[jira] [Commented] (SPARK-17844) DataFrame API should simplify defining frame boundaries without partitioning/ordering

["Apache Spark (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/SPARK-17844?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15560966#comment-15560966 ] 

Apache Spark commented on SPARK-17844:
--------------------------------------

User 'rxin' has created a pull request for this issue:
https://github.com/apache/spark/pull/15412

> DataFrame API should simplify defining frame boundaries without partitioning/ordering
> -------------------------------------------------------------------------------------
>
>                 Key: SPARK-17844
>                 URL: https://issues.apache.org/jira/browse/SPARK-17844
>             Project: Spark
>          Issue Type: Improvement
>          Components: SQL
>            Reporter: Reynold Xin
>            Assignee: Reynold Xin
>
> When I was creating the example code for SPARK-10496, I realized it was pretty convoluted to define the frame boundaries for window functions when there is no partition column or ordering column. The reason is that we don't provide a way to create a WindowSpec directly with the frame boundaries. We can trivially improve this by adding rowsBetween and rangeBetween to Window object.



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