1e44ef09f4
feat(tradein): per-source listing price history — schema + daily snapshot ( #570 )
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Migration 079 adds listing_source_snapshots (daily per-source snapshot, plain
table — partitioning deferred), listing_source_events (change-log), an
offer_price_history.listing_source_id backlink, and v_listing_source_price_on_date.
snapshot_listing_sources() (app/tasks) writes a daily snapshot of the existing
18,355 listing_sources rows and diffs today's price vs the prior snapshot into
price_change events — both set-based SQL (CTE), no row loop. Wired into the
in-app scheduler (source='listing_source_snapshot', enabled=true: pure internal
DB, no external calls, window 01:00-02:00 UTC before the backfill jobs). History
accumulates immediately, independent of the dormant scrapers.
Prod dry-run (rollback): migration applies clean; snapshot inserts 18,355 rows.
Same-day double-fire impossible (_claim_run advances next_run_at + has_running_run
guard) so no duplicate price_change events.
Closes #570
2026-05-29 17:14:22 +05:00
1731704ddc
feat(tradein): houses.cian_zhk_url column + backfill ( #568 ) ( #627 )
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2026-05-28 13:57:43 +00:00
1ce9e10012
feat(tradein): persistent infra для backfill scripts (PR F) ( #592 )
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2026-05-27 06:59:54 +00:00
ba9cc3aef1
feat(tradein/cian): valuation backfill + runner script для prod ( #539 )
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2026-05-24 15:16:45 +00:00
bc594e3f79
feat(tradein/cian): batch backfill task для offer_price_history + houses_price_dynamics ( #535 )
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2026-05-24 14:55:47 +00:00
52716a46c6
fix(tradein): geocode backfill + remove Avito exclusion from estimator ( #490 )
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2026-05-23 20:03:48 +00:00
e46b7d778e
feat(tradein): search matview + indexes (Phase 3.1) ( #469 )
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Multi-Source Integration Phase 3.1. Foundation for /api/v1/search p95 < 100ms on 100K+ listings.
SQL 050_search_optimization.sql:
- CREATE EXTENSION IF NOT EXISTS pg_trgm
- ALTER listings ADD COLUMN tsv tsvector GENERATED ALWAYS AS (...) STORED
- 10 indexes (geom GIST, composite, gin_trgm, GIN tsv, partial kadastr, ...)
- CREATE MATERIALIZED VIEW listings_search_mv (per-listing aggregated across sources)
- 5 matview indexes (UNIQUE on listing_id for REFRESH CONCURRENTLY)
Celery task tradein.refresh_search_matview:
- REFRESH MATERIALIZED VIEW CONCURRENTLY listings_search_mv (psycopg v3)
- Logged duration via logger.info
- Graceful try/except ImportError fallback (no celery_app.py in tradein-mvp yet)
- Beat schedule snippet in docstring for future wiring
Fixups (deep-code-reviewer 2026-05-23):
- h.ratings_count → h.reviews_count (alias house_ratings_count preserved)
- Strip +psycopg dialect prefix from DSN for libpq compat
Refs Master Plan sec 5.1 + 6.5 + 10.1.
2026-05-23 14:01:18 +00:00
