Configuring MediaWiki to Search for Three Letter Words

By default MediaWiki uses MySQL and the default FULLTEXT indexing uses built-in stop words and a minimum word length of four. A list of the stop words is available but are the usual thing ( the , and , one_, etc.). You can set your own stop words by setting the ft_stopword_file system variable but the default stop words may be sufficient to your purposes. However, there are many three letter words which you may like to index (_SVN , RSS , FAQ , etc.). In order to do this you need to change the FULLTEXT indexing to a minimum word length of three. To do this edit the my.ini and add to the end of the [mysqld] section: 
 ft_min_word_len=3[myisamchk]ft_min_word_len=3 
 Restart MySQL, and then reindex the relevant tables. The tables are ${mw_}searchindex where ${mw_} is the table prefix for the MediaWiki instance (there will be one searchindex table for each instance). To reindex the table, log into the server and start up MySQL Administrator . Log in as root and click Catalogs , then wikidb . Select the table and click the Maintenance button. Select Repair Tables and press Next . Check the Quick option under Repair Method and click Repair Tables . Repeat for each MediaWiki instance.