0
毎日百貨店（男性、女性など）に保管する人数に数十億の文書がある
id_department：departmentの位置、area_type：部門の支店名（靴、ファッション、など）mongodb集合体の性能を向上させる
(_id:59e86325dc03580bdbf2347f
date:20170906
id_department:2640
goinside_type:2
area_type:1)
(_id:59e86325dc03580bdbf2347f
date:20170906
id_department:2642
goinside_type:3
area_type:2)
私は、クエリを書きたい人の数は、時間の範囲でarea_typeを訪れる返すことができ、ここでの問題はarea_typeが1000を超えることができ、すべてのarea_typeの条件は（異なる可能性がありますこの場合はarea_typeでグループを使用できません）。私のパイプラインは長くなり、パフォーマンスが低下します。
$pipeline = Array
(
[0] => Array
(
[$match] => Array
(
[id_station] => Array
(
[$in] => Array
(
[0] => 2640
[1] => 2642
[2] => 2644
)
)
[date] => Array
(
[$gte] => 20170802
[$lte] => 20170930
)
)
)
[1] => Array
(
[$group] => Array
(
[_id] => Array
(
[id_station] => $id_station
)
[total_entries - area1] => Array
(
[$sum] => Array
(
[$cond] => Array
(
[0] => Array
(
[$and] => Array
(
[0] => Array
(
[$eq] => Array
(
[0] => $area_type
[1] => 1
)
)
[2] => Array
(
[$gte] => Array
(
[0] => $date
[1] => 20170901
)
)
[3] => Array
(
[$lte] => Array
(
[0] => $date
[1] => 20170930
)
)
)
)
[1] => 1
[2] => 0
)
)
)
[total_entries - area1previous] => Array
(
[$sum] => Array
(
[$cond] => Array
(
[0] => Array
(
[$and] => Array
(
[0] => Array
(
[$eq] => Array
(
[0] => $area_type
[1] => 1
)
)
[2] => Array
(
[$gte] => Array
(
[0] => $date
[1] => 20170802
)
)
[3] => Array
(
[$lte] => Array
(
[0] => $date
[1] => 20170831
)
)
)
)
[1] => 1
[2] => 0
)
)
)
[total_entries - area2] => Array
(
[$sum] => Array
(
[$cond] => Array
(
[0] => Array
(
[$and] => Array
(
[0] => Array
(
[$eq] => Array
(
[0] => $area_type
[1] => 2
)
)
[2] => Array
(
[$gte] => Array
(
[0] => $date
[1] => 20170901
)
)
[3] => Array
(
[$lte] => Array
(
[0] => $date
[1] => 20170930
)
)
)
)
[1] => 1
[2] => 0
)
)
)
[total_entries - area2previous] => Array
(
[$sum] => Array
(
[$cond] => Array
(
[0] => Array
(
[$and] => Array
(
[0] => Array
(
[$eq] => Array
(
[0] => $area_type
[1] => 2
)
)
[2] => Array
(
[$gte] => Array
(
[0] => $date
[1] => 20170802
)
)
[3] => Array
(
[$lte] => Array
(
[0] => $date
[1] => 20170831
)
)
)
)
[1] => 1
[2] => 0
)
)
)
)
)
)
$cursor = $collection->aggregate($pipeline, ['allowDiskUse' => true]);
これを解決する方法はありますか？
あなたの 'id_department'はおそらく' id_station'と呼ばれるべきでしょうか？ – dnickless