Hi All! To speed up queries, I use a subselect in conjunction with an INNER JOIN, something like this: | "SELECT OBJECT(o) FROM Userfood o | WHERE o.id NOT IN | (SELECT uf.id FROM IngredientAllergen ia INNER JOIN ia.userfoods uf | WHERE ia = :ingAll)" | This worked perfectly well under JBoss 4.0.4 GA, but when I switch to JBoss 4.0.5 GA, it doesn't even send the query to the database and I don't get any error message. Sorry if this issue has been handlled before, but I didn't find any references. Thanks for any help, Andreas View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4124724#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...