Hello, I'm developing an application using JBoss 4.2.3. I have to store some XML documents in a database and I have to read, and update them. These documents will be encrypted eventually so I have defined an entity like this: @Entity public abstract class Document implements Serializable { @Id @GeneratedValue protected long id; @Lob protected byte[] content; protected String username; .................... getters and setters .................... } I'm using PostgreSQL 8.3 as my backend. Hibernate generates a table for this entity with a field of type 'oid' for the row content and it stores the real content in the common table pg_largeobjects. The problem is that, everytime that I update the field content, it generates a new entry in pg_largeobjects and updates the oid field but it does not delete the old object, so in every update to my document, I get a new copy of all the content in the database. Is this the normal behavior? I'd like to either, use the same record for the update or to generate a new one, but delete the old one, since it's no longer needed. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4198226#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...