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https://issues.apache.org/jira/browse/CALCITE-1431?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15566998#comment-15566998
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Julian Hyde commented on CALCITE-1431:
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I can imagine that a SQL test is hard. But maybe you could call copyType within
a test that uses a MockCatalogReader, and check the resulting type?
> RelDataTypeFactoryImpl.copyType() did not copy StructKind
> ---------------------------------------------------------
>
> Key: CALCITE-1431
> URL: https://issues.apache.org/jira/browse/CALCITE-1431
> Project: Calcite
> Issue Type: Bug
> Components: core
> Reporter: Maryann Xue
> Assignee: Maryann Xue
> Priority: Minor
> Labels: phoenix
> Fix For: 1.11.0
>
>
> Now that StructKind has been introduced as an attribute of RelDataType by
> CALCITE-1208, when copying a RecordType, we should also copy its StructKind.
> This would be an issue in view expansion, in which columns could not be
> resolved from a view the same way as they would from its original table.
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