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https://issues.apache.org/jira/browse/DERBY-3257?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12559758#action_12559758
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Kathey Marsden commented on DERBY-3257:
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In DERBY-3231, Manish mentioned.
>Mike, I'll take a look at DERBY-3257.
Manish, I was wondering if you have been able to make any progress on this
issue. I'd be willing to help in any way I can, adding tests, committing the
change etc. I am not sure exactly how much else I can offer. I thought I would
try to educate myself by reading the notes attached to DERBY-681, but have to
admit I am a bit lost. Any tips for the novice that you can offer would be
greatly appreciated.
> SELECT with HAVING clause containing OR conditional incorrectly return 1 row
> - should return 2 rows - works correctly with 10.2 DB
> ----------------------------------------------------------------------------------------------------------------------------------
>
> Key: DERBY-3257
> URL: https://issues.apache.org/jira/browse/DERBY-3257
> Project: Derby
> Issue Type: Bug
> Components: SQL
> Affects Versions: 10.3.1.4, 10.3.2.1, 10.4.0.0
> Reporter: Stan Bradbury
> Attachments: TestHaving.java
>
>
> Attached program demonstrates the problem. Only one count is returned
> (matching CODE= GBR) - the count of CODE=CHA is not returned. Works fine
> with versions 10.1 and 10.2 or if program is run using 10.3 jars and 10.2
> database (soft upgrade).
> Query:
> SELECT COUNT(t0.ID) FROM CTS1.TEST_TABLE t0
> GROUP BY t0.CODE
> HAVING (t0.CODE = 'GBR' OR t0.CODE = 'CHA') AND t0.CODE IS NOT NULL
> Incorrect results (see last line):
> Database product: Apache Derby
> Database version: 10.3.1.5 - (579866)
> Driver name: Apache Derby Embedded JDBC Driver
> Driver version: 10.3.1.5 - (579866)
> result: 2
> Correct results:
> Database product: Apache Derby
> Database version: 10.2.2.0 - (485682)
> Driver name: Apache Derby Embedded JDBC Driver
> Driver version: 10.2.2.0 - (485682)
> result: 4
> result: 2
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