dx1升级dx2.5出现这个错误

[时长]:20秒 [状态]:copy to tmp table[信息]:ALTER TABLE pre_forum_post ORDER BY tid ASC, first DESC, pid ASC

[时长]:20秒 [状态]:Locked[信息]:ALTER TABLE pre_forum_post CHANGE `pid` `pid` INT(10) UNSIGNED NOT NULL, CHANGE `status` `status` int(10) NOT NULL default '0', ADD UNIQUE KEY pid (pid), DROP PRIMARY KEY, ADD `position` INT(8) UNSIGNED NOT NULL AUTO_INCREMENT, ADD PRIMARY KEY(`tid`, `position`), DROP INDEX authorid, ADD INDEX authorid (authorid,invisible)






dx1升级dx2.5出现这个错误

慢慢等待升级完成