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https://issues.apache.org/jira/browse/SPARK-10811?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14906983#comment-14906983
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Apache Spark commented on SPARK-10811:
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User 'liancheng' has created a pull request for this issue:
https://github.com/apache/spark/pull/8907
> Minimize array copying cost in Parquet converters
> -------------------------------------------------
>
> Key: SPARK-10811
> URL: https://issues.apache.org/jira/browse/SPARK-10811
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Affects Versions: 1.5.0
> Reporter: Cheng Lian
> Assignee: Cheng Lian
>
> When converting Parquet {{Binary}} values to {{UTF8String}} and {{Decimal}}
> values, there exists unnecessary array copying costs ({{Binary.getBytes()}}),
> which can be eliminated for better performance.
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