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Type: Task
Resolution: Fixed
Priority: Major - P3
Fix Version/s: 4.3.4
Affects Version/s: None
Component/s: None
Labels:
None

Backwards Compatibility:
Fully Compatible
Sprint:
Query 2020-02-10, Query 2020-02-24, Query 2020-03-09
Confidence Status:
None
Work Order:
3
CAR Domain/s:
None

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

Specifically if the cache on mongos for the union'ed collection is stale, the $unionWith should retry it's sub-pipeline only instead of the entire base aggregation.

causes

SERVER-57483 Results from $lookup stage are not cached for a resharding operation's sub-pipeline

Closed

SERVER-57579 DocumentSourceSequentialCache doesn't clone, ruining non-correlated $lookup pipeline caching in sharded deployments

Closed

depends on

SERVER-45526 Support union with sharded collections

Closed

SERVER-45838 Rename/restructure mongo_process_interface classes/files

Closed

is depended on by

SERVER-45712 Remove flag guard for $unionWith

Closed

is duplicated by

SERVER-38758 Avoid restarting $lookup from the top if a stale version error is encountered during a single lookup

Closed

is related to

SERVER-38758 Avoid restarting $lookup from the top if a stale version error is encountered during a single lookup

Closed

(1 is duplicated by, 1 is related to)

Assignee:: Charlie Swanson
Reporter:: Nicholas Zolnierz
Participants:: Charlie Swanson, Githook User, Nicholas Zolnierz
Votes:: 0 Vote for this issue
Watchers:: 2 Start watching this issue

Created:: Jan 13 2020 10:15:54 PM UTC
Updated:: Oct 29 2023 10:13:21 PM UTC
Resolved:: Feb 26 2020 12:43:37 AM UTC
Confidence Status Last Update:: 28/Jan/20 6:05 PM

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