cshuo commented on code in PR #13334:
URL: https://github.com/apache/hudi/pull/13334#discussion_r2110611758


##########
hudi-common/src/main/java/org/apache/hudi/common/util/HoodieRecordUtils.java:
##########
@@ -85,11 +88,21 @@ public static HoodieRecordMerger createRecordMerger(String 
basePath, EngineType
   }
 
   public static Option<HoodieRecordMerger> createValidRecordMerger(EngineType 
engineType,
-                                                                   String 
mergerImpls, String recordMergerStrategy) {
-    if 
(recordMergerStrategy.equals(HoodieRecordMerger.PAYLOAD_BASED_MERGE_STRATEGY_UUID))
 {
-      return Option.of(HoodieAvroRecordMerger.INSTANCE);
+                                                                   String 
mergerImpls,
+                                                                   String 
recordMergerStrategy) {
+    switch (recordMergerStrategy) {
+      case HoodieRecordMerger.FIRST_VALUE_MERGE_STRATEGY_UUID:

Review Comment:
   Here merger is picked only by strategy id, does it mean if users wanna use, 
e.g., partial update merger, they must specify merger through strategy id? Is 
it possible to configure by merger class



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