but i dont' want to do this for one instance of my class, so i don't want to specify the id because i don't know it and my result was a list. In fact, i would like to have the latest revision of all my object at a specific date :
date 1 : create obj1 (revision0) create obj2 (revision1)
date 2 : update obj1 (revision2)
date 3 : update obj1 (revision3)
date 4 : update obj1 (revision4)
I would like my query return me my objects at the date "date3" so i would like to have the revision 3 and the revision 1.