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https://issues.apache.org/jira/browse/SPARK-52991?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Wenchen Fan resolved SPARK-52991.
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Fix Version/s: 4.1.0
Resolution: Fixed
Issue resolved by pull request 51698
[https://github.com/apache/spark/pull/51698]
> Implement MERGE INTO with SCHEMA EVOLUTION for V2 DataSource
> ------------------------------------------------------------
>
> Key: SPARK-52991
> URL: https://issues.apache.org/jira/browse/SPARK-52991
> Project: Spark
> Issue Type: New Feature
> Components: SQL
> Affects Versions: 4.1.0
> Reporter: Szehon Ho
> Assignee: Szehon Ho
> Priority: Major
> Labels: pull-request-available
> Fix For: 4.1.0
>
>
> https://issues.apache.org/jira/browse/SPARK-47627 already add the syntax for
> MERGE WITH SCHEMA EVOLUTION INTO. to support schema evolution if the SOURCE
> table has different schema than TARGET table.
> However, this require some external Spark extension to make a custom merge
> plan, and is not used natively by Spark when making Merge plan.
> We should honor the syntax when Spark makes the Merge plan for data source
> that support it (currently V2 Data Sources)
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