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Type: Improvement
Resolution: Duplicate
Priority: Major - P3
Fix Version/s: None
Affects Version/s: None
Component/s: Aggregation Framework
Labels:
- optimization

Assigned Teams:

Query
Backwards Compatibility:
Fully Compatible
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

We can replace

[ {$project:{a:0}}, {$project:{b:0}}, {$project:{c:0}}]

with

[ {$project:{a:0, b:0, c:0}} ]

which will be faster.

duplicates

SERVER-27744 merge sequential $project stages and $addFields stages when appropriate

Backlog

Assignee:: Backlog - Query Team (Inactive)
Reporter:: Asya Kamsky
Participants:: Asya Kamsky, Backlog - Query Team, Charlie Swanson
Votes:: 0 Vote for this issue
Watchers:: 5 Start watching this issue

Created:: Apr 27 2017 09:23:57 PM UTC
Updated:: Dec 06 2022 04:02:09 AM UTC
Resolved:: Apr 28 2017 07:17:45 PM UTC