[SERVER-64482] Make SBE $lookup aware of collation Created: 14/Mar/22  Updated: 29/Oct/23  Resolved: 01/Apr/22

Status: Closed
Project: Core Server
Component/s: None
Affects Version/s: None
Fix Version/s: 6.0.0-rc0

Type: Task Priority: Major - P3
Reporter: Irina Yatsenko (Inactive) Assignee: Irina Yatsenko (Inactive)
Resolution: Fixed Votes: 0
Labels: None
Remaining Estimate: Not Specified
Time Spent: Not Specified
Original Estimate: Not Specified

Issue Links:
Related
related to SERVER-65080 Support the SBE pushdown of $lookup w... Backlog
Backwards Compatibility: Fully Compatible
Sprint: QE 2022-04-04
Participants:

 Description   

When building the set of local/foreign key values $lookup should be aware of collation. Currently, it isn't.



 Comments   
Comment by Githook User [ 31/Mar/22 ]

Author:

{'name': 'Irina Yatsenko', 'email': 'irina.yatsenko@mongodb.com', 'username': 'IrinaYatsenko'}

Message: SERVER-64482 Support collation when lowering lookup into SBE
Branch: master
https://github.com/mongodb/mongo/commit/176f398bd3cf651f349660bb82285eaf46252650

Comment by Ethan Zhang (Inactive) [ 29/Mar/22 ]

In the standup meeting today, we discussed and decided that $lookup with an _internalCollation parameter will not be pushed down. This parameter was introduced in SERVER-53637 and it is not part of the stable API and is not documented.

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