Mysql 与中等表（约3m条记录）上的查询性能类似

我有个小问题。我有一个大约300万个城市的表格，我需要在上面运行一个类似于的查询

问题是，完成查询大约需要9秒。你知道我该如何快速完成吗

查询是：

SELECT * FROM `cities` WHERE name LIKE '%test%'

---

尝试使用全文索引。InnoDB现在也有全文索引

CREATE FULLTEXT INDEX idx_name_ft ON cities  (`name`);

然后像这样使用：

SELECT * FROM cities WHERE MATCH(`name`) AGAINST('test');

样本

我创建了一个包含5000000行的简单示例表，这是我的结果：

MariaDB [yourschema]> SELECT * FROM cities WHERE `name` LIKE '%test%';
+---------+------------------------------------------------------+
| id      | name                                                 |
+---------+------------------------------------------------------+
|       7 | name of the city is test more text here              |
|    1096 | name of the city is other more text here - test      |
|    1109 | test name of the city is other more text here        |
| 4998932 | name of the city is other more text here - last test |
| 4999699 | name of the city is other more text here - test some |
| 4999997 | name of the city is - test again - more text here    |
+---------+------------------------------------------------------+
6 rows in set (4.29 sec)

MariaDB [yourschema]> SELECT * FROM cities WHERE MATCH(`name`) AGAINST('test');
+---------+------------------------------------------------------+
| id      | name                                                 |
+---------+------------------------------------------------------+
|       7 | name of the city is test more text here              |
|    1096 | name of the city is other more text here - test      |
|    1109 | test name of the city is other more text here        |
| 4998932 | name of the city is other more text here - last test |
| 4999699 | name of the city is other more text here - test some |
| 4999997 | name of the city is - test again - more text here    |
+---------+------------------------------------------------------+
6 rows in set (0.60 sec)

MariaDB [yourschema]>

---

尝试使用全文索引。InnoDB现在也有全文索引

CREATE FULLTEXT INDEX idx_name_ft ON cities  (`name`);

然后像这样使用：

SELECT * FROM cities WHERE MATCH(`name`) AGAINST('test');

样本

我创建了一个包含5000000行的简单示例表，这是我的结果：

MariaDB [yourschema]> SELECT * FROM cities WHERE `name` LIKE '%test%';
+---------+------------------------------------------------------+
| id      | name                                                 |
+---------+------------------------------------------------------+
|       7 | name of the city is test more text here              |
|    1096 | name of the city is other more text here - test      |
|    1109 | test name of the city is other more text here        |
| 4998932 | name of the city is other more text here - last test |
| 4999699 | name of the city is other more text here - test some |
| 4999997 | name of the city is - test again - more text here    |
+---------+------------------------------------------------------+
6 rows in set (4.29 sec)

MariaDB [yourschema]> SELECT * FROM cities WHERE MATCH(`name`) AGAINST('test');
+---------+------------------------------------------------------+
| id      | name                                                 |
+---------+------------------------------------------------------+
|       7 | name of the city is test more text here              |
|    1096 | name of the city is other more text here - test      |
|    1109 | test name of the city is other more text here        |
| 4998932 | name of the city is other more text here - last test |
| 4999699 | name of the city is other more text here - test some |
| 4999997 | name of the city is - test again - more text here    |
+---------+------------------------------------------------------+
6 rows in set (0.60 sec)

MariaDB [yourschema]>

---

你知道，我们不是巫师。发布查询！可能的重复将您正在搜索的查询词放入另一列中，为该列建立索引，并通过直接比较您的词来搜索新列，而不使用

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，您知道，我们不是向导。发布查询！可能的重复项将您正在搜索的查询词放入另一列中，为该列建立索引，并通过直接比较您的词与新列进行搜索，而不使用

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