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https://issues.apache.org/jira/browse/SPARK-38180?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17490554#comment-17490554
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Apache Spark commented on SPARK-38180:
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User 'allisonwang-db' has created a pull request for this issue:
https://github.com/apache/spark/pull/35486
> Allow safe up-cast expressions in correlated equality predicates
> ----------------------------------------------------------------
>
> Key: SPARK-38180
> URL: https://issues.apache.org/jira/browse/SPARK-38180
> Project: Spark
> Issue Type: Sub-task
> Components: SQL
> Affects Versions: 3.3.0
> Reporter: Allison Wang
> Priority: Major
>
> Relax the constraint added in SPARK-35080 by allowing safe up-cast
> expressions in correlated equality predicates. For example:
> {code:java}
> cast(x AS STRING) = outer(x) {code}
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