Merge branch '35947-board-issues-search-optmization-2' into 'master'

Default board_search_optimization feature flag

Closes #35947

See merge request gitlab-org/gitlab!28430

app/controllers/boards/issues_controller.rb

@@ -21,7 +21,7 @@ module Boards
     before_action :validate_id_list, only: [:bulk_move]
     before_action :can_move_issues?, only: [:bulk_move]
     before_action do
-      push_frontend_feature_flag(:board_search_optimization, board.group)
+      push_frontend_feature_flag(:board_search_optimization, board.group, default_enabled: true)
     end
 
     def index

app/services/boards/issues/list_service.rb

@@ -133,7 +133,7 @@ module Boards
 
       def can_attempt_search_optimization?
         params[:search].present? &&
-          Feature.enabled?(:board_search_optimization, board_group, default_enabled: false)
+          Feature.enabled?(:board_search_optimization, board_group, default_enabled: true)
       end
     end
   end

changelogs/unreleased/35947-board-issues-search-optmization-2.yml

+---
+title: Use CTE optimization for searching board issues
+merge_request: 28430
+author:
+type: fixed