MySQL server error report:Array
(
    [0] => Array
        (
            [message] => MySQL Query Error
        )

    [1] => Array
        (
            [sql] => SELECT b.brand_id, b.brand_name, b.brand_logo, COUNT(*) AS goods_num FROM `OK_ELEC`.`ok_brand`AS b, `OK_ELEC`.`ok_goods_search` AS g LEFT JOIN `OK_ELEC`.`ok_goods_cat` AS gc ON g.goods_id = gc.goods_id WHERE g.brand_id = b.brand_id AND (g.cat_id  IN ('246')  OR gc.cat_id  IN ('246') ) AND b.is_show = 1  AND g.is_on_sale = 1 AND g.is_alone_sale = 1 AND g.is_delete = 0 GROUP BY b.brand_id HAVING goods_num > 0 ORDER BY b.sort_order, b.brand_id ASC
        )

    [2] => Array
        (
            [error] => MySQL server has gone away
        )

    [3] => Array
        (
            [errno] => 2006
        )

)