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Type:
Task
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Resolution: Done
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Priority:
Major - P3
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None
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Affects Version/s: 1.0.3
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Component/s: BSON
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Labels:None
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Environment:macOS Mojave 10.14.2
aggQuery := []bson.M{{
"$group": bson.M{
"_id": "$created_at",
"play_sum": bson.M{
"$sum": "$play_num",
},
"comment_sum": bson.M{
"$sum": "$comment_num",
},
},
"$match": []bson.M{{
"vid": bson.M{
"$in": bson.A{
"...",
"....",
},
},
}},
}}
cursor, err := myCollection.Aggregate(ctx, aggQuery)
i try it not work, error message:
2019/08/11 18:56:52 (Location40323) A pipeline stage specification object must contain exactly one field.
but i replace `aggQuery`:
aggQuery := []bson.M{{
"$group": bson.M{
"_id": "$created_at",
"play_sum": bson.M{
"$sum": "$play_num",
},
"comment_sum": bson.M{
"$sum": "$comment_num",
},
},
}}
is working.