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

["Reynold Xin (JIRA)" <ji...@apache.org>]

Reynold Xin created SPARK-17844:
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             Summary: 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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