burubur
/ mongoSubDocumentQuery
Created
October 27, 2017 07:14
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| db.collection.find( | |
| // where clause | |
| { | |
| items: { $elemMatch : { "code": 3}} | |
| }, | |
| // projection fields | |
| { | |
| _id: "_id", | |
| order_id: "order_id" | |
| // return matched status |
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