[hibernate-issues] [Hibernate-JIRA] Commented: (HHH-892) HQL parser does not resolve alias in ORDER BY clause
Matt Fozard (JIRA)
noreply at atlassian.com
Wed Jul 1 11:11:16 EDT 2009
[ http://opensource.atlassian.com/projects/hibernate/browse/HHH-892?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=33509#action_33509 ]
Matt Fozard commented on HHH-892:
---------------------------------
I also would welcome an explanation of why this isn't a bug.
Perhaps someone could explain it in the HQL documentation, expand the "14.11 Order by" section from its hugely comprehensive 4 lines of text on this topic.
> HQL parser does not resolve alias in ORDER BY clause
> -----------------------------------------------------
>
> Key: HHH-892
> URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-892
> Project: Hibernate Core
> Issue Type: Bug
> Components: query-hql
> Affects Versions: 3.0.5
> Environment: Hibernate 3.0.5, MySQL, Tomcat
> Reporter: Guido Laures
> Priority: Minor
>
> 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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