Hi! On Jan 06, Erlend Hopsø Strømsvik wrote: > > Hi > > I'm currently using MySQL (4.0.4 recompiled) as our database for storing > information about books. > There are about 1.5mill book titles + other information in the database now. > > The fulltext search capabilities of MySQL have turned out to become very > good with the 4+ version and with a little tweaking of the ft_min_word_len > and myisam/ft_static.c we have gotten all we wished for feature wise :) > ft_min_word_len is 2 and I've completely removed the stopword list. > A fulltext search with 1.5mill book titles and sub titles takes about 0.17 > sec so there is no speed issues here. (hands down for MySQL) :)
Thanks :) > But... > Does the stopword list have to be 'hardcoded' in myisam/ft_static.c? No, of course, it has not. The problem is, that I cannot implement something like CREATE TABLE ... ( ... FULLTEXT (...) WITHOUT STOPWORD LIST ) or CREATE TABLE ... ( ... FULLTEXT (...) WITH STOPWORD LIST="filename" ) or whatever, as there is simply no room in .frm file to store extra table/column/index attributes :( Changing .frm format is in our todo for a long time already, but it includes few subtasks that makes it very non-trivial. :( It's something that Monty is going to do himself. What I can easily do without breaking 4.0.x "gamma" status, is to add command line switch --disable-fulltext-stopwords. It can help as a temporary solution, untill a proper fix - per-index options, that is - will be implemented. > I remember working on a project when I was school where we wrote this > program using autogenerated stopword lists and N-gram matching for the text > and search string. By this the stopword list was not hard coded.. What is "N-gram matching" ? Regards, Sergei -- MySQL Development Team __ ___ ___ ____ __ / |/ /_ __/ __/ __ \/ / Sergei Golubchik <[EMAIL PROTECTED]> / /|_/ / // /\ \/ /_/ / /__ MySQL AB, http://www.mysql.com/ /_/ /_/\_, /___/\___\_\___/ Osnabrueck, Germany <___/ --------------------------------------------------------------------- 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
