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https://issues.apache.org/jira/browse/HUDI-2139?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17384898#comment-17384898
]
ASF GitHub Bot commented on HUDI-2139:
--------------------------------------
hudi-bot edited a comment on pull request #3230:
URL: https://github.com/apache/hudi/pull/3230#issuecomment-874605269
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## CI report:
* 2568538186a80a3cea8470e01cafb654a825c75a UNKNOWN
* 2b6219dd1b9a223dcff9e37548a14e5e1dad9813 Azure:
[FAILURE](https://dev.azure.com/apache-hudi-ci-org/785b6ef4-2f42-4a89-8f0e-5f0d7039a0cc/_build/results?buildId=1065)
* c5b3498695c86f4c689147ff6dc7469568569ac9 UNKNOWN
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> MergeInto MOR Table May Result InCorrect Result
> -----------------------------------------------
>
> Key: HUDI-2139
> URL: https://issues.apache.org/jira/browse/HUDI-2139
> Project: Apache Hudi
> Issue Type: Bug
> Components: Spark Integration
> Reporter: pengzhiwei
> Assignee: pengzhiwei
> Priority: Major
> Labels: pull-request-available
> Fix For: 0.9.0
>
>
> Currently we process all the update-action and inert-action in the
> ExpressionPayload#
> getInsertValue without know whether the record is matched or not matched for
> MOR table. This may result in incorrect merge result. e.g.
> {code:java}
> Merge into h0
> using (select 2 as id, 'a1' as name, 10 as price from s) s0
> on h0.id = s0.id
> when matched then s0.id = 1 the update set id = s0.id, name = s0.name, price
> = 10
> when not matched then s0.id = 2 the insert (id,name,price) values(id,name,
> 20){code}
> If the id = 2 can matched the target table h0, but it cannot match the
> udpate-condition ( s0.id = 1), It should not update the table. However,
> currently we cannot know the matched state of the input record, it will goes
> to the not-matched actions and update the price to 20 finally. This is
> incorrect.
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