#107 [FIX] 이미지 관련 쿼리 수정

Author: seobeeeee1001

src/main/java/com/example/trace/post/repository/PostRepositoryCustomImpl.java

@@ -41,15 +41,20 @@ private BooleanExpression postTypeEq(PostType postType) {
     }
 
     StringExpression imageUrlExpr = Expressions.cases()
-            .when(post.images.isEmpty())
-            .then("")
+            .when(post.images.isEmpty()).then("")
             .otherwise(
                     JPAExpressions
                             .select(postImage.imageUrl)
                             .from(postImage)
-                            .where(postImage.post.eq(post))
-                            .orderBy(postImage.id.asc())
-                            .limit(1)
+                            .where(
+                                    postImage.post.eq(post)
+                                            .and(postImage.id.eq(
+                                                    JPAExpressions
+                                                            .select(postImage.id.min())
+                                                            .from(postImage)
+                                                            .where(postImage.post.eq(post))
+                                            ))
+                            )
             );
     Expression<Long> totalEmotionCount = JPAExpressions
             .select(emotion.count())
@@ -142,7 +147,7 @@ public List<PostFeedDto> findPostsWithCursor(
                         post.user.providerId,
                         post.user.nickname,
                         post.user.profileImageUrl,
-                        imageUrlExpr, // 서브쿼리 사용
+                        imageUrlExpr,
                         post.viewCount,
                         post.commentList.size().longValue(),
                         post.createdAt,
@@ -154,10 +159,9 @@ public List<PostFeedDto> findPostsWithCursor(
                 .from(post)
                 .leftJoin(post.user)
                 .leftJoin(post.verification) // verification 조인 추가
-                .leftJoin(post.images, postImage).on(postImage.order.eq(1))
                 .where(
                         postTypeEq(postType),
-                        postCursorCondition(cursorDateTime, cursorId) // 커서 조건
+                        postCursorCondition(cursorDateTime, cursorId)
                 )
                 .orderBy(post.createdAt.desc(), post.id.desc())
                 .limit(size + 1)
@@ -198,7 +202,6 @@ public List<PostFeedDto> findPostsWithCursorAndSearch(
                 .from(post)
                 .leftJoin(post.user)
                 .leftJoin(post.verification)
-                .leftJoin(post.images, postImage).on(postImage.order.eq(1))
                 .where(
                         postTypeEq(postType),
                         postCursorCondition(cursorDateTime, cursorId),
@@ -305,7 +308,6 @@ public List<PostFeedDto> findUserPosts(
                 .from(post)
                 .leftJoin(post.user)
                 .leftJoin(post.verification)
-                .leftJoin(post.images, postImage).on(postImage.order.eq(1))
                 .where(
                         post.user.providerId.eq(providerId),
                         postCursorCondition(cursorDateTime, cursorId)
@@ -348,7 +350,6 @@ public List<PostFeedDto> findUserCommentedPosts(
                 .from(post)
                 .leftJoin(post.user)
                 .leftJoin(post.verification)
-                .leftJoin(post.images, postImage).on(postImage.order.eq(1))
                 .where(
                     post.id.in(
                         JPAExpressions
@@ -399,7 +400,6 @@ public List<PostFeedDto> findUserEmotedPosts(
                 .from(post)
                 .leftJoin(post.user)
                 .leftJoin(post.verification)
-                .leftJoin(post.images, postImage).on(postImage.order.eq(1))
                 .where(
                     post.id.in(
                         JPAExpressions