[SERVER-83288] Index scans use complex key validation code for point bounds Created: 15/Nov/23  Updated: 30/Jan/24

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

Type: Task Priority: Major - P3
Reporter: Ian Boros Assignee: Zixuan Zhuang
Resolution: Unresolved Votes: 0
Labels: query-perf-q4
Remaining Estimate: Not Specified
Time Spent: Not Specified
Original Estimate: Not Specified

Assigned Teams:
Query Execution
Participants:

 Description   

For point bounds, index scans convert KeyStrings to BSON and still call into the expensive checkKey() codepath. We should avoid this extra work in the easy (and common) case where we have point bounds.

In fact, we might be able to avoid this conversion in the general case too, if we wrote a key checker based on KeyString. We should investigate the effort of doing that.


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