mysql 按字段a排序 並編序列號，字段a值相同的編號相同

select  a.test,b.* from (select @y:=@y+1 as test,a.* from (select * from resourcecenter.cm_identify_relation a  group by a.issue_party   ) a,(select @y:=0) d order by issue_party) a,
resourcecenter.cm_identify_relation b 
where a.issue_party=b.issue_party order by b.issue_party

先在表中創建 字段a 的分組排序 並自增序號，
然后使用原來的表 進行根據字段a賦值，並顯示加的序號列