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https://issues.apache.org/jira/browse/SPARK-12585?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15075334#comment-15075334
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Apache Spark commented on SPARK-12585:
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User 'davies' has created a pull request for this issue:
https://github.com/apache/spark/pull/10528
> The numFields of UnsafeRow should not changed by pointTo()
> ----------------------------------------------------------
>
> Key: SPARK-12585
> URL: https://issues.apache.org/jira/browse/SPARK-12585
> Project: Spark
> Issue Type: Improvement
> Reporter: Davies Liu
> Assignee: Davies Liu
>
> Right now, numFields will be passed in by pointTo(), then bitSetWidthInBytes
> is calculated, making pointTo() a little bit heavy.
> It should be part of constructor of UnsafeRow.
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