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https://issues.apache.org/jira/browse/SPARK-34691?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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ulysses you resolved SPARK-34691.
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Resolution: Duplicate
> Support Not(Int) and Not(InSet) propagate null
> ----------------------------------------------
>
> Key: SPARK-34691
> URL: https://issues.apache.org/jira/browse/SPARK-34691
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Affects Versions: 3.2.0
> Reporter: ulysses you
> Priority: Minor
>
> `Not(In)` is a little magic, the semantic of it could be seen like `and(a !=
> b, a != c)`
> As we already simplify the `NullIntolerant` expression to null if it's
> children have null at `NullPropagation`. e.g. `a != null` => null. It's safe
> to do the same simplify to `Not(In)`/ `Not(InSet)`
>
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