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drop table if exists t1,t2,t3;
CREATE TABLE t1 (a VARCHAR(200), b TEXT, FULLTEXT (a,b));
INSERT INTO t1 VALUES('MySQL has now support', 'for full-text search'),
('Full-text indexes', 'are called collections'),
('Only MyISAM tables','support collections'),
('Function MATCH ... AGAINST()','is used to do a search'),
('Full-text search in MySQL', 'implements vector space model');
select * from t1 where MATCH(a,b) AGAINST ("collections");
a b
Only MyISAM tables support collections
Full-text indexes are called collections
explain extended select * from t1 where MATCH(a,b) AGAINST ("collections");
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 fulltext a a 0 1 Using where
Warnings:
Note 1003 select high_priority test.t1.a AS `a`,test.t1.b AS `b` from test.t1 where (match test.t1.a,test.t1.b against (_latin1'collections'))
select * from t1 where MATCH(a,b) AGAINST ("indexes");
a b
Full-text indexes are called collections
select * from t1 where MATCH(a,b) AGAINST ("indexes collections");
a b
Full-text indexes are called collections
Only MyISAM tables support collections
select * from t1 where MATCH(a,b) AGAINST ("only");
a b
select * from t1 where MATCH(a,b) AGAINST ("collections" WITH QUERY EXPANSION);
a b
Only MyISAM tables support collections
Full-text indexes are called collections
MySQL has now support for full-text search
select * from t1 where MATCH(a,b) AGAINST ("indexes" WITH QUERY EXPANSION);
a b
Full-text indexes are called collections
Only MyISAM tables support collections
select * from t1 where MATCH(a,b) AGAINST ("indexes collections" WITH QUERY EXPANSION);
a b
Full-text indexes are called collections
Only MyISAM tables support collections
MySQL has now support for full-text search
explain select * from t1 where MATCH(a,b) AGAINST ("collections");
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 fulltext a a 0 1 Using where
explain select * from t1 where MATCH(a,b) AGAINST ("collections")>0;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 fulltext a a 0 1 Using where
explain select * from t1 where MATCH(a,b) AGAINST ("collections")>1;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 fulltext a a 0 1 Using where
explain select * from t1 where MATCH(a,b) AGAINST ("collections")>=0;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 ALL NULL NULL NULL NULL 5 Using where
explain select * from t1 where MATCH(a,b) AGAINST ("collections")>=1;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 fulltext a a 0 1 Using where
explain select * from t1 where 0<MATCH(a,b) AGAINST ("collections");
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 fulltext a a 0 1 Using where
explain select * from t1 where 1<MATCH(a,b) AGAINST ("collections");
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 fulltext a a 0 1 Using where
explain select * from t1 where 0<=MATCH(a,b) AGAINST ("collections");
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 ALL NULL NULL NULL NULL 5 Using where
explain select * from t1 where 1<=MATCH(a,b) AGAINST ("collections");
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 fulltext a a 0 1 Using where
explain select * from t1 where MATCH(a,b) AGAINST ("collections")>0 and a like '%ll%';
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 fulltext a a 0 1 Using where
select * from t1 where MATCH(a,b) AGAINST("support -collections" IN BOOLEAN MODE);
a b
MySQL has now support for full-text search
explain extended select * from t1 where MATCH(a,b) AGAINST("support -collections" IN BOOLEAN MODE);
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 fulltext a a 0 1 Using where
Warnings:
Note 1003 select high_priority test.t1.a AS `a`,test.t1.b AS `b` from test.t1 where (match test.t1.a,test.t1.b against (_latin1'support -collections' in boolean mode))
select * from t1 where MATCH(a,b) AGAINST("support collections" IN BOOLEAN MODE);
a b
MySQL has now support for full-text search
Full-text indexes are called collections
Only MyISAM tables support collections
select * from t1 where MATCH(a,b) AGAINST("support +collections" IN BOOLEAN MODE);
a b
Full-text indexes are called collections
Only MyISAM tables support collections
select * from t1 where MATCH(a,b) AGAINST("sear*" IN BOOLEAN MODE);
a b
MySQL has now support for full-text search
Function MATCH ... AGAINST() is used to do a search
Full-text search in MySQL implements vector space model
select * from t1 where MATCH(a,b) AGAINST("+support +collections" IN BOOLEAN MODE);
a b
Only MyISAM tables support collections
select * from t1 where MATCH(a,b) AGAINST("+search" IN BOOLEAN MODE);
a b
MySQL has now support for full-text search
Function MATCH ... AGAINST() is used to do a search
Full-text search in MySQL implements vector space model
select * from t1 where MATCH(a,b) AGAINST("+search +(support vector)" IN BOOLEAN MODE);
a b
MySQL has now support for full-text search
Full-text search in MySQL implements vector space model
select * from t1 where MATCH(a,b) AGAINST("+search -(support vector)" IN BOOLEAN MODE);
a b
Function MATCH ... AGAINST() is used to do a search
select *, MATCH(a,b) AGAINST("support collections" IN BOOLEAN MODE) as x from t1;
a b x
MySQL has now support for full-text search 1
Full-text indexes are called collections 1
Only MyISAM tables support collections 2
Function MATCH ... AGAINST() is used to do a search 0
Full-text search in MySQL implements vector space model 0
select *, MATCH(a,b) AGAINST("collections support" IN BOOLEAN MODE) as x from t1;
a b x
MySQL has now support for full-text search 1
Full-text indexes are called collections 1
Only MyISAM tables support collections 2
Function MATCH ... AGAINST() is used to do a search 0
Full-text search in MySQL implements vector space model 0
select * from t1 where MATCH a,b AGAINST ("+call* +coll*" IN BOOLEAN MODE);
a b
Full-text indexes are called collections
select * from t1 where MATCH a,b AGAINST ('"support now"' IN BOOLEAN MODE);
a b
select * from t1 where MATCH a,b AGAINST ('"Now sUPPort"' IN BOOLEAN MODE);
a b
MySQL has now support for full-text search
select * from t1 where MATCH a,b AGAINST ('"text search" "now support"' IN BOOLEAN MODE);
a b
MySQL has now support for full-text search
Full-text search in MySQL implements vector space model
select * from t1 where MATCH a,b AGAINST ('"text search" -"now support"' IN BOOLEAN MODE);
a b
Full-text search in MySQL implements vector space model
select * from t1 where MATCH a,b AGAINST ('"text search" +"now support"' IN BOOLEAN MODE);
a b
MySQL has now support for full-text search
select * from t1 where MATCH a,b AGAINST ('"text i"' IN BOOLEAN MODE);
a b
select * from t1 where MATCH a,b AGAINST ('"xt indexes"' IN BOOLEAN MODE);
a b
select * from t1 where MATCH a AGAINST ("search" IN BOOLEAN MODE);
a b
Full-text search in MySQL implements vector space model
select * from t1 where MATCH b AGAINST ("sear*" IN BOOLEAN MODE);
a b
MySQL has now support for full-text search
Function MATCH ... AGAINST() is used to do a search
select * from t1 where MATCH(a,b) AGAINST ("collections") UNION ALL select * from t1 where MATCH(a,b) AGAINST ("indexes");
a b
Only MyISAM tables support collections
Full-text indexes are called collections
Full-text indexes are called collections
delete from t1 where a like "MySQL%";
update t1 set a='some test foobar' where MATCH a,b AGAINST ('model');
delete from t1 where MATCH(a,b) AGAINST ("indexes");
select * from t1;
a b
Only MyISAM tables support collections
Function MATCH ... AGAINST() is used to do a search
some test foobar implements vector space model
drop table t1;
CREATE TABLE t1 (
id int(11),
ticket int(11),
KEY ti (id),
KEY tit (ticket)
);
INSERT INTO t1 VALUES (2,3),(1,2);
CREATE TABLE t2 (
ticket int(11),
inhalt text,
KEY tig (ticket),
fulltext index tix (inhalt)
);
INSERT INTO t2 VALUES (1,'foo'),(2,'bar'),(3,'foobar');
select t1.id FROM t2 as ttxt,t1,t1 as ticket2
WHERE ticket2.id = ttxt.ticket AND t1.id = ticket2.ticket and
match(ttxt.inhalt) against ('foobar');
id
select t1.id FROM t2 as ttxt,t1 INNER JOIN t1 as ticket2 ON
ticket2.id = ttxt.ticket
WHERE t1.id = ticket2.ticket and match(ttxt.inhalt) against ('foobar');
id
INSERT INTO t1 VALUES (3,3);
select t1.id FROM t2 as ttxt,t1
INNER JOIN t1 as ticket2 ON ticket2.id = ttxt.ticket
WHERE t1.id = ticket2.ticket and
match(ttxt.inhalt) against ('foobar');
id
3
show keys from t2;
Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment
t2 1 tig 1 ticket A NULL NULL NULL YES BTREE
t2 1 tix 1 inhalt A NULL 1 NULL YES FULLTEXT
show create table t2;
Table Create Table
t2 CREATE TABLE `t2` (
`ticket` int(11) default NULL,
`inhalt` text,
KEY `tig` (`ticket`),
FULLTEXT KEY `tix` (`inhalt`)
) TYPE=MyISAM CHARSET=latin1
select * from t2 where MATCH inhalt AGAINST (NULL);
ticket inhalt
select * from t2 where MATCH inhalt AGAINST ('foobar');
ticket inhalt
3 foobar
select * from t2 having MATCH inhalt AGAINST ('foobar');
ticket inhalt
3 foobar
CREATE TABLE t3 (t int(11),i text,fulltext tix (t,i));
ERROR HY000: Column 't' cannot be part of FULLTEXT index
CREATE TABLE t3 (t int(11),i text,
j varchar(200) CHARACTER SET latin2,
fulltext tix (i,j));
ERROR HY000: Column 'j' cannot be part of FULLTEXT index
CREATE TABLE t3 (
ticket int(11),
inhalt text,
KEY tig (ticket),
fulltext index tix (inhalt)
);
select * from t2 where MATCH inhalt AGAINST (t2.inhalt);
ERROR HY000: Wrong arguments to AGAINST
select * from t2 where MATCH ticket AGAINST ('foobar');
ERROR HY000: Can't find FULLTEXT index matching the column list
select * from t2,t3 where MATCH (t2.inhalt,t3.inhalt) AGAINST ('foobar');
ERROR HY000: Wrong arguments to MATCH
drop table t1,t2,t3;
CREATE TABLE t1 (
id int(11) auto_increment,
title varchar(100) default '',
PRIMARY KEY (id),
KEY ind5 (title)
) TYPE=MyISAM;
CREATE FULLTEXT INDEX ft1 ON t1(title);
insert into t1 (title) values ('this is a test');
select * from t1 where match title against ('test' in boolean mode);
id title
1 this is a test
update t1 set title='this is A test' where id=1;
check table t1;
Table Op Msg_type Msg_text
test.t1 check status OK
update t1 set title='this test once revealed a bug' where id=1;
select * from t1;
id title
1 this test once revealed a bug
update t1 set title=NULL where id=1;
drop table t1;
CREATE TABLE t1 (a int(11), b text, FULLTEXT KEY (b)) TYPE=MyISAM;
insert into t1 values (1,"I wonder why the fulltext index doesnt work?");
SELECT * from t1 where MATCH (b) AGAINST ('apples');
a b
insert into t1 values (2,"fullaaa fullzzz");
select * from t1 where match b against ('full*' in boolean mode);
a b
2 fullaaa fullzzz
1 I wonder why the fulltext index doesnt work?
drop table t1;
CREATE TABLE t1 ( id int(11) NOT NULL auto_increment primary key, mytext text NOT NULL, FULLTEXT KEY mytext (mytext)) TYPE=MyISAM;
INSERT INTO t1 VALUES (1,'my small mouse'),(2,'la-la-la'),(3,'It is so funny'),(4,'MySQL Tutorial');
select 8 from t1;
8
8
8
8
8
drop table t1;
create table t1 (a text, fulltext key (a));
insert into t1 values ('aaaa');
repair table t1;
Table Op Msg_type Msg_text
test.t1 repair status OK
select * from t1 where match (a) against ('aaaa');
a
drop table t1;
create table t1 ( ref_mag text not null, fulltext (ref_mag));
insert into t1 values ('test');
select ref_mag from t1 where match ref_mag against ('+test' in boolean mode);
ref_mag
test
alter table t1 change ref_mag ref_mag char (255) not null;
select ref_mag from t1 where match ref_mag against ('+test' in boolean mode);
ref_mag
test
drop table t1;
create table t1 (t1_id int(11) primary key, name varchar(32));
insert into t1 values (1, 'data1');
insert into t1 values (2, 'data2');
create table t2 (t2_id int(11) primary key, t1_id int(11), name varchar(32));
insert into t2 values (1, 1, 'xxfoo');
insert into t2 values (2, 1, 'xxbar');
insert into t2 values (3, 1, 'xxbuz');
select * from t1 join t2 using(`t1_id`) where match (t1.name, t2.name) against('xxfoo' in boolean mode);
t1_id name t2_id t1_id name
1 data1 1 1 xxfoo
select * from t2 where match name against ('a* b* c* d* e* f*' in boolean mode);
t2_id t1_id name
drop table t1,t2;
SET NAMES latin1;
CREATE TABLE t1 (t text character set utf8 not null, fulltext(t));
INSERT t1 VALUES ('Mit freundlichem Grüß'), ('aus Osnabrück');
SET NAMES koi8r;
INSERT t1 VALUES ("üÔÏ ÍÙ - ÏÐÉÌËÉ"),("ïÔÌÅÚØ, ÇÎÉÄÁ!"),
("îÅ ×ÌÅÚÁÊ, ÕÂØÅÔ!"),("É ÂÕÄÅÔ ÐÒÁ×!");
SELECT t, charset(t) FROM t1 WHERE MATCH t AGAINST ('ïðéìëé');
t charset(t)
üÔÏ ÍÙ - ÏÐÉÌËÉ utf8
SELECT t, charset(t) FROM t1 WHERE MATCH t AGAINST ('ðÒá*' IN BOOLEAN MODE);
t charset(t)
É ÂÕÄÅÔ ÐÒÁ×! utf8
SELECT * FROM t1 WHERE MATCH t AGAINST ('ÜÔÏ' IN BOOLEAN MODE);
t
SELECT t, charset(t) FROM t1 WHERE MATCH t AGAINST ('Osnabrück');
t charset(t)
SET NAMES latin1;
SELECT t, charset(t) FROM t1 WHERE MATCH t AGAINST ('Osnabrück');
t charset(t)
aus Osnabrück utf8
DROP TABLE t1;
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