1ad2565af1
- 019: ALTER listings (windows_view_type, wcs counts, ceiling_height,
repair_type, views, living_area, bedrooms, balconies, loggias,
description_minhash, cadastral_number, phones, bargain_allowed,
sale_type, house_source/ext_id, metro_stations)
- 020: ALTER houses (BTI: series_name, entrances, flat_count, is_emergency,
heat/gas/overlap types; Cian: cian_internal_house_id,
management_company_id, transport_accessibility_rate,
advantages/banks/builders/houses_by_turn jsonb + GIN indexes)
- 021: CREATE management_companies + FK to houses.management_company_id
- 022: CREATE agents table + agent_id_fk on listings
- 023: CREATE offer_price_history (per-listing price change timeline)
- 024: CREATE houses_price_dynamics (monthly price/sqm series)
- 025: CREATE house_reliability_checks (наш.дом.рф checks)
- 026: CREATE external_valuations (unified Avito IMV + Cian Valuation cache)
- 027: CREATE EXTENSION pgcrypto + cian_session_cookies (encrypted)
- 028: CREATE house_sources, listing_sources, house_address_aliases
+ address_fingerprint/canonical/merged_into alters
Refs: decisions/CianScraper_v1_Implementation_Plan.md Stage 1
decisions/Schema_Cian_SERP_Inventory.md sec 16, 20.3, 26
decisions/Cross_Source_Matching_Strategy.md sec 2
45 lines
1.8 KiB
PL/PgSQL
45 lines
1.8 KiB
PL/PgSQL
-- 021_management_companies.sql
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-- Purpose: Create management_companies table for ТСЖ/УК data from Cian Valuation Calculator.
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-- Also adds FK constraint to houses.management_company_id (column added in 020).
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-- Dependencies:
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-- - 020_houses_alter_cian.sql must be applied first (adds management_company_id column to houses)
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-- Deploy order: Apply after 020.
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--
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-- Sources: Schema_Cian_SERP_Inventory sec 26.3
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BEGIN;
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CREATE TABLE IF NOT EXISTS management_companies (
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id bigserial PRIMARY KEY,
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name text NOT NULL, -- 'ТСЖ "УЧИТЕЛЕЙ, 18"'
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phones text[], -- array of phone strings
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email text,
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opening_hours text, -- raw string or serialised schedule
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chief_name text, -- ФИО руководителя
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ext_source text NOT NULL DEFAULT 'cian',
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ext_id bigint, -- Cian's internal management company ID if available
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created_at timestamptz NOT NULL DEFAULT NOW(),
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UNIQUE (ext_source, name, ext_id)
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);
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-- ext_source + ext_id for dedup when Cian provides numeric ID
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CREATE INDEX IF NOT EXISTS mc_ext_source_id_idx
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ON management_companies (ext_source, ext_id)
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WHERE ext_id IS NOT NULL;
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-- Text search on company name
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CREATE INDEX IF NOT EXISTS mc_name_idx
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ON management_companies (name);
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-- Add FK from houses.management_company_id to this table
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-- Column management_company_id was added in 020_houses_alter_cian.sql as plain bigint
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ALTER TABLE houses
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DROP CONSTRAINT IF EXISTS houses_management_company_id_fkey;
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ALTER TABLE houses
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ADD CONSTRAINT houses_management_company_id_fkey
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FOREIGN KEY (management_company_id)
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REFERENCES management_companies (id)
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ON DELETE SET NULL;
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COMMIT;
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