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https://issues.apache.org/jira/browse/DERBY-6567?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14010024#comment-14010024
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Mike Matrigali commented on DERBY-6567:
---------------------------------------
review of list of issues fixed in 10.11 but not in 10.10 for possible
compatibility issues in upcoming release.
Behavior change is a bug fix, which could be applied to 10.10. May cause
application incompatibility, but
would fall under "bug compatible" and would not stop us from backporting. Fix
looks valid to backport to 10.10 to me.
> Incorrect nullability for CASE expression with parameter
> --------------------------------------------------------
>
> Key: DERBY-6567
> URL: https://issues.apache.org/jira/browse/DERBY-6567
> Project: Derby
> Issue Type: Bug
> Components: SQL
> Affects Versions: 10.10.2.0
> Reporter: Knut Anders Hatlen
> Assignee: Knut Anders Hatlen
> Fix For: 10.11.0.0
>
> Attachments: d6567-1a.diff
>
>
> This JUnit test code fails because it detects that the query returns null
> even though the result column is reported as not nullable:
> {code}
> PreparedStatement ps = prepareStatement(
> "values case when false then 1 else ? end");
> ps.setNull(1, Types.INTEGER);
> JDBC.assertSingleValueResultSet(ps.executeQuery(), null);
> {code}
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