Celes Renata
24 lines
1.1 KiB
SQL
24 lines
1.1 KiB
SQL
-- Stonks Oracle - Trend evidence mappings
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-- Links trend_windows to the documents that contributed as evidence,
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-- storing the evidence type (supporting/opposing), rank score, and
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-- weight breakdown for explainability and drill-down queries.
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-- Requirements: 6.5, 10.4
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CREATE TABLE trend_evidence (
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id UUID PRIMARY KEY DEFAULT uuid_generate_v4(),
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trend_window_id UUID NOT NULL REFERENCES trend_windows(id) ON DELETE CASCADE,
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document_id UUID NOT NULL,
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evidence_type VARCHAR(20) NOT NULL DEFAULT 'supporting', -- supporting | opposing
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rank_score FLOAT DEFAULT 0.0,
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weight_component FLOAT DEFAULT 0.0,
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impact_component FLOAT DEFAULT 0.0,
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recency_component FLOAT DEFAULT 0.0,
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confidence_component FLOAT DEFAULT 0.0,
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sentiment_value FLOAT DEFAULT 0.0,
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created_at TIMESTAMPTZ NOT NULL DEFAULT NOW()
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);
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CREATE INDEX idx_trend_evidence_trend ON trend_evidence(trend_window_id);
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CREATE INDEX idx_trend_evidence_doc ON trend_evidence(document_id);
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CREATE INDEX idx_trend_evidence_type ON trend_evidence(trend_window_id, evidence_type);
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