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Type:
New Feature
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Resolution: Unresolved
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Priority:
Major - P3
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None
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Affects Version/s: None
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Component/s: API
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Labels:None
In many cases, it would be useful to convert an object to an array. We should add an aggregation expression to do so. For example, it could be called $objectToArray, and do something like this:
> db.foo.insert({_id: 0, subDoc: {a: 1, b: 3, c: "example"}});
> db.foo.aggregate([{$project: {expanded: {$objectToArray: "$subDoc"}}}])
{_id: 0, expanded: [{k: "a", v: 1}, {k: "b", v: 3}, {k: "c", v: "example"}]}
Original Description
Currently, if a collection contains the following document:
{_id: 0, data: {a: 1, b: 2, c: 3}}
There is no way to unwind that one document into the following three documents:
{_id: 0, data: {a: 1}}
{_id: 0, data: {b: 2}}
{_id: 0, data: {c: 3}}
- depends on
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- Closed
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- is depended on by
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- Closed
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