perf(db): physflat-covering индекс v2 с price_per_m2_rub в INCLUDE (#2177 follow-up) #2243
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Reference: lekss361/gendesign#2243
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Summary
price_per_m2_rub, которого нет в INCLUDEobjective_lots_physflat_covering_idx→ планер уходит в heap scan + external-merge sort (7 МБ диск): worst-case ~500 мс; с колонкой в INCLUDE — Index Only Scan, ~54 мс (EXPLAIN-доказано на двух тяжелейших проектах).183_...:CREATE INDEX IF NOT EXISTS ..._v2_idx(тот же ключ/partial-WHERE, INCLUDE + price_per_m2_rub) →DROPстарого →ANALYZE. v2-имя, а не DROP+CREATE того же — иначеIF NOT EXISTSпод старым именем стал бы no-op и молча пропустил пересборку. Без CONCURRENTLY — политика репо (deploy.yml гоняет .sql вBEGIN/COMMIT, зафиксировано в 168-й); plain CREATE под кратким SHARE-lock, деплой вне окна objective-scrape (вторник 04:00)._SUPPLY_ONLY_LOTS_SQL.Test plan
\di+ objective_lots_physflat_covering*— v2 есть, старого нет; EXPLAIN supply-only на тяжёлом проекте → Index Only ScanRefs #2177