[GitHub] spark pull request #20466: [SPARK-23293][SQL] fix data source v2 self join
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[GitHub] spark pull request #20466: [SPARK-23293][SQL] fix data source v2 self join
GitHub user cloud-fan opened a pull request: https://github.com/apache/spark/pull/20466 [SPARK-23293][SQL] fix data source v2 self join ## What changes were proposed in this pull request? `DataSourceV2Relation` should extend `MultiInstanceRelation`, to take care of self-joi