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https://issues.apache.org/jira/browse/HUDI-2170?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17394505#comment-17394505
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ASF GitHub Bot commented on HUDI-2170:
--------------------------------------
vinothchandar commented on a change in pull request #3401:
URL: https://github.com/apache/hudi/pull/3401#discussion_r683938063
##########
File path:
hudi-client/hudi-client-common/src/main/java/org/apache/hudi/io/HoodieMergeHandle.java
##########
@@ -239,7 +240,14 @@ protected void init(String fileId,
Iterator<HoodieRecord<T>> newRecordsItr) {
record.seal();
}
// NOTE: Once Records are added to map (spillable-map), DO NOT change it
as they won't persist
- keyToNewRecords.put(record.getRecordKey(), record);
+ String key = record.getRecordKey();
+ if (keyToNewRecords.containsKey(key)) {
Review comment:
typically we won't hit this, since the precombine is done on incoming
records by default, even before we index. So mostly seems like a fallback
handling?
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> Always choose the latest record for HoodieRecordPayload
> -------------------------------------------------------
>
> Key: HUDI-2170
> URL: https://issues.apache.org/jira/browse/HUDI-2170
> Project: Apache Hudi
> Issue Type: Improvement
> Components: Common Core
> Reporter: Danny Chen
> Assignee: Danny Chen
> Priority: Major
> Labels: pull-request-available
> Fix For: 0.9.0
>
>
> Now in {{OverwriteWithLatestAvroPayload.preCombine}}, we still choose the old
> record when the new record has the same preCombine field with the old one,
> actually it is more natural to keep the new incoming record instead. The
> {{DefaultHoodieRecordPayload.combineAndGetUpdateValue}} method already did
> that.
> See issue: https://github.com/apache/hudi/issues/3266.
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