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https://issues.apache.org/jira/browse/SPARK-9360?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Davies Liu resolved SPARK-9360.
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Resolution: Fixed
Fix Version/s: 1.5.0
Issue resolved by pull request 7676
[https://github.com/apache/spark/pull/7676]
> Support BinaryType in PrefixComparators for UnsafeExternalSort
> --------------------------------------------------------------
>
> Key: SPARK-9360
> URL: https://issues.apache.org/jira/browse/SPARK-9360
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Affects Versions: 1.4.1
> Reporter: Takeshi Yamamuro
> Fix For: 1.5.0
>
>
> The current implementation of UnsafeExternalSort uses NoOpPrefixComparator
> for binary-typed data.
> So, we need to add BinaryPrefixComparator in PrefixComparators.
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