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Type: New Feature
Resolution: Fixed
Priority: Major - P3
Fix Version/s: 8.1.0-rc0
Affects Version/s: None
Component/s: Aggregation Framework
Labels:

Assigned Teams:

Query Optimization
Backwards Compatibility:
Fully Compatible
Confidence Status:
None
Work Order:
3

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

I would like to be able to push all elements of an array field into a new field. So, in a $group, I could do a $push or $addToSet of a field that is an array field and the resulting field would be an array of the elements instead of an array of arrays.

Seems like the $each operator in update is the solution if added to aggregations.

is depended on by

COMPASS-8544 Investigate changes in SERVER-16284: Allow for $pushall / $push with $each to allow pushing all elements of array in $group

Closed

TOOLS-3716 Investigate changes in SERVER-16284: Allow for $pushall / $push with $each to allow pushing all elements of array in $group

Closed

is duplicated by

SERVER-23839 Aggregation accumulators does not allow the new "direct" array notation

Closed

SERVER-14340 Option for $addToSet to work on array members

Closed

SERVER-27484 allow $setUnion in $group

Closed

is related to

SERVER-97674 If $concatArrays is present in $group, disable top-k sort absorption into $group timeseries rewrite

Closed

SERVER-97362 $bucketAuto $concatArrays does not preserve order

Closed

SERVER-92388 [SBE] Implement $setUnion group accumulator in SBE

Closed

SERVER-94470 [SBE] Implement $concatArrays group accumulator in SBE

Closed

SERVER-94575 Enable featureFlagArrayAccumulators

Closed

SERVER-94759 [SBE] Implement $setUnion $setWindowFields accumulator in SBE

Closed

SERVER-94760 [SBE] Implement $concatArrays $setWindowFields accumulator in SBE

Closed

SERVER-97514 Remove featureFlagArrayAccumulators

Needs Scheduling

related to

SERVER-44174 $push and $addToSet should restrict memory usage

Closed

SERVER-97355 Add $concatArrays/$setUnion accumulators and window functions to stable API

Closed

SERVER-97514 Remove featureFlagArrayAccumulators

Needs Scheduling

SERVER-29339 allow using $reduce expression as accumulator in $group

Backlog

(8 is related to, 4 related to)

Assignee:: Militsa Sotirova
Reporter:: John Butler
Participants:: Asya Kamsky, Charlie Swanson, David Storch, Githook User, John Butler, Marc Tinkler, Militsa Sotirova, Neil Lunn, Oliver Eberle, Ramon Fernandez Marina
Votes:: 21 Vote for this issue
Watchers:: 34 Start watching this issue

Created:: Nov 22 2014 09:54:05 PM UTC
Updated:: Dec 04 2024 03:58:42 PM UTC
Resolved:: Nov 22 2024 01:36:01 PM UTC
Confidence Status Last Update:: 12/Jun/24 6:23 PM

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