[DOCS-10353] Docs for SERVER-29073: Allow variable definition within $lookup Created: 05/Jun/17  Updated: 29/Oct/23  Resolved: 20/Sep/17

Status: Closed
Project: Documentation
Component/s: None
Affects Version/s: None
Fix Version/s: 3.5.9

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

Issue Links:
Documented
documents SERVER-29073 Allow variable definition within $lookup Closed
Related
related to DOCS-10298 Docs for SERVER-29072: Add support fo... Closed
Participants:
Days since reply: 6 years, 21 weeks ago
Epic Link: DOCS: 3.6 Server

 Description   

Documentation Request Summary:

This ticket introduces the "let" option to $lookup. It allows for declaration of variables with aggregation Expression as values. The documentation for this should be written alongside other $lookup enhancements being made under https://jira.mongodb.org/browse/PM-738

Engineering Ticket Description:

Make these variables available to aggregation expressions in sub-pipelines



 Comments   
Comment by Githook User [ 20/Sep/17 ]

Author:

{'email': 'kay.kim@10gen.com', 'name': 'kay', 'username': 'kay-kim'}

Message: DOCS-10353 DOCS-10298: 3.6 $lookup variables and pipelines
Branch: master
https://github.com/mongodb/docs/commit/b1bb48e3e0a76dc543c6bc93f91dd809a2211a5b

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