[SERVER-41174] Ensure the same $$NOW and $$CLUSTER_TIME values are used across all batches of a bulk update Created: 16/May/19  Updated: 06/Dec/22

Status: Backlog
Project: Core Server
Component/s: Querying
Affects Version/s: 4.1 Desired
Fix Version/s: None

Type: Improvement Priority: Major - P3
Reporter: Anton Korshunov Assignee: Backlog - Query Optimization
Resolution: Unresolved Votes: 0
Labels: None
Remaining Estimate: Not Specified
Time Spent: Not Specified
Original Estimate: Not Specified

Assigned Teams:
Query Optimization
Participants:

 Description   

A bulk update may execute multiple update commands if it can't all fit in a single update command. In this case, $$NOW and $$CLUSTER_TIME will be the same within each update command, but will be re-evaluated across multiple update commands. It could be desirable to preserve the same $$NOW and $$CLUSTER_TIME for the entire bulk update operation, as, from a user perspective, this is a single operation.



 Comments   
Comment by Craig Homa [ 20/May/19 ]

Note from triage: Not sure if we need to implement anything for this, but we would at least want to ensure it is documented correctly.

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