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Type:
New Feature
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Resolution: Unresolved
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Priority:
Minor - P4
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None
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Affects Version/s: None
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Component/s: Aggregation Framework
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Query Optimization
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None
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3
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None
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None
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None
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{ $lookup: {
from: <collection to join>,
localField: <field from the input documents>,
excludeLocalField: <boolean>
foreignField: <field from the documents of the "from" collection>,
as: <output array field>
} }
If excludeLocalField = true then localField is removed from output
IMHO: excludeLocalField must be default to true (excludedd by default)
- is duplicated by
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SERVER-18966 Allow exclusion in $project stage of aggregation pipeline
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- Closed
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