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+ALTER TABLE `payment_management`
+ADD COLUMN `amount_not_payable` float(11, 4) NULL COMMENT '未付金额(元/吨)' AFTER `amount_ed_payable`,
+ADD COLUMN `payment_screenshot` varchar(500) NULL COMMENT '付款截图' AFTER `amount_not_payable`,
+ADD COLUMN `payment_date` datetime NULL COMMENT '付款日期' AFTER `payment_screenshot`;