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https://issues.apache.org/jira/browse/SPARK-60356?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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ASF GitHub Bot updated SPARK-60356:
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Labels: pull-request-available (was: )
> Support left semi and left anti join pushdown for DSv2
> --------------------------------------------------------
>
> Key: SPARK-60356
> URL: https://issues.apache.org/jira/browse/SPARK-60356
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Affects Versions: 5.0.0
> Reporter: Hemanth Boyina
> Priority: Major
> Labels: pull-request-available
>
> DSv2 join pushdown currently supports inner, left outer, and right outer
> joins. Left semi and left anti joins are executed in Spark even when the
> underlying database can handle them.
>
>
>
> Add these join types to the connector API and support JDBC pushdown using
> EXISTS and NOT EXISTS. Also allow simple correlated existence subqueries to
> reach join pushdown.
>
>
> The result should contain only
> left-side columns, while preserving duplicate and null semantics. Null-aware
> NOT IN is outside the scope of this change.
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