[hibernate-issues] [Hibernate-JIRA] Resolved: (HHH-5135) "Ambiguous column" exception thrown with columns having the same name as a function registered with the dialect (e.g. to_date, floor)
Gail Badner (JIRA)
noreply at atlassian.com
Wed May 12 15:32:30 EDT 2010
[ http://opensource.atlassian.com/projects/hibernate/browse/HHH-5135?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Gail Badner resolved HHH-5135.
------------------------------
Resolution: Fixed
The unit tests will be fixed by HHH-5220.
> "Ambiguous column" exception thrown with columns having the same name as a function registered with the dialect (e.g. to_date, floor)
> -------------------------------------------------------------------------------------------------------------------------------------
>
> Key: HHH-5135
> URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-5135
> Project: Hibernate Core
> Issue Type: Bug
> Components: core
> Affects Versions: 3.5.0-Final, 3.5.1
> Environment: Hibernate 3.5.1, Oracle 10.2.0.1.0
> Reporter: Vladimir Ivanov
> Assignee: Gail Badner
> Fix For: 3.5.2, 3.6
>
> Attachments: test_case.zip
>
> Original Estimate: 8h
> Time Spent: 7h 31m
> Remaining Estimate: 29m
>
> I have entity 'Period' with property 'toDate' mapped to database column with name 'TO_DATE' (Our database is Oracle 10g). When this entity is queried via HQL, prefix for this entity is missed. Following SQL query is produced:
> Hibernate:
> /*
> from
> Period p */ select
> *
> from
> ( select
> period0_.ID as ID44_,
> period0_.TXN_VER as TXN3_44_,
> period0_.FROM_DATE as FROM4_44_,
> TO_DATE as TO5_44_,
> period0_.POSITION_MONTH as POSITION7_44_,
> period0_.IS_CLOSE as IS12_44_,
> period0_.IS_OPEN as IS13_44_,
> period0_.DISC_TYPE as DISC2_44_
> from
> SOME_SCHEMA.T_PERIOD period0_ )
> where
> rownum <= ?
> This leads to database error in case of more advanced query (with joins etc). For example, we have following error in production: java.sql.SQLException: ORA-00918: column ambiguously defined
> Probably the reason of this behaviour is that Hibernate tries to interpret 'TO_DATE' as the name of SQL function.
> In Hibernate 3.3.2.GA prefix is added correctly.
> Domain object, DAO, Test and Hibernate configuration are in the attachment.
> I used Spring framework to configure test.
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