Github user tdas commented on a diff in the pull request:

    https://github.com/apache/spark/pull/15951#discussion_r89224653
  
    --- Diff: 
sql/core/src/main/scala/org/apache/spark/sql/execution/datasources/DataSource.scala
 ---
    @@ -281,33 +361,25 @@ case class DataSource(
           // This is a non-streaming file based datasource.
           case (format: FileFormat, _) =>
             val allPaths = caseInsensitiveOptions.get("path") ++ paths
    +        val hadoopConf = sparkSession.sessionState.newHadoopConf()
             val globbedPaths = allPaths.flatMap { path =>
    --- End diff --
    
    Just to confirm, for paths with globs, this would expand here ONCE, and 
then expand them AGAIN in `getOrInferFileFormatSchema`, right? 
    
    If so, we dont have to fix it in this PR, but we should document this in a 
JIRA or something for fixing later.


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