[SERVER-83970] Extend HashLookupStage to lookup from block values Created: 07/Dec/23  Updated: 08/Dec/23

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

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

Issue Links:
Depends
is depended on by SERVER-83975 Limited support for $lookup on block ... Backlog
Assigned Teams:
Query Execution
Participants:

 Description   

HashLookupStage::getNext performs a probe into the hash table using the current value as key, treating arrays in a special way. The getNext() code should be changed to call this code as the callback of a map() call if the current value is a block value. This will allow the stage to consume and produce block values


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