Debug splitting normal and metrics tables

inventory-server/db/metrics-schema.sql

@@ -0,0 +1,91 @@
+-- Disable foreign key checks
+SET FOREIGN_KEY_CHECKS = 0;
+
+-- Temporary tables for batch metrics processing
+CREATE TABLE IF NOT EXISTS temp_sales_metrics (
+    product_id BIGINT NOT NULL,
+    daily_sales_avg DECIMAL(10,3),
+    weekly_sales_avg DECIMAL(10,3),
+    monthly_sales_avg DECIMAL(10,3),
+    total_revenue DECIMAL(10,3),
+    avg_margin_percent DECIMAL(10,3),
+    first_sale_date DATE,
+    last_sale_date DATE,
+    PRIMARY KEY (product_id)
+);
+
+CREATE TABLE IF NOT EXISTS temp_purchase_metrics (
+    product_id BIGINT NOT NULL,
+    avg_lead_time_days INT,
+    last_purchase_date DATE,
+    last_received_date DATE,
+    PRIMARY KEY (product_id)
+);
+
+-- New table for product metrics
+CREATE TABLE IF NOT EXISTS product_metrics (
+    product_id BIGINT NOT NULL,
+    last_calculated_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
+    -- Sales velocity metrics
+    daily_sales_avg DECIMAL(10,3),
+    weekly_sales_avg DECIMAL(10,3),
+    monthly_sales_avg DECIMAL(10,3),
+    -- Stock metrics
+    days_of_inventory INT,
+    weeks_of_inventory INT,
+    reorder_point INT,
+    safety_stock INT,
+    -- Financial metrics
+    avg_margin_percent DECIMAL(10,3),
+    total_revenue DECIMAL(10,3),
+    -- Purchase metrics
+    avg_lead_time_days INT,
+    last_purchase_date DATE,
+    last_received_date DATE,
+    -- Classification
+    abc_class CHAR(1),
+    stock_status VARCHAR(20),
+    PRIMARY KEY (product_id),
+    FOREIGN KEY (product_id) REFERENCES products(product_id) ON DELETE CASCADE
+);
+
+-- New table for time-based aggregates
+CREATE TABLE IF NOT EXISTS product_time_aggregates (
+    product_id BIGINT NOT NULL,
+    year INT NOT NULL,
+    month INT NOT NULL,
+    -- Sales metrics
+    total_quantity_sold INT DEFAULT 0,
+    total_revenue DECIMAL(10,3) DEFAULT 0,
+    total_cost DECIMAL(10,3) DEFAULT 0,
+    order_count INT DEFAULT 0,
+    -- Stock changes
+    stock_received INT DEFAULT 0,
+    stock_ordered INT DEFAULT 0,
+    -- Calculated fields
+    avg_price DECIMAL(10,3),
+    profit_margin DECIMAL(10,3),
+    PRIMARY KEY (product_id, year, month),
+    FOREIGN KEY (product_id) REFERENCES products(product_id) ON DELETE CASCADE,
+    INDEX idx_date (year, month)
+);
+
+-- New table for vendor performance
+CREATE TABLE IF NOT EXISTS vendor_metrics (
+    vendor VARCHAR(100) NOT NULL,
+    last_calculated_at TIMESTAMP NOT NULL,
+    avg_lead_time_days DECIMAL(10,3),
+    on_time_delivery_rate DECIMAL(5,2),
+    order_fill_rate DECIMAL(5,2),
+    total_orders INT,
+    total_late_orders INT,
+    PRIMARY KEY (vendor),
+    FOREIGN KEY (vendor) REFERENCES products(vendor) ON DELETE CASCADE
+);
+
+-- Re-enable foreign key checks
+SET FOREIGN_KEY_CHECKS = 1;
+
+-- Create optimized indexes for metrics calculations
+CREATE INDEX idx_orders_metrics ON orders (product_id, date, canceled, quantity, price);
+CREATE INDEX idx_purchase_orders_metrics ON purchase_orders (product_id, date, status, ordered, received);