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https://issues.apache.org/jira/browse/SPARK-7142?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15064447#comment-15064447
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Apache Spark commented on SPARK-7142:
-------------------------------------

User 'gatorsmile' has created a pull request for this issue:
https://github.com/apache/spark/pull/10383

> Minor enhancement to BooleanSimplification Optimizer rule
> ---------------------------------------------------------
>
>                 Key: SPARK-7142
>                 URL: https://issues.apache.org/jira/browse/SPARK-7142
>             Project: Spark
>          Issue Type: Improvement
>          Components: SQL
>            Reporter: Yash Datta
>            Assignee: Yash Datta
>            Priority: Minor
>             Fix For: 1.6.0
>
>
> Add simplification using these rules :
> A and (not(A) or B) => A and B
> not(A and B) => not(A) or not(B)
> not(A or B) => not(A) and not(B)



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