text: use  friends_and_group_$account_code;
  
  CREATE TABLE if NOT EXISTS `group_subject_dynamics_$subject_id` (
    `id` int(11) unsigned NOT NULL AUTO_INCREMENT,
    `type` tinyint(2) NOT NULL COMMENT '类型 1：评论 2.话题点赞 3.评论点赞',
    `commont_id` int(11) DEFAULT NULL COMMENT '点赞评论的id',
    `content` varchar(255) DEFAULT NULL COMMENT '评论内容',
    `status` tinyint(1) NOT NULL DEFAULT '1' COMMENT '动态状态',
    `user_code` varchar(50) NOT NULL COMMENT '用户code',
    `nickname` varchar(50) NOT NULL COMMENT '昵称',
    `portrait` varchar(255) NOT NULL COMMENT '头像',
    `create_time` int(11) NOT NULL COMMENT '创建时间',
    `commont_likes` int(11) DEFAULT '0' COMMENT '评论点赞数量',
    PRIMARY KEY (`id`),
    KEY `type` (`type`),
    KEY `common_id` (`commont_id`),
    KEY `user_code` (`user_code`)
  ) ENGINE=InnoDB DEFAULT CHARSET=utf8 COMMENT='群话题动态表';