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Type: Bug
Resolution: Fixed
Priority: Major - P3
Fix Version/s: 3.6.12, 4.0.7, 4.1.8
Affects Version/s: 3.6.0, 4.0.0
Component/s: Aggregation Framework
Labels:
None

Backwards Compatibility:
Fully Compatible
Operating System:
ALL
Backport Requested:

v4.0, v3.6
Sprint:
Query 2019-02-11
Confidence Status:
None
Work Order:
3

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

It looks like $lookup's implementation of addInvolvedCollections is incorrect. It neglects to include any namespaces that are referenced in a subpipline, should one exist.

It looks like this method is only used to check that all involved views are using the same collation, so the impact of this bad implementation would be a failure to detect mixed collations within a $lookup subpipeline.

is depended on by

SERVER-38360 Disallow pipelines which read from the same namespace that they write to

Closed

Assignee:: Charlie Swanson
Reporter:: Charlie Swanson
Participants:: Charlie Swanson, Githook User
Votes:: 0 Vote for this issue
Watchers:: 4 Start watching this issue

Created:: Feb 06 2019 05:30:39 PM UTC
Updated:: Oct 29 2023 10:24:24 PM UTC
Resolved:: Feb 07 2019 08:22:57 PM UTC
Confidence Status Last Update:: 07/Feb/19 8:18 PM