db-derby-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Bryan Pendleton (JIRA)" <j...@apache.org>
Subject [jira] Commented: (DERBY-2351) ORDER BY with expression with distinct in the select list returns incorrect result
Date Thu, 13 Mar 2008 03:03:46 GMT

    [ https://issues.apache.org/jira/browse/DERBY-2351?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12578124#action_12578124
] 

Bryan Pendleton commented on DERBY-2351:
----------------------------------------

Thanks Army and Thomas for the continued help! I re-worked modifySynonymResult.diff
slightly to incorporate Army's suggestions and committed it to the trunk as revision 636608.

If no additional problems arise with this patch in the trunk, I'll investigate merging
back to the 10.4 branch.

> ORDER BY with expression with distinct in the select list returns incorrect result
> ----------------------------------------------------------------------------------
>
>                 Key: DERBY-2351
>                 URL: https://issues.apache.org/jira/browse/DERBY-2351
>             Project: Derby
>          Issue Type: Bug
>          Components: SQL
>    Affects Versions: 10.2.1.6, 10.2.2.0, 10.3.1.4
>         Environment: Any
>            Reporter: Yip Ng
>            Assignee: Bryan Pendleton
>             Fix For: 10.3.2.2, 10.4.0.0
>
>         Attachments: d2351_aliasing.diff, d2351_aliasing.diff, d2351_aliasing_checkQualifiedName.diff,
derby_2351.diff, derby_2351_v2.diff, modifySynonymResults.diff, reproTests.diff
>
>
> When distinct is in the select list and the query has order by with expression, the resultset
produced contains an additional column.  
> ij> create table t1 (c1 int, c2 varchar(10))
> 0 rows inserted/updated/deleted
> ij> insert into t1 values (1,'a'),(2,'b'),(3,'c');
> 3 rows inserted/updated/deleted
> select distinct c1, c2 from t1 order by c1;
> C1         |C2
> ----------------------
> 1          |a
> 2          |b
> 3          |c
> 3 rows selected
> ij> select distinct c1, c2 from t1 order by c1+1;
> C1         |C2        |3                                 <=====returns 3 columns,
incorrect result returned
> ----------------------------------
> 1          |a         |2
> 2          |b         |3
> 3          |c         |4
> 3 rows selected

-- 
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.


Mime
View raw message