35 lines
1.5 KiB
SQL
35 lines
1.5 KiB
SQL
-- 创建注册优惠码表
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CREATE TABLE IF NOT EXISTS promo_codes (
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id BIGSERIAL PRIMARY KEY,
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code VARCHAR(32) NOT NULL UNIQUE,
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bonus_amount DECIMAL(20,8) NOT NULL DEFAULT 0,
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max_uses INT NOT NULL DEFAULT 0,
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used_count INT NOT NULL DEFAULT 0,
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status VARCHAR(20) NOT NULL DEFAULT 'active',
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expires_at TIMESTAMPTZ DEFAULT NULL,
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notes TEXT DEFAULT NULL,
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created_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
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updated_at TIMESTAMPTZ NOT NULL DEFAULT NOW()
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);
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-- 创建优惠码使用记录表
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CREATE TABLE IF NOT EXISTS promo_code_usages (
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id BIGSERIAL PRIMARY KEY,
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promo_code_id BIGINT NOT NULL REFERENCES promo_codes(id) ON DELETE CASCADE,
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user_id BIGINT NOT NULL REFERENCES users(id) ON DELETE CASCADE,
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bonus_amount DECIMAL(20,8) NOT NULL,
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used_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
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UNIQUE(promo_code_id, user_id)
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);
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-- 索引
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CREATE INDEX IF NOT EXISTS idx_promo_codes_status ON promo_codes(status);
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CREATE INDEX IF NOT EXISTS idx_promo_codes_expires_at ON promo_codes(expires_at);
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CREATE INDEX IF NOT EXISTS idx_promo_code_usages_promo_code_id ON promo_code_usages(promo_code_id);
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CREATE INDEX IF NOT EXISTS idx_promo_code_usages_user_id ON promo_code_usages(user_id);
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COMMENT ON TABLE promo_codes IS '注册优惠码';
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COMMENT ON TABLE promo_code_usages IS '优惠码使用记录';
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COMMENT ON COLUMN promo_codes.max_uses IS '最大使用次数，0表示无限制';
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COMMENT ON COLUMN promo_codes.status IS '状态: active, disabled';
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