144970aadd
Add materialized view aggregating objective_corpus_room_month JOIN objective_complex_mapping (matched via objective_complex_name) за last 24 months, grouped by (domrf_obj_id, room_bucket). Cyrillic 'студия' normalised к ASCII 'studio' для consistency с layout_signature.py (PR A). Tables / cardinality (verified live на проде): - objective_corpus_room_month: 15 738 EKB rows, monthly 2025-05..2026-05 - objective_complex_mapping: 114 mapped EKB objects (7.5% coverage) - Expected MV size: ~459 rows (114 objs × ~4 room_buckets) - EXPLAIN: Hash Join 19k×114 → 8k pre-agg → 459 groups, no extra indexes needed UNIQUE INDEX (obj_id, room_bucket) enables REFRESH CONCURRENTLY (used by Python helper layout_velocity_refresh.py — НЕ scheduled в этом PR, будет triggered manually или через celery beat в follow-up). Migration applied auto-через deploy.yml (see .claude/rules/sql.md). Smoke verification — qa-tester after deploy (test_layout_velocity_mv.py removed because conftest.py / db fixture infra не существует в проекте; проще smoke через прод SELECT COUNT после migration apply).
72 lines
3.1 KiB
PL/PgSQL
72 lines
3.1 KiB
PL/PgSQL
-- 94_mv_layout_velocity.sql
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-- Issue #113 PR B — Materialized view per (obj_id, room_bucket) for top-layouts ranking.
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--
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-- Sources:
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-- objective_corpus_room_month — monthly per-corpus-per-room deals (19 738 rows, 2025-05..2026-05)
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-- objective_complex_mapping — project_name → domrf_obj_id mapping (114 mapped objects)
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--
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-- Join key:
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-- objective_corpus_room_month.project_name = objective_complex_mapping.objective_complex_name
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-- (verified: one project_name → at most one domrf_obj_id)
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--
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-- room_bucket normalisation:
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-- cyrillic 'студия' → ASCII 'studio' for consistency with layout_signature.py (PR A, Issue #113)
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-- values '1', '2', '3', '4+' are kept as-is
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--
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-- Window: last 24 months (rolling, anchored to NOW() at refresh time)
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-- Expected rows after aggregation: ~459 (obj_id × room_bucket combinations)
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--
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-- REFRESH CONCURRENTLY is safe after this migration because a UNIQUE index
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-- on (obj_id, room_bucket) is created immediately.
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-- Subsequent refreshes: layout_velocity_refresh.py helper (PR B) — not scheduled yet.
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--
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-- Deploy: auto-applied by deploy.yml via _schema_migrations tracking.
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-- Dependencies: none (no views depend on this MV at creation time).
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BEGIN;
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DROP MATERIALIZED VIEW IF EXISTS mv_layout_velocity CASCADE;
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CREATE MATERIALIZED VIEW mv_layout_velocity AS
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WITH last24mo AS (
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SELECT
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ocm.project_name,
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CASE
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WHEN ocm.room_bucket = 'студия' THEN 'studio'
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ELSE ocm.room_bucket
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END AS room_bucket,
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ocm.deals_total_count,
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ocm.deals_total_avg_area_m2,
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ocm.deals_total_avg_price_thousand_rub_per_m2,
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ocm.deals_total_vol_m2,
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ocm.report_month
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FROM objective_corpus_room_month ocm
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WHERE ocm.report_month >= (NOW() - INTERVAL '24 months')::date
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)
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SELECT
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cm.domrf_obj_id AS obj_id,
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l.room_bucket,
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SUM(l.deals_total_count)::int AS total_deals_24mo,
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AVG(l.deals_total_avg_area_m2)::numeric(10, 2) AS avg_area_m2,
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AVG(l.deals_total_avg_price_thousand_rub_per_m2)::numeric(12, 2)
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AS avg_price_thousand_rub_per_m2,
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SUM(l.deals_total_vol_m2)::numeric(12, 2) AS total_vol_m2,
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MIN(l.report_month) AS window_start,
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MAX(l.report_month) AS window_end,
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COUNT(DISTINCT l.report_month)::int AS months_with_data
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FROM last24mo l
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JOIN objective_complex_mapping cm
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ON cm.objective_complex_name = l.project_name
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WHERE l.room_bucket IS NOT NULL
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AND cm.domrf_obj_id IS NOT NULL
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GROUP BY cm.domrf_obj_id, l.room_bucket;
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-- UNIQUE index required for REFRESH CONCURRENTLY (future periodic refreshes)
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CREATE UNIQUE INDEX mv_layout_velocity_pk
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ON mv_layout_velocity (obj_id, room_bucket);
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-- Lookup index used by /best-layouts endpoint (PR C)
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CREATE INDEX mv_layout_velocity_obj_idx
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ON mv_layout_velocity (obj_id);
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COMMIT;
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