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https://issues.apache.org/jira/browse/SPARK-7724?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Michael Armbrust resolved SPARK-7724.
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Resolution: Won't Fix
These both exist in
[dataframes|https://github.com/apache/spark/blob/master/sql/core/src/main/scala/org/apache/spark/sql/DataFrame.scala#L889].
The catalyst DSL is really just sugar for writing test cases at this point.
> Add support for Intersect and Except in Catalyst DSL
> ----------------------------------------------------
>
> Key: SPARK-7724
> URL: https://issues.apache.org/jira/browse/SPARK-7724
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Affects Versions: 1.3.1
> Reporter: Santiago M. Mola
> Priority: Trivial
> Labels: easyfix, starter
>
> Catalyst DSL to create logical plans supports most of the current plan, but
> it is missing Except and Intersect. See LogicalPlanFunctions:
> https://github.com/apache/spark/blob/6008ec14ed6491d0a854bb50548c46f2f9709269/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/dsl/package.scala#L248
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