Voordat MySQL 5.6 Zoeken in volledige tekst wordt ondersteund alleen met MyISAM Engine.
Verander daarom ofwel de engine voor uw tabel in MyISAM
CREATE TABLE gamemech_chat (
id bigint(20) unsigned NOT NULL auto_increment,
from_userid varchar(50) NOT NULL default '0',
to_userid varchar(50) NOT NULL default '0',
text text NOT NULL,
systemtext text NOT NULL,
timestamp datetime NOT NULL default '0000-00-00 00:00:00',
chatroom bigint(20) NOT NULL default '0',
PRIMARY KEY (id),
KEY from_userid (from_userid),
FULLTEXT KEY from_userid_2 (from_userid),
KEY chatroom (chatroom),
KEY timestamp (timestamp)
) ENGINE=MyISAM;
Hier is SQLFiddle demo
of upgrade naar 5.6 en gebruik InnoDB Full-Text Search.