sql select multiple rows in subselect - mysql

Question

First things first, I know this is incorrect currently. I know this because it doesn't work. So with that said, any assistance in getting me closer to my desired result is appreciated.
I have a query:
$query = "SELECT cat.*,
prod.title AS product,
cat1.title AS category,
(SELECT cat2.*
FROM ic_store_catalog AS cat2
WHERE cat2.parentid = cat.parentid) AS children
FROM ic_store_catalog AS cat
LEFT JOIN ic_products AS prod
ON cat.productid = prod.productid
LEFT JOIN ic_product_categories AS cat1
ON cat.categoryid = cat1.categoryid
WHERE `storeid` = $storeid
AND `column` = $column
AND `parentid` = 0
ORDER BY `the_order` ASC";
This errors out giving me: Operand should contain 1 column(s) as the problem. This exists in the sub-select guaranteed.
Now what I need to achieve when I use print_r in PHP is an Array similar in structure to this:
[0] => Array
(
[catalogID] => 165
[storeID] => 0
[categoryID] => 7
[parentID] => 0
[productID] => 4
[title] =>
[column] => 1
[the_order] => 1
[cat_order] => 1
[category] => Cookies & Brownies
[children] => Array
(
[0] => Array (
[catalogID] => 166
[storeID] => 0
[categoryID] => 8
[parentID] => 7
[productID] => 5
[the_order] => 1
[cat_order] => 1
[category] => Brownies
)
)
)
Any help in getting me closer to this result is appreciated.

Answer 1

(SELECT cat2.*
FROM ic_store_catalog AS cat2
WHERE cat2.parentid = cat.parentid)
You should replace cat2.* by only one column that will represent children.