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Type: Task
Resolution: Fixed
Priority: Major - P3
Fix Version/s: 5.1.0-rc0
Affects Version/s: None
Component/s: Aggregation Framework, Querying
Labels:
- open_todo_in_code

Backwards Compatibility:
Fully Compatible
Sprint:
Query Optimization 2021-05-31, Query Optimization 2021-06-14, Query Optimization 2021-06-28
Confidence Status:
None
Work Order:
3

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

Add the ability for a variable defined in a let in one $lookup stage to be referenced within a subpipeline of a nested $lookup, when all collections involved are sharded.

This should include serializing a constant-variable ExpressionFieldPath to be the constant, and to serialize a nested pipeline via serialize() rather than returning the unparsed version.

depends on

SERVER-32308 Add the ability for a $lookup stage to execute on mongos against a sharded foreign collection

Closed

SERVER-38544 Serialize optimized $match stage instead of original BSON

Closed

is depended on by

SERVER-38830 Support sharded $lookup 'let' variable serialization for shard to shard routing

Closed

SERVER-57372 Complete TODO listed in SERVER-38830

Closed

is duplicated by

SERVER-38830 Support sharded $lookup 'let' variable serialization for shard to shard routing

Closed

Assignee:: Alya Berciu
Reporter:: David Storch
Participants:: Alya Berciu, David Storch, Githook User, Vivian Ge
Votes:: 0 Vote for this issue
Watchers:: 6 Start watching this issue

Created:: Dec 13 2017 07:36:36 PM UTC
Updated:: Oct 30 2023 11:09:56 PM UTC
Resolved:: Jun 15 2021 12:32:14 PM UTC
Confidence Status Last Update:: 31/May/21 1:46 PM

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