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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: Builders
Downstream Change Summary
Please see the scope doc and let Query know if any questions
Description of Linked Ticket
Epic Summary
Summary
Add a $top accumulator that returns an array of expressions evaluated for top n documents according to a given sort order
Motivation
One common analytical task is to find the top or bottom n elements in each cohort. For example, we are interested in the 10 best salespeople for each region based on their individual sales, or in the 5 slowest queries issued by a given tenant on each day. This is a generalization of finding the best or worst element.
Cast of Characters
- Product Owner: Katya Kamenieva
- Project Lead: TBD
- Program Manager: Craig Homa
- Drivers Contact: TBD
Documentation
Scope Document
Technical Design Document
Product Description
- is cloned by
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CSHARP-3529 Support $topN and similar accumulators in $group
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- Closed
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- links to