salix/db/routines/vn/functions/routeProposal_.sql

31 lines
772 B
SQL

DELIMITER $$
CREATE OR REPLACE DEFINER=`vn`@`localhost` FUNCTION `vn`.`routeProposal_`(vTicketFk INT)
RETURNS int(11)
NOT DETERMINISTIC
READS SQL DATA
BEGIN
DECLARE vRouteFk INT;
DECLARE vAddressFk INT;
DECLARE vShipped DATETIME;
SELECT addressFk, date(shipped) INTO vAddressFk, vShipped
FROM vn.ticket
WHERE id = vTicketFk;
SELECT routeFk INTO vRouteFk
FROM
(SELECT t.routeFk, sum(af.friendship) friendshipSum
FROM vn.ticket t
JOIN cache.addressFriendship af ON af.addressFk2 = t.addressFk AND af.addressFk1 = vAddressFk
WHERE t.shipped BETWEEN vShipped and MIDNIGHT(vShipped)
AND t.routeFk
GROUP BY routeFk
ORDER BY friendshipSum DESC
) sub
LIMIT 1;
RETURN vRouteFk;
END$$
DELIMITER ;