if (schemaVersion > 0)
res += ", Period='" + TARIFF::PeriodToString(td.tariffConf.period) + "'";
+if (schemaVersion > 1)
+ res += ", change_policy='" + TARIFF::ChangePolicyToString(td.tariffConf.changePolicy) + "'";
+
strprintf(¶m, " WHERE name='%s' LIMIT 1", tariffName.c_str());
res += param;