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Apache Spark commented on SPARK-13354: -------------------------------------- User 'davies' has created a pull request for this issue: https://github.com/apache/spark/pull/11234 > Push filter throughout outer join when the condition can filter out empty row > ------------------------------------------------------------------------------ > > Key: SPARK-13354 > URL: https://issues.apache.org/jira/browse/SPARK-13354 > Project: Spark > Issue Type: Improvement > Components: SQL > Reporter: Davies Liu > Assignee: Davies Liu > > For a query > {code} > select * from a left outer join b on a.a = b.a where b.b > 10 > {code} > The condition `b.b > 10` will filter out all the row that the b part of it is > empty. > In this case, we should use Inner join, and push down the filter into b. -- This message was sent by Atlassian JIRA (v6.3.4#6332) --------------------------------------------------------------------- To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org For additional commands, e-mail: issues-h...@spark.apache.org