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https://issues.apache.org/jira/browse/SPARK-44426?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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caican updated SPARK-44426:
---------------------------
Description:
For this query, InSubQuery would be cast to ExistenceJoin and now
ExistenceJoin does not support automatic data skew for the left table.
{code:java}
SELECT * FROM skewData1
where
(key1 in (select key2 from skewData2)
or value1 in (select value2 from skewData2){code}
was:
For this query, InSubQuery would be cast to `ExistenceJoin` and now
`ExistenceJoin` does not support automatic data skew for the left table.
{code:java}
SELECT * FROM skewData1
where
(key1 in (select key2 from skewData2)
or value1 in (select value2 from skewData2){code}
> optimize adaptive skew join for ExistenceJoin
> ---------------------------------------------
>
> Key: SPARK-44426
> URL: https://issues.apache.org/jira/browse/SPARK-44426
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Affects Versions: 3.1.2, 3.2.0, 3.3.0, 3.4.0
> Reporter: caican
> Priority: Major
>
> For this query, InSubQuery would be cast to ExistenceJoin and now
> ExistenceJoin does not support automatic data skew for the left table.
> {code:java}
> SELECT * FROM skewData1
> where
> (key1 in (select key2 from skewData2)
> or value1 in (select value2 from skewData2){code}
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