specific criteria generates incorrect SQL command (missing join) ---------------------------------------------------------------- Key: HHH-1650 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-1650 Project: Hibernate3 Issue Type: Bug Components: core Affects Versions: 3.1.3 Environment: 3.1.3, Oracle 9.1 Reporter: Martin Zdila Priority: Minor Hello Mapping: <hibernate-mapping> <class name="MessageKey" table="KFE_MESSAGE_KEY"> <id name="id" column="MESSAGE_KEY_ID" node="@id"> <generator class="native"> <param name="sequence">KFE_MESSAGE_KEY_ID_SEQ</param> </generator> </id> <property name="key" column="MESSAGE_KEY" not-null="false" /> <map name="messages" cascade="all" inverse="true" order-by="LANGUAGE_ID" embed-xml="false"> <key column="MESSAGE_KEY_ID" /> <map-key type="java.lang.String" formula="LANGUAGE_ID" /> <one-to-many class="Message" /> </map> </class> <class name="Message" table="KFE_MESSAGE"> <composite-id> <key-many-to-one name="language" column="LANGUAGE_ID" class="Language" /> <key-many-to-one name="messageKey" column="MESSAGE_KEY_ID" class="MessageKey" /> </composite-id> <property name="value" column="MESSAGE_VALUE" length="255" /> </class> </hibernate-mapping> This doesn't work: session.createCriteria(Message.class) .add(Restrictions.eq("language", language)).createCriteria("messageKey").add(Restrictions.isNotNull("key")).list(); Generated incorrect SQL command: select this_.LANGUAGE_ID as LANGUAGE1_2_0_, this_.MESSAGE_KEY_ID as MESSAGE2_2_0_, this_.MESSAGE_VALUE as MESSAGE3_2_0_ from KFE_MESSAGE this_ where this_.LANGUAGE_ID=? and messagekey1_.MESSAGE_KEY is not null Error: java.sql.SQLException: ORA-00904: "MESSAGEKEY1_"."MESSAGE_KEY": invalid identifier Workaround using HQL works: session.createQuery("FROM Message AS msg WHERE msg.messageKey.key IS NOT NULL AND msg.language = :lang").setParameter("lang", language).list(); Tanks in advance for fixing