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https://issues.apache.org/jira/browse/SPARK-35636?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Hyukjin Kwon updated SPARK-35636:
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Fix Version/s: (was: 3.1.3)
> Do not push down extract value in higher order function that references both
> sides of a join
> --------------------------------------------------------------------------------------------
>
> Key: SPARK-35636
> URL: https://issues.apache.org/jira/browse/SPARK-35636
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Affects Versions: 3.1.0
> Reporter: Karen Feng
> Assignee: Karen Feng
> Priority: Major
> Fix For: 3.2.0
>
>
> Currently, lambda keys can be referenced outside of the lambda function:
> {quote}Project [transform(keys#0, lambdafunction(_extract_v1#0, lambda key#0,
> false)) AS a#0]
> +- 'Join Cross
> :- Project [kvs#0[lambda key#0].v1 AS _extract_v1#0]
> : +- LocalRelation <empty>, [kvs#0]
> +- LocalRelation <empty>, [keys#0]{quote}
> This should be unchanged from the original state:
> {quote}Project [transform(keys#418, lambdafunction(kvs#417[lambda
> key#420].v1, lambda key#420, false)) AS a#419]
> +- Join Cross
> :- LocalRelation <empty>, [kvs#417]
> +- LocalRelation <empty>, [keys#418]{quote}
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