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https://issues.apache.org/jira/browse/CALCITE-2567?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Vladimir Sitnikov updated CALCITE-2567:
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Summary: Simplify IS NULL(null) to true (was: RexSimplify#simplifyIsNull
does not work for "is null(null)")
> Simplify IS NULL(null) to true
> ------------------------------
>
> Key: CALCITE-2567
> URL: https://issues.apache.org/jira/browse/CALCITE-2567
> Project: Calcite
> Issue Type: Bug
> Components: core
> Affects Versions: 1.17.0
> Reporter: pengzhiwei
> Assignee: Julian Hyde
> Priority: Major
>
> The "is null(null)" should simplify to "true",but RexSimplify#simplifyIsNull
> does not work for it.
> A PR have made to solve this issue at [PR
> 835|https://github.com/apache/calcite/pull/835]
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