107 lines
4.3 KiB
SQL
107 lines
4.3 KiB
SQL
-- 日内新闻候选与验证持久化结构
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CREATE TABLE IF NOT EXISTS intraday_news_candidate (
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id BIGSERIAL PRIMARY KEY,
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candidate_date DATE NOT NULL,
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discovered_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
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event_type TEXT NOT NULL,
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provider_name TEXT NOT NULL,
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model_name TEXT,
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provider_country TEXT,
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title TEXT NOT NULL,
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summary TEXT,
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candidate_urls JSONB NOT NULL DEFAULT '[]'::jsonb,
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discovery_source TEXT NOT NULL,
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discovery_query TEXT,
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discovery_evidence JSONB NOT NULL DEFAULT '{}'::jsonb,
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normalized_key TEXT NOT NULL,
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status TEXT NOT NULL DEFAULT 'candidate',
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verification_confidence TEXT NOT NULL DEFAULT 'candidate',
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verification_notes TEXT,
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created_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
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updated_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP
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);
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DO $$
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BEGIN
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IF NOT EXISTS (
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SELECT 1 FROM pg_constraint WHERE conname = 'chk_intraday_news_candidate_status'
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) THEN
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ALTER TABLE intraday_news_candidate
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ADD CONSTRAINT chk_intraday_news_candidate_status
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CHECK (status IN ('candidate', 'verifying', 'verified', 'rejected', 'stale'));
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END IF;
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IF NOT EXISTS (
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SELECT 1 FROM pg_constraint WHERE conname = 'chk_intraday_news_candidate_confidence'
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) THEN
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ALTER TABLE intraday_news_candidate
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ADD CONSTRAINT chk_intraday_news_candidate_confidence
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CHECK (verification_confidence IN ('candidate', 'secondary_confirmed', 'official_confirmed'));
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END IF;
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END
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$$;
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CREATE UNIQUE INDEX IF NOT EXISTS idx_intraday_news_candidate_normalized_key
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ON intraday_news_candidate(normalized_key);
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CREATE INDEX IF NOT EXISTS idx_intraday_news_candidate_date
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ON intraday_news_candidate(candidate_date DESC, discovered_at DESC);
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CREATE INDEX IF NOT EXISTS idx_intraday_news_candidate_status
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ON intraday_news_candidate(status);
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CREATE INDEX IF NOT EXISTS idx_intraday_news_candidate_provider_event
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ON intraday_news_candidate(provider_name, event_type, candidate_date DESC);
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COMMENT ON TABLE intraday_news_candidate IS '搜索引擎与 LLM 发现的日内新闻候选池，尚未直接进入正式日报事实层';
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COMMENT ON COLUMN intraday_news_candidate.candidate_urls IS '候选来源 URL 数组，按发现层输出原样保留';
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COMMENT ON COLUMN intraday_news_candidate.discovery_evidence IS '发现阶段原始证据 JSONB，例如搜索命中、LLM 归纳结果';
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COMMENT ON COLUMN intraday_news_candidate.normalized_key IS '同日同事件的去重键，避免重复发现候选';
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CREATE TABLE IF NOT EXISTS intraday_news_verification (
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id BIGSERIAL PRIMARY KEY,
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candidate_id BIGINT NOT NULL REFERENCES intraday_news_candidate(id) ON DELETE CASCADE,
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verified_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
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verifier_source TEXT NOT NULL,
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verifier_url TEXT,
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verifier_status TEXT NOT NULL,
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extracted_facts JSONB NOT NULL DEFAULT '{}'::jsonb,
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notes TEXT,
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created_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP
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);
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DO $$
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BEGIN
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IF NOT EXISTS (
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SELECT 1 FROM pg_constraint WHERE conname = 'chk_intraday_news_verification_status'
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) THEN
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ALTER TABLE intraday_news_verification
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ADD CONSTRAINT chk_intraday_news_verification_status
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CHECK (verifier_status IN ('matched', 'contradicted', 'insufficient', 'error'));
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END IF;
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END
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$$;
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CREATE INDEX IF NOT EXISTS idx_intraday_news_verification_candidate_verified_at
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ON intraday_news_verification(candidate_id, verified_at DESC);
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CREATE INDEX IF NOT EXISTS idx_intraday_news_verification_source
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ON intraday_news_verification(verifier_source);
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CREATE INDEX IF NOT EXISTS idx_intraday_news_verification_status
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ON intraday_news_verification(verifier_status);
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COMMENT ON TABLE intraday_news_verification IS '日内新闻候选的验证轨迹，记录验证来源、状态和提取事实';
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COMMENT ON COLUMN intraday_news_verification.extracted_facts IS '验证阶段提取出的结构化事实 JSONB';
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DO $$
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BEGIN
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IF NOT EXISTS (
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SELECT 1
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FROM pg_trigger
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WHERE tgname = 'intraday_news_candidate_updated_at'
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) THEN
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CREATE TRIGGER intraday_news_candidate_updated_at
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BEFORE UPDATE ON intraday_news_candidate
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FOR EACH ROW
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EXECUTE FUNCTION update_updated_at_column();
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END IF;
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END
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$$;
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