Question

我有一个使用FULL TEXT索引进行正则表达式匹配的mysql MATCH查询。匹配完成好了。只要我的匹配模式中没有空白区域。例如，这匹配良好：
SELECT * , MATCH ( name ) AGAINST ( 'Lady*' IN BOOLEAN MODE ) AS SCORE

但这不是：
SELECT * , MATCH ( name ) AGAINST ( 'Lady G*' IN BOOLEAN MODE ) AS SCORE

它就像我写的那样匹配 SELECT * , MATCH ( name ) AGAINST ( 'G*' IN BOOLEAN MODE ) AS SCORE

我该如何解决这个问题？

Answer 1

使用IN NATURAL LANGUAGE MODE而不是BOOLEAN。

mysql> CREATE TABLE articles (
    ->  id INT UNSIGNED AUTO_INCREMENT NOT NULL PRIMARY KEY,
    -> title VARCHAR(200),
    -> body TEXT,
    -> FULLTEXT (title,body)
    -> ) ENGINE=MyISAM;
Query OK, 0 rows affected (0.08 sec)

mysql> INSERT INTO articles (title,body) VALUES
    -> ('MySQL Tutorial','DBMS stands for DataBase ...'),
    -> ('1001 MySQL Tricks','1. Never run mysqld as root. 2. ...'),
    ->  ('MySQL Security','When configured properly, MySQL ...');
Query OK, 3 rows affected (0.00 sec)
Records: 3  Duplicates: 0  Warnings: 0

mysql> SELECT * FROM articles
    -> WHERE MATCH (title,body)
    -> AGAINST ('stands for' IN NATURAL LANGUAGE MODE);
+----+----------------+------------------------------+
| id | title          | body                         |
+----+----------------+------------------------------+
|  1 | MySQL Tutorial | DBMS stands for DataBase ... |
+----+----------------+------------------------------+
1 row in set (0.00 sec)

mysql> SELECT * FROM articles WHERE MATCH (title,body) AGAINST ('stands fo*' IN NATURAL LANGUAGE MODE);
+----+----------------+------------------------------+
| id | title          | body                         |
+----+----------------+------------------------------+
|  1 | MySQL Tutorial | DBMS stands for DataBase ... |
+----+----------------+------------------------------+
1 row in set (0.00 sec)

mysql MATCH查询白空间没有被正确考虑

1 个答案: