Cannot define unique indexes in mapping doc, SchemaExport cannot produce unique index DDL ----------------------------------------------------------------------------------------- Key: HHH-983 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-983 Project: Hibernate Core Issue Type: Bug Components: core Affects Versions: 3.0.5 Environment: Hibernate 3.0.5 Solaris 10 x86 MS SQL Server (MSDE) Reporter: Nicholas Gianniotis References: http://forum.hibernate.org/viewtopic.php?t=947566 http://opensource2.atlassian.com/projects/hibernate/browse/HHH-975 The offered solution, unique-key="name", does not work for me. Could you please elaborate, or explain the misunderstanding? Thank you.