Reynold Xin created SPARK-12656: ----------------------------------- Summary: Rewrite Intersect phyiscal plan using semi-join Key: SPARK-12656 URL: https://issues.apache.org/jira/browse/SPARK-12656 Project: Spark Issue Type: Improvement Components: SQL Reporter: Reynold Xin
Our current Intersect physical operator simply delegates to RDD.intersect. We should remove the Intersect physical operator and simply transform a logical intersect into a semi-join. This way, we can take advantage of all the benefits of join implementations (e.g. managed memory, code generation, broadcast joins). -- 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