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Финальный PR issue #2045 (BE-3): GET /api/v1/trade-in/location-coef для LocationDrawer. FDW foreign table -> локальное зеркало osm_poi_ekb_local (TRUNCATE+INSERT, тот же паттерн что cad_buildings_local/cadastral_geo_match, избегает ~1.16s/row FDW round-trip) -> straight-line POI-скоринг, портированный из Site Finder poi_score.py::compute_poi_weighted_top7 (CATEGORY_WEIGHTS as-is, радиус 1200м для квартир вместо Ptica 2000м для участков). score->coef - новая MVP-эвристика (0.95..1.05, не откалибрована на реальных дельтах). Graceful fallback (не 500, не фабрикуем факторы): пустая/не отрефрешенная osm_poi_ekb_local или отсутствие lat/lon у оценки -> coef=1.0, factors=[], geo_source="unavailable". Scheduler: source=osm_poi_ekb_refresh, daily, зарегистрирован и в боевом dispatch (scheduler.py), и в kit-registry (product_handlers.py) - иначе test_kit_registry_completeness падает на ship-dark инварианте (#2192). Frontend wiring (mappers.ts/LocationDrawer.tsx) - вне scope, отдельная задача после проверки endpoint'а curl'ом на деплое.
42 lines
2.1 KiB
PL/PgSQL
42 lines
2.1 KiB
PL/PgSQL
-- 169_osm_poi_ekb_local.sql
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-- Local materialized mirror of gendesign_osm_poi_ekb (postgres_fdw foreign table, migration
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-- 168) for fast location-coef / POI scoring (#2045 BE-3, LocationDrawer).
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--
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-- WHY (mirrors 124_cad_buildings_local.sql — same perf fact measured for the analogous
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-- gendesign_cad_buildings FDW): a per-request FDW nearest-POI query would pay a per-row FDW
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-- round-trip (~1.16s/row without a geom index on the remote table) — UNUSABLE for a
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-- synchronous endpoint (GET /api/v1/trade-in/location-coef). Solution: materialize the FDW
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-- once (single bulk scan) into a LOCAL table with a real Point geom + GIST index, then run
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-- fast local ST_DWithin/ST_Distance queries per estimate.
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--
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-- This migration creates the EMPTY table + index only. It does NOT read the FDW — deploy
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-- never depends on the gendesign DB / FDW server being reachable. The table is populated by
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-- the refresh job (app/tasks/osm_poi_ekb_refresh.py), driven by the in-app scheduler
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-- (source='osm_poi_ekb_refresh', seed in 170_scrape_schedules_seed_osm_poi_ekb_refresh.sql).
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--
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-- DEPENDENCIES: PostGIS (postgis extension, present since geom on listings/houses).
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-- Idempotent: CREATE TABLE/INDEX IF NOT EXISTS. Safe to re-run.
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BEGIN;
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CREATE TABLE IF NOT EXISTS osm_poi_ekb_local (
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id bigserial PRIMARY KEY,
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category text,
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name text,
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lat double precision,
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lon double precision,
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geom geometry(Point, 4326)
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);
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COMMENT ON TABLE osm_poi_ekb_local IS
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'Local mirror of gendesign_osm_poi_ekb FDW (Site Finder OSM POI registry, EKB). '
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'Populated by app/tasks/osm_poi_ekb_refresh.py (single bulk FDW scan, TRUNCATE+INSERT). '
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'Point geom + GIST enables fast local nearest-POI scoring for '
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'app/services/location_coef.py (GET /api/v1/trade-in/location-coef, LocationDrawer). '
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'Migration 168/169. Refresh driven by scheduler source=osm_poi_ekb_refresh.';
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-- GIST on geom — required for ST_DWithin / ST_Distance nearest-POI scoring.
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CREATE INDEX IF NOT EXISTS osm_poi_ekb_local_geom_idx
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ON osm_poi_ekb_local USING GIST (geom);
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COMMIT;
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