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https://issues.apache.org/jira/browse/SPARK-13458?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15201112#comment-15201112
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Oliver Beattie commented on SPARK-13458:
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Yes, it looks like these methods were added a week ago for inclusion in 2.0.
https://github.com/apache/spark/commit/1d542785b9949e7f92025e6754973a779cc37c52
Thanks a lot.
> Datasets cannot be sorted
> -------------------------
>
> Key: SPARK-13458
> URL: https://issues.apache.org/jira/browse/SPARK-13458
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Affects Versions: 1.6.0
> Reporter: Oliver Beattie
>
> There doesn't appear to be any way to sort a {{Dataset}} at present, without
> first converting it to a {{DataFrame}}.
> Methods like {{orderBy}}, {{sort}}, and {{sortWithinPartitions}} which are
> present on {{DataFrame}}, or {{sortBy}} which is present on {{RDD}}, are
> absent.
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