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https://issues.apache.org/jira/browse/DERBY-6577?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14210050#comment-14210050
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ASF subversion and git services commented on DERBY-6577:
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Commit 1639402 from [~mamtas] in branch 'code/branches/10.10'
[ https://svn.apache.org/r1639402 ]
DERBY-6577(Quantified comparison returns wrong result in CASE, COALESCE, IN and
BETWEEN)
Back porting to 10.10
> Quantified comparison returns wrong result in CASE, COALESCE, IN and BETWEEN
> ----------------------------------------------------------------------------
>
> Key: DERBY-6577
> URL: https://issues.apache.org/jira/browse/DERBY-6577
> Project: Derby
> Issue Type: Bug
> Components: SQL
> Affects Versions: 10.10.2.0, 10.11.1.1
> Reporter: Knut Anders Hatlen
> Assignee: Mamta A. Satoor
> Fix For: 10.11.1.1
>
> Attachments: d6577-1a.diff, d6577-2a.diff
>
>
> I'm seeing this on head of trunk:
> {noformat}
> ij> select c, c = all (values 'Y'), case when c = all (values 'Y') then true
> else false end from (values 'Y', 'N') v(c);
> C|2 |3
> -------------
> Y|true |false
> N|false|true
> 2 rows selected
> {noformat}
> Column 2 and column 3 should have the same value, but something seems to go
> wrong when the quantified comparison is used in a CASE expression.
> I'm seeing the expected result on 10.10.2.0, though:
> {noformat}
> ij> select c, c = all (values 'Y'), case when c = all (values 'Y') then true
> else false end from (values 'Y', 'N') v(c);
> C|2 |3
> -------------
> Y|true |true
> N|false|false
> 2 rows selected
> {noformat}
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