Minor - P4 Description
It's something like as $elemMatch projection works but instead returning the single value it could be return all matches like the follows:
{
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_id: ObjectId(),
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zipcode: 63109,
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dependents: [
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{ name: "john", school: 102, age: 10 },
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{ name: "jess", school: 102, age: 11 },
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{ name: "jeff", school: 108, age: 15 }
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]
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}
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var projection = { _id: 0, dependents: { $filter: { school: 102 }}};
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db.students.find( { zipcode: 63109 }, projection);
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{
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dependents: [
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{ name: "john", school: 102, age: 10 },
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{ name: "jess", school: 102, age: 11 }
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]
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}
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Attachments
Issue Links
- duplicates
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SERVER-6612 Support projecting multiple array values in a projection like the $elemMatch projection specifier
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- Closed
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