這裡的排序來源

app\code\core\Mage\Catalog\Model\Resource\Config.php

    /**
     * Retrieve Used Product Attributes for Catalog Product Listing Sort By
     *
     * @return array
     */
    public function getAttributesUsedForSortBy()
    {
        $adapter = $this->_getReadAdapter();
        $storeLabelExpr = $adapter->getCheckSql('al.value IS NULL', 'main_table.frontend_label','al.value');
        $select = $adapter->select()
            ->from(array('main_table' => $this->getTable('eav/attribute')))
            ->join(
                array('additional_table' => $this->getTable('catalog/eav_attribute')),
                'main_table.attribute_id = additional_table.attribute_id',
                array()
            )
            ->joinLeft(
                array('al' => $this->getTable('eav/attribute_label')),
                'al.attribute_id = main_table.attribute_id AND al.store_id = ' . (int)$this->getStoreId(),
                array('store_label' => $storeLabelExpr)
            )
            ->where('main_table.entity_type_id = ?', (int)$this->getEntityTypeId())
            ->where('additional_table.used_for_sort_by = ?', 1);

        return $adapter->fetchAll($select);
    }
 

SELECT * FROM `catalog_eav_attribute` WHERE `used_for_sort_by` = 1

SELECT * FROM `eav_attribute` WHERE `attribute_code` LIKE 'updated_at'

SELECT * FROM `eav_attribute` WHERE `attribute_id` = 116