[Hibernate-issues] [Hibernate-JIRA] Commented: (HHH-892) HQL parser does not resolve alias in ORDER BY clause

[Jere K. (JIRA) <no...@at...>]

    [ http://opensource.atlassian.com/projects/hibernate/browse/HHH-892?page=comments#action_19636 ] 

Jere Krischel commented on HHH-892:
-----------------------------------

when you use the workaround, will it work the same in all environments?  I'm worried that my "order by LASTNAME2_" will break on a different hibernate.cfg.xml file.  Will Hibernate always generate the same SQL aliases, or will that be dialect dependent?

works:
.createQuery("from "+voType+" where upper(lastName) like upper(:startsWith) and role in (:roles) order by LASTNAME2_ asc")

doesn't work:
.createQuery("from "+voType+" where upper(lastName) like upper(:startsWith) and role in (:roles) order by lastName asc")

generated sql:
Hibernate: select adminuserv0_.ID as ID, adminuserv0_.LOGIN as LOGIN2_, adminuserv0_.LASTNAME as LASTNAME2_, adminuserv0_.FIRSTNAME as FIRSTNAME2_, adminuserv0_.MIDDLENAME as MIDDLENAME2_, adminuserv0_.EMAIL as EMAIL2_, adminuserv0_.STATUS as STATUS2_, adminuserv0_.PASSEXPIRATION as PASSEXPI8_2_, adminuserv0_.FAILEDATTEMPTS as FAILEDAT9_2_, adminuserv0_.CURRENTPASSWORD as CURRENT10_2_, adminuserv0_.CURRENTPWDSALT as CURRENT11_2_, adminuserv0_.CREATEDATE as CREATEDATE2_, adminuserv0_.CREATEDBY as CREATEDBY2_, adminuserv0_.PWDCHANGEDATE as PWDCHAN14_2_, adminuserv0_.PWDCHANGEDBY as PWDCHAN15_2_, adminuserv0_.ACCEPTEDTACDATE as ACCEPTE16_2_, adminuserv0_.PASSWORD as PASSWORD2_, adminuserv0_.ROLE as ROLE2_, adminuserv0_.JSESSIONID as JSESSIONID2_ from SBB.BROKER_ADMIN adminuserv0_ where (upper(adminuserv0_.LASTNAME)like upper(?)) and (adminuserv0_.ROLE in (? , ?)) order by LASTNAME2_ asc

> HQL parser does not resolve alias in ORDER  BY clause
> -----------------------------------------------------
>
>          Key: HHH-892
>          URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-892
>      Project: Hibernate3
>         Type: New Feature
>     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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