[FEAT] 체크리스트 기반 방 필터링 조회 쿼리 최적화

.gitignore

@@ -53,6 +53,7 @@ pinpoint-agent/tools/
 
 ### env ###
 .env
+/analysis/
 
 # macOS artefacts
 .DS_Store

src/main/java/com/project/dorumdorum/domain/room/application/dto/response/FindRoomsResponse.java

@@ -16,5 +16,6 @@ public record FindRoomsResponse(
         String title,
         String hostNickname,
         RoomStatus roomStatus,
-        String residencePeriod // 거주기간 (예: "학기(16주)", "반기(24주)", "계절학기")
+        String residencePeriod, // 거주기간 (예: "학기(16주)", "반기(24주)", "계절학기")
+        Integer remaining
 ) {}

src/main/java/com/project/dorumdorum/domain/room/application/usecase/FindRoomsUseCase.java

@@ -9,11 +9,13 @@
 import com.project.dorumdorum.global.pagination.PaginationHelper;
 import lombok.RequiredArgsConstructor;
 import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
 
 import java.util.List;
 
 @Service
 @RequiredArgsConstructor
+@Transactional(readOnly = true)
 public class FindRoomsUseCase {
 
     private final RoomService roomService;
@@ -31,13 +33,16 @@ public CursorPage<FindRoomsResponse> execute(ChecklistFilterRequest request) {
                 request,
                 params.cursorCreatedAt(),
                 params.cursorId(),
+                params.cursorRemaining(),
                 params.limitPlusOne()
         );
 
         return PaginationHelper.buildCursorPage(
                 responses,
                 LIMIT,
-                last -> CursorCodec.encode(last.createdAt(), last.roomNo())
+                last -> request.sortType() == ChecklistFilterRequest.SortType.REMAINING
+                        ? CursorCodec.encode(last.remaining(), last.createdAt(), last.roomNo())
+                        : CursorCodec.encode(last.createdAt(), last.roomNo())
         );
     }
 }

src/main/java/com/project/dorumdorum/domain/room/domain/entity/Room.java

@@ -13,9 +13,7 @@
 @Table(
         indexes = {
                 @Index(name = "idx_room_status_created", columnList = "room_status, created_at, room_no"),
-                @Index(name = "idx_room_status_remaining_created", columnList = "room_status, remaining, created_at, room_no"),
-                @Index(name = "idx_room_type", columnList = "room_type"),
-                @Index(name = "idx_room_capacity", columnList = "capacity"),
+                @Index(name = "idx_room_status_remaining_created", columnList = "room_status, remaining, created_at DESC, room_no DESC"),
                 @Index(name = "idx_room_residence_period", columnList = "residence_period"),
                 @Index(name = "idx_room_host_user_no", columnList = "host_user_no")
         }

src/main/java/com/project/dorumdorum/domain/room/domain/repository/RoomQueryRepository.java

@@ -13,6 +13,7 @@ List<FindRoomsResponse> findByCursor(
             ChecklistFilterRequest request,
             LocalDateTime cursorCreatedAt,
             String cursorId,
+            Integer cursorRemaining,
             int limitPlusOne
     );
 

src/main/java/com/project/dorumdorum/domain/room/domain/service/RoomService.java

@@ -47,9 +47,10 @@ public List<FindRoomsResponse> searchByCursor(
             ChecklistFilterRequest request,
             LocalDateTime cursorCreatedAt,
             String cursorId,
+            Integer cursorRemaining,
             int limitPlusOne
     ) {
-        return roomRepository.findByCursor(request, cursorCreatedAt, cursorId, limitPlusOne);
+        return roomRepository.findByCursor(request, cursorCreatedAt, cursorId, cursorRemaining, limitPlusOne);
     }
 
     public FindRoomsResponse findMyRoom(String userNo) {