The join is irrelevant. Your join returns a resultset and you can just
pretent that resultset is a single table:
SELECT field1, field2, field3
FROM (very complicated join) AS simpletable
GROUP BY ...
WITH ROLLUP
Just copy-pate your join into this and fix the fieldnames.
aaahhh....
okay, i'm close:
mysql> select ticket_details.quantity,
product.name,
product.price,
(product.price * ticket_details.quantity) as subtotal
from product,
ticket_details
where ticket_details.ticket =
'9f2d7b86-213d-1028-88b7-09e76b61a517' AND
ticket_details.product = product.id
group by subtotal
with rollup
;
+----------+--------+-------+----------+
| quantity | name | price | subtotal |
+----------+--------+-------+----------+
| 1 | orange | 0.97 | 0.97 |
| 3 | pear | 1.09 | 3.27 |
| 3 | pear | 1.09 | NULL |
+----------+--------+-------+----------+
the NULL is in the wrong column. where is my mistake?
thanks, jochem.
- philip
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