Merge pull request 'fix(tradein): estimate 500 — алиас distance_m в ORDER BY' (#388) from fix/tradein-estimate-orderby-alias into main

tradein-mvp/backend/app/services/estimator.py

@@ -343,7 +343,10 @@ def _fetch_analogs(
               AND scraped_at > NOW() - (:fresh_days || ' days')::interval
               AND price_rub > 0
             ORDER BY (
-                distance_m / 1000.0
+                -- distance_m — это SELECT-алиас. В ORDER BY-ВЫРАЖЕНИИ (не голым
+                -- термом) PostgreSQL трактует имя как входную колонку listings,
+                -- которой нет → "column distance_m does not exist". Инлайним ST_Distance.
+                ST_Distance(geom::geography, ST_MakePoint(:lon, :lat)::geography) / 1000.0
                 + CASE WHEN :target_year IS NOT NULL AND year_built IS NOT NULL
                        THEN abs(year_built - :target_year) / 12.0 ELSE 0 END
                 + CASE WHEN :target_house_type IS NOT NULL AND house_type IS NOT NULL