Hi,
I don't understand your SQL request.
You want to retrieve the product name but I don't understand for which product.
In your request, you made a search for a specific product_name, so you will retrieve the value "value" if you have a product with this name.
Regards,
Jerome - Obsidev.com
HikaMarket & HikaSerial developer / HikaShop core dev team.
Also helping the HikaShop support team when having some time or couldn't sleep.
By the way, do not send me private message, use the "contact us" form instead.