31 lines
1.8 KiB
MySQL
31 lines
1.8 KiB
MySQL
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-- Phase 3 DDL Migration Script
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-- 在已有数据库上执行，补充 Phase 3 新增的字段和表
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-- dim_inventory_snapshot 如果已在之前执行中创建，则此脚本中的 CREATE TABLE 会报 "already exists"，可忽略
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USE youzandatahub;
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-- 1. dim_offline_store: 新增仓库编码和库存模式字段
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ALTER TABLE dim_offline_store
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ADD COLUMN warehouse_code VARCHAR(64) DEFAULT NULL COMMENT '仓库编码(库存API必需)',
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ADD COLUMN stock_mode INT DEFAULT NULL COMMENT '库存模式:1独立,2共享总部,3共享门店仓,4进出存';
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-- 2. dwd_trade_refund_detail: 新增退款诉求、阶段、买家ID、修改时间
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ALTER TABLE dwd_trade_refund_detail
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ADD COLUMN refund_demand INT DEFAULT NULL COMMENT '退款诉求:1仅退款,2退货退款,3换货',
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ADD COLUMN refund_phase INT DEFAULT NULL COMMENT '退款阶段:1售中,2售后',
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ADD COLUMN yz_open_id VARCHAR(64) DEFAULT NULL COMMENT '买家yz_open_id',
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ADD COLUMN modified_time DATETIME DEFAULT NULL COMMENT '最后修改时间';
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-- 3. 新建库存快照表 (如已存在则跳过)
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CREATE TABLE IF NOT EXISTS `dim_inventory_snapshot` (
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`id` BIGINT NOT NULL AUTO_INCREMENT PRIMARY KEY,
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`warehouse_code` VARCHAR(64) NOT NULL COMMENT '仓库编码',
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`sku_code` VARCHAR(128) NOT NULL COMMENT 'SKU编码',
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`stock_num` DECIMAL(12,2) DEFAULT 0 COMMENT '实物库存',
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`freeze_num` DECIMAL(12,2) DEFAULT 0 COMMENT '实物占用',
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`available_num` DECIMAL(12,2) DEFAULT 0 COMMENT '可用库存(stock_num-freeze_num)',
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`snapshot_date` DATE NOT NULL COMMENT '快照日期',
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`etl_update_time` DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP COMMENT '中台同步时间',
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UNIQUE KEY `uk_snapshot` (`warehouse_code`, `sku_code`, `snapshot_date`)
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) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='每日库存快照表';
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