Preload projects to prevent N+1 when populating project name

app/models/ci/daily_build_group_report_result.rb

@@ -11,6 +11,8 @@ module Ci
 
     validates :data, json_schema: { filename: "daily_build_group_report_result_data" }
 
+    scope :with_preloaded_projects, -> { preload(:project) }
+
     def self.upsert_reports(data)
       upsert_all(data, unique_by: :index_daily_build_group_report_results_unique_columns) if data.any?
     end

changelogs/unreleased/improve-group-coverage-query-performance.yml

+---
+title: Preload projects to prevent N+1 when populating project name
+merge_request: 40769
+author:
+type: performance

ee/app/finders/ci/daily_build_group_report_results_by_group_finder.rb

@@ -19,6 +19,10 @@ module Ci
 
     private
 
+    def query
+      super.with_preloaded_projects
+    end
+
     def query_allowed?
       can?(current_user, :read_group_build_report_results, @group)
     end