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https://issues.apache.org/jira/browse/SPARK-10351?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14721302#comment-14721302
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Apache Spark commented on SPARK-10351:
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User 'feynmanliang' has created a pull request for this issue:
https://github.com/apache/spark/pull/8523
> UnsafeRow.getString should handle off-heap backed UnsafeRow
> -----------------------------------------------------------
>
> Key: SPARK-10351
> URL: https://issues.apache.org/jira/browse/SPARK-10351
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Reporter: Feynman Liang
> Priority: Critical
>
> {{UnsafeRow.getUTF8String}} delegates to {{UTF8String.fromAddress}} which
> returns {{null}} when passed a {{null}} base object, failing to handle
> off-heap backed {{UnsafeRow}}s correctly.
> This will also cause a {{NullPointerException}} when {{getString}} is called
> with off-heap storage.
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