Problem with join table mapping ------------------------------- Key: HHH-2874 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-2874 Project: Hibernate3 Issue Type: Bug Affects Versions: 3.2.5 Reporter: vinod dev Priority: Minor I have a the below problem while mapping in hibernate. I am mapping a many - to - many relation. Table A Table B Field X Field A Field Y Field Y Field Z Field C Table C(Many - to - Many or Combination Table) Field X Field Y Field A Mapping part <class name="Table A's class"> <set name="tests" table="Table C" cascade = "all"> <key > <column name="Field X" ></column> <column name="Field Y"></column> </key> <many-to-many class="Table B's Class" > <column name="Field A"/> <column name="Field Y"/> </many-to-many> </set> </class> <class name="Table B's class"> . . . </class> Bold indicates composite primary key. I get Repeated column in mapping for collection. If I remove field Y from either many-to-many or key I get this error. Foreign key (FKD3FBFB2875481687: must have same number of columns as the referenced primary key I would like to know if there is any way we can get rid of this. Please let me know if detail is required. Thanks -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: http://opensource.atlassian.com/projects/hibernate/secure/Administrators.... - For more information on JIRA, see: http://www.atlassian.com/software/jira