cache_dump_filename

# File activerecord/lib/active_record/tasks/database_tasks.rb, line 440
      def cache_dump_filename(db_config_name, schema_cache_path: nil)
        filename = if ActiveRecord::Base.configurations.primary?(db_config_name)
          "schema_cache.yml"
        else
          "#{db_config_name}_schema_cache.yml"
        end

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