486                 sql.insert(1, 'FROM %s' % ', '.join(sorted(tables)))

   486                 sql.insert(1, 'FROM %s' % ', '.join(sorted(tables)))

   487             elif self._state.restrictions and self.dbms_helper.needs_from_clause:

   487             elif self._state.restrictions and self.dbms_helper.needs_from_clause:

   488                 sql.insert(1, 'FROM (SELECT 1) AS _T')

   488                 sql.insert(1, 'FROM (SELECT 1) AS _T')

   489             sqls.append('\n'.join(sql))

   489             sqls.append('\n'.join(sql))

   490         if select.need_intersect:

   490         if select.need_intersect:

   492         elif distinct:

   495         elif distinct:

   493             return '\nUNION\n'.join(sqls)

   496             return '\nUNION\n'.join(sqls)

   494         else:

   497         else:

   495             return '\nUNION ALL\n'.join(sqls)

   498             return '\nUNION ALL\n'.join(sqls)

   496         

   499