From org.hibernate.cfg.Configuration:

Index not created by SchemaUpdate --------------------------------- Key: HHH-1012 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-1012 Project: Hibernate3 Issue Type: Improvement Components: metamodel Affects Versions: 3.2.5 Environment: Windows XP, MySQL/PostgreSQL Reporter: Xavier Farret Priority: Minor Attachments: Indexes.patch i'm using an hbm.xml as describe below and the 'hibernate.hbm2ddl.auto' is egal to update. <class table="featurestat" name="....."> <id name="id" type="long" column="idFeatureStat"> <generator class="increment"/> </id> <properties name="fsUniqueValue" unique="true"> .... </properties> <property name="frequency" .../> <property name="idFatherFeature" index="FeatStatDocExtSectFeat" not-null="true" type="long" column="..."/> .... </class> Indexes for pk or unique key are well created, but the index explicity named 'FeatStatDocExtSectFeat' is never created. If i put the property 'hibernate.hbm2ddl.auto' in the cfg.xml as 'create' the index is created. But in my case i have to set my property 'hibernate.hbm2ddl.auto' to update.