初始代码

yawei-mes/.sql/2026-02-04_v1.6.035_周启威_领料单库存快照功能.sql

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+-- =============================================
+-- 功能：领料单库存快照功能
+-- 版本：v1.6.037
+-- 日期：2026-02-04
+-- 作者：周启威
+-- 说明：为领料单明细表添加库存快照相关字段，用于记录领料时的库存状态
+-- =============================================
+
+-- 1. 为领料单明细表添加库存快照相关字段
+ALTER TABLE wm_production_pick_entry
+    ADD COLUMN inventory_snapshot DECIMAL(18,6) DEFAULT NULL COMMENT '领料时库存快照',
+    ADD COLUMN snapshot_time DATETIME DEFAULT NULL COMMENT '快照记录时间',
+    ADD COLUMN snapshot_warehouse_id BIGINT DEFAULT NULL COMMENT '快照来源仓库ID',
+    ADD COLUMN snapshot_batch_number VARCHAR(100) DEFAULT NULL COMMENT '快照来源批次号';
+
+-- 2. 添加索引以优化查询性能
+-- 用于快速查询指定物料的最新库存快照
+CREATE INDEX idx_material_snapshot_time
+    ON wm_production_pick_entry(material_id, snapshot_time DESC);
+
+-- 3. 添加字段说明注释
+ALTER TABLE wm_production_pick_entry
+    MODIFY COLUMN inventory_snapshot DECIMAL(18,6) DEFAULT NULL COMMENT '领料时库存快照（记录领料时该物料的实时库存总量）',
+    MODIFY COLUMN snapshot_time DATETIME DEFAULT NULL COMMENT '快照记录时间（领料单创建时间）',
+    MODIFY COLUMN snapshot_warehouse_id BIGINT DEFAULT NULL COMMENT '快照来源仓库ID（领料单关联的仓库）',
+    MODIFY COLUMN snapshot_batch_number VARCHAR(100) DEFAULT NULL COMMENT '快照来源批次号（如有多个批次，记录第一个）';
+
+-- 4. 验证字段是否添加成功
+SELECT
+    COLUMN_NAME AS '字段名',
+    COLUMN_TYPE AS '字段类型',
+    IS_NULLABLE AS '是否可空',
+    COLUMN_DEFAULT AS '默认值',
+    COLUMN_COMMENT AS '字段说明'
+FROM
+    INFORMATION_SCHEMA.COLUMNS
+WHERE
+        TABLE_SCHEMA = DATABASE()
+  AND TABLE_NAME = 'wm_production_pick_entry'
+  AND COLUMN_NAME IN ('inventory_snapshot', 'snapshot_time', 'snapshot_warehouse_id', 'snapshot_batch_number')
+ORDER BY
+    ORDINAL_POSITION;
+
+-- 5. 验证索引是否创建成功
+SHOW INDEX FROM wm_production_pick_entry WHERE Key_name = 'idx_material_snapshot_time';
+
+-- =============================================
+-- 回滚脚本（如需回滚，请执行以下语句）
+-- =============================================
+-- ALTER TABLE wm_production_pick_entry
+-- DROP COLUMN inventory_snapshot,
+-- DROP COLUMN snapshot_time,
+-- DROP COLUMN snapshot_warehouse_id,
+-- DROP COLUMN snapshot_batch_number;
+-- 
+-- DROP INDEX idx_material_snapshot_time ON wms_pro_pick_entry;
+-- =============================================