MySQL server has gone away SQL query : select categoryID, name, brief_description,  customers_rating, Price, in_stock,  customer_votes, list_price,  pt.productID, default_picture, sort_order, items_sold, enabled,  product_code, description, shipping_freight, po.option_value from SS_products AS pt LEFT JOIN SS_product_options_values AS po ON pt.productID=po.productID and po.optionID=36 where  enabled=1 AND categoryID=9343 OR  enabled=1 AND categoryID=9560 OR  enabled=1 AND categoryID=8936 OR  enabled=1 AND categoryID=9636 OR  enabled=1 AND categoryID=9561 OR  enabled=1 AND categoryID=9562 OR  enabled=1 AND categoryID=9558 OR  enabled=1 AND categoryID=8937 OR  enabled=1 AND categoryID=8938 OR  enabled=1 AND categoryID=9620 OR  enabled=1 AND categoryID=8939 OR  enabled=1 AND categoryID=8940 OR  enabled=1 AND categoryID=8941 OR  enabled=1 AND categoryID=8942 OR  enabled=1 AND categoryID=8943 OR  enabled=1 AND categoryID=8944 OR  enabled=1 AND categoryID=9618 OR  enabled=1 AND categoryID=8945 OR  enabled=1 AND categoryID=8946 OR  enabled=1 AND categoryID=8947 OR  enabled=1 AND categoryID=8935 order by  in_stock DESC, Price, name