TheR1sing3un commented on code in PR #13526:
URL: https://github.com/apache/hudi/pull/13526#discussion_r2199372741
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hudi-common/src/main/java/org/apache/hudi/common/engine/HoodieReaderContext.java:
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@@ -385,21 +386,24 @@ private BiFunction<T, Schema, String>
virtualKeyExtractor(String[] recordKeyFiel
/**
* Gets the ordering value in particular type.
*
- * @param record An option of record.
- * @param schema The Avro schema of the record.
- * @param orderingFieldName name of the ordering field
+ * @param record An option of record.
+ * @param schema The Avro schema of the record.
+ * @param orderingFieldNames name of the ordering field
* @return The ordering value.
*/
public Comparable getOrderingValue(T record,
Schema schema,
- Option<String> orderingFieldName) {
- if (orderingFieldName.isEmpty()) {
- return DEFAULT_ORDERING_VALUE;
+ Option<List<String>> orderingFieldNames) {
+ if (orderingFieldNames.isEmpty()) {
+ return Comparables.getDefault();
}
- Object value = getValue(record, schema, orderingFieldName.get());
- Comparable finalOrderingVal = value != null ?
convertValueToEngineType((Comparable) value) : DEFAULT_ORDERING_VALUE;
- return finalOrderingVal;
+ return new Comparables(
+ orderingFieldNames.get().stream().map(field -> {
+ Object value = getValue(record, schema, field);
+ // API getDefaultOrderingValue is only used inside Comparables
constructor
Review Comment:
Let's pay attention to the performance issue in this method that every
record passes through. How about using a fixed-size list with
`ArrayList(orderingFieldNames.size())` instead?
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