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https://issues.apache.org/jira/browse/CALCITE-1954?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Julian Hyde resolved CALCITE-1954.
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Resolution: Fixed
Fix Version/s: 1.14.0
Fixed in http://git-wip-us.apache.org/repos/asf/calcite/commit/22e5cfc0.
> SqlValidator need to maintain forceNullable across joins and renaming
> ---------------------------------------------------------------------
>
> Key: CALCITE-1954
> URL: https://issues.apache.org/jira/browse/CALCITE-1954
> Project: Calcite
> Issue Type: Bug
> Reporter: MinJi Kim
> Assignee: Julian Hyde
> Fix For: 1.14.0
>
>
> In the following query below, SqlValidator return rowtype with the second
> column as NOT NULL. Since this is a left outer join, it should be nullable.
> {code}
> select * from
> (select row_number() over (order by sal) from emp) as emp1(r1)
> left outer join
> (select dense_rank() over(order by sal) from emp) as emp2(r2)
> on (emp1.r1 = emp2.r2)
> {code}
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