load_schema

# File activerecord/lib/active_record/tasks/database_tasks.rb, line 317
      def load_schema(db_config, format = ActiveRecord::Base.schema_format, file = nil) # :nodoc:
        file ||= dump_filename(db_config.name, format)

        verbose_was, Migration.verbose = Migration.verbose, verbose? && ENV["VERBOSE"]
        check_schema_file(file)
        ActiveRecord::Base.establish_connection(db_config)

        case format
        when :ruby
          load(file)
        when :sql
          structure_load(db_config, file)
        else
          raise ArgumentError, "unknown format #{format.inspect}"
        end
        ActiveRecord::InternalMetadata.create_table
        ActiveRecord::InternalMetadata[:environment] = db_config.env_name
        ActiveRecord::InternalMetadata[:schema_sha1] = schema_sha1(file)
      ensure
        Migration.verbose = verbose_was
      end