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http://opensource.atlassian.com/projects/hibernate/browse/HHH-892?page=co...
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Gail Badner commented on HHH-892:
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I just checked a fix for this issue into trunk. It would be great if some folks could give
it a try to see if it works.
I've included a new method, Dialect.replaceResultVariableInOrderByClauseWithPosition()
(yes, I know it's kinda long), to indicate that a select expression position should be
used instead of the "result variable". A "result variable" corresponds
to the alias(es) assigned to an HQL select expression.
By default, false is reeturned. Dialects that require the position should override this
method.
I don't know of any dialects that need to override this method. I'll check the
test results for the dialects we test, and make any necessary corrections tomorrow.
I'll need input from others about dialects we do not regularly use for testing.
Thanks,
Gail
HQL parser does not resolve alias in ORDER BY clause
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Key: HHH-892
URL:
http://opensource.atlassian.com/projects/hibernate/browse/HHH-892
Project: Hibernate Core
Issue Type: Bug
Components: query-hql
Affects Versions: 3.5.4, 3.6.0.Beta1
Environment: Hibernate 3.0.5, MySQL, Tomcat
Reporter: Guido Laures
Assignee: Gail Badner
Fix For: 3.6.x
Attachments: HHH-892.patch, HibernateHavingAliasTest.java
When using an alias for an ORDER BY clause this is not always correctly resolved.
Example:
SELECT SUM(A.x) AS mySum FROM MyClass AS A GROUP BY A.y ORDER BY mySum
does not work because "mySum" is not resolved in the ORDER BY clause which
results in an exception telling that mySum is an unknown column.
Workaround (not to say "hack") is using:
SELECT SUM(A.x) AS mySum FROM MyClass AS A GROUP BY A.y ORDER BY col_0_0_
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