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https://issues.apache.org/jira/browse/SPARK-32018?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17175285#comment-17175285
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Apache Spark commented on SPARK-32018:
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User 'gengliangwang' has created a pull request for this issue:
https://github.com/apache/spark/pull/29404
> Fix UnsafeRow set overflowed decimal
> ------------------------------------
>
> Key: SPARK-32018
> URL: https://issues.apache.org/jira/browse/SPARK-32018
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Affects Versions: 2.4.6, 3.0.0
> Reporter: Allison Wang
> Assignee: Wenchen Fan
> Priority: Major
> Fix For: 2.4.7, 3.0.1, 3.1.0
>
>
> There is a bug that writing an overflowed decimal into UnsafeRow is fine but
> reading it out will throw ArithmeticException. This exception is thrown when
> calling {{getDecimal}} in UnsafeRow with input decimal's precision greater
> than the input precision. Setting the value of the overflowed decimal to null
> when writing into UnsafeRow should fix this issue.
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