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https://issues.apache.org/jira/browse/CALCITE-7619?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Mihai Budiu resolved CALCITE-7619.
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Assignee: Mihai Budiu
Resolution: Fixed
Fixed in
[https://github.com/apache/calcite/commit/1317946ea1c318ca7cc895031ce8ca48777fcf2d]
Thank you for the review [~xuzifu666]
> RexSimplify incorrectly simplifies IS_FALSE(x) when x is nullable
> -----------------------------------------------------------------
>
> Key: CALCITE-7619
> URL: https://issues.apache.org/jira/browse/CALCITE-7619
> Project: Calcite
> Issue Type: Bug
> Components: core
> Affects Versions: 1.42.0
> Reporter: Mihai Budiu
> Assignee: Mihai Budiu
> Priority: Minor
> Labels: pull-request-available
> Fix For: 1.43.0
>
>
> The expression is reduced to CAST(NOT(x) AS BOOLEAN NOT NULL). This is wrong
> when x is NULL.
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