Reynold Xin created SPARK-12660:
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Summary: Rewrite except using anti-join
Key: SPARK-12660
URL: https://issues.apache.org/jira/browse/SPARK-12660
Project: Spark
Issue Type: Improvement
Components: SQL
Reporter: Reynold Xin
Similar to SPARK-12656, we can rewrite except in the logical level using
anti-join. This way, we can take advantage of all the benefits of join
implementations (e.g. managed memory, code generation, broadcast joins).
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