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CREATE TABLE articles (
id INT UNSIGNED AUTO_INCREMENT NOT NULL PRIMARY KEY,
title VARCHAR(200),
body TEXT,
FULLTEXT (title,body)
) ENGINE=InnoDB;
INSERT INTO articles (title,body) VALUES
(NULL, 'mysql good database'),
(NULL, ' mysql good database'),
('', 'mysql good database'),
('', ' mysql good database'),
(' ', 'mysql good database'),
('mysql', 'good database'),
('mysql ', 'good database'),
('mysql', ' good database'),
('mysql good database', ''),
('mysql good database', NULL);
SET GLOBAL innodb_ft_aux_table="test/articles";
SELECT * FROM INFORMATION_SCHEMA.INNODB_FT_INDEX_CACHE;
WORD FIRST_DOC_ID LAST_DOC_ID DOC_COUNT DOC_ID POSITION
database 2 11 10 2 11
database 2 11 10 3 12
database 2 11 10 4 11
database 2 11 10 5 12
database 2 11 10 6 13
database 2 11 10 7 11
database 2 11 10 8 12
database 2 11 10 9 12
database 2 11 10 10 11
database 2 11 10 11 11
good 2 11 10 2 6
good 2 11 10 3 7
good 2 11 10 4 6
good 2 11 10 5 7
good 2 11 10 6 8
good 2 11 10 7 6
good 2 11 10 8 7
good 2 11 10 9 7
good 2 11 10 10 6
good 2 11 10 11 6
mysql 2 11 10 2 0
mysql 2 11 10 3 1
mysql 2 11 10 4 0
mysql 2 11 10 5 1
mysql 2 11 10 6 2
mysql 2 11 10 7 0
mysql 2 11 10 8 0
mysql 2 11 10 9 0
mysql 2 11 10 10 0
mysql 2 11 10 11 0
SET GLOBAL innodb_ft_aux_table=default;
SELECT * FROM articles;
id title body
1 NULL mysql good database
2 NULL mysql good database
3 mysql good database
4 mysql good database
5 mysql good database
6 mysql good database
7 mysql good database
8 mysql good database
9 mysql good database
10 mysql good database NULL
SELECT * FROM articles WHERE MATCH(title, body)
AGAINST('"mysql good database"' IN BOOLEAN MODE);
id title body
1 NULL mysql good database
2 NULL mysql good database
3 mysql good database
4 mysql good database
5 mysql good database
9 mysql good database
10 mysql good database NULL
SELECT * FROM articles WHERE MATCH(title, body)
AGAINST('("mysql good database")' IN BOOLEAN MODE);
id title body
1 NULL mysql good database
2 NULL mysql good database
3 mysql good database
4 mysql good database
5 mysql good database
9 mysql good database
10 mysql good database NULL
DROP TABLE articles;