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Type: Task
Resolution: Fixed
Priority: Blocker - P1
Fix Version/s: 8.3.0-rc0
Affects Version/s: None
Component/s: None
Labels:
None

Assigned Teams:

Query Optimization
Backwards Compatibility:
Fully Compatible
Linked BF Score:
200
CAR Domain/s:
None

Aha! Reference:
None
Tracking Level:
None
Risk Status:
None
Exec Notes:
None
Goal Name(s):
None
Goal Link:
None

Make CBR related flags available for IFR (Incremental Feature Rollout), for Atlas.
Also change the default CBR fallback mode to kCBRForNoMultiplanningResults.

is blocked by

SERVER-117093 [CBR] Tassert when CBR chooses plan that runs in SBE

Closed

SERVER-118468 Explains for fast count queries crashes cbr for no mp results

Closed

SERVER-118774 Getmore commands fail to explain in automaticCE

Closed

is depended on by

SERVER-111677 server hits invariant on restarting with CBR enabled

Needs Scheduling

SERVER-118434 Make CBR IFR feature flag "rollout"

Closed

related to

SERVER-118494 Disable failing $mergeObjects test in query-correctness-tests-1

Closed

SERVER-115496 Enumerate solutions at rank planner level and plug them to plan ranking strategies

Needs Scheduling

SERVER-115226 [CBR] Implement single solution fast path and count fast path for CBR

Backlog

(3 related to)

Assignee:: Kartal Kaan Bozdogan
Reporter:: James Harrison
Participants:: Githook User, James Harrison, Kartal Kaan Bozdogan
Votes:: 0 Vote for this issue
Watchers:: 5 Start watching this issue

Created:: Jan 15 2026 10:00:04 AM UTC
Updated:: Feb 06 2026 12:44:22 PM UTC
Resolved:: Feb 05 2026 09:58:36 AM UTC

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