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https://issues.apache.org/jira/browse/SPARK-11395?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15035417#comment-15035417
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Apache Spark commented on SPARK-11395:
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User 'sun-rui' has created a pull request for this issue:
https://github.com/apache/spark/pull/10094
> Support over and window specification in SparkR
> -----------------------------------------------
>
> Key: SPARK-11395
> URL: https://issues.apache.org/jira/browse/SPARK-11395
> Project: Spark
> Issue Type: New Feature
> Components: SparkR
> Affects Versions: 1.5.1
> Reporter: Sun Rui
>
> 1. implement over() in Column class.
> 2. support window spec
> (http://spark.apache.org/docs/latest/api/scala/index.html#org.apache.spark.sql.expressions.WindowSpec)
> 3. support utility functions for defining window in DataFrames.
> (http://spark.apache.org/docs/latest/api/scala/index.html#org.apache.spark.sql.expressions.Window)
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