[jira] [Updated] (CALCITE-634) Allow ORDER BY aggregate function in SELECT DISTINCT, provided that it occurs in SELECT clause

["Julian Hyde (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/CALCITE-634?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Julian Hyde updated CALCITE-634:
--------------------------------
    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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