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https://issues.apache.org/jira/browse/SPARK-37163?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17435952#comment-17435952
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Apache Spark commented on SPARK-37163:
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User 'gengliangwang' has created a pull request for this issue:
https://github.com/apache/spark/pull/34440
> Disallow casting Date as Numeric types
> --------------------------------------
>
> Key: SPARK-37163
> URL: https://issues.apache.org/jira/browse/SPARK-37163
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Affects Versions: 3.3.0
> Reporter: Gengliang Wang
> Assignee: Gengliang Wang
> Priority: Major
>
> Currently, Date type values can be cast as Numeric types. However, the result
> is always NULL.
> On the other hand, Numeric values can't be cast as Date type.
> It doesn't make sense to keep the behavior of casting Date to null numeric
> types. I suggest to disallow the conversion. We can have a legacy flag
> `spark.sql.legacy.allowCastDateAsNumeric` if users really want to fall back
> to the legacy behavior.
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