salix/services/db/install/changes/1-orderGetTotal.sql

USE `hedera`;
DROP procedure IF EXISTS `orderGetTotal`;

DELIMITER $$
USE `hedera`$$

CREATE DEFINER=`root`@`%` PROCEDURE `orderGetTotal`()
BEGIN
/**
* Calcula el total con IVA para un conjunto de orders.
*
* @table tmp.order(orderFk) Identificadores de las ordenes a calcular
* @return tmp.orderTotal Total para cada order
*/
CALL orderGetTax;

DROP TEMPORARY TABLE IF EXISTS tmp.orderTotal;
CREATE TEMPORARY TABLE tmp.orderTotal
(INDEX (orderFk))
ENGINE = MEMORY
SELECT o.orderFk, IFNULL(SUM(ot.taxableBase + ot.tax), 0.0) AS total
FROM tmp.order o
LEFT JOIN tmp.orderAmount ot ON o.orderFk = ot.orderFk
GROUP BY orderFk;

DROP TEMPORARY TABLE IF EXISTS tmp.orderTax;
END$$

DELIMITER ;