[SERVER-84175] PlanExecutor::getNext() is returning unowned BSON objects Created: 14/Dec/23  Updated: 09/Jan/24

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

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

Issue Links:
Related
Assigned Teams:
Query Execution
Participants:
Linked BF Score: 160

 Description   

The changes introduced by SERVER-82970 exposed the fact that the PlanExecutor::getNext() (or at least, the implementation defined by PlanExecutorImpl) is returning unowned BSONObject to its callers, which may experience segmentation fault error in case the executor object gets destroyed before accessing such objects.

This ticket proposes to either implement a more robust behaviour - or to make the limitation explicit through the documentation of the interface.


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