[SERVER-45526] Support union with sharded collections Created: 13/Jan/20  Updated: 29/Oct/23  Resolved: 03/Feb/20

Status: Closed
Project: Core Server
Component/s: None
Affects Version/s: None
Fix Version/s: 4.3.4

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

Issue Links:
Depends
depends on SERVER-45399 Add basic union aggregation stage for... Closed
depends on SERVER-45528 Refactor sharded aggregation helpers ... Closed
depends on SERVER-85112 PoC: Sharded union Closed
is depended on by SERVER-46087 Propagate allowDiskUse to shards for ... Closed
is depended on by SERVER-45452 [no sharding] Support and test readin... Closed
is depended on by SERVER-45542 Support and test $unionWith aggregati... Backlog
is depended on by SERVER-45535 Support explain for $unionWith aggreg... Closed
is depended on by SERVER-45537 Test currentOp for aggregation pipeli... Closed
is depended on by SERVER-45538 Implement and test shard version retr... Closed
is depended on by SERVER-45540 Gate $unionWith behind FCV check and ... Closed
is depended on by SERVER-45541 Test killing an aggregation operation... Closed
is depended on by SERVER-45555 Test that the 'comment' field is prop... Closed
is depended on by SERVER-45562 Test that a pipeline containing a $un... Closed
is depended on by SERVER-45620 Have $union introspect the sub-pipeli... Closed
is depended on by SERVER-45675 Test that $unionWith tracks disk use ... Closed
is depended on by SERVER-45676 Test that a union sub-pipeline is all... Closed
Duplicate
is duplicated by SERVER-45527 Move sharded $lookup/$graphLookup ass... Closed
Problem/Incident
Related
Backwards Compatibility: Fully Compatible
Sprint: Query 2020-01-27, Query 2020-02-10
Participants:
Linked BF Score: 0

 Comments   
Comment by Githook User [ 13/Feb/20 ]

Author:

{'name': 'Ted Tuckman', 'username': 'TedTuckman', 'email': 'ted.tuckman@mongodb.com'}

Message: SERVER-45526 Reclaim lookup performance
Branch: master
https://github.com/mongodb/mongo/commit/173e12f195cf456c6f08d82131256d625c1f583f

Comment by Ted Tuckman [ 03/Feb/20 ]

As a result of this ticket, $lookup will not allow fail in a sharded environment if it has variables and the enableShardedLookup flag is set. This is a change, but as that flag and sharded lookup are not actually supported, this should not have any impact. 

Comment by Githook User [ 03/Feb/20 ]

Author:

{'username': 'TedTuckman', 'name': 'Ted Tuckman', 'email': 'ted.tuckman@mongodb.com'}

Message: SERVER-45526 Enable sharded unionWith

create mode 100644 jstests/aggregation/sources/unionWith/unionWith.js
create mode 100644 jstests/noPassthrough/unionWith_sharded_unsharded_mix.js
Branch: master
https://github.com/mongodb/mongo/commit/88027462fadee67b4e7be0952234af0cee76deff

Generated at Thu Feb 08 05:09:02 UTC 2024 using Jira 9.7.1#970001-sha1:2222b88b221c4928ef0de3161136cc90c8356a66.