[ http://opensource.atlassian.com/projects/hibernate/browse/HHH-1615?page=c... ] Christian Bauer commented on HHH-1615: -------------------------------------- This has nothing to do with the database dialect. Hibernate simply doesn't expand entity properties in the GROUP BY clause. The examples and tests work because the entity there has no expandable properties, only an identifier. Would you like to submit a patch that implements this feature? -- 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