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BEGIN

declare date_str varchar(8); declare table_prefix varchar(20); set table_prefix='mail_rare_visit_'; set date_str = DATE_FORMAT(CURRENT_DATE(),'%Y%m%d'); set @table_name = concat(table_prefix, date_str); set @s = concat('CREATE TABLE ', @table_name, '(   `id` int(11) NOT NULL AUTO_INCREMENT,   `user_id` int(11) NOT NULL,   `city_id` int(11) NOT NULL,   `email` varchar(300) NOT NULL,   `channel_id` int(11) DEFAULT NULL,   `w_revenue` decimal(7,6) NOT NULL DEFAULT  0.000000,   `w_buy` decimal(7,6) NOT NULL DEFAULT 0.000000,   `w_browse` decimal(7,6) NOT NULL DEFAULT 0.000000,   `rec_goods` varchar(800) DEFAULT NULL,   `update_time` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,   PRIMARY KEY (`id`),   KEY `idx_user_id` (`user_id`),   KEY `idx_city_id` (`user_id`),   KEY `idx_email` (`email`),   KEY `idx_channel_id` (`channel_id`) ) ENGINE=MyISAM DEFAULT CHARSET=utf8;');

prepare stmt from @s; execute stmt;

DEALLOCATE prepare stmt;

end