format

# File activerecord/lib/active_record/migration/default_schema_versions_formatter.rb, line 13
      def format(versions)
        sm_table = connection.quote_table_name(connection.pool.schema_migration.table_name)

        if versions.is_a?(Array)
          sql = +"INSERT INTO #{sm_table} (version) VALUES\n"
          sql << versions.reverse.map { |v| "(#{connection.quote(v)})" }.join(",\n")
          sql << ";"
          sql
        else
          "INSERT INTO #{sm_table} (version) VALUES (#{connection.quote(versions)});"
        end
      end