db-derby-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Mike Matrigali (JIRA)" <j...@apache.org>
Subject [jira] Issue Comment Edited: (DERBY-4331) Join returns results in wrong order
Date Wed, 05 Aug 2009 19:00:15 GMT

    [ https://issues.apache.org/jira/browse/DERBY-4331?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12739675#action_12739675
] 

Mike Matrigali edited comment on DERBY-4331 at 8/5/09 12:00 PM:
----------------------------------------------------------------

This is a patch file based off of trunk.

not fully tested patch file.  This patch just gets rid of the FromBaseTable.java changes
to DERBY-3926, it leaves every thing else.

So far my testing shows:
postives: fixes all run test cases of DERBY-3926 and DERBY-4331
negatives: Causes some diffs in wisconsin, probably the known cases where we 
                  don't do sort avoidance anymore - but still get correct sorting.
unknown: no full test run done yet.

      was (Author: mikem):
    not fully tested path file.  This patch just gets rid of the FromBaseTable.java changes
to DERBY-3926, it leaves every thing else.

So far my testing shows:
postives: fixes all run test cases of DERBY-3926 and DERBY-4331
negatives: Causes some diffs in wisconsin, probably the known cases where we 
                  don't do sort avoidance anymore - but still get correct sorting.
unknown: no full test run done yet.
  
> Join returns results in wrong order
> -----------------------------------
>
>                 Key: DERBY-4331
>                 URL: https://issues.apache.org/jira/browse/DERBY-4331
>             Project: Derby
>          Issue Type: Bug
>          Components: SQL
>    Affects Versions: 10.5.2.0, 10.6.0.0
>            Reporter: Knut Anders Hatlen
>         Attachments: createDBsimpler.txt, createDBsimplerVer2.txt, derby4331_do_not_commit.diff,
notorderby4331.zip, orderby4331.zip, repro.sql, repro2.sql, repro2_qryplan.txt
>
>
> In Derby 10.5.2.0, the query below started returning results in wrong order (note the
ORDER BY clause). Derby 10.5.1.1 gives the expected ordering.
> ij> SELECT CS.ID
> FROM
>     CHANGESETS CS, FILECHANGES FC, REPOSITORIES R, FILES F, AUTHORS A
> WHERE
>     R.PATH = '/var/tmp/source5923202038296723704opengrok/mercurial' AND F.REPOSITORY
= R.ID AND A.REPOSITORY = R.ID AND
>     CS.REPOSITORY = R.ID AND CS.ID = FC.CHANGESET AND F.ID = FC.FILE AND
>     A.ID = CS.AUTHOR AND
>     EXISTS (
>         SELECT 1
>         FROM FILES F2
>         WHERE
>             F2.ID = FC.FILE AND F2.REPOSITORY = R.ID AND
>             F2.PATH LIKE '/%' ESCAPE '#')
> ORDER BY CS.ID DESC;
> ID         
> -----------
> 1          
> 2          
> 3          
> 2          
> 2          
> 3          
> 6 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