(SELECT distinct extensions.id_extension, nom_extension, description, chemin from 
			extensions inner join liste_offres_extensions on liste_offres_extensions.id_extension=extensions.id_extension 
			 where id_offre=1 and extension_active='oui') 
			 union
			 (SELECT distinct extensions.id_extension, nom_extension, description, chemin from 
			extensions where toutes_offres='oui' and extension_active='oui')
			order by nom_extension<hr>Got error 28 from storage engine