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https://issues.apache.org/jira/browse/SPARK-24878?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Wenchen Fan reassigned SPARK-24878:
-----------------------------------
Assignee: Takuya Ueshin
> Fix reverse function for array type of primitive type containing null.
> ----------------------------------------------------------------------
>
> Key: SPARK-24878
> URL: https://issues.apache.org/jira/browse/SPARK-24878
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Affects Versions: 2.4.0
> Reporter: Takuya Ueshin
> Assignee: Takuya Ueshin
> Priority: Major
>
> If we use {{reverse}} function for array type of primitive type containing
> {{null}} and the child array is {{UnsafeArrayData}}, the function returns a
> wrong result because {{UnsafeArrayData}} doesn't define the behavior of
> re-assignment, especially we can't set a valid value after we set {{null}}.
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