Reapply "1123"

This reverts commit d0684dcaa5.

doc/v2.0/v2.0.sql

@@ -0,0 +1,9 @@
+ALTER TABLE `dk_borrow`
+ADD COLUMN `borrow_status_id` bigint(20) NULL COMMENT '借款编码' AFTER `borrow_name`;
+
+ALTER TABLE `dk_borrow_status`
+ADD COLUMN `borrow_code` varchar(60) NULL COMMENT '借款编码' AFTER `used_remit`,
+ADD COLUMN `withdraw_flag` tinyint(1) NOT NULL DEFAULT 1 COMMENT '是否允许提现' AFTER `borrow_code`;
+
+ALTER TABLE `dk_customer`
+ADD COLUMN `create_time` datetime NOT NULL DEFAULT now() COMMENT '新增时间' AFTER `update_time`;