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From "Ajay Bhala (JIRA)" <j...@apache.org>
Subject [jira] Commented: (DERBY-3279) Derby 10.3.X sorts VARCHAR column incorrectly when table is indexed and VARCHAR column contains a value of '00000'
Date Wed, 19 Dec 2007 21:04:44 GMT

    [ https://issues.apache.org/jira/browse/DERBY-3279?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12553493
] 

Ajay Bhala commented on DERBY-3279:
-----------------------------------

AB, thank you for that explanation.  I look forward to the fix.

Ajay

> Derby 10.3.X sorts VARCHAR column incorrectly when table is indexed and VARCHAR column
contains a value of '00000'
> ------------------------------------------------------------------------------------------------------------------
>
>                 Key: DERBY-3279
>                 URL: https://issues.apache.org/jira/browse/DERBY-3279
>             Project: Derby
>          Issue Type: Bug
>          Components: SQL
>    Affects Versions: 10.3.1.4, 10.3.2.1
>         Environment: Rational Application Developer 7.0.0.2 (Eclipse 3.2.2), J2RE 1.5.0
IBM J9 2.3 Windows XP
>            Reporter: Ajay Bhala
>
> Running the following produces the error seen in Derby 10.3.X but not in 10.2.X nor in
10.1.X.
> Don't know if this related to DERBY-3231.
> First query is incorrectly sorted whereas the second one is okay when there is an index
on the table. 
> If the table is not indexed, the sort works correctly in DESC order.
> ------
> create table CHEESE (
>   CHEESE_CODE       VARCHAR(5),
>   CHEESE_NAME       VARCHAR(20),
>   CHEESE_COST       DECIMAL(7,4)
> );
> create index cheese_index on CHEESE (CHEESE_CODE DESC, CHEESE_NAME DESC, CHEESE_COST
DESC);
> INSERT INTO CHEESE (
>   CHEESE_CODE,
>   CHEESE_NAME,
>   CHEESE_COST)
> VALUES ('00000', 'GOUDA', 001.1234),
>        ('00000', 'EDAM', 002.1111),
>        ('54321', 'EDAM', 008.5646),
>        ('12345', 'GORGONZOLA', 888.2309),
>        ('AAAAA', 'EDAM', 999.8888),
>        ('54321', 'MUENSTER', 077.9545);
> SELECT * FROM CHEESE 
> WHERE (CHEESE_CODE='00000' OR CHEESE_CODE='54321') AND CHEESE_NAME='EDAM'
> ORDER BY CHEESE_CODE DESC, CHEESE_NAME DESC, CHEESE_COST DESC;
> SELECT * FROM CHEESE 
> WHERE (CHEESE_CODE='AAAAA' OR CHEESE_CODE='54321') AND CHEESE_NAME='EDAM'
> ORDER BY CHEESE_CODE DESC, CHEESE_NAME DESC, CHEESE_COST DESC;

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