yii2 如何查询统计

$query=Information::find()->groupBy('insertion_time')->alias('a')->select('count(*) as total,a.*')->all();

$sql = "SELECT count(*)as total,insertion_time FROM `tre_information_hints` GROUP BY insertion_time"; $query = Yii::$app->getDb()->createCommand($sql)->queryAll(); ------------------------------------------------------------------------------------------- select from_unixtime(created_at, '%Y-%m-%d') AS time,count(DISTINCT user_id) as mun from tre_mineral_log GROUP BY time ORDER BY time desc