Github user HyukjinKwon commented on a diff in the pull request: https://github.com/apache/spark/pull/14960#discussion_r77531923 --- Diff: core/src/main/scala/org/apache/spark/util/Utils.scala --- @@ -1900,7 +1900,20 @@ private[spark] object Utils extends Logging { */ def resolveURI(path: String): URI = { try { - val uri = new URI(path) + val osSafePath = if (Path.isWindowsAbsolutePath(path, false)) { + // Make sure C:/ part becomes /C/. + val windowsUri = new URI(path) + val driveLetter = windowsUri.getScheme + s"/$driveLetter/${windowsUri.getSchemeSpecificPart()}" + } else if (Path.isWindowsAbsolutePath(path, true)) { + // Make sure /C:/ part becomes /C/. + val windowsUri = new URI(path.substring(1)) + val driveLetter = windowsUri.getScheme + s"/$driveLetter/${windowsUri.getSchemeSpecificPart()}" --- End diff -- Ah, If I remember this correctly `C:/../..` works in Windows with R. Is this true or am i just imagining - cc @shivaram ? So, R pass the paths as they as (e.g. `C:/.../..`) and it recognizes pathes as below: <img width="387" alt="2016-09-05 11 45 07" src="https://cloud.githubusercontent.com/assets/6477701/18251218/d1db8b8a-73c2-11e6-8930-d6d9831c34b4.png"> and then produces some error cases?
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