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https://issues.apache.org/jira/browse/SPARK-17104?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15424168#comment-15424168
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Apache Spark commented on SPARK-17104:
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User 'viirya' has created a pull request for this issue:
https://github.com/apache/spark/pull/14682
> LogicalRelation.newInstance should follow the semantics of
> MultiInstanceRelation
> --------------------------------------------------------------------------------
>
> Key: SPARK-17104
> URL: https://issues.apache.org/jira/browse/SPARK-17104
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Reporter: Liang-Chi Hsieh
>
> Currently LogicalRelation.newInstance() simply creates another
> LogicalRelation object with the same parameters. However, the newInstance()
> method inherited from MultiInstanceRelation should return a copy of unique
> expression ids. Current LogicalRelation.newInstance() causes failure when
> doing self-join.
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