mysql json数组取值、查询

来源于网络，未验证。

数据表

id	uid	info
1	1001	{"name":"周年庆","status":0,"addtime":"2017-10-10"}
2	1002	[ {"name":"周年庆","status":0,"addtime":"2017-10-11"},{"name":"特价促销","status":0,"addtime":"2017-10-12"}]
3	1003	[ {"name":"特价促销","status":0,"addtime":"2017-10-12"},{"name":"国庆促销","status":0,"addtime":"2017-09-28"}]

取“特价促销”的用户数据

select * from tb
where info->\'$.name\' = \'特价促销\'  or JSON_CONTAINS(info->\'$[*].name\', \'"特价促销"\', \'$\')