Yii2加入活动记录

Question

$slider = Slider::find() 
    ->joinWith([
        'slides' => function (ActiveQuery $query) {
            $query->addOrderBy(sprintf('%s.position', Slide::tableName()));
        }
    ], false)
    ->one();
/* OK */
SELECT "sliders".* 
FROM "sliders" 
LEFT JOIN "slider_slides" 
ON "sliders"."id" = "slider_slides"."slider_id" 
ORDER BY "slider_slides"."position"

问题是，当我加入关系$slider->slides时，调试器会向我显示其他查询：

SELECT * FROM "slider_slides" WHERE "slider_id"=1

加入无用的

。