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https://issues.apache.org/jira/browse/HIVE-19712?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Zoltan Haindrich reassigned HIVE-19712:
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> In 3 valued logic mode (b and not b) may not be simplified to false
> -------------------------------------------------------------------
>
> Key: HIVE-19712
> URL: https://issues.apache.org/jira/browse/HIVE-19712
> Project: Hive
> Issue Type: Bug
> Reporter: Zoltan Haindrich
> Assignee: Zoltan Haindrich
> Priority: Major
>
> currently its simplified to false; but that is not correct when a is unknown
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