oh, really? I thought the mysql command like:
SELECT DISTINCT * FROM wp_posts WHERE 1=1 AND 0=1 AND post_date_gmt <= ‘2006-04-10 02:51:59’ AND (post_status = “publish”) AND post_status != “attachment” GROUP BY wp_posts.ID ORDER BY post_date DESC LIMIT 0, 15
is kinda of mysql injection, for example 1=1 AND 0=1 stuff. but I agree I really knew little about mysql injection.
thanks, I will do the upgrade when the table is fixed.