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Type: Improvement
Resolution: Unresolved
Priority: Major - P3
Fix Version/s: 8.0.28, 8.3.7, 9.0.0-rc1
Affects Version/s: None
Component/s: None
Labels:
None

Assigned Teams:

Query Execution
Backport Requested:

v9.0, v8.3, v8.0
Sprint:
QE 2026-05-11, QE 2026-04-27, QE 2026-05-25, QE 2026-06-08, QE 2026-06-22, QE 2026-07-06, QE 2026-07-20, QE 2026-08-03
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

Some array expressions like $concatArrays can be combined with $range expression to generate huge arrays in memory.

related to

SERVER-129013 Limit memory usage of $concatArrays in Classic engine

Closed

SERVER-129014 Limit memory usage of $setUnion in Classic engine

Closed

SERVER-129015 Limit memory usage of $zip in Classic engine

Closed

SERVER-129017 Limit memory usage of ExpressionArray in Classic engine

Closed

SERVER-129018 Limit memory usage of ExpressionObject in Classic engine

Closed

Assignee:: Ivan Fefer
Reporter:: Ivan Fefer
Participants:: Ivan Fefer
Votes:: 0 Vote for this issue
Watchers:: 3 Start watching this issue

Created:: Apr 17 2026 09:55:27 AM UTC
Updated:: Jul 22 2026 07:22:15 PM UTC