information_schema系列十

innodb_optimize_fulltext_only=ON;

mysql> use test;
mysql> CREATE TABLE articles (
      id INT UNSIGNED AUTO_INCREMENT NOT NULL PRIMARY KEY,
      title VARCHAR(200),
      body TEXT,
      FULLTEXT (title,body)
    ) ENGINE=InnoDB;

mysql> INSERT INTO articles (title,body) VALUES
    (‘MySQL Tutorial‘,‘DBMS stands for DataBase ...‘),
    (‘How To Use MySQL Well‘,‘After you went through a ...‘),
    (‘Optimizing MySQL‘,‘In this tutorial we will show ...‘),
    (‘1001 MySQL Tricks‘,‘1. Never run mysqld as root. 2. ...‘),
    (‘MySQL vs. YourSQL‘,‘In the following database comparison ...‘),
    (‘MySQL Security‘,‘When configured properly, MySQL ...‘);

mysql> SET GLOBAL innodb_optimize_fulltext_only=ON;
Query OK, 0 rows affected (0.00 sec)

mysql> OPTIMIZE TABLE articles;
+---------------+----------+----------+----------+
| Table         | Op       | Msg_type | Msg_text |
+---------------+----------+----------+----------+
| test.articles | optimize | status   | OK       |
+---------------+----------+----------+----------+
1 row in set (0.00 sec)

mysql> SET GLOBAL innodb_ft_aux_table = ‘test/articles‘;
Query OK, 0 rows affected (0.00 sec)

mysql> USE INFORMATION_SCHEMA;

mysql> SELECT word, doc_count, doc_id, position FROM INNODB_FT_INDEX_TABLE LIMIT 5;
+------------+-----------+--------+----------+
| word       | doc_count | doc_id | position |
+------------+-----------+--------+----------+
| 1001       |         1 |      4 |        0 |
| after      |         1 |      2 |       22 |
| comparison |         1 |      5 |       44 |
| configured |         1 |      6 |       20 |
| database   |         2 |      1 |       31 |
+------------+-----------+--------+----------+