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https://issues.apache.org/jira/browse/SPARK-9421?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14645165#comment-14645165
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Apache Spark commented on SPARK-9421:
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User 'JoshRosen' has created a pull request for this issue:
https://github.com/apache/spark/pull/7736
> Fix null-handling bug in UnsafeRow.getDouble, getFloat(), and get(ordinal,
> dataType)
> ------------------------------------------------------------------------------------
>
> Key: SPARK-9421
> URL: https://issues.apache.org/jira/browse/SPARK-9421
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Affects Versions: 1.5.0
> Reporter: Josh Rosen
> Assignee: Josh Rosen
>
> UnsafeRow.getDouble and getFloat() return NaN when called on columns that are
> null, which is inconsistent with the behavior of other row classes (which is
> to return 0.0).
> In addition, the generic get(ordinal, dataType) method should always return
> {{null}} for a null literal, but currently it returns the same thing as the
> more specific getters.
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