[GitHub] [carbondata] nihal0107 commented on a change in pull request #3647: [CARBONDATA-3348] Fix the case insensitive validation for duplicate sort column.

[GitBox <gi...@apache.org>]

nihal0107 commented on a change in pull request #3647: [CARBONDATA-3348]  Fix the case insensitive validation for duplicate sort column.
URL: https://github.com/apache/carbondata/pull/3647#discussion_r386817767
 
 

 ##########
 File path: integration/spark/src/main/scala/org/apache/carbondata/spark/util/CommonUtil.scala
 ##########
 @@ -760,11 +760,13 @@ object CommonUtil {
       fields: Seq[(String, String)],
       varcharCols: Seq[String]
   ): Unit = {
-    if (sortKey.diff(sortKey.distinct).length > 0 ||
-        (sortKey.length > 1 && sortKey.contains(""))) {
+    val sortKeyLowerCase = sortKey.map(_.toLowerCase())
+    if ((sortKeyLowerCase).diff(sortKeyLowerCase.distinct).length > 0 ||
+      (sortKeyLowerCase.length > 1 && sortKeyLowerCase.contains(""))) {
       throw new MalformedCarbonCommandException(
         "SORT_COLUMNS Either having duplicate columns : " +
 
 Review comment:
   Done

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