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Posted to issues@calcite.apache.org by "Julian Hyde (Jira)" <ji...@apache.org> on 2019/10/04 21:35:00 UTC

[jira] [Updated] (CALCITE-3387) Query with GROUP BY and JOIN ... USING wrongly fails with "Column 'DEPTNO' is ambiguous" error

     [ https://issues.apache.org/jira/browse/CALCITE-3387?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Julian Hyde updated CALCITE-3387:
---------------------------------
    Description: 
Query with GROUP BY and JOIN ... USING wrongly fails with "Column 'DEPTNO' is ambiguous" error. Here is the query:
{code}
select deptno, count(*)
from emp
join dept using (deptno)
group by deptno;
{code}

Because of USING, the two deptno fields should be merged into one, and therefore {{deptno}} is not ambiguous. That query works in Oracle. Also note that

{code}select deptno
from emp
join dept using (deptno)
{code}

works correctly in Calcite, and has since CALCITE-2227 was fixed.

  was:
Query with GROUP BY and JOIN ... USING wrongly fails with "Column 'DEPTNO' is ambiguous" error. Here is the query:
{code}
select deptno, count(*)
from emp
join dept using (deptno)
group by deptno;
{code}

Because of USING, the two deptno fields should be merged into one, and therefore {{deptno}} is not ambiguous. That query works in Oracle. Also note that

{code}select deptno
from emp
join dept using (deptno)
{code}

works correctly, and has since CALCITE-2227 was fixed.


> Query with GROUP BY and JOIN ... USING wrongly fails with "Column 'DEPTNO' is ambiguous" error
> ----------------------------------------------------------------------------------------------
>
>                 Key: CALCITE-3387
>                 URL: https://issues.apache.org/jira/browse/CALCITE-3387
>             Project: Calcite
>          Issue Type: Bug
>            Reporter: Julian Hyde
>            Priority: Major
>
> Query with GROUP BY and JOIN ... USING wrongly fails with "Column 'DEPTNO' is ambiguous" error. Here is the query:
> {code}
> select deptno, count(*)
> from emp
> join dept using (deptno)
> group by deptno;
> {code}
> Because of USING, the two deptno fields should be merged into one, and therefore {{deptno}} is not ambiguous. That query works in Oracle. Also note that
> {code}select deptno
> from emp
> join dept using (deptno)
> {code}
> works correctly in Calcite, and has since CALCITE-2227 was fixed.



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