23 lines
828 B
MySQL
23 lines
828 B
MySQL
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CREATE TABLE customer_points (
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id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
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customer_id UUID NOT NULL,
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balance BIGINT DEFAULT 0 NOT NULL,
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created_at TIMESTAMP WITH TIME ZONE DEFAULT NOW(),
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updated_at TIMESTAMP WITH TIME ZONE DEFAULT NOW(),
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CONSTRAINT fk_customer_points_customer
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FOREIGN KEY (customer_id)
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REFERENCES customers(id)
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ON DELETE CASCADE,
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CONSTRAINT chk_customer_points_balance_non_negative
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CHECK (balance >= 0)
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);
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-- Create indexes
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CREATE INDEX idx_customer_points_customer_id ON customer_points(customer_id);
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CREATE INDEX idx_customer_points_updated_at ON customer_points(updated_at);
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-- Create unique constraint to ensure one point record per customer
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CREATE UNIQUE INDEX idx_customer_points_unique_customer ON customer_points(customer_id);
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