From aa3267c5a881489bbd31f5bcb3c882255d6a7d71 Mon Sep 17 00:00:00 2001
From: pricelees <priceelees@gmail.com>
Date: Sat, 11 Oct 2025 12:07:04 +0900
Subject: [PATCH] =?UTF-8?q?refactor:=20=EB=B0=B0=ED=8F=AC=20=ED=99=98?=
 =?UTF-8?q?=EA=B2=BD=EC=97=90=EC=84=9C=20slow-query=EC=9D=98=20=EC=9B=90?=
 =?UTF-8?q?=EC=9D=B8=EC=9D=B4=20=EB=90=9C=20NOT=20EXIST=20->=20LEFT=20JOIN?=
 =?UTF-8?q?=20=EC=88=98=EC=A0=95?=
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---
 .../infrastructure/persistence/ScheduleRepository.kt   | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/service/src/main/kotlin/com/sangdol/roomescape/schedule/infrastructure/persistence/ScheduleRepository.kt b/service/src/main/kotlin/com/sangdol/roomescape/schedule/infrastructure/persistence/ScheduleRepository.kt
index 4f8f4275..15850467 100644
--- a/service/src/main/kotlin/com/sangdol/roomescape/schedule/infrastructure/persistence/ScheduleRepository.kt
+++ b/service/src/main/kotlin/com/sangdol/roomescape/schedule/infrastructure/persistence/ScheduleRepository.kt
@@ -134,14 +134,14 @@ interface ScheduleRepository : JpaRepository<ScheduleEntity, Long> {
             s.id
         FROM
             schedule s
+        LEFT JOIN 
+            reservation r
+        ON 
+            r.schedule_id = s.id AND r.status IN ('PENDING', 'PAYMENT_IN_PROGRESS')
         WHERE 
             s.status = 'HOLD'
             AND s.hold_expired_at <= :now
-            AND NOT EXISTS (
-                SELECT 1
-                FROM reservation r
-                WHERE r.schedule_id = s.id AND (r.status = 'PENDING' OR r.status = 'PAYMENT_IN_PROGRESS')
-            )
+            AND r.id IS NULL
         FOR UPDATE SKIP LOCKED
         """, nativeQuery = true
     )