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https://issues.apache.org/jira/browse/SPARK-18170?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Sean Owen updated SPARK-18170:
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Target Version/s: (was: 2.0.1)
> Confusing error message when using rangeBetween without specifying an
> "orderBy"
> -------------------------------------------------------------------------------
>
> Key: SPARK-18170
> URL: https://issues.apache.org/jira/browse/SPARK-18170
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Reporter: Weiluo Ren
> Priority: Minor
>
> {code}
> spark.range(1,3).select(sum('id) over Window.rangeBetween(0,1)).show
> {code}
> throws runtime exception:
> {code}
> Non-Zero range offsets are not supported for windows with multiple order
> expressions.
> {code}
> which is confusing in this case because we don't have any order expression
> here.
> How about add a check on
> {code}
> orderSpec.isEmpty
> {code}
> at
> https://github.com/apache/spark/blob/master/sql/core/src/main/scala/org/apache/spark/sql/execution/window/WindowExec.scala#L141
> and throw an exception saying "no order expressions is specified"?
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