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https://issues.apache.org/jira/browse/CALCITE-4295?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17204489#comment-17204489
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Zhenghua Gao commented on CALCITE-4295:
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[~danny0405] The PR contains a re-produceable test case
> The minMin function of CompositeOperandTypeChecker should returns the minimum
> of lower bound of all SqlOperandCountRange
> ------------------------------------------------------------------------------------------------------------------------
>
> Key: CALCITE-4295
> URL: https://issues.apache.org/jira/browse/CALCITE-4295
> Project: Calcite
> Issue Type: Bug
> Components: core
> Affects Versions: 1.25.0
> Reporter: Zhenghua Gao
> Priority: Minor
> Labels: pull-request-available
> Time Spent: 10m
> Remaining Estimate: 0h
>
> If we define a type checker with:
> ```
> OperandTypes.or(
> OperandTypes.variadic(SqlOperandCountRanges.from(3),
> OperandTypes.variadic(SqlOperandCountRanges.from(4))
> ```
> will throw a java.lang.IllegalArgumentException
>
>
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