cache_dump_filename

# File activerecord/lib/active_record/tasks/database_tasks.rb, line 413
      def cache_dump_filename(namespace)
        filename = if namespace == "primary"
          "schema_cache.yml"
        else
          "#{namespace}_schema_cache.yml"
        end

        ENV["SCHEMA_CACHE"] || File.join(ActiveRecord::Tasks::DatabaseTasks.db_dir, filename)
      end