/**
  * @param string $tableAliasName
  * @return string
  */
 protected function getAttributeClauseQueryStringExtraPart($tableAliasName)
 {
     assert('is_string($tableAliasName)');
     if ($this->componentForm->isATypeOfCurrencyValue() && ($this->currencyConversionType == Report::CURRENCY_CONVERSION_TYPE_BASE || $this->currencyConversionType == Report::CURRENCY_CONVERSION_TYPE_SPOT)) {
         $quote = DatabaseCompatibilityUtil::getQuote();
         $currencyValue = new CurrencyValue();
         return " * {$quote}{$tableAliasName}{$quote}." . "{$quote}" . $currencyValue->getColumnNameByAttribute('rateToBase') . "{$quote}";
     }
 }