guestli commented on code in PR #3375:
URL: https://github.com/apache/calcite/pull/3375#discussion_r1309553303
##########
core/src/main/java/org/apache/calcite/util/Util.java:
##########
@@ -2166,6 +2167,24 @@ public static <E> boolean isDistinct(List<E> list) {
return firstDuplicate(list) < 0;
}
+
+ /**
+ * Returns whether the elements of {@code list} are distinct according to a
given
+ * case-sensitivity policy.
+ */
+ public static boolean isDistinct(List<String> list, boolean caseSensitive) {
+ if (caseSensitive) {
+ return isDistinct(list);
+ }
+ final Set<String> set = new TreeSet<>(String.CASE_INSENSITIVE_ORDER);
Review Comment:
@julianhyde Thank you for taking the time to review, and please review it
again.
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