Salut!
a priori l'erreur vient du where:
essaye de modifier ta requete comme ca,
SELECT * FROM table WHERE id=1 IN (SELECT * FROM `test` WHERE level>='0' GROUP BY id_origine)
SELECT * FROM table WHERE id IN (SELECT * FROM `test` WHERE level>='0' GROUP BY id_origine)
et tiens nous au courant :)
@+
Na kaer eo va Breizh,
gand ar mor glaz èn-dro dezi !