[hibernate-issues] [Hibernate-JIRA] Created: (HHH-4580) Possible Sybase bug causes AssertionFailure in QueryByExampleTest

[Strong Liu (JIRA)]

Possible Sybase bug causes AssertionFailure in QueryByExampleTest
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                 Key: HHH-4580
                 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-4580
             Project: Hibernate Core
          Issue Type: Bug
          Components: core
    Affects Versions: 3.5.0-Beta-2, 3.5.0.Beta-1, 3.3.2, 3.2.4.sp1
         Environment: sybase 15
            Reporter: Strong Liu


Test QueryByExampleTest.testJunctionNotExpressionQBE fails due to a possible bug in Sybase 15. The same test passes for Sybase 12.5. The test expects two records as a result for a query, but it gets 3. After some debugging with the query that Hibernate generated, I end up with these two simpler ones:

select id from Componentizable where not (name like ? and subName1 like ?)

select id from Componentizable where not (name like 'hibernate' and subName1 like 'ope%')

The first one returns three records, while the second returns two. The interesting part is that if I replace the first parameter in the first query by a hardcoded value ("hibernate"), it still returns 3 records. That means that the problem is probably with the binding of JDBC parameters containing a wildcard % .


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