[SERVER-64227] Remove $sum/$avg merging logic which handles old input data format from a shard after branching 6.0 Created: 04/Mar/22  Updated: 29/Oct/23  Resolved: 04/May/22

Status: Closed
Project: Core Server
Component/s: None
Affects Version/s: None
Fix Version/s: 6.1.0-rc0

Type: Task Priority: Major - P3
Reporter: Yoon Soo Kim Assignee: Yoon Soo Kim
Resolution: Fixed Votes: 0
Labels: None
Remaining Estimate: Not Specified
Time Spent: Not Specified
Original Estimate: Not Specified

Issue Links:
Gantt Dependency
has to be done before SERVER-65465 SBE Group should not use DoubleDouble... Closed
has to be done after SERVER-62940 DocumentSourceGroup returns different... Closed
Backwards Compatibility: Fully Compatible
Sprint: QE 2022-05-02, QE 2022-05-16
Participants:

 Description   

In SERVER-62940, we fixed $sum accumulator bug in spilling case and sharding case under FCV 6.0 because it involved changing over-the-wire data format from a shard to the merging side though the bug is apparently an incorrect result bug.

When we branch for 6.1, we can remove the FCV gating and also serialization logic to compose a 'Object' data for $sum partial results.



 Comments   
Comment by Githook User [ 04/May/22 ]

Author:

{'name': 'Yoonsoo Kim', 'email': 'yoonsoo.kim@mongodb.com', 'username': 'yun-soo'}

Message: SERVER-64227 Remove $sum/$avg merging logic to handle the old over-the-wire format
Branch: master
https://github.com/mongodb/mongo/commit/f29b6bf42aca0ed228ce6a36c1c502184b1f6e55

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