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http://opensource.atlassian.com/projects/hibernate/browse/HHH-7001?page=c...
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Brad Cupit edited comment on HHH-7001 at 1/26/12 3:02 PM:
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I could also provide a test case, but the test would only fail on DB2 for z/OS, which I
suspect isn't available to the Hibernate team.
was (Author: bradcupit):
I could also provide a test case, but it would only fail against DB2 for z/OS, which I
suspect the Hibernate team doesn't have access to.
setMaxResults/offset generates illegal SQL for DB2 mainframe
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Key: HHH-7001
URL:
http://opensource.atlassian.com/projects/hibernate/browse/HHH-7001
Project: Hibernate ORM
Issue Type: Bug
Components: core
Affects Versions: 4.0.0.Final
Environment: DB2 v9 for z/OS (mainframe)
Reporter: Brad Cupit
Labels: db2, dialect
the fix for HHH-2176 works for DB2 LUW (Linux/Unix/Windows) but does not work on DB2 for
z/OS.
Specifically {{order of}} is not supported inside over():
{{select * from ( select inner2_.*, rownumber() over(order by order of inner2_) as
rownumber_ from ( ...}}
I worked around this issue by extending the DB2 dialect and changing the above SQL to:
{{select * from ( select inner2_.*, rownumber() over(order by
inner2_.SORT_COLUMN_ALIAS_HERE) as rownumber_ from ( ...}}
or for cases when the subquery isn't ordered:
{{select * from ( select inner2_.*, rownumber() over() as rownumber_ from ( ...}}
Which works for DB2 LUW and DB2 for z/OS.
I could provide a pull request, but to do this I had to parse the original SQL. *Is the
Hibernate team interested in a pull request if the dialect has to parse SQL?*
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