ALTER TABLE `vn`.`clientLog` 
CHANGE COLUMN `newInstance` `newInstance` TEXT NULL DEFAULT NULL ;



ALTER TABLE `vn`.`clientLog` 
CHANGE COLUMN `model` `changedModel` TEXT CHARACTER SET 'utf8' COLLATE 'utf8_unicode_ci' NULL DEFAULT NULL ,
ADD COLUMN `changedModelId` INT(11) NULL DEFAULT NULL AFTER `newInstance`,
ADD COLUMN `changedModelValue` INT(11) NULL DEFAULT NULL AFTER `changedModelId`;