307 lines
12 KiB
PL/PgSQL
307 lines
12 KiB
PL/PgSQL
-- Configuration tables schema
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-- Create function for updating timestamps if it doesn't exist
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CREATE OR REPLACE FUNCTION update_updated_column()
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RETURNS TRIGGER AS $$
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BEGIN
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NEW.updated = CURRENT_TIMESTAMP;
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RETURN NEW;
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END;
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$$ language 'plpgsql';
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-- Create function for updating updated_at timestamps
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CREATE OR REPLACE FUNCTION update_updated_at_column()
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RETURNS TRIGGER AS $$
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BEGIN
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NEW.updated_at = CURRENT_TIMESTAMP;
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RETURN NEW;
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END;
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$$ language 'plpgsql';
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-- Stock threshold configurations
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CREATE TABLE stock_thresholds (
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id INTEGER NOT NULL,
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category_id BIGINT, -- NULL means default/global threshold
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vendor VARCHAR(100), -- NULL means applies to all vendors
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critical_days INTEGER NOT NULL DEFAULT 7,
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reorder_days INTEGER NOT NULL DEFAULT 14,
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overstock_days INTEGER NOT NULL DEFAULT 90,
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low_stock_threshold INTEGER NOT NULL DEFAULT 5,
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min_reorder_quantity INTEGER NOT NULL DEFAULT 1,
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created_at TIMESTAMP WITH TIME ZONE DEFAULT CURRENT_TIMESTAMP,
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updated_at TIMESTAMP WITH TIME ZONE DEFAULT CURRENT_TIMESTAMP,
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PRIMARY KEY (id),
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FOREIGN KEY (category_id) REFERENCES categories(cat_id) ON DELETE CASCADE,
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UNIQUE (category_id, vendor)
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);
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CREATE TRIGGER update_stock_thresholds_updated
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BEFORE UPDATE ON stock_thresholds
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FOR EACH ROW
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EXECUTE FUNCTION update_updated_at_column();
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CREATE INDEX idx_st_metrics ON stock_thresholds(category_id, vendor);
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-- Lead time threshold configurations
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CREATE TABLE lead_time_thresholds (
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id INTEGER NOT NULL,
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category_id BIGINT, -- NULL means default/global threshold
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vendor VARCHAR(100), -- NULL means applies to all vendors
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target_days INTEGER NOT NULL DEFAULT 14,
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warning_days INTEGER NOT NULL DEFAULT 21,
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critical_days INTEGER NOT NULL DEFAULT 30,
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created_at TIMESTAMP WITH TIME ZONE DEFAULT CURRENT_TIMESTAMP,
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updated_at TIMESTAMP WITH TIME ZONE DEFAULT CURRENT_TIMESTAMP,
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PRIMARY KEY (id),
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FOREIGN KEY (category_id) REFERENCES categories(cat_id) ON DELETE CASCADE,
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UNIQUE (category_id, vendor)
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);
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CREATE TRIGGER update_lead_time_thresholds_updated
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BEFORE UPDATE ON lead_time_thresholds
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FOR EACH ROW
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EXECUTE FUNCTION update_updated_at_column();
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-- Sales velocity window configurations
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CREATE TABLE sales_velocity_config (
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id INTEGER NOT NULL,
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category_id BIGINT, -- NULL means default/global threshold
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vendor VARCHAR(100), -- NULL means applies to all vendors
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daily_window_days INTEGER NOT NULL DEFAULT 30,
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weekly_window_days INTEGER NOT NULL DEFAULT 7,
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monthly_window_days INTEGER NOT NULL DEFAULT 90,
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created_at TIMESTAMP WITH TIME ZONE DEFAULT CURRENT_TIMESTAMP,
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updated_at TIMESTAMP WITH TIME ZONE DEFAULT CURRENT_TIMESTAMP,
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PRIMARY KEY (id),
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FOREIGN KEY (category_id) REFERENCES categories(cat_id) ON DELETE CASCADE,
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UNIQUE (category_id, vendor)
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);
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CREATE TRIGGER update_sales_velocity_config_updated
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BEFORE UPDATE ON sales_velocity_config
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FOR EACH ROW
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EXECUTE FUNCTION update_updated_at_column();
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CREATE INDEX idx_sv_metrics ON sales_velocity_config(category_id, vendor);
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-- ABC Classification configurations
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CREATE TABLE abc_classification_config (
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id INTEGER NOT NULL PRIMARY KEY,
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a_threshold DECIMAL(5,2) NOT NULL DEFAULT 20.0,
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b_threshold DECIMAL(5,2) NOT NULL DEFAULT 50.0,
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classification_period_days INTEGER NOT NULL DEFAULT 90,
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created_at TIMESTAMP WITH TIME ZONE DEFAULT CURRENT_TIMESTAMP,
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updated_at TIMESTAMP WITH TIME ZONE DEFAULT CURRENT_TIMESTAMP
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);
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CREATE TRIGGER update_abc_classification_config_updated
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BEFORE UPDATE ON abc_classification_config
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FOR EACH ROW
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EXECUTE FUNCTION update_updated_at_column();
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-- Safety stock configurations
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CREATE TABLE safety_stock_config (
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id INTEGER NOT NULL,
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category_id BIGINT, -- NULL means default/global threshold
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vendor VARCHAR(100), -- NULL means applies to all vendors
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coverage_days INTEGER NOT NULL DEFAULT 14,
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service_level DECIMAL(5,2) NOT NULL DEFAULT 95.0,
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created_at TIMESTAMP WITH TIME ZONE DEFAULT CURRENT_TIMESTAMP,
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updated_at TIMESTAMP WITH TIME ZONE DEFAULT CURRENT_TIMESTAMP,
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PRIMARY KEY (id),
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FOREIGN KEY (category_id) REFERENCES categories(cat_id) ON DELETE CASCADE,
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UNIQUE (category_id, vendor)
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);
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CREATE TRIGGER update_safety_stock_config_updated
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BEFORE UPDATE ON safety_stock_config
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FOR EACH ROW
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EXECUTE FUNCTION update_updated_at_column();
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CREATE INDEX idx_ss_metrics ON safety_stock_config(category_id, vendor);
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-- Turnover rate configurations
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CREATE TABLE turnover_config (
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id INTEGER NOT NULL,
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category_id BIGINT, -- NULL means default/global threshold
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vendor VARCHAR(100), -- NULL means applies to all vendors
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calculation_period_days INTEGER NOT NULL DEFAULT 30,
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target_rate DECIMAL(10,2) NOT NULL DEFAULT 1.0,
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created_at TIMESTAMP WITH TIME ZONE DEFAULT CURRENT_TIMESTAMP,
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updated_at TIMESTAMP WITH TIME ZONE DEFAULT CURRENT_TIMESTAMP,
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PRIMARY KEY (id),
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FOREIGN KEY (category_id) REFERENCES categories(cat_id) ON DELETE CASCADE,
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UNIQUE (category_id, vendor)
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);
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CREATE TRIGGER update_turnover_config_updated
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BEFORE UPDATE ON turnover_config
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FOR EACH ROW
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EXECUTE FUNCTION update_updated_at_column();
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-- Create table for sales seasonality factors
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CREATE TABLE sales_seasonality (
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month INTEGER NOT NULL,
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seasonality_factor DECIMAL(5,3) DEFAULT 0,
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last_updated TIMESTAMP WITH TIME ZONE NOT NULL DEFAULT CURRENT_TIMESTAMP,
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PRIMARY KEY (month),
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CONSTRAINT month_range CHECK (month BETWEEN 1 AND 12),
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CONSTRAINT seasonality_range CHECK (seasonality_factor BETWEEN -1.0 AND 1.0)
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);
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CREATE TRIGGER update_sales_seasonality_updated
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BEFORE UPDATE ON sales_seasonality
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FOR EACH ROW
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EXECUTE FUNCTION update_updated_at_column();
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-- Create table for financial calculation parameters
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CREATE TABLE financial_calc_config (
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id INTEGER NOT NULL PRIMARY KEY,
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order_cost DECIMAL(10,2) NOT NULL DEFAULT 25.00, -- The fixed cost per purchase order (used in EOQ)
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holding_rate DECIMAL(10,4) NOT NULL DEFAULT 0.25, -- The annual inventory holding cost as a percentage of unit cost (used in EOQ)
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service_level_z_score DECIMAL(10,4) NOT NULL DEFAULT 1.96, -- Z-score for ~95% service level (used in Safety Stock)
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min_reorder_qty INTEGER NOT NULL DEFAULT 1, -- Minimum reorder quantity
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default_reorder_qty INTEGER NOT NULL DEFAULT 5, -- Default reorder quantity when sales data is insufficient
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default_safety_stock INTEGER NOT NULL DEFAULT 5, -- Default safety stock when sales data is insufficient
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created_at TIMESTAMP WITH TIME ZONE DEFAULT CURRENT_TIMESTAMP,
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updated_at TIMESTAMP WITH TIME ZONE DEFAULT CURRENT_TIMESTAMP
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);
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CREATE TRIGGER update_financial_calc_config_updated
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BEFORE UPDATE ON financial_calc_config
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FOR EACH ROW
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EXECUTE FUNCTION update_updated_at_column();
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-- Insert default global thresholds
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INSERT INTO stock_thresholds (id, category_id, vendor, critical_days, reorder_days, overstock_days)
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VALUES (1, NULL, NULL, 7, 14, 90)
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ON CONFLICT (id) DO UPDATE SET
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critical_days = EXCLUDED.critical_days,
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reorder_days = EXCLUDED.reorder_days,
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overstock_days = EXCLUDED.overstock_days;
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INSERT INTO lead_time_thresholds (id, category_id, vendor, target_days, warning_days, critical_days)
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VALUES (1, NULL, NULL, 14, 21, 30)
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ON CONFLICT (id) DO UPDATE SET
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target_days = EXCLUDED.target_days,
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warning_days = EXCLUDED.warning_days,
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critical_days = EXCLUDED.critical_days;
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INSERT INTO sales_velocity_config (id, category_id, vendor, daily_window_days, weekly_window_days, monthly_window_days)
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VALUES (1, NULL, NULL, 30, 7, 90)
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ON CONFLICT (id) DO UPDATE SET
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daily_window_days = EXCLUDED.daily_window_days,
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weekly_window_days = EXCLUDED.weekly_window_days,
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monthly_window_days = EXCLUDED.monthly_window_days;
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INSERT INTO abc_classification_config (id, a_threshold, b_threshold, classification_period_days)
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VALUES (1, 20.0, 50.0, 90)
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ON CONFLICT (id) DO UPDATE SET
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a_threshold = EXCLUDED.a_threshold,
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b_threshold = EXCLUDED.b_threshold,
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classification_period_days = EXCLUDED.classification_period_days;
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INSERT INTO safety_stock_config (id, category_id, vendor, coverage_days, service_level)
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VALUES (1, NULL, NULL, 14, 95.0)
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ON CONFLICT (id) DO UPDATE SET
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coverage_days = EXCLUDED.coverage_days,
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service_level = EXCLUDED.service_level;
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INSERT INTO turnover_config (id, category_id, vendor, calculation_period_days, target_rate)
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VALUES (1, NULL, NULL, 30, 1.0)
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ON CONFLICT (id) DO UPDATE SET
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calculation_period_days = EXCLUDED.calculation_period_days,
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target_rate = EXCLUDED.target_rate;
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-- Insert default seasonality factors (neutral)
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INSERT INTO sales_seasonality (month, seasonality_factor)
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VALUES
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(1, 0), (2, 0), (3, 0), (4, 0), (5, 0), (6, 0),
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(7, 0), (8, 0), (9, 0), (10, 0), (11, 0), (12, 0)
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ON CONFLICT (month) DO UPDATE SET
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last_updated = CURRENT_TIMESTAMP;
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-- Insert default values
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INSERT INTO financial_calc_config (id, order_cost, holding_rate, service_level_z_score, min_reorder_qty, default_reorder_qty, default_safety_stock)
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VALUES (1, 25.00, 0.25, 1.96, 1, 5, 5)
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ON CONFLICT (id) DO UPDATE SET
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order_cost = EXCLUDED.order_cost,
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holding_rate = EXCLUDED.holding_rate,
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service_level_z_score = EXCLUDED.service_level_z_score,
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min_reorder_qty = EXCLUDED.min_reorder_qty,
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default_reorder_qty = EXCLUDED.default_reorder_qty,
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default_safety_stock = EXCLUDED.default_safety_stock;
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-- View to show thresholds with category names
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CREATE OR REPLACE VIEW stock_thresholds_view AS
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SELECT
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st.*,
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c.name as category_name,
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CASE
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WHEN st.category_id IS NULL AND st.vendor IS NULL THEN 'Global Default'
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WHEN st.category_id IS NULL THEN 'Vendor: ' || st.vendor
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WHEN st.vendor IS NULL THEN 'Category: ' || c.name
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ELSE 'Category: ' || c.name || ' / Vendor: ' || st.vendor
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END as threshold_scope
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FROM
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stock_thresholds st
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LEFT JOIN
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categories c ON st.category_id = c.cat_id
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ORDER BY
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CASE
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WHEN st.category_id IS NULL AND st.vendor IS NULL THEN 1
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WHEN st.category_id IS NULL THEN 2
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WHEN st.vendor IS NULL THEN 3
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ELSE 4
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END,
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c.name,
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st.vendor;
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-- History and status tables
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CREATE TABLE IF NOT EXISTS calculate_history (
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id BIGSERIAL PRIMARY KEY,
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start_time TIMESTAMP WITH TIME ZONE NOT NULL DEFAULT CURRENT_TIMESTAMP,
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end_time TIMESTAMP WITH TIME ZONE NULL,
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duration_seconds INTEGER,
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duration_minutes DECIMAL(10,2) GENERATED ALWAYS AS (duration_seconds::decimal / 60.0) STORED,
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total_products INTEGER DEFAULT 0,
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total_orders INTEGER DEFAULT 0,
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total_purchase_orders INTEGER DEFAULT 0,
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processed_products INTEGER DEFAULT 0,
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processed_orders INTEGER DEFAULT 0,
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processed_purchase_orders INTEGER DEFAULT 0,
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status calculation_status DEFAULT 'running',
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error_message TEXT,
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additional_info JSONB
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);
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CREATE TABLE IF NOT EXISTS calculate_status (
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module_name module_name PRIMARY KEY,
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last_calculation_timestamp TIMESTAMP WITH TIME ZONE NOT NULL DEFAULT CURRENT_TIMESTAMP
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);
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CREATE TABLE IF NOT EXISTS sync_status (
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table_name TEXT PRIMARY KEY,
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last_sync_timestamp TIMESTAMP WITH TIME ZONE NOT NULL DEFAULT CURRENT_TIMESTAMP,
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last_sync_id BIGINT
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);
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CREATE TABLE IF NOT EXISTS import_history (
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id BIGSERIAL PRIMARY KEY,
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table_name VARCHAR(50) NOT NULL,
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start_time TIMESTAMP WITH TIME ZONE NOT NULL DEFAULT CURRENT_TIMESTAMP,
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end_time TIMESTAMP WITH TIME ZONE NULL,
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duration_seconds INTEGER,
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duration_minutes DECIMAL(10,2) GENERATED ALWAYS AS (duration_seconds::decimal / 60.0) STORED,
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records_added INTEGER DEFAULT 0,
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records_updated INTEGER DEFAULT 0,
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is_incremental BOOLEAN DEFAULT FALSE,
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status calculation_status DEFAULT 'running',
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error_message TEXT,
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additional_info JSONB
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);
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-- Create all indexes after tables are fully created
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CREATE INDEX IF NOT EXISTS idx_last_calc ON calculate_status(last_calculation_timestamp);
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CREATE INDEX IF NOT EXISTS idx_last_sync ON sync_status(last_sync_timestamp);
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CREATE INDEX IF NOT EXISTS idx_table_time ON import_history(table_name, start_time); |