[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)

"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 Attachments: test_case.zip Original Estimate: 8h Remaining Estimate: 8h 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.