[SERVER-53741] Implement infrastructure to handle non-removable position-based windows Created: 13/Jan/21  Updated: 29/Oct/23  Resolved: 10/Feb/21

Status: Closed
Project: Core Server
Component/s: None
Affects Version/s: None
Fix Version/s: 4.9.0

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

Backwards Compatibility: Fully Compatible
Sprint: Query 2021-01-25, Query Optimization 2021-02-22
Participants:

 Description   

The current design proposal is to build a WindowManager class/interface that manages the evaluated expressions in a window, the window function accumulation state, and exposes a method to reset state across partitions.



 Comments   
Comment by Githook User [ 10/Feb/21 ]

Author:

{'name': 'Nick Zolnierz', 'email': 'nicholas.zolnierz@mongodb.com', 'username': 'nzolnierzmdb'}

Message: SERVER-53741 Add WindowFunctionExec for accumulator-only windows
Branch: master
https://github.com/mongodb/mongo/commit/ac1fc90a2ca977f223eadabb88115ce2433885aa

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