[DRIVERS-1613] Support exact count distinct stage and accumulator Created: 11/Mar/21  Updated: 22/Sep/21  Resolved: 15/Mar/21

Status: Closed
Project: Drivers
Component/s: None
Fix Version/s: None

Type: Epic Priority: Major - P3
Reporter: Backlog - Core Eng Program Management Team Assignee: Unassigned
Resolution: Won't Do Votes: 0
Labels: None
Remaining Estimate: Not Specified
Time Spent: Not Specified
Original Estimate: Not Specified

Issue Links:
Depends
Issue split
split to CSHARP-3223 Exact count distinct stage and accumu... Blocked
split to JAVA-3862 Exact count distinct stage and accumu... Blocked
Driver Compliance:
Key Status/Resolution FixVersion
CSHARP-3223 Blocked
JAVA-3862 Blocked

 Description   
Downstream Change Summary

Specific downstream impact TBD.

Description of Linked Ticket

Epic Summary

Summary

Add a concise way to compute the number of distinct values.

Motivation

Count distinct is one of the most common statistics used in analytics. While it is possible to express it in MQL, it is much less concise than in SQL, especially when multiple count distinct values need to be computed over the same input. Moreover, users are confused about what algorithm is recommended.

Cast of Characters

  • Product Owner: Katya Kamenieva
  • Project Lead: Pawel Terlecki
  • Program Manager: Craig Homa
  • Drivers Contact:

Documentation

Scope Document
Technical Design Document
Product Description



 Comments   
Comment by Alexander Golin (Inactive) [ 15/Mar/21 ]

Triage: Closing out, only needed for Java and C# so we will not be tracking with a DRIVERS ticket.

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