yihua commented on code in PR #11747:
URL: https://github.com/apache/hudi/pull/11747#discussion_r1712018696
##########
hudi-common/src/main/java/org/apache/hudi/avro/HoodieAvroUtils.java:
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@@ -1017,9 +1017,19 @@ private static Object
rewriteRecordWithNewSchemaInternal(Object oldRecord, Schem
public static String createFullName(Deque<String> fieldNames) {
String result = "";
if (!fieldNames.isEmpty()) {
- List<String> parentNames = new ArrayList<>();
- fieldNames.descendingIterator().forEachRemaining(parentNames::add);
- result = parentNames.stream().collect(Collectors.joining("."));
+ Iterator<String> iter = fieldNames.descendingIterator();
+ result = iter.next();
+ if (!iter.hasNext()) {
+ return result;
+ }
+
+ StringBuilder sb = new StringBuilder();
+ sb.append(result);
+ while (iter.hasNext()) {
+ sb.append(".");
+ sb.append(iter.next());
+ }
Review Comment:
Could you extract the String join logic to a util method in `StringUtils`?
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