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49 lines
2.5 KiB
SQL
49 lines
2.5 KiB
SQL
CREATE TABLE disputes (
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id BIGINT PRIMARY KEY,
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order_id BIGINT NOT NULL UNIQUE,
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initiator_id BIGINT NOT NULL,
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initiator_name VARCHAR(100) NOT NULL,
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respondent_id BIGINT NOT NULL,
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reason TEXT NOT NULL,
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evidence TEXT[] DEFAULT ARRAY[]::TEXT[],
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status VARCHAR(20) NOT NULL DEFAULT 'open',
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result VARCHAR(30),
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respondent_reason TEXT,
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respondent_evidence TEXT[] DEFAULT ARRAY[]::TEXT[],
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appeal_reason TEXT,
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appealed_at TIMESTAMPTZ,
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resolved_by BIGINT,
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resolved_at TIMESTAMPTZ,
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search_text TEXT GENERATED ALWAYS AS (
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initiator_name || ' ' || reason || ' ' || coalesce(respondent_reason, '') || ' ' || coalesce(appeal_reason, '')
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) STORED,
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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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CONSTRAINT chk_dispute_status CHECK (status IN ('open', 'reviewing', 'resolved', 'appealed')),
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CONSTRAINT chk_dispute_result CHECK (result IS NULL OR result IN ('full_refund', 'full_payment', 'partial_refund'))
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);
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-- 基础索引
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CREATE INDEX idx_disputes_order ON disputes(order_id);
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CREATE INDEX idx_disputes_status ON disputes(status, created_at DESC);
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CREATE INDEX idx_disputes_initiator ON disputes(initiator_id);
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-- 三元组索引用于争议内容搜索
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CREATE INDEX idx_disputes_search_trgm ON disputes USING gin(search_text gin_trgm_ops);
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-- 复合索引优化状态查询
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CREATE INDEX idx_disputes_status_created ON disputes(status, created_at DESC);
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-- 参与者索引
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CREATE INDEX idx_disputes_initiator_status ON disputes(initiator_id, status, created_at DESC);
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CREATE INDEX idx_disputes_respondent_status ON disputes(respondent_id, status, created_at DESC);
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-- 数组索引优化证据查询
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CREATE INDEX idx_disputes_evidence ON disputes USING gin(evidence);
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CREATE INDEX idx_disputes_respondent_evidence ON disputes USING gin(respondent_evidence);
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CREATE TRIGGER trigger_disputes_updated_at
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BEFORE UPDATE ON disputes
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FOR EACH ROW
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EXECUTE FUNCTION update_updated_at_column(); |