mysql json数组取值、查询

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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"', '$')