我有一个四阶段聚合查询，形式为匹配 - >组 - >项目 - >排序 . 聚合工作正常并生成如下所示的数组 .
{ count: 48, ISP: 'LEASEWEB USA', percentRisky: 100 },
{ count: 51, ISP: 'ARETI INTERNET LTD', percentRisky: 100 },
{ count: 82, ISP: 'TINET SPA', percentRisky: 100 },
{ count: 109, ISP: 'GIGLINX', percentRisky: 100 },
{ count: 142, ISP: 'EGIHOSTING', percentRisky: 100 },
{ count: 857, ISP: 'VERSAWEB, LLC', percentRisky: 100 }
下面是我的聚合查询 . 有没有办法让我只显示'count'字段大于500的结果？我试过加入项目阶段没有运气 .
{ $match : { //match to documents which are from all clients, from last three days, and scored
org : {"$in" : clientArray },
frd : {$gt : new Date(JSON.stringify(util.lastXDates( 3 )))},
sl : true
}},
{ $group : { //group by isp, get total count, and get count of risky
_id : "$gog",
count : { $sum : 1 },
countRisky : { $sum : { $cond : { if : { $gte : [ "$scr", 65 ] } ,
then : 1,
else : 0
}} }
}},
{ $project : { //rename _id to isp, only show percent risky, and the count
_id : 0,
ISP : "$_id",
percentRisky : { $multiply : [{ $divide : ["$countRisky", "$count"] }, 100] },
count : 1
}},
{ $sort : { //sort by percent risky
percentRisky : 1,
count : 1
1 回答
您可以在管道中包含多个
$match阶段，因此在末尾添加第二个$match：