Github user rxin commented on a diff in the pull request: https://github.com/apache/spark/pull/11270#discussion_r53593587 --- Diff: sql/core/src/main/scala/org/apache/spark/sql/execution/datasources/ResolvedDataSource.scala --- @@ -130,7 +131,28 @@ object ResolvedDataSource extends Logging { bucketSpec: Option[BucketSpec], provider: String, options: Map[String, String]): ResolvedDataSource = { - val clazz: Class[_] = lookupDataSource(provider) + val paths = { + val caseInsensitiveOptions = new CaseInsensitiveMap(options) + if (caseInsensitiveOptions.contains("paths") && + caseInsensitiveOptions.contains("path")) { + throw new AnalysisException(s"Both path and paths options are present.") + } + caseInsensitiveOptions.get("paths") + .map(_.split("(?<!\\\\),").map(StringUtils.unEscapeString(_, '\\', ','))) + .getOrElse(Array(caseInsensitiveOptions.getOrElse("path", { + throw new IllegalArgumentException("'path' is not specified") + }))) --- End diff -- indentation is weird here
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