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https://issues.apache.org/jira/browse/SPARK-57243?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Max Gekk resolved SPARK-57243.
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Fix Version/s: 4.3.0
Resolution: Fixed
Issue resolved by pull request 56296
[https://github.com/apache/spark/pull/56296]
> Wrap IsNull and IsNotNull in brackets for V2 SQL builder
> --------------------------------------------------------
>
> Key: SPARK-57243
> URL: https://issues.apache.org/jira/browse/SPARK-57243
> Project: Spark
> Issue Type: Improvement
> Components: Spark Core
> Affects Versions: 4.2.0
> Reporter: Milan Stefanovic
> Assignee: Milan Stefanovic
> Priority: Major
> Labels: pull-request-available
> Fix For: 4.3.0
>
>
> Right now IsNull is pushed without brackets, so if we were to have expression
> such as:
> IsNull(EqualTo(a, b)) it would be pushed down as `a=b IS NULL`.
> This is error prone as it depends on operator precedence/parser of the
> dialect.
> We should make it more safe by pushing it down as `(a=b) IS NULL`
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