Hi again, I don't know how to check "execution plan". Which debug must I activate? thanks, Ignacio View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4076946#4076946 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4076946