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https://issues.apache.org/jira/browse/SPARK-39305?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17542528#comment-17542528
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Apache Spark commented on SPARK-39305:
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User 'MaxGekk' has created a pull request for this issue:
https://github.com/apache/spark/pull/36688
> Implement the EQUAL_NULL function
> ---------------------------------
>
> Key: SPARK-39305
> URL: https://issues.apache.org/jira/browse/SPARK-39305
> Project: Spark
> Issue Type: New Feature
> Components: SQL
> Affects Versions: 3.4.0
> Reporter: Max Gekk
> Assignee: Max Gekk
> Priority: Major
>
> Add new function EQUAL_NULL.
> *Returns TRUE:*
> EQUAL_NULL( <null> , <null> )
> *Returns FALSE:*
> EQUAL_NULL( <null> , <not_null> )
> EQUAL_NULL( <not_null> , <null> )
> *Otherwise:*
> EQUAL_NULL(<expr1>, <expr2>) is equivalent to <expr1> = <expr2>
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