[hibernate-issues] [Hibernate-JIRA] Created: (HHH-3511) Sybase - Column alias in subselect doesn't works

[Juraci Paixao Krohling (JIRA)]

Sybase - Column alias in subselect doesn't works
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                 Key: HHH-3511
                 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-3511
             Project: Hibernate Core
          Issue Type: Bug
          Components: core
    Affects Versions: 3.2.4.sp1
         Environment: Branch_3_2_4_SP1_CP with Sybase 15 
            Reporter: Juraci Paixao Krohling


I could not find any reference in documentation to support it, but it seems that column aliasing in sub-selects isn't supported. I could not find any information in the docs which confirms or denies this, but running the test CriteriaQueryTest#testDetachedCriteriaAsSubQuery can confirm this. 

Hibernate generates a query which ends in:
where ? in (select this_.courseCode as y0_ from Course this_ where this_.description like ?)

This fails in Sybase, with this message:
15:29:38,063  WARN JDBCExceptionReporter:77 - SQL Error: 156, SQLState: ZZZZZ
15:29:38,074 ERROR JDBCExceptionReporter:78 - Incorrect syntax near the keyword 'AS'.

Removing all "as" keywords returns the same message, even though the query itself doesn't have it. [1]
Removing the "as $alias" solves the problem. 

The working line is:
where courseCode in (select this_.courseCode  from Course this_ where this_.description like 'test%')


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