zoudan commented on code in PR #3224:
URL: https://github.com/apache/calcite/pull/3224#discussion_r1205054013
##########
core/src/main/java/org/apache/calcite/util/RangeSets.java:
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@@ -129,7 +129,7 @@ public static <C extends Comparable<C>> int
hashCode(RangeSet<C> rangeSet) {
public static <C extends Comparable<C>> boolean isPoint(Range<C> range) {
return range.hasLowerBound()
&& range.hasUpperBound()
- && range.lowerEndpoint().equals(range.upperEndpoint())
+ && range.lowerEndpoint().compareTo(range.upperEndpoint()) == 0
Review Comment:
Maybe it is better to add comment for why we use `compareTo` here
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