20 lines
665 B
MySQL
20 lines
665 B
MySQL
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-- Migration 109: Product price history
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-- Track changes to product pricing
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CREATE TABLE IF NOT EXISTS product_price_history (
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id SERIAL PRIMARY KEY,
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product_id INTEGER NOT NULL REFERENCES products(id) ON DELETE CASCADE,
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price_type VARCHAR(50) NOT NULL DEFAULT 'sales_price',
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old_price DECIMAL(10,2),
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new_price DECIMAL(10,2),
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note TEXT,
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changed_by VARCHAR(255),
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changed_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP
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);
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CREATE INDEX IF NOT EXISTS idx_product_price_history_product
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ON product_price_history(product_id);
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CREATE INDEX IF NOT EXISTS idx_product_price_history_changed_at
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ON product_price_history(changed_at);
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