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https://issues.apache.org/jira/browse/SPARK-6380?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Michael Armbrust updated SPARK-6380:
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Target Version/s: 1.4.0
> Resolution of equi-join key in post-join projection
> ---------------------------------------------------
>
> Key: SPARK-6380
> URL: https://issues.apache.org/jira/browse/SPARK-6380
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Reporter: Reynold Xin
>
> {code}
> df1.join(df2, df1("key") === df2("key")).select("key")
> {code}
> It would be great to just resolve key to df1("key") in the case of inner
> joins.
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