MySQL server error report:Array ( [0] => Array ( [message] => MySQL Query Error ) [1] => Array ( [sql] => SELECT goods_id FROM `tj_xzlzf`.`ecs_goods_son`WHERE 1 AND shop_price between 6 and 8 group by goods_id ) [2] => Array ( [error] => Unknown column 'shop_price' in 'where clause' ) [3] => Array ( [errno] => 1054 ) )