我在表（squirrel_users中有这样一条记录，该记录在email上具有全文本索引。
+-----------+----------------------------+
| record_id | email |
+-----------+----------------------------+
| 7065 | s.j.e.hennessyexample.com |
+-----------+----------------------------+
但是，如果我在布尔模式下对电子邮件进行匹配，则不会得到分数：
mysql> SELECT record_id, email,
(MATCH (email) AGAINST ("+s.j.e.hennessyexample.com" IN BOOLEAN MODE)) AS score
FROM squirrel_users
WHERE record_id = 7065 ORDER BY score DESC;
+-----------+----------------------------+-------+
| record_id | email | score |
+-----------+----------------------------+-------+
| 7065 | s.j.e.hennessyexample.com | 0 |
+-----------+----------------------------+-------+
有人在这里+<exact saved data>上看到为什么分数为零吗？也许和句号有关？
啊哈-如果我将其用引号引起来，那么它会起作用：
mysql> SELECT record_id, email,
(MATCH (email) AGAINST ("+\"s.j.e.hennessyexample.com\"" IN BOOLEAN MODE)) AS score
FROM squirrel_users
WHERE record_id = 7065 ORDER BY score DESC;
+-----------+----------------------------+--------------------+
| record_id | email | score |
+-----------+----------------------------+--------------------+
| 7065 | s.j.e.hennessyexample.com | 25.576061248779297 |
+-----------+----------------------------+--------------------+
1 row in set (0.00 sec)
然后，句号发生了什么-他们是否将其分解，因此将其视为单独的单词？