The raw sql query is following:
SELECT EAOV.option_id, EAOV.value FROM eav_attribute EA LEFT JOIN eav_attribute_option EAO ON EAO.attribute_id = EA.attribute_id LEFT JOIN eav_attribute_option_value EAOV ON EAOV.option_id = EAO.option_id WHERE EA.attribute_code = 'manufacturer' AND EAOV.store_id = 0;