Hi everybody, I'm trying to use the Full Text index functionality with MySQL 3.23 and I have a problem I can't understand.
I have a table built this way : CREATE TABLE MyTable ( Id bigint unsigned NOT NULL, Num varchar(20) NOT NULL, Title varchar(150) default NULL, Aut1 varchar(100) default NULL, Aut2 varchar(100) default NULL, Aut3 varchar(100) default NULL, Aut4 varchar(100) default NULL, Aut5 varchar(100) default NULL, .... Note text default NULL, Abs text default NULL, Tab text default NULL, PRIMARY KEY (Id), FULLTEXT (Title), FULLTEXT (Aut1,Aut2,Aut3,Aut4,Aut5) ) TYPE=MyISAM; This table contains approximatively 150 000 rows (and in the end, should contain more than 1 000 000 rows). I use queries like this : SELECT count(*) FROM MyTable WHERE (MATCH(Title) AGAINST('a word')); SELECT * FROM MyTable WHERE (MATCH(Title) AGAINST('a word')); And the performance seems very weird to me : 1) If the query returns a few or no results at all, it is very fast 2) If the query returns a lot of results, it is slower... the more results returned the more slower... Sometimes (for > 10 000 results), it takes more than 35 seconds... I have supposed that the problem is due to the fact that MySQL automatically sorts (by relevance ?) the results collected... So, I try to add a "LIMIT 10" to the SELECT... but it does not change anything at all... Any idea ? I really need your help... Thanks Xavier LENOIR --------------------------------------------------------------------- Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail <[EMAIL PROTECTED]> To unsubscribe, e-mail <[EMAIL PROTECTED]> Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php