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SET @optimize=@@GLOBAL.INNODB_OPTIMIZE_FULLTEXT_ONLY;
SET GLOBAL INNODB_OPTIMIZE_FULLTEXT_ONLY=1;
CREATE TABLE articles (
id INT UNSIGNED AUTO_INCREMENT NOT NULL PRIMARY KEY,
title VARCHAR(200),
content TEXT
) ENGINE= InnoDB;
CREATE FULLTEXT INDEX idx ON articles (title, content);
INSERT INTO articles (title, content) VALUES
('MySQL Tutorial','DBMS stands for MySQL DataBase ...'),
('How To Use MySQL Well','After you went through a ...'),
('Optimizing MySQL','In this tutorial we will show ...'),
('1001 MySQL Tricks','How to use full-text search engine'),
('Go MySQL Tricks','How to use full text search engine');
SET @aux=@@GLOBAL.innodb_ft_aux_table;
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
1001 4 4 1 4 0
after 2 2 1 2 22
database 1 1 1 1 37
dbms 1 1 1 1 15
engine 4 5 2 4 46
engine 4 5 2 5 44
full 4 5 2 4 29
full 4 5 2 5 27
mysql 1 5 5 1 0
mysql 1 5 5 1 31
mysql 1 5 5 2 11
mysql 1 5 5 3 11
mysql 1 5 5 4 5
mysql 1 5 5 5 3
optimizing 3 3 1 3 0
search 4 5 2 4 39
search 4 5 2 5 37
show 3 3 1 3 42
stands 1 1 1 1 20
text 4 5 2 4 34
text 4 5 2 5 32
through 2 2 1 2 37
tricks 4 5 2 4 11
tricks 4 5 2 5 9
tutorial 1 3 2 1 6
tutorial 1 3 2 3 25
use 2 5 3 2 7
use 2 5 3 4 25
use 2 5 3 5 23
well 2 2 1 2 17
went 2 2 1 2 32
you 2 2 1 2 28
OPTIMIZE TABLE articles;
Table Op Msg_type Msg_text
test.articles optimize status OK
SELECT * FROM INFORMATION_SCHEMA.INNODB_FT_INDEX_TABLE;
WORD FIRST_DOC_ID LAST_DOC_ID DOC_COUNT DOC_ID POSITION
1001 4 4 1 4 0
after 2 2 1 2 22
database 1 1 1 1 37
dbms 1 1 1 1 15
engine 4 5 2 4 46
engine 4 5 2 5 44
full 4 5 2 4 29
full 4 5 2 5 27
mysql 1 5 5 1 0
mysql 1 5 5 1 31
mysql 1 5 5 2 11
mysql 1 5 5 3 11
mysql 1 5 5 4 5
mysql 1 5 5 5 3
optimizing 3 3 1 3 0
search 4 5 2 4 39
search 4 5 2 5 37
show 3 3 1 3 42
stands 1 1 1 1 20
text 4 5 2 4 34
text 4 5 2 5 32
through 2 2 1 2 37
tricks 4 5 2 4 11
tricks 4 5 2 5 9
tutorial 1 3 2 1 6
tutorial 1 3 2 3 25
use 2 5 3 2 7
use 2 5 3 4 25
use 2 5 3 5 23
well 2 2 1 2 17
went 2 2 1 2 32
you 2 2 1 2 28
SET @save_dbug=@@debug_dbug;
SET debug_dbug='+d,fts_instrument_result_cache_limit';
SELECT * FROM INFORMATION_SCHEMA.INNODB_FT_INDEX_TABLE;
WORD FIRST_DOC_ID LAST_DOC_ID DOC_COUNT DOC_ID POSITION
1001 4 4 1 4 0
after 2 2 1 2 22
database 1 1 1 1 37
dbms 1 1 1 1 15
engine 4 5 2 4 46
engine 4 5 2 5 44
full 4 5 2 4 29
full 4 5 2 5 27
mysql 1 5 5 1 0
mysql 1 5 5 1 31
mysql 1 5 5 2 11
mysql 1 5 5 3 11
mysql 1 5 5 4 5
mysql 1 5 5 5 3
optimizing 3 3 1 3 0
search 4 5 2 4 39
search 4 5 2 5 37
show 3 3 1 3 42
stands 1 1 1 1 20
text 4 5 2 4 34
text 4 5 2 5 32
through 2 2 1 2 37
tricks 4 5 2 4 11
tricks 4 5 2 5 9
tutorial 1 3 2 1 6
tutorial 1 3 2 3 25
use 2 5 3 2 7
use 2 5 3 4 25
use 2 5 3 5 23
well 2 2 1 2 17
went 2 2 1 2 32
you 2 2 1 2 28
SET debug_dbug=@save_dbug;
DROP TABLE articles;
SET GLOBAL innodb_ft_result_cache_limit=default;
CREATE TABLE articles (
id INT UNSIGNED AUTO_INCREMENT NOT NULL PRIMARY KEY,
title VARCHAR(200),
content TEXT
) ENGINE= InnoDB;
CREATE FULLTEXT INDEX idx_t ON articles (title);
CREATE FULLTEXT INDEX idx_c ON articles (content);
INSERT INTO articles (title, content) VALUES
('MySQL Tutorial','DBMS stands for MySQL DataBase ...'),
('How To Use MySQL Well','After you went through a ...'),
('Optimizing MySQL','In this tutorial we will show ...'),
('1001 MySQL Tricks','How to use full-text search engine'),
('Go MySQL Tricks','How to use full text search engine');
SELECT * FROM INFORMATION_SCHEMA.INNODB_FT_INDEX_CACHE;
WORD FIRST_DOC_ID LAST_DOC_ID DOC_COUNT DOC_ID POSITION
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
1001 4 4 1 4 0
mysql 1 5 5 1 0
mysql 1 5 5 2 11
mysql 1 5 5 3 11
mysql 1 5 5 4 5
mysql 1 5 5 5 3
optimizing 3 3 1 3 0
tricks 4 5 2 4 11
tricks 4 5 2 5 9
tutorial 1 1 1 1 6
use 2 2 1 2 7
well 2 2 1 2 17
after 2 2 1 2 0
database 1 1 1 1 22
dbms 1 1 1 1 0
engine 4 5 2 4 28
engine 4 5 2 5 28
full 4 5 2 4 11
full 4 5 2 5 11
mysql 1 1 1 1 16
search 4 5 2 4 21
search 4 5 2 5 21
show 3 3 1 3 25
stands 1 1 1 1 5
text 4 5 2 4 16
text 4 5 2 5 16
through 2 2 1 2 15
tutorial 3 3 1 3 8
use 4 5 2 4 7
use 4 5 2 5 7
went 2 2 1 2 10
you 2 2 1 2 6
OPTIMIZE TABLE articles;
Table Op Msg_type Msg_text
test.articles optimize status OK
SELECT * FROM INFORMATION_SCHEMA.INNODB_FT_INDEX_TABLE;
WORD FIRST_DOC_ID LAST_DOC_ID DOC_COUNT DOC_ID POSITION
1001 4 4 1 4 0
mysql 1 5 5 1 0
mysql 1 5 5 2 11
mysql 1 5 5 3 11
mysql 1 5 5 4 5
mysql 1 5 5 5 3
optimizing 3 3 1 3 0
tricks 4 5 2 4 11
tricks 4 5 2 5 9
tutorial 1 1 1 1 6
use 2 2 1 2 7
well 2 2 1 2 17
after 2 2 1 2 0
database 1 1 1 1 22
dbms 1 1 1 1 0
engine 4 5 2 4 28
engine 4 5 2 5 28
full 4 5 2 4 11
full 4 5 2 5 11
mysql 1 1 1 1 16
search 4 5 2 4 21
search 4 5 2 5 21
show 3 3 1 3 25
stands 1 1 1 1 5
text 4 5 2 4 16
text 4 5 2 5 16
through 2 2 1 2 15
tutorial 3 3 1 3 8
use 4 5 2 4 7
use 4 5 2 5 7
went 2 2 1 2 10
you 2 2 1 2 6
DROP TABLE articles;
SET NAMES utf8;
CREATE TABLE articles (
id INT UNSIGNED AUTO_INCREMENT NOT NULL PRIMARY KEY,
title VARCHAR(200)
) ENGINE=InnoDB DEFAULT CHARACTER SET utf8 COLLATE utf8_general_ci;
CREATE FULLTEXT INDEX idx ON articles (title);
INSERT INTO articles (title) VALUES
('相亲相爱'),('怜香惜爱'),('充满可爱'),('爱恨交织');
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
充满可爱 3 3 1 3 0
怜香惜爱 2 2 1 2 0
爱恨交织 4 4 1 4 0
相亲相爱 1 1 1 1 0
OPTIMIZE TABLE articles;
Table Op Msg_type Msg_text
test.articles optimize status OK
SELECT * FROM INFORMATION_SCHEMA.INNODB_FT_INDEX_TABLE;
WORD FIRST_DOC_ID LAST_DOC_ID DOC_COUNT DOC_ID POSITION
充满可爱 3 3 1 3 0
怜香惜爱 2 2 1 2 0
爱恨交织 4 4 1 4 0
相亲相爱 1 1 1 1 0
DROP TABLE articles;
CREATE TABLE articles (
id INT UNSIGNED AUTO_INCREMENT NOT NULL PRIMARY KEY,
title VARCHAR(200)
) ENGINE=InnoDB DEFAULT CHARACTER SET gb2312 COLLATE gb2312_chinese_ci;
CREATE FULLTEXT INDEX idx ON articles (title);
INSERT INTO articles (title) VALUES
('相亲相爱'),('怜香惜爱'),('充满可爱'),('爱恨交织');
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
爱恨交织 4 4 1 4 0
充满可爱 3 3 1 3 0
怜香惜爱 2 2 1 2 0
相亲相爱 1 1 1 1 0
OPTIMIZE TABLE articles;
Table Op Msg_type Msg_text
test.articles optimize status OK
SELECT * FROM INFORMATION_SCHEMA.INNODB_FT_INDEX_TABLE;
WORD FIRST_DOC_ID LAST_DOC_ID DOC_COUNT DOC_ID POSITION
怜香惜爱 2 2 1 2 0
充满可爱 3 3 1 3 0
相亲相爱 1 1 1 1 0
爱恨交织 4 4 1 4 0
DROP TABLE articles;
SET GLOBAL innodb_ft_aux_table=@aux;
SET GLOBAL INNODB_OPTIMIZE_FULLTEXT_ONLY=@optimize;
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