ALTER TABLE `vn`.`entryLog` 
ADD COLUMN `changedModel` varchar(45) CHARACTER SET utf8 COLLATE utf8_unicode_ci DEFAULT NULL,
ADD COLUMN `oldInstance` text CHARACTER SET utf8 COLLATE utf8_unicode_ci,
ADD COLUMN `newInstance` text CHARACTER SET utf8 COLLATE utf8_unicode_ci,
ADD COLUMN `changedModelId` int(11) DEFAULT NULL,
ADD COLUMN `changedModelValue` varchar(45) CHARACTER SET utf8 COLLATE utf8_unicode_ci DEFAULT NULL;