File size: 2,529 Bytes
776244c | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 | -- Enable pgvector extension
CREATE EXTENSION IF NOT EXISTS vector;
-- ── Documents table ────────────────────────────────────────────────────────────
CREATE TABLE IF NOT EXISTS documents (
doc_id UUID PRIMARY KEY,
doc_name TEXT NOT NULL,
jurisdiction TEXT NOT NULL,
doc_type TEXT NOT NULL,
source_url TEXT NOT NULL,
effective_date DATE,
gazette_number TEXT,
total_chunks INTEGER DEFAULT 0,
ingested_at TIMESTAMPTZ DEFAULT NOW(),
is_active BOOLEAN DEFAULT TRUE
);
-- ── Legal chunks table ─────────────────────────────────────────────────────────
CREATE TABLE IF NOT EXISTS legal_chunks (
chunk_id UUID PRIMARY KEY,
doc_id UUID REFERENCES documents(doc_id) ON DELETE CASCADE,
jurisdiction TEXT NOT NULL,
doc_type TEXT NOT NULL,
doc_name TEXT NOT NULL,
section_id TEXT NOT NULL,
section_title TEXT NOT NULL,
section_hierarchy TEXT[] NOT NULL DEFAULT '{}',
text TEXT NOT NULL,
effective_date DATE,
superseded_by UUID REFERENCES legal_chunks(chunk_id),
status TEXT NOT NULL DEFAULT 'active',
source_url TEXT NOT NULL,
page_number INTEGER NOT NULL,
embedding vector(768), -- matches EMBEDDING_DIMENSION in .env
created_at TIMESTAMPTZ DEFAULT NOW()
);
-- ── Indexes ────────────────────────────────────────────────────────────────────
-- HNSW index for fast approximate nearest neighbor search
CREATE INDEX IF NOT EXISTS legal_chunks_embedding_idx
ON legal_chunks
USING hnsw (embedding vector_cosine_ops)
WITH (m = 16, ef_construction = 64);
-- Filter indexes for metadata queries
CREATE INDEX IF NOT EXISTS legal_chunks_jurisdiction_idx
ON legal_chunks (jurisdiction);
CREATE INDEX IF NOT EXISTS legal_chunks_doc_type_idx
ON legal_chunks (doc_type);
CREATE INDEX IF NOT EXISTS legal_chunks_section_id_idx
ON legal_chunks (section_id);
CREATE INDEX IF NOT EXISTS legal_chunks_status_idx
ON legal_chunks (status);
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