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Posted to issues@spark.apache.org by "Apache Spark (JIRA)" <ji...@apache.org> on 2018/07/20 16:50:00 UTC
[jira] [Commented] (SPARK-24878) Fix reverse function for array
type of primitive type containing null.
[ https://issues.apache.org/jira/browse/SPARK-24878?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16550981#comment-16550981 ]
Apache Spark commented on SPARK-24878:
--------------------------------------
User 'ueshin' has created a pull request for this issue:
https://github.com/apache/spark/pull/21830
> 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
> 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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