fix: N+1 문제 해

Author: rnqhstmd

apps/commerce-api/src/main/java/com/loopers/infrastructure/product/ProductJpaRepository.java

@@ -19,9 +19,10 @@ public interface ProductJpaRepository extends JpaRepository<Product, Long> {
     @Query("SELECT p FROM Product p WHERE p.id IN :ids")
     List<Product> findAllByIds(@Param("ids") Collection<Long> ids);
 
-    @EntityGraph(attributePaths = {"brand"})
-    @Query("SELECT p FROM Product p " +
-            "WHERE (:brandId IS NULL OR p.brand.id = :brandId)")
+    @Query(value = "SELECT p FROM Product p " +
+            "WHERE (:brandId IS NULL OR p.brand.id = :brandId)",
+            countQuery = "SELECT COUNT(p) FROM Product p " +
+                    "WHERE (:brandId IS NULL OR p.brand.id = :brandId)")
     Page<Product> findProducts(@Param("brandId") Long brandId, Pageable pageable);
 
     @Lock(LockModeType.PESSIMISTIC_WRITE)