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https://issues.apache.org/jira/browse/SPARK-3395?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Michael Armbrust resolved SPARK-3395.
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Resolution: Fixed
Fix Version/s: 1.2.0
> {SQL] DSL uses incorrect attribute ids after a distinct()
> ---------------------------------------------------------
>
> Key: SPARK-3395
> URL: https://issues.apache.org/jira/browse/SPARK-3395
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Reporter: Eric Liang
> Assignee: Eric Liang
> Priority: Minor
> Fix For: 1.2.0
>
>
> In the following example,
> val rdd = ... // two columns: {key, value}
> val derivedRDD = rdd.distinct().limit(1)
> sql("explain select * from rdd inner join derivedRDD on rdd.key =
> derivedRDD.key")
> The inner join executes incorrectly since the two keys end up with the same
> attribute id after analysis.
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