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https://issues.apache.org/jira/browse/SPARK-36561?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Hyukjin Kwon resolved SPARK-36561.
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    Resolution: Invalid

> Remove `ColumnVector.numNulls`
> ------------------------------
>
>                 Key: SPARK-36561
>                 URL: https://issues.apache.org/jira/browse/SPARK-36561
>             Project: Spark
>          Issue Type: Improvement
>          Components: Spark Core
>    Affects Versions: 3.2.0
>            Reporter: Dmitry Sysolyatin
>            Priority: Major
>
> Hi!
> When I was implementing ColumnVector abstract class I started to check where 
> `numNulls` is used in spark source code. I didn't find any places where it is 
> used except tests
> Is there any plans to use it in the future. If no then I suppose to remove 
> `numNulls` method.



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