feat: 增加redis,将follow_and_follower_list改造成redis,这个表弃用 #95
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数据库表follow_and_follower_list已弃用,用redis来保存
FollowAndFollowerList:follower_id:3 // 标识ID为3的用户的粉丝set
FollowAndFollowerList:user_id:3 // 标识ID为3的用户的关注set
影响的接口:
/douyin/relation/action
/douyin/relation/follow/list
/douyin/relation/follower/list
将来user_info中的follw_count和follower_count也可以删除,通过读取redis,set中的数量来确定