Here is the configuration of the PostgreSQL DataSource: | <?xml version="1.0" encoding="UTF-8"?> | <datasources> | <local-tx-datasource> | <jndi-name>DefaultDS</jndi-name> | <connection-url>jdbc:postgresql://localhost:5432/ejb</connection-url> | <driver-class>org.postgresql.Driver</driver-class> | <user-name>ejb</user-name> | <password>ejb</password> | <min-pool-size>5</min-pool-size> | <max-pool-size>20</max-pool-size> | <idle-timeout-minutes>0</idle-timeout-minutes> | <track-statements/> | <prepared-statement-cache-size>32</prepared-statement-cache-size> | <metadata> | <type-mapping>PostgreSQL</type-mapping> | </metadata> | </local-tx-datasource> | </datasources> | I changed the name of the hsqldb-ds.xml datasource name to DefaultDS2. But JBoss was not able to create all the relations. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4041004#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...