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https://issues.apache.org/jira/browse/SPARK-10601?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14987666#comment-14987666
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Rick Hillegas commented on SPARK-10601:
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This is a useful operator supported by Oracle:
http://docs.oracle.com/cd/B19306_01/server.102/b14200/queries004.htm. However,
the MINUS operator is not part of the ANSI/ISO SQL Standard. The Standard
workaround is to LEFT JOIN the first set with the second set and add a WHERE
clause which discards the rows whose right half is filled with NULLs.
> Spark SQL - Support for MINUS
> -----------------------------
>
> Key: SPARK-10601
> URL: https://issues.apache.org/jira/browse/SPARK-10601
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Reporter: Richard Garris
>
> Spark SQL does not current supported SQL Minus
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