The equivalent mongo query follows: db.collection1.aggregate([ { "$match": { "name": { "$in": arrayList }, "cond1": "false" } }, { "$group": ... ... <看更多>

I am trying to send following query to MongoDB using aggregate function in Mongo PHP Library: db.customers.aggregate( {$match: {Country: ... ... <看更多>

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The aggregation should utilize the index. The docs also pretty clearly match your expected behavior:. ... <看更多>

Where. query - is a query object, defining the conditions the documents need to apply; fields - indicates which fields should be included in the response ... ... <看更多>