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