fulltext_left_join.result

这是linux下运行的mysql软件包,可用于linux 下安装 php + mysql + apach 的网络配置

drop table if exists t1, t2;
CREATE TABLE t1 (
id           VARCHAR(255) NOT NULL PRIMARY KEY,
sujet        VARCHAR(255),
motsclefs    TEXT,
texte        MEDIUMTEXT,
FULLTEXT(sujet, motsclefs, texte)
);
INSERT INTO t1 VALUES('123','toto','essai','test');
INSERT INTO t1 VALUES('456','droit','penal','lawyer');
INSERT INTO t1 VALUES('789','aaaaa','bbbbb','cccccc');
CREATE TABLE t2 (
id         VARCHAR(255) NOT NULL,
author     VARCHAR(255) NOT NULL
);
INSERT INTO t2 VALUES('123', 'moi');
INSERT INTO t2 VALUES('123', 'lui');
INSERT INTO t2 VALUES('456', 'lui');
select round(match(t1.texte,t1.sujet,t1.motsclefs) against('droit'),5)
from t1 left join t2 on t2.id=t1.id;
round(match(t1.texte,t1.sujet,t1.motsclefs) against('droit'),5)
0.00000
0.00000
0.67003
0.00000
select match(t1.texte,t1.sujet,t1.motsclefs) against('droit' IN BOOLEAN MODE)
from t1 left join t2 on t2.id=t1.id;
match(t1.texte,t1.sujet,t1.motsclefs) against('droit' IN BOOLEAN MODE)
0
0
1
0
drop table t1, t2;
create table t1 (venue_id int(11) default null, venue_text varchar(255) default null, dt datetime default null) engine=myisam;
insert into t1 (venue_id, venue_text, dt) values (1, 'a1', '2003-05-23 19:30:00'),(null, 'a2', '2003-05-23 19:30:00');
create table t2 (name varchar(255) not null default '', entity_id int(11) not null auto_increment, primary key  (entity_id), fulltext key name (name)) engine=myisam;
insert into t2 (name, entity_id) values ('aberdeen town hall', 1), ('glasgow royal concert hall', 2), ('queen\'s hall, edinburgh', 3);
select * from t1 left join t2 on venue_id = entity_id where match(name) against('aberdeen' in boolean mode) and dt = '2003-05-23 19:30:00';
venue_id	venue_text	dt	name	entity_id
1	a1	2003-05-23 19:30:00	aberdeen town hall	1
select * from t1 left join t2 on venue_id = entity_id where match(name) against('aberdeen') and dt = '2003-05-23 19:30:00';
venue_id	venue_text	dt	name	entity_id
1	a1	2003-05-23 19:30:00	aberdeen town hall	1
select * from t1 left join t2 on (venue_id = entity_id and match(name) against('aberdeen' in boolean mode)) where dt = '2003-05-23 19:30:00';
venue_id	venue_text	dt	name	entity_id
1	a1	2003-05-23 19:30:00	aberdeen town hall	1
NULL	a2	2003-05-23 19:30:00	NULL	NULL
select * from t1 left join t2 on (venue_id = entity_id and match(name) against('aberdeen')) where dt = '2003-05-23 19:30:00';
venue_id	venue_text	dt	name	entity_id
1	a1	2003-05-23 19:30:00	aberdeen town hall	1
NULL	a2	2003-05-23 19:30:00	NULL	NULL
drop table t1,t2;