d04ee38347
- 047_cian_history_sanitize.sql: dedup existing rows then add UNIQUE(listing_id, change_time) so ON CONFLICT DO NOTHING in cian_detail.save_detail_enrichment suppresses real duplicates, not just PK collisions. Idempotent via DO $$ pg_constraint guard. - cian_valuation._save_to_cache: fill price_rub/accuracy (mig 026), low_price/high_price (mig 044), house_id/listing_id (mig 044). COALESCE on house_id/listing_id preserves existing FK on cache refresh. - cian_valuation._load_from_cache: restore low_price/high_price from DB into sale_price_from/sale_price_to so callers get the full band. - estimate_via_cian_valuation: add house_id/listing_id kwargs (default None), pass through to _save_to_cache. No callsite changes needed (defaults preserve existing behavior; PR 4 can supply IDs when context is available).
29 lines
882 B
PL/PgSQL
29 lines
882 B
PL/PgSQL
-- 047_cian_history_sanitize.sql
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-- Purpose: Add UNIQUE(listing_id, change_time) to offer_price_history so that
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-- the `ON CONFLICT DO NOTHING` in cian_detail.save_detail_enrichment
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-- is semantically correct (currently only suppresses PK conflicts).
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-- Dependencies: 023_offer_price_history.sql
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-- Deploy order: Apply after 046.
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BEGIN;
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-- Dedupe existing rows before adding constraint (safe if table empty in prod).
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DELETE FROM offer_price_history a
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USING offer_price_history b
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WHERE a.id > b.id
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AND a.listing_id = b.listing_id
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AND a.change_time = b.change_time;
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DO $$
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BEGIN
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IF NOT EXISTS (
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SELECT 1 FROM pg_constraint
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WHERE conname = 'offer_price_history_listing_change_uq'
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) THEN
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ALTER TABLE offer_price_history
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ADD CONSTRAINT offer_price_history_listing_change_uq
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UNIQUE (listing_id, change_time);
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END IF;
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END $$;
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COMMIT;
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