[refactor]: 조회성능을 향상시키기 위하여 places에 인덱스를 추가했어요

src/main/java/team7/inplace/place/application/PlaceService.java

@@ -73,7 +73,7 @@ public Page<PlaceInfo> getPlacesWithinRadius(
         List<PlaceInfo> placeInfos = convertToPlaceInfos(placesPage, placeIdToInfluencerName);
 
         // PlaceInfo 리스트를 Page로 변환하여 반환
-        return new PageImpl<>(placeInfos, placesPage.getPageable(), placeInfos.size());
+        return new PageImpl<>(placeInfos, placesPage.getPageable(), placesPage.getTotalElements());
     }
 
     private List<PlaceInfo> convertToPlaceInfos(Page<Place> placesPage,

src/main/java/team7/inplace/place/persistence/PlaceCustomRepositoryImpl.java

@@ -79,7 +79,7 @@ public Page<Place> findPlacesByDistanceAndFilters(String topLeftLongitude,
             .fetch();
 
         // 2. countQuery를 따로 선언하여 필요할 때만 실행
-        JPAQuery<Long> countQuery = jpaQueryFactory.select(place.count())
+        JPAQuery<Long> countQuery = jpaQueryFactory.select(place.id.count()) // 중복 제거
             .from(place)
             .leftJoin(video).on(video.place.eq(place))
             .leftJoin(influencer).on(video.influencer.eq(influencer))

src/main/resources/sql/schema.sql

@@ -20,7 +20,8 @@ create table places
     latitude        text                                                                 not null,
     longitude       text                                                                 not null,
     menu_img_url    text                                                                 null,
-    category        enum ('CAFE', 'JAPANESE', 'KOREAN', 'NONE', 'RESTAURANT', 'WESTERN') not null
+    category        enum ('CAFE', 'JAPANESE', 'KOREAN', 'NONE', 'RESTAURANT', 'WESTERN') not null,
+    index idx_long_lat (longitude(15), latitude(15))
 );
 
 create table places_menuboardphotourl_list

src/test/java/team7/inplace/place/persistence/PlaceRepositoryTest.java

@@ -134,6 +134,8 @@ public void init() {
 
         entityManager.persist(video1);
         entityManager.persist(video2);
+
+        pageable = PageRequest.of(0, 10);
     }
 
     @Test
@@ -178,6 +180,7 @@ public void test2() {
             influencers,
             pageable
         );
+        assertThat(foundPlaces.getTotalElements()).isEqualTo(3);
         // Then
         assertThat(foundPlaces).hasSize(3);
         assertThat(foundPlaces.getContent().get(0).getName()).isEqualTo("Place 2");
@@ -317,4 +320,38 @@ public void test7() {
         assertThat(foundPlaces).hasSize(1);
         assertThat(foundPlaces.getContent().get(0).getName()).isEqualTo("Place 4");
     }
+
+    // Pagenation
+    @Test
+    @DisplayName("page=1&size=2, 필터링 NULL, boundary[(10, 60), (50, 10)]")
+    public void test8() {
+
+//        * Place 3(10.0, 100.0) 제외
+//        * Place 2, Place 4는 page=0이라 제외, totalPages, totalElements에는 포함됨
+        // given
+        List<String> categories = null;
+        List<String> influencers = null;
+        pageable = PageRequest.of(1, 2);
+
+        // when
+        Page<Place> foundPlaces = placeRepository.findPlacesByDistanceAndFilters(
+            topLeftLongitude,
+            topLeftLatitude,
+            bottomRightLongitude,
+            bottomRightLatitude,
+            longitude,
+            latitude,
+            categories,
+            influencers,
+            pageable
+        );
+        // Then
+//        pagenation
+        assertThat(foundPlaces.getTotalElements()).isEqualTo(3);
+        assertThat(foundPlaces.getTotalPages()).isEqualTo(2);
+        assertThat(foundPlaces).hasSize(1);
+//        places
+        assertThat(foundPlaces.getContent().get(0).getName()).isEqualTo("Place 1");
+
+    }
 }