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Type: Improvement
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Resolution: Duplicate
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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: Aggregation Framework
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None
For an example query that could use this (assuming the appropriate index is there), see https://groups.google.com/forum/#!msg/mongodb-user/V5nO8gkgzbk/iI9F_faNPFsJ .
- duplicates
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SERVER-4961 $group is taking 2x as long as collection.group()
- Closed
- is related to
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SERVER-4507 aggregation: optimize $group to take advantage of sorted sequences
- Backlog