I use an event (in HeidiSQL, right click your eqemu database, select Create New->Event). It runs every 4 hours in MySQL, which appends a value onto a bot name 
if that name exists on the character_data table. This would probably work better as a trigger for the character_data table, but I've got no experience working with those. 
	Code:
	BEGIN
	update bot_data 
		inner join character_data on bot_data.name = character_data.name
		set bot_data.name = CONCAT(bot_data.name, "A");
END
 I also had to enable the global event scheduler in MySQL using root:
	Code:
	SET GLOBAL event_scheduler = ON;
 
Make sure you set a start time and don't have it expire, so it runs each time period you choose. This isn't a perfect fix, but will rename bots in the DB.