-ALTER TABLE `0_chart_class` ADD COLUMN `sign_convert` tinyint(1) NOT NULL default '0';
-UPDATE `0_chart_class` SET `sign_convert`=1 WHERE `cid`=3 OR `cid`=4 OR `cid`=5;
+#ALTER TABLE `0_chart_class` ADD COLUMN `sign_convert` tinyint(1) NOT NULL default '0';
+#UPDATE `0_chart_class` SET `sign_convert`=1 WHERE `cid`=3 OR `cid`=4 OR `cid`=5;