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Type: New Feature
Resolution: Duplicate
Priority: Major - P3
Fix Version/s: None
Affects Version/s: None
Component/s: Aggregation Framework
Labels:
- expression
- pm1457-nominee

Assigned Teams:

Query
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

Not clear why $first $last and $addToSet are the only accumulators not available as regular expressions with array argument. In particular $last is helpful to avoid very verbose syntax for $arrayElemAt plus calculate position of last element ($subtract 1 from $size)

duplicates

SERVER-44327 Add $first and $last expressions

Closed

related to

SERVER-15697 Create a string accumulator for aggregation

Backlog

Assignee:: Backlog - Query Team (Inactive)
Reporter:: Asya Kamsky
Participants:: Asya Kamsky, Backlog - Query Team, Craig Homa
Votes:: 0 Vote for this issue
Watchers:: 2 Start watching this issue

Created:: May 28 2019 08:58:40 PM UTC
Updated:: Dec 06 2022 02:58:38 AM UTC
Resolved:: Apr 14 2020 03:44:40 PM UTC

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