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https://issues.apache.org/jira/browse/HUDI-8527?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Davis Zhang resolved HUDI-8527.
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> Doc update for SQL merge into
> -----------------------------
>
> Key: HUDI-8527
> URL: https://issues.apache.org/jira/browse/HUDI-8527
> Project: Apache Hudi
> Issue Type: Sub-task
> Reporter: Davis Zhang
> Assignee: Davis Zhang
> Priority: Major
> Fix For: 1.0.2
>
>
> The doc should be updated to reflect the change done in
> [https://github.com/apache/hudi/pull/12215]
>
> Also we should update with other MIT behaviors, including:
> * in the update clause we don't support updating only a subset of columns
> * partition key, primary key and precombined key are mandatory in the insert
> and upsert clause of merge into
> * if partition key is not specified in merge into ON clause, what happens
> when source table is partitioned / non partitioned.
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