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Type: New Feature
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Resolution: Done
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Priority: Major - P3
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Affects Version/s: None
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Component/s: Aggregation Framework
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None
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Minor Change
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Quint Iteration 4, Quint Iteration 5
At present, there's no way to extract a specific element from an array-valued field. An operator should be added that could be used in a projection, e.g.:
db.runCommand({aggregate:"c", pipeline:[
{ $project : {
foo :
}}
]});
The effect of this would be put add the computed field (virtual field) foo to the projection, and give it the value of arrayField[5].
- is depended on by
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JAVA-2001 Projection builder support for array indexing operator
- Closed
- is duplicated by
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SERVER-6075 Accessing array elements by position fails in $project
- Closed
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SERVER-16462 Can't access specific array elements in $group
- Closed
- is related to
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SERVER-6074 Allow $slice operator in $project
- Closed
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DRIVERS-234 Aggregation Builder Support for 3.2
- Closed
- related to
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SERVER-5299 array element selection syntax returns wrong result
- Closed
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CSHARP-1400 Support the new array indexing operator
- Closed