[jira] [Created] (SPARK-9221) Support IntervalType in Range Frame

["Herman van Hovell (JIRA)" <ji...@apache.org>]

Herman van Hovell created SPARK-9221:
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             Summary: Support IntervalType in Range Frame
                 Key: SPARK-9221
                 URL: https://issues.apache.org/jira/browse/SPARK-9221
             Project: Spark
          Issue Type: Sub-task
          Components: SQL
    Affects Versions: 1.4.0
            Reporter: Herman van Hovell


Support the IntervalType in window range frames, as mentioned in the conclusion of the databricks  blog [post|https://databricks.com/blog/2015/07/15/introducing-window-functions-in-spark-sql.html] on window functions.

This actualy requires us to support Literals instead of Integer constants in Range Frames. The following things will have to be modified:
* org.apache.spark.sql.hive.HiveQl
* org.apache.spark.sql.catalyst.expressions.SpecifiedWindowFrame
* org.apache.spark.sql.execution.Window
* org.apache.spark.sql.expressions.Window



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