I have the following query:
SELECT product_description.name, product.quantity,product.price,product_option_value_description.name,product_option_value.quanti
Use an alias like so:
product_option_value_description.name AS `Option`
If you want to change the column's name, not only for this query but in general use ALTER TABLE
ALTER TABLE product_option_value_description CHANGE name newname DATATYPE;