[SERVER-36667] Add ability to have a mixture of sharded and unsharded foreign namespaces in an aggregation Created: 14/Aug/18  Updated: 29/Oct/23  Resolved: 21/Aug/18

Status: Closed
Project: Core Server
Component/s: Aggregation Framework
Affects Version/s: None
Fix Version/s: 4.1.3

Type: Task Priority: Major - P3
Reporter: Nicholas Zolnierz Assignee: Nicholas Zolnierz
Resolution: Fixed Votes: 0
Labels: None
Remaining Estimate: Not Specified
Time Spent: Not Specified
Original Estimate: Not Specified

Backwards Compatibility: Fully Compatible
Sprint: Query 2018-08-27
Participants:

 Description   

Currently, a pipeline stage can indicate whether a foreign namespace is allowed to be sharded but it cannot say which foreign namespace can be sharded. For instance, a $lookup into an unsharded namespace followed by a $out into a sharded namespace is a valid pipeline, however mongos will reject it here



 Comments   
Comment by Githook User [ 21/Aug/18 ]

Author:

{'name': 'Nick Zolnierz', 'email': 'nicholas.zolnierz@mongodb.com', 'username': 'nzolnierzmdb'}

Message: SERVER-36667: Add ability to have a mixture of sharded and unsharded foreign namespaces in an aggregation
Branch: master
https://github.com/mongodb/mongo/commit/14c53602360e9c223e70f97c2b08760df194f996

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