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https://issues.apache.org/jira/browse/CALCITE-634?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Julian Hyde updated CALCITE-634:
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Summary: Allow ORDER BY aggregate function in SELECT DISTINCT, provided
that it occurs in SELECT clause (was: Failure to order by an aggregate
function, which exists in select-clause if distinct is present in select-clause)
> Allow ORDER BY aggregate function in SELECT DISTINCT, provided that it occurs
> in SELECT clause
> ----------------------------------------------------------------------------------------------
>
> Key: CALCITE-634
> URL: https://issues.apache.org/jira/browse/CALCITE-634
> Project: Calcite
> Issue Type: Bug
> Reporter: Sean Hsuan-Yi Chu
> Assignee: Julian Hyde
> Attachments: CALCITE-634.1.patch
>
>
> For example, the query
> {code:sql}
> select distinct count(empno) from emp
> group by empno
> order by 1
> {code}
> gave:
> org.apache.calcite.sql.validate.SqlValidatorException <init>
> SEVERE: org.apache.calcite.sql.validate.SqlValidatorException: Expression
> 'COUNT(`EMP`.`EMPNO`)' is not in the select clause
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