[SERVER-67018] Expose nodeCEMap to explain Created: 03/Jun/22  Updated: 29/Oct/23  Resolved: 18/Oct/22

Status: Closed
Project: Core Server
Component/s: None
Affects Version/s: None
Fix Version/s: 6.2.0-rc0

Type: New Feature Priority: Major - P3
Reporter: Svilen Mihaylov (Inactive) Assignee: Matt Boros
Resolution: Fixed Votes: 0
Labels: None
Remaining Estimate: Not Specified
Time Spent: Not Specified
Original Estimate: Not Specified

Backwards Compatibility: Fully Compatible
Sprint: QO 2022-09-05, QO 2022-09-19, QO 2022-10-03, QE 2022-10-17, QO 2022-10-31
Participants:

 Description   

Currently the costing framework when asked to cost a subtree of nodes (as opposed to just a single node), relies on the nodeCEMap structure which lists the individual cardinality estimates of the nodes, as the entire subtree is in the same group (not shredded). The goal of this task is (optionally) save the nodeCEMap on the best result of the memo and add ability to explain it.



 Comments   
Comment by Githook User [ 18/Oct/22 ]

Author:

{'name': 'Matt Boros', 'email': 'matt.boros@mongodb.com', 'username': 'mattBoros'}

Message: SERVER-67018 Expose nodeCEMap to explain
Branch: master
https://github.com/mongodb/mongo/commit/8981e5b8f9be7c719d8264dede6694cde0258a5d

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