[rqlrewrite] if inlined relation has to be moved to a subquery, take care of the object of the relation (closes #1945725) As the object of the relation is moved to the subquery, all variables/relations representing some of its attributes or inlined relations should be moved there as well. This avoid error such as "BadRQLQuery: variable AF should be selected by the subquery" on security insertion.

if repo.system_source.dbdriver == 'postgres':
    sql('ALTER TABLE appears ADD COLUMN weight float')
    sql('UPDATE appears SET weight=1.0 ')