d019b5327e
Multi-Source Integration Phase 1.1 thin-delta migrations. Gap audit showed 80%+ of planned schema already in 014/017/020/026/028/029/030/031 — this PR adds only the missing pieces: - 040 houses_extend: complex_id + avito_validated_at + cian_validated_at - 041 house_sources_noop: COMMENT aliases for ext_source/ext_id/matched_method - 042 listing_sources_price_divergence_idx: partial index for /search - 043 house_reviews_extend: likes column - 044 external_valuations_link: house_id/listing_id FKs + low/high price band - 045 house_placement_history_extend: source_confidence + notes + 3-col UNIQUE - 046 views: v_price_divergence + v_cross_source_health + v_data_quality All BEGIN/COMMIT, IF NOT EXISTS, FK ON DELETE CASCADE. Idempotent — safe re-apply on prod. Refs Master Plan sec 1, 4-8 + Cross_Source_Matching sec 2-4.
37 lines
1.6 KiB
PL/PgSQL
37 lines
1.6 KiB
PL/PgSQL
-- 044_external_valuations_link.sql
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-- Purpose: Link external_valuations to canonical entities (house/listing) + add
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-- sale band columns (low/high) per Cross_Source_Matching sec 13.1.
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-- Table base in 026 + 029. Existing UNIQUE (source, cache_key) preserved.
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-- Dependencies: 026_external_valuations.sql, 029_extend_matching_valuation_dynamics.sql,
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-- 009_houses.sql, 002_core_tables.sql (listings)
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BEGIN;
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ALTER TABLE external_valuations
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ADD COLUMN IF NOT EXISTS house_id bigint REFERENCES houses(id) ON DELETE CASCADE,
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ADD COLUMN IF NOT EXISTS listing_id bigint REFERENCES listings(id) ON DELETE CASCADE,
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ADD COLUMN IF NOT EXISTS low_price bigint,
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ADD COLUMN IF NOT EXISTS high_price bigint;
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CREATE INDEX IF NOT EXISTS external_valuations_house_idx
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ON external_valuations (house_id)
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WHERE house_id IS NOT NULL;
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CREATE INDEX IF NOT EXISTS external_valuations_listing_idx
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ON external_valuations (listing_id)
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WHERE listing_id IS NOT NULL;
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CREATE UNIQUE INDEX IF NOT EXISTS external_valuations_canonical_uniq_idx
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ON external_valuations (source, house_id, listing_id)
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WHERE house_id IS NOT NULL AND listing_id IS NOT NULL;
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COMMENT ON COLUMN external_valuations.house_id IS
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'FK to canonical house (post-matching). NULL for pre-matching cache rows keyed by cache_key.';
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COMMENT ON COLUMN external_valuations.listing_id IS
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'FK to canonical listing (post-matching). NULL for house-level estimates.';
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COMMENT ON COLUMN external_valuations.low_price IS
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'Lower bound of sale band (Cian sometimes returns; NULL for Avito IMV).';
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COMMENT ON COLUMN external_valuations.high_price IS
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'Upper bound of sale band.';
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COMMIT;
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