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https://issues.apache.org/jira/browse/SPARK-3831?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Michael Armbrust resolved SPARK-3831.
-------------------------------------
Resolution: Fixed
Fix Version/s: 1.2.0
Issue resolved by pull request 2692
[https://github.com/apache/spark/pull/2692]
> Filter rule Improvement and bool expression optimization.
> ---------------------------------------------------------
>
> Key: SPARK-3831
> URL: https://issues.apache.org/jira/browse/SPARK-3831
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Reporter: Kousuke Saruta
> Fix For: 1.2.0
>
>
> If we write the filter which is always FALSE like
> {code}
> SELECT * from person WHERE FALSE;
> {code}
> 200 tasks will run. I think, 1 task is enough.
> And current optimizer cannot optimize the case NOT is duplicated like
> {code}
> SELECT * from person WHERE NOT ( NOT (age > 30));
> {code}
> The filter rule above should be simplified
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