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https://issues.apache.org/jira/browse/HUDI-5324?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Alexey Kudinkin updated HUDI-5324:
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Priority: Critical (was: Major)
> Spark SQL MERGE INTO statement should always do upsert if there's matching
> update clause
> ----------------------------------------------------------------------------------------
>
> Key: HUDI-5324
> URL: https://issues.apache.org/jira/browse/HUDI-5324
> Project: Apache Hudi
> Issue Type: Improvement
> Components: index, spark-sql
> Reporter: Ethan Guo
> Assignee: Alexey Kudinkin
> Priority: Critical
> Fix For: 0.13.0
>
>
> ~When setting hoodie.index.type=BLOOM in the hudi-defaults.conf, while the
> Spark SQL DELETE statement uses Bloom Index, the MERGE INTO statement does
> not seem to use Bloom Index and instead uses Simple Index.~
> h4. *UPDATE*
> Aforementioned issue was actually a result of misconfiguration of the Merge
> Into statement – MIT was using "insert" operation instead of "upsert".
> Real issue though is that MIT implicitly predicates using "upsert" operation
> onto whether "preCombine" config is set. Instead, it should always specify
> operation as "upsert", since MIT allows to specify updating semantics w/o
> requiring presence of the "preCombine" field
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