调试易

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"}]特价
我想查询同时参加了周年庆和特价促销的用户的uid,应该怎么写查询语句？