DELIMITER $$
CREATE OR REPLACE DEFINER=`root`@`localhost` FUNCTION vn.sectorCollection_hasSalesReserved(vSelf INT)  RETURNS tinyint(1)
DETERMINISTIC
BEGIN

/**
*	Devuelve si sectorCollection tiene reservas 
*  	@param vSelf Id de sectorCollection
*
*	returns BOOLEAN
*/

	DECLARE vHasSalesReserved BOOLEAN;


	SELECT DISTINCT COUNT(*)>0 INTO vHasSalesReserved 
		FROM vn.sectorCollection sc
			JOIN vn.sectorCollectionSaleGroup scsg ON sc.id = scsg.sectorCollectionFk 
			JOIN vn.saleGroup sg ON sg.id = scsg.saleGroupFk 
			JOIN vn.saleGroupDetail sgd ON sgd.saleGroupFk  = sg.id 
			JOIN vn.sale s ON s.id = sgd.saleFk  
			JOIN vn.itemShelvingSale iss ON iss.saleFk = s.id
			JOIN vn.saleTracking st ON st.saleFk = s.id
		WHERE sc.id = vSelf;

	RETURN vHasSalesReserved;

END$$
DELIMITER ;