danny0405 commented on code in PR #19637:
URL: https://github.com/apache/hudi/pull/19637#discussion_r3888209280
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hudi-common/src/main/java/org/apache/hudi/common/util/OrderingValues.java:
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@@ -114,7 +114,26 @@ public static List<Comparable> getValues(ArrayComparable
orderingValue) {
return orderingValue.getValues();
}
- public static boolean isCommitTimeOrderingValue(Comparable orderingValue) {
+ public static boolean isNullOrDefault(Comparable orderingValue) {
return orderingValue == null || OrderingValues.isDefault(orderingValue);
}
+
+ /**
+ * Returns whether {@code baseOrderingValue} strictly outranks {@code
incomingOrderingValue} under
+ * event-time ordering. A null or default (commit-time) base ordering value
ranks lowest, so this
+ * returns {@code false} and the incoming record wins by natural order. The
incoming ordering value
+ * is expected to be a real value; callers that may pass a null or default
incoming value (for
+ * example delete records) must guard for it before calling. Two non-null
values of different
+ * classes are not comparable and throw {@link IllegalArgumentException}.
+ */
+ public static boolean isBaseOrderingHigher(Comparable baseOrderingValue,
Comparable incomingOrderingValue) {
+ if (isNullOrDefault(baseOrderingValue)) {
Review Comment:
+1, there is no need to change the non-deletes merging path.
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