Ah, I can verify this as well. I thought it was something to do with tags and multiple items (
http://www.pligg.com/forum/showthread.php?t=602 )
In looking at the SQL docs this looks to be an issue that requires too much for an admin to change.
Quote:
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The minimum and maximum lengths of words to be indexed are defined by the ft_min_word_len and ft_max_word_len system variables. (See Section 5.2.2, “Server System Variables”.) The default minimum value is four characters; the default maximum is version dependent. If you change either value, you must rebuild your FULLTEXT indexes. For example, if you want three-character words to be searchable, you can set the ft_min_word_len variable by putting the following lines in an option file:
[mysqld]
ft_min_word_len=3
Then you must restart the server and rebuild your FULLTEXT indexes. Note particularly the remarks regarding myisamchk in the instructions following this list.
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http://dev.mysql.com/doc/refman/5.0/...ne-tuning.html
The restarting the server deal is too much to ask and changing this would change it for an entire site. That's not going to work for people with other databases like forums and such.
So, a solution needs to come from the pligg developers in my opinion. This is a deal-breaker for me and I can't deploy a site with this bug. Three character tags are a must.