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https://issues.apache.org/jira/browse/CALCITE-6361?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17836014#comment-17836014
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Julian Hyde commented on CALCITE-6361:
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By the way, please don't say 'crashes'. Say what error is thrown.
> Uncollect.deriveUncollectRowType crashes if the input data is not a collection
> ------------------------------------------------------------------------------
>
> Key: CALCITE-6361
> URL: https://issues.apache.org/jira/browse/CALCITE-6361
> Project: Calcite
> Issue Type: Bug
> Components: core
> Affects Versions: 1.37.0
> Reporter: Mihai Budiu
> Priority: Minor
>
> This happens because the type checker calls getComponentType() without
> checking first that the field type has components. It should report an error
> in such a case.
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