akashrn5 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_r386813002
##########
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:
```suggestion
"SORT_COLUMNS Either having duplicate columns : " +
``` SORT_COLUMNS Either contains
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