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  1. Drivers
  2. DRIVERS-1623

Exact top-n accumulator

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    • Icon: Epic Epic
    • Resolution: Won't Do
    • Icon: Major - P3 Major - P3
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      Here is the list of accumulators that this project implemented:

      • $firstN
      • $lastN
      • $minN
      • $maxN
      • $top
      • $topN
      • $bottom
      • $bottomN

      For specific on each accumulator, please refer to the scope doc.

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      Here is the list of accumulators that this project implemented: $firstN $lastN $minN $maxN $top $topN $bottom $bottomN For specific on each accumulator, please refer to the scope doc.

    Description

      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

      Attachments

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            backlog-server-pm Backlog - Core Eng Program Management Team
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            Dates

              Created:
              Updated:
              Resolved: