\r\n\r\nPass the Jenkins with a new testcase.\r\n","created_at":"2016-11-12T13:47:28Z","updated_at":"2016-11-13T01:30:36Z","closed_at":null,"merged_at":null,"merge_commit_sha":"e6b2cb1a30c20cca521f32737ae9ec2aeaf01559","assignee":null,"assignees":[],"milestone":null,"commits_url":"https://api.github.com/repos/apache/spark/pulls/15863/commits","review_comments_url":"https://api.github.com/repos/apache/spark/pulls/15863/comments","review_comment_url":"https://api.github.com/repos/apache/spark/pulls/comments{/number}","comments_url":"https://api.github.com/repos/apache/spark/issues/15863/comments","statuses_url":"https://api.github.com/repos/apache/spark/statuses/ea47d74008fefa0b1a1324acb97686e01f9277d7","head":{"label":"dongjoon-hyun:SPARK-18419","ref":"SPARK-18419","sha":"ea47d74008fefa0b1a1324acb97686e01f9277d7","user":{"login":"dongjoon-hyun","id":9700541,"avatar_url":"https://avatars.githubusercontent.com/u/9700541?v=3","gravatar_id":"","url":"https://api.github.com/users/dongjoon-hyun","html_url":"https://github.com/dongjoon-hyun","followers_url":"https://api.github.com/users/dongjoon-hyun/followers","following_url":"https://api.github.com/users/dongjoon-hyun/following{/other_user}","gists_url":"https://api.github.com/users/dongjoon-hyun/gists{/gist_id}","starred_url":"https://api.github.com/users/dongjoon-hyun/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/dongjoon-hyun/subscriptions","organizations_url":"https://api.github.com/users/dongjoon-hyun/orgs","repos_url":"https://api.github.com/users/dongjoon-hyun/repos","events_url":"https://api.github.com/users/dongjoon-hyun/events{/privacy}","received_events_url":"https://api.github.com/users/dongjoon-hyun/received_events","type":"User","site_admin":false},"repo":{"id":28900400,"name":"spark","full_name":"dongjoon-hyun/spark","owner":{"login":"dongjoon-hyun","id":9700541,"avatar_url":"https://avatars.githubusercontent.com/u/9700541?v=3","gravatar_id":"","url":"https://api.github.com/users/dongjoon-hyun","html_url":"https://github.com/dongjoon-hyun","followers_url":"https://api.github.com/users/dongjoon-hyun/followers","following_url":"https://api.github.com/users/dongjoon-hyun/following{/other_user}","gists_url":"https://api.github.com/users/dongjoon-hyun/gists{/gist_id}","starred_url":"https://api.github.com/users/dongjoon-hyun/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/dongjoon-hyun/subscriptions","organizations_url":"https://api.github.com/users/dongjoon-hyun/orgs","repos_url":"https://api.github.com/users/dongjoon-hyun/repos","events_url":"https://api.github.com/users/dongjoon-hyun/events{/privacy}","received_events_url":"https://api.github.com/users/dongjoon-hyun/received_events","type":"User","site_admin":false},"private":false,"html_url":"https://github.com/dongjoon-hyun/spark","description":"Mirror 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