perf(realestate): market_deals 배치 upsert(단일 conn)로 collect 속도 개선

realestate-lab/app/listing_collector.py

@@ -7,8 +7,8 @@ import requests
 from datetime import date
 
 from .lawd_codes import LAWD_CODES
-from .db import (get_listing_criteria, upsert_listing, upsert_market_deal,
-                 save_listing_collect_log)
+from .db import (get_listing_criteria, upsert_listing,
+                 bulk_upsert_market_deals, save_listing_collect_log)
 
 logger = logging.getLogger("realestate-lab")
 
@@ -108,7 +108,7 @@ def _molit_call(op: str, lawd: str, ym: str):
 def _fetch_molit_all():
     """대상 동 시군구코드 × 유형 × 최근 2개월 전월세·매매 실거래 수집→market_deals.
     Returns (saved_count, diag). diag = 'calls=N saved=M [err=<첫에러>]' 관측용."""
-    saved = 0
+    all_deals = []
     calls = 0
     first_err = None
     lawds = set(LAWD_CODES.values())
@@ -128,11 +128,11 @@ def _fetch_molit_all():
                             d = parser(raw, htype)
                             d["dong_code"] = lawd
                             d["dong"] = (raw.get("umdNm") or "").strip() or None
-                            upsert_market_deal(d)
-                            saved += 1
+                            all_deals.append(d)
                         except Exception as e:
                             logger.warning("MOLIT 파싱 실패: %s", e)
                     time.sleep(0.3)
+    saved = bulk_upsert_market_deals(all_deals)
     diag = f"calls={calls} saved={saved}" + (f" err={first_err}" if first_err else "")
     return saved, diag