不指定字段的时候会报错

'username|用户名' => [
                    'rule'=>'required|alpha_num|unique:hyperf_admin.member',
                    'props' => [
                        'size' => 'small',
                        'maxlength' => 20,
                    ],
                ],


 Unknown column '35_to_ignore' in 'where clause' 35 是 正在编辑的id