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Type: Task
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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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Labels:None
Description
https://docs.mongodb.com/manual/core/aggregation-pipeline-optimization/#projection-optimization
This page needs to reflect the optimization made in SERVER-9507 for $sort+$group+$first and $sort+$group+$count (these will now use the index effectively (DISTINCT scan) as opposed to a full index scan