ALTER TABLE `sb_investor`
ADD COLUMN `province`  varchar(255) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL COMMENT '省份' AFTER `change_record`,
ADD COLUMN `city`  varchar(255) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL COMMENT '市' AFTER `province`,
ADD COLUMN `district`  varchar(255) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL COMMENT '区县' AFTER `city`,
ADD COLUMN `detail_address`  varchar(255) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL COMMENT '详细地址' AFTER `district`;