ALTER TABLE `zt_block` ADD `height` smallint unsigned NOT NULL DEFAULT '0' AFTER `grid`;
ALTER TABLE `zt_product` CHANGE `whitelist` `whitelist` text COLLATE 'utf8_general_ci' NOT NULL AFTER `acl`;
ALTER TABLE `zt_project` CHANGE `whitelist` `whitelist` text COLLATE 'utf8_general_ci' NOT NULL AFTER `acl`;