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

realestate-lab/tests/test_listing_db.py

@@ -73,6 +73,22 @@ def test_upsert_market_deal_area_null_skipped():
     assert cnt == 0
 
 
+def test_bulk_upsert_market_deals(monkeypatch):
+    from app import db
+    rows = [
+        {"house_type":"아파트","dong_code":"11590","dong":"신대방동","complex_name":"OO","area":42.0,
+         "deal_type":"전세","deposit":43000,"sale_amount":None,"deal_ym":"202606","floor":"5"},
+        {"house_type":"아파트","dong_code":"11590","dong":"신대방동","complex_name":"OO","area":42.0,
+         "deal_type":"전세","deposit":43000,"sale_amount":None,"deal_ym":"202606","floor":"5"},  # dup
+        {"house_type":"아파트","dong_code":"11590","dong":None,"complex_name":None,"area":None,
+         "deal_type":"매매","sale_amount":90000,"deal_ym":"202606","floor":"3"},  # area None → skip
+    ]
+    n = db.bulk_upsert_market_deals(rows)
+    assert n == 2                       # area=None 1건 skip
+    deals = db.get_market_deals_for("11590","OO",42.0,"전세",months=120)
+    assert len(deals) == 1              # dup dedup → 1건
+
+
 def test_get_listing_matches_json_parsed():
     """get_listing_matches()도 get_unnotified_listing_matches()와 동일하게
     regulation_flags/reasons를 list로 파싱해 반환해야 한다."""