CREATE TABLE [!db.pre!]ecms_newstemp AS(SELECT id,classid,newstime,truetime,lastdotime,havehtml FROM [!db.pre!]ecms_news);

ALTER TABLE `[!db.pre!]ecms_newstemp`  ADD COLUMN `checked` tinyint(1) not null  DEFAULT 0 AFTER `classid`;

ALTER TABLE `[!db.pre!]ecms_newstemp`  add primary key (id);

alter table [!db.pre!]ecms_news_index rename to [!db.pre!]ecms_news_indexbak;

alter table [!db.pre!]ecms_newstemp rename to [!db.pre!]ecms_news_index;

ALTER TABLE `[!db.pre!]ecms_news_index` CHANGE `id` `id` INT(10) NOT NULL AUTO_INCREMENT;

alter table [!db.pre!]ecms_news_index add index(classid);

alter table [!db.pre!]ecms_news_index add index(checked);

alter table [!db.pre!]ecms_news_index add index(newstime);

alter table [!db.pre!]ecms_news_index add index(truetime);

update [!db.pre!]ecms_news_index set checked=1;

DROP TABLE `[!db.pre!]ecms_news_indexbak`

====建议分条执行，一是避免超时，二是能发现错误====