MySQL script triggers Error #1241 - mysql

Question

I have the script below, which is supposed to get a price for an array of ID's that has been provided.
But it needs to get 1 price per ID, and the tricky part is, that I want to have the ability to have scheduled price updates.
This mean that it needs to take the price that is <= UTC_TIMESTAMP smaller or equal to the current time.
SELECT
`product_pricing`.`wo_id`,
`product_pricing`.`currency` AS price2_currency,
`product_pricing`.`price` AS price2,
`product_pricing`.`formula_id`,
`product_pricing`.`vat_calculated` AS price2_vat_calculated,
`product_pricing`.`vat_id`,
`product_pricing`.`timestamp_valid`,
`product_price_formulas`.`formula_id`,
`product_price_formulas`.`formula` price2_formula
FROM
`product_pricing`
LEFT JOIN `product_price_formulas`
ON `product_pricing`.`formula_id` = `product_price_formulas`.`formula_id`
WHERE
`product_pricing`.`wo_id` IN (
SELECT
`product_pricing`.`wo_id`,
`product_pricing`.`timestamp_valid`
FROM `product_pricing`
WHERE
`product_pricing`.`wo_id`
IN ('015724', '028791', '015712', '015715', '015717', '039750', '028791')
AND `product_pricing`.`timestamp_valid` <= UTC_TIMESTAMP
ORDER BY `product_pricing`.`timestamp_valid` DESC
)
Is this possible?
Sample data: Current output
——————————————————————————————————————————————————————————————————
| wo_id | price2 | timestamp_valid
——————————————————————————————————————————————————————————————————
| 028791 | 8000 | 2018-03-20 19:55:41
| 028791 | 6000 | 2018-04-01 19:55:41
| 028791 | 4000 | 2018-04-20 19:55:41
| 015724 | 3000 | 2018-04-18 19:55:41
| 015724 | 1500 | 2018-03-01 19:55:41
....
Wanted output:
——————————————————————————————————————————————————————————————————
| wo_id | price2 | timestamp_valid
——————————————————————————————————————————————————————————————————
| 028791 | 6000 | 2018-04-01 19:55:41
| 015724 | 1500 | 2018-03-01 19:55:41

Answer 1

I guess your issue is on the IN clause.
You select two field in IN clause.
EDIT
You need to self join a subquery by wo_id and Max timestamp_valid.
SELECT
`product_pricing`.`wo_id`,
`product_pricing`.`currency` AS price2_currency,
`product_pricing`.`price` AS price2,
`product_pricing`.`formula_id`,
`product_pricing`.`vat_calculated` AS price2_vat_calculated,
`product_pricing`.`vat_id`,
`product_pricing`.`timestamp_valid`,
`product_price_formulas`.`formula_id`,
`product_price_formulas`.`formula` price2_formula
FROM
`product_pricing`
LEFT JOIN `product_price_formulas` ON `product_pricing`.`formula_id` = `product_price_formulas`.`formula_id`
INNER JOIN
(
SELECT
`product_pricing`.`wo_id`,
MAX(`timestamp_valid`) AS MaxDate
FROM `product_pricing`
WHERE
`product_pricing`.`timestamp_valid` <= UTC_TIMESTAMP
GROUP BY
`product_pricing`.`wo_id`
)as temp ON temp.wo_id = `product_pricing`.`wo_id` AND temp.MaxDate = `product_pricing`.`timestamp_valid`
WHERE
`product_pricing`.`wo_id` IN ('015724', '028791', '015712', '015715', '015717', '039750', '028791')

Answer 2

I think you want something like this:
SELECT pp.*, ppf.formula_id, ppf.formula as price2_formula
FROM product_pricing pp LEFT JOIN
product_price_formulas ppf
ON pp.formula_id = ppf.formula_id
WHERE (pp.wo_id, pp.timestamp_valid) IN
(SELECT pp2.wo_id, MAX(pp2.timestamp_valid)
FROM product_pricing pp2
WHERE pp2.wo_id IN ('015724', '028791', '015712', '015715', '015717', '039750', '028791') AND
pp2.timestamp_valid <= UTC_TIMESTAMP
);
The ORDER BY makes no sense in the subquery, so this is my best guess as to what you want.
I left this with your structure of using IN, but I would use a correlated subquery and =:
WHERE pp.timestamp_valid = (SELECT MAX(pp2.timestamp_valid)
FROM product_pricing pp2
WHERE pp2.wo_id = pp.wo_id AND
pp2.timestamp_valid <= UTC_TIMESTAMP
) AND
pp2.wo_id IN ('015724', '028791', '015712', '015715', '015717', '039750', '028791');

Answer 3

You could JOIN product_pricing with a derived result set of the most recent valid_timestamp records.
If we ignore the product_pricing_formula table for now (since you didn't include it in your specimen data and result) that would give.
SELECT
p.`wo_id`,
p.`price` AS price2,
p.`timestamp_valid`
FROM `product_pricing` p
JOIN (SELECT wo_id, MAX(timestamp_valid) AS max_valid_ts
FROM `product_pricing`
WHERE `timestamp_valid` <= UTC_TIMESTAMP
GROUP BY wo_id) d
ON (d.wo_id = p.wo_id AND d.max_valid_ts = p.timestamp_valid)
WHERE p.`wo_id` IN (015724, 028791);
Try it on Sqlfiddle