Mysql全文索引实现模糊查询

# vim /etc/my.cnf
[mysqld]
ngram_token_size=2

mysql> show variables like 'ngram_token_size%';
+------------------+-------+
| Variable_name    | Value |
+------------------+-------+
| ngram_token_size | 1     |
+------------------+-------+

CREATE TABLE `t_testfulltext` (
  `id` int(11) unsigned NOT NULL AUTO_INCREMENT,
  `name` varchar(128) DEFAULT NULL,
  `data` int(11) DEFAULT NULL,
  PRIMARY KEY (`id`),
  FULLTEXT KEY `ft_index` (`name`) /*!50100 WITH PARSER `ngram` */ 
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;

SELECT * FROM t_testfulltext WHERE MATCH (name) AGAINST ('今天');