MariaDB10.2.6啟用Mroonga存儲引擎用于全文索引

如同翻譯的那樣，Mroonga是一個適用于MySQL的存儲引擎。它為所有MySQL用戶提供了快速的全文搜索功能。

這里直接演示怎么在MariaDB上啟用mroonga存儲引擎

1）加載mroonga插件

MariaDB [(none)]>INSTALL SONAME 'ha_mroonga';

MariaDB [(none)]> CREATE FUNCTION last_insert_grn_id RETURNS INTEGER SONAME 'ha_mroonga.so';

2）建表測試一下

MariaDB [(none)]>create database jerry;

MariaDB [(none)]>use jerry

MariaDB [jerry]> create table t1 (id int not null,name varchar(100)not null,notes text,fulltext index(notes))engine=mroonga;

3）胡亂插入一些數據

MariaDB [jerry]> insert into t1 values(1,'擦擦擦','我也不會告訴你');

Query OK, 1 row affected (0.00 sec)

MariaDB [jerry]> insert into t1 values(2,'啦啦啦','我也不會告訴你');

Query OK, 1 row affected (0.01 sec)

MariaDB [jerry]> insert into t1 values(3,'dashaba','森馬服飾');

Query OK, 1 row affected (0.00 sec)

MariaDB [jerry]> insert into t1 values(4,'victor','大森馬投資有限公司');

Query OK, 1 row affected (0.00 sec)

MariaDB [jerry]> insert into t1 values(5,'kukumimilulu','森馬跨境電商有限公司');

Query OK, 1 row affected (0.00 sec)

MariaDB [jerry]> insert into t1 values(6,'王思聰','王爸爸聯合大森馬跨境電商有限公司');

Query OK, 1 row affected (0.00 sec)

4）用如下命令查詢

MariaDB [jerry]> select * from t1 where match(notes) against('大森馬' in BOOLEAN MODE);

+----+-----------+--------------------------------------------------+

| id | name      | notes                                            |

+----+-----------+--------------------------------------------------+

|  4 | victor    | 大森馬投資有限公司                               |

|  6 | 王思聰    | 王爸爸聯合大森馬跨境電商有限公司                 |

+----+-----------+--------------------------------------------------+

2 rows in set (0.00 sec)

5 ) 通過執行計劃我們可以看到已經用到notes這個全文索引，并且只需要掃描一行

MariaDB [jerry]> explain select * from t1 where match(notes) against('大森馬' in BOOLEAN MODE);

+------+-------------+-------+----------+---------------+-------+---------+------+------+-----------------------------------+

| id   | select_type | table | type     | possible_keys | key   | key_len | ref  | rows | Extra                             |

+------+-------------+-------+----------+---------------+-------+---------+------+------+-----------------------------------+

|    1 | SIMPLE      | t1    | fulltext | notes         | notes | 0       |      |    1 | Using where with pushed condition |

+------+-------------+-------+----------+---------------+-------+---------+------+------+-----------------------------------+

1 row in set (0.00 sec)