DELETE FROM `qs_Log` WHERE 1;

ALTER TABLE  `qs_Log` CHANGE  `priority`  `errorNumber` INT NULL;

ALTER TABLE `qs_Log`
ADD `exceptionCode` INT              NULL AFTER `errorNumber`,
ADD `file`          VARCHAR(255) NOT NULL AFTER `message`,
ADD `line`          INT          NOT NULL AFTER `file`,
ADD `uid`           VARCHAR(32)  NOT NULL AFTER `line`,
ADD `count`         INT          NOT NULL AFTER `uid`,
ADD INDEX (`uid`) ;