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'); SHOW INDEX FROM t1; Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment t1 1 a 1 a NULL NULL NULL NULL YES FULLTEXT t1 1 a 2 b NULL NULL NULL NULL YES FULLTEXT 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 filtered Extra 1 SIMPLE t1 fulltext a a 0 1 100.00 Using where Warnings: Note 1003 select `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 select * from t1 where MATCH(a,b) AGAINST ("indexes" IN NATURAL LANGUAGE MODE); a b Full-text indexes are called collections select * from t1 where MATCH(a,b) AGAINST ("indexes" IN NATURAL LANGUAGE MODE 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" IN BOOLEAN MODE WITH QUERY EXPANSION); ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'WITH QUERY EXPANSION)' at line 1 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 00 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 filtered Extra 1 SIMPLE t1 fulltext a a 0 1 100.00 Using where Warnings: Note 1003 select `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 ('"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,b AGAINST ('+(support collections) +foobar*' IN BOOLEAN MODE); a b select * from t1 where MATCH a,b AGAINST ('+(+(support collections)) +foobar*' IN BOOLEAN MODE); a b select * from t1 where MATCH a,b AGAINST ('+collections -supp* -foobar*' IN BOOLEAN MODE); a b Full-text indexes are called collections select * from t1 where MATCH a,b AGAINST('"space model' IN BOOLEAN MODE); a b Full-text search in MySQL implements vector space model 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 (a varchar(200) not null, fulltext (a)); insert t1 values ("aaa10 bbb20"), ("aaa20 bbb15"), ("aaa30 bbb10"); select * from t1 where match a against ("+aaa* +bbb*" in boolean mode); a aaa30 bbb10 aaa20 bbb15 aaa10 bbb20 select * from t1 where match a against ("+aaa* +bbb1*" in boolean mode); a aaa30 bbb10 aaa20 bbb15 select * from t1 where match a against ("+aaa* +ccc*" in boolean mode); a select * from t1 where match a against ("+aaa10 +(bbb*)" in boolean mode); a aaa10 bbb20 select * from t1 where match a against ("+(+aaa* +bbb1*)" in boolean mode); a aaa30 bbb10 aaa20 bbb15 select * from t1 where match a against ("(+aaa* +bbb1*)" in boolean mode); a aaa30 bbb10 aaa20 bbb15 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 ticket2.id FROM t2 as ttxt,t2 INNER JOIN t1 as ticket2 ON ticket2.id = t2.ticket WHERE ticket2.id = ticket2.ticket and match(ttxt.inhalt) against ('foobar'); id INSERT INTO t1 VALUES (3,3); select ticket2.id FROM t2 as ttxt,t2 INNER JOIN t1 as ticket2 ON ticket2.id = t2.ticket WHERE ticket2.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 NULL NULL NULL 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`) ) ENGINE=MyISAM DEFAULT 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: Incorrect 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: Incorrect 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) ) ENGINE=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)) ENGINE=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)) ENGINE=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 name 1 data1 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; create table t1 (a text, fulltext key (a)); insert into t1 select "xxxx yyyy zzzz"; drop table t1; 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, collation(t) FROM t1 WHERE MATCH t AGAINST ('ïðéìëé'); t collation(t) üÔÏ ÍÙ - ÏÐÉÌËÉ utf8_general_ci SELECT t, collation(t) FROM t1 WHERE MATCH t AGAINST ('ðÒá*' IN BOOLEAN MODE); t collation(t) É ÂÕÄÅÔ ÐÒÁ×! utf8_general_ci SELECT * FROM t1 WHERE MATCH t AGAINST ('ÜÔÏ' IN BOOLEAN MODE); t SELECT t, collation(t) FROM t1 WHERE MATCH t AGAINST ('Osnabrück'); t collation(t) SET NAMES latin1; SELECT t, collation(t) FROM t1 WHERE MATCH t AGAINST ('Osnabrück'); t collation(t) aus Osnabrück utf8_general_ci SELECT t, collation(t) FROM t1 WHERE MATCH t AGAINST ('Osnabrueck'); t collation(t) SELECT t, collation(t),FORMAT(MATCH t AGAINST ('Osnabruck'),6) FROM t1 WHERE MATCH t AGAINST ('Osnabruck'); t collation(t) FORMAT(MATCH t AGAINST ('Osnabruck'),6) aus Osnabrück utf8_general_ci 1.591140 alter table t1 modify t varchar(200) collate latin1_german2_ci not null; Warnings: Warning 1366 Incorrect string value: '\xD0\xAD\xD1\x82\xD0\xBE...' for column 't' at row 3 Warning 1366 Incorrect string value: '\xD0\x9E\xD1\x82\xD0\xBB...' for column 't' at row 4 Warning 1366 Incorrect string value: '\xD0\x9D\xD0\xB5 \xD0...' for column 't' at row 5 Warning 1366 Incorrect string value: '\xD0\xB8 \xD0\xB1\xD1...' for column 't' at row 6 SELECT t, collation(t) FROM t1 WHERE MATCH t AGAINST ('Osnabrück'); t collation(t) aus Osnabrück latin1_german2_ci SELECT t, collation(t) FROM t1 WHERE MATCH t AGAINST ('Osnabrueck'); t collation(t) aus Osnabrück latin1_german2_ci DROP TABLE t1; CREATE TABLE t1 (s varchar(255), FULLTEXT (s)) DEFAULT CHARSET=utf8; insert into t1 (s) values ('pära para para'),('para para para'); select * from t1 where match(s) against('para' in boolean mode); s pära para para para para para select * from t1 where match(s) against('par*' in boolean mode); s pära para para para para para DROP TABLE t1; CREATE TABLE t1 (h text, FULLTEXT (h)); INSERT INTO t1 VALUES ('Jesses Hasse Ling and his syncopators of Swing'); REPAIR TABLE t1; Table Op Msg_type Msg_text test.t1 repair status OK select count(*) from t1; count(*) 1 drop table t1; CREATE TABLE t1 ( a TEXT, FULLTEXT (a) ); INSERT INTO t1 VALUES ('testing ft_nlq_find_relevance'); SELECT MATCH(a) AGAINST ('nosuchword') FROM t1; MATCH(a) AGAINST ('nosuchword') 0 DROP TABLE t1; create table t1 (a int primary key, b text, fulltext(b)); create table t2 (a int, b text); insert t1 values (1, "aaaa"), (2, "bbbb"); insert t2 values (10, "aaaa"), (2, "cccc"); replace t1 select * from t2; drop table t1, t2; CREATE TABLE t1 (t VARCHAR(200) CHARACTER SET utf8 COLLATE utf8_unicode_ci, FULLTEXT (t)); SET NAMES latin1; INSERT INTO t1 VALUES('Mit freundlichem Grüß aus Osnabrück'); SELECT COUNT(*) FROM t1 WHERE MATCH(t) AGAINST ('"osnabrück"' IN BOOLEAN MODE); COUNT(*) 1 DROP TABLE t1; CREATE TABLE t1 (a VARCHAR(30), FULLTEXT(a)); INSERT INTO t1 VALUES('bbbbbbbbbbbbbbbbbbbbbbbbbbbbbb'); SET myisam_repair_threads=2; REPAIR TABLE t1; Table Op Msg_type Msg_text test.t1 repair status OK SET myisam_repair_threads=@@global.myisam_repair_threads; INSERT INTO t1 VALUES('testword\'\''); SELECT a FROM t1 WHERE MATCH a AGAINST('testword' IN BOOLEAN MODE); a testword'' SELECT a FROM t1 WHERE MATCH a AGAINST('testword\'\'' IN BOOLEAN MODE); a testword'' INSERT INTO t1 VALUES('test\'s'); SELECT a FROM t1 WHERE MATCH a AGAINST('test' IN BOOLEAN MODE); a test's DROP TABLE t1; CREATE TABLE t1 (a VARCHAR(10000), FULLTEXT(a)); SHOW CREATE TABLE t1; Table Create Table t1 CREATE TABLE `t1` ( `a` varchar(10000) DEFAULT NULL, FULLTEXT KEY `a` (`a`) ) ENGINE=MyISAM DEFAULT CHARSET=latin1 DROP TABLE t1; CREATE TABLE t1 (a TEXT, FULLTEXT KEY(a)); INSERT INTO t1 VALUES('test'),('test1'),('test'); PREPARE stmt from "SELECT a, FORMAT(MATCH(a) AGAINST('test1 test'),6) FROM t1 WHERE MATCH(a) AGAINST('test1 test')"; EXECUTE stmt; a FORMAT(MATCH(a) AGAINST('test1 test'),6) test1 0.685267 EXECUTE stmt; a FORMAT(MATCH(a) AGAINST('test1 test'),6) test1 0.685267 DEALLOCATE PREPARE stmt; DROP TABLE t1;