xiarixiaoyao commented on code in PR #4910:
URL: https://github.com/apache/hudi/pull/4910#discussion_r849197979


##########
hudi-client/hudi-client-common/src/main/java/org/apache/hudi/table/action/compact/RunCompactionActionExecutor.java:
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@@ -70,8 +73,19 @@ public HoodieWriteMetadata<HoodieData<WriteStatus>> 
execute() {
       HoodieCompactionPlan compactionPlan =
           CompactionUtils.getCompactionPlan(table.getMetaClient(), 
instantTime);
 
+      // try to load internalSchema to support schema Evolution
+      HoodieWriteConfig configCopy = config;
+      Pair<Option<String>, Option<String>> schemaPair = InternalSchemaCache

Review Comment:
   origin config will not be modfy,  when schema evolution happen,we will copy 
whole config to configCopy and modfiy the copy config; otherwize nothing will 
happen
   maybe i miss something
   



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